Use https instead of ssh for schemastore authentication

.cargo/config.toml

@@ -2,13 +2,36 @@
 dev = "run --package ruff_dev --bin ruff_dev"
 benchmark = "bench -p ruff_benchmark --bench linter --bench formatter --"
 
-# statically link the C runtime so the executable does not depend on
-# that shared/dynamic library.
-#
-# See: https://github.com/astral-sh/ruff/issues/11503
-[target.'cfg(all(target_env="msvc", target_os = "windows"))']
-rustflags = ["-C", "target-feature=+crt-static"]
-
-[target.'wasm32-unknown-unknown']
-# See https://docs.rs/getrandom/latest/getrandom/#webassembly-support
-rustflags = ["--cfg", 'getrandom_backend="wasm_js"']
+[target.'cfg(all())']
+rustflags = [
+  # CLIPPY LINT SETTINGS
+  # This is a workaround to configure lints for the entire workspace, pending the ability to configure this via TOML.
+  # See: `https://github.com/rust-lang/cargo/issues/5034`
+  #      `https://github.com/EmbarkStudios/rust-ecosystem/issues/22#issuecomment-947011395`
+  "-Dunsafe_code",
+  "-Wclippy::pedantic",
+  # Allowed pedantic lints
+  "-Wclippy::char_lit_as_u8",
+  "-Aclippy::collapsible_else_if",
+  "-Aclippy::collapsible_if",
+  "-Aclippy::implicit_hasher",
+  "-Aclippy::match_same_arms",
+  "-Aclippy::missing_errors_doc",
+  "-Aclippy::missing_panics_doc",
+  "-Aclippy::module_name_repetitions",
+  "-Aclippy::must_use_candidate",
+  "-Aclippy::similar_names",
+  "-Aclippy::too_many_lines",
+  # Disallowed restriction lints
+  "-Wclippy::print_stdout",
+  "-Wclippy::print_stderr",
+  "-Wclippy::dbg_macro",
+  "-Wclippy::empty_drop",
+  "-Wclippy::empty_structs_with_brackets",
+  "-Wclippy::exit",
+  "-Wclippy::get_unwrap",
+  "-Wclippy::rc_buffer",
+  "-Wclippy::rc_mutex",
+  "-Wclippy::rest_pat_in_fully_bound_structs",
+  "-Wunreachable_pub"
+]

.config/nextest.toml

@@ -1,15 +0,0 @@
-[profile.ci]
-# Print out output for failing tests as soon as they fail, and also at the end
-# of the run (for easy scrollability).
-failure-output = "immediate-final"
-# Do not cancel the test run on the first failure.
-fail-fast = false
-
-status-level = "skip"
-
-# Mark tests that take longer than 1s as slow.
-# Terminate after 60s as a stop-gap measure to terminate on deadlock.
-slow-timeout =  { period = "1s", terminate-after = 60 }
-
-# Show slow jobs in the final summary
-final-status-level = "slow"

.devcontainer/devcontainer.json

@@ -20,7 +20,7 @@
 			"extensions": [
 				"ms-python.python",
 				"rust-lang.rust-analyzer",
-				"fill-labs.dependi",
+				"serayuzgur.crates",
 				"tamasfe.even-better-toml",
 				"Swellaby.vscode-rust-test-adapter",
 				"charliermarsh.ruff"

.editorconfig

@@ -17,7 +17,4 @@ indent_size = 4
 trim_trailing_whitespace = false
 
 [*.md]
-max_line_length = 100
-
-[*.toml]
-indent_size = 4
+max_line_length = 100

.gitattributes

@@ -2,26 +2,6 @@
 
 crates/ruff_linter/resources/test/fixtures/isort/line_ending_crlf.py text eol=crlf
 crates/ruff_linter/resources/test/fixtures/pycodestyle/W605_1.py text eol=crlf
-crates/ruff_linter/resources/test/fixtures/pycodestyle/W391_2.py text eol=crlf
-crates/ruff_linter/resources/test/fixtures/pycodestyle/W391_3.py text eol=crlf
 
-crates/ruff_python_formatter/resources/test/fixtures/ruff/docstring_code_examples_crlf.py text eol=crlf
-crates/ruff_python_formatter/tests/snapshots/format@docstring_code_examples_crlf.py.snap text eol=crlf
-
-crates/ruff_python_parser/resources/invalid/re_lexing/line_continuation_windows_eol.py text eol=crlf
-crates/ruff_python_parser/resources/invalid/re_lex_logical_token_windows_eol.py text eol=crlf
-crates/ruff_python_parser/resources/invalid/re_lex_logical_token_mac_eol.py text eol=cr
-
-crates/ruff_linter/resources/test/fixtures/ruff/RUF046_CR.py text eol=cr
-crates/ruff_linter/resources/test/fixtures/ruff/RUF046_LF.py text eol=lf
-
-crates/ruff_linter/resources/test/fixtures/pyupgrade/UP018_CR.py text eol=cr
-crates/ruff_linter/resources/test/fixtures/pyupgrade/UP018_LF.py text eol=lf
-
-crates/ruff_python_parser/resources/inline linguist-generated=true
-
-ruff.schema.json -diff linguist-generated=true text=auto eol=lf
-ty.schema.json -diff linguist-generated=true text=auto eol=lf
-crates/ruff_python_ast/src/generated.rs -diff linguist-generated=true text=auto eol=lf
-crates/ruff_python_formatter/src/generated.rs -diff linguist-generated=true text=auto eol=lf
+ruff.schema.json linguist-generated=true text=auto eol=lf
 *.md.snap linguist-language=Markdown

.github/CODEOWNERS

@@ -5,20 +5,5 @@
 # - The '*' pattern is global owners.
 # - Order is important. The last matching pattern has the most precedence.
 
-/crates/ruff_notebook/ @dhruvmanila
-/crates/ruff_formatter/ @MichaReiser
-/crates/ruff_python_formatter/ @MichaReiser
-/crates/ruff_python_parser/ @MichaReiser @dhruvmanila
-/crates/ruff_annotate_snippets/ @BurntSushi
-
-# flake8-pyi
-/crates/ruff_linter/src/rules/flake8_pyi/ @AlexWaygood
-
-# Script for fuzzing the parser/ty etc.
-/python/py-fuzzer/ @AlexWaygood
-
-# ty
-/crates/ty* @carljm @MichaReiser @AlexWaygood @sharkdp @dcreager
-/crates/ruff_db/ @carljm @MichaReiser @AlexWaygood @sharkdp @dcreager
-/scripts/ty_benchmark/ @carljm @MichaReiser @AlexWaygood @sharkdp @dcreager
-/crates/ty_python_semantic @carljm @AlexWaygood @sharkdp @dcreager
+# Jupyter
+/crates/ruff_linter/src/jupyter/ @dhruvmanila

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,10 @@
+<!--
+Thank you for taking the time to report an issue! We're glad to have you involved with Ruff.
+
+If you're filing a bug report, please consider including the following information:
+
+* A minimal code snippet that reproduces the bug.
+* The command you invoked (e.g., `ruff /path/to/file.py --fix`), ideally including the `--isolated` flag.
+* The current Ruff settings (any relevant sections from your `pyproject.toml`).
+* The current Ruff version (`ruff --version`).
+-->

.github/ISSUE_TEMPLATE/1_bug_report.yaml

@@ -1,31 +0,0 @@
-name: Bug report
-description: Report an error or unexpected behavior
-body:
-  - type: markdown
-    attributes:
-      value: |
-        Thank you for taking the time to report an issue! We're glad to have you involved with Ruff.
-
-        **Before reporting, please make sure to search through [existing issues](https://github.com/astral-sh/ruff/issues?q=is:issue+is:open+label:bug) (including [closed](https://github.com/astral-sh/ruff/issues?q=is:issue%20state:closed%20label:bug)).**
-
-  - type: textarea
-    attributes:
-      label: Summary
-      description: |
-        A clear and concise description of the bug, including a minimal reproducible example.
-
-        Be sure to include the command you invoked (e.g., `ruff check /path/to/file.py --fix`), ideally including the `--isolated` flag and
-        the current Ruff settings (e.g., relevant sections from your `pyproject.toml`).
-
-        If possible, try to include the [playground](https://play.ruff.rs) link that reproduces this issue.
-
-    validations:
-      required: true
-
-  - type: input
-    attributes:
-      label: Version
-      description: What version of ruff are you using? (see `ruff version`)
-      placeholder: e.g., ruff 0.9.3 (90589372d 2025-01-23)
-    validations:
-      required: false

.github/ISSUE_TEMPLATE/2_rule_request.yaml

@@ -1,10 +0,0 @@
-name: Rule request
-description: Anything related to lint rules (proposing new rules, changes to existing rules, auto-fixes, etc.)
-body:
-  - type: textarea
-    attributes:
-      label: Summary
-      description: |
-        A clear and concise description of the relevant request. If applicable, please describe the current behavior as well.
-    validations:
-      required: true

.github/ISSUE_TEMPLATE/3_question.yaml

@@ -1,18 +0,0 @@
-name: Question
-description: Ask a question about Ruff
-labels: ["question"]
-body:
-  - type: textarea
-    attributes:
-      label: Question
-      description: Describe your question in detail.
-    validations:
-      required: true
-
-  - type: input
-    attributes:
-      label: Version
-      description: What version of ruff are you using? (see `ruff version`)
-      placeholder: e.g., ruff 0.9.3 (90589372d 2025-01-23)
-    validations:
-      required: false

.github/ISSUE_TEMPLATE/config.yml

@@ -1,11 +0,0 @@
-blank_issues_enabled: true
-contact_links:
-  - name: Report an issue with ty
-    url: https://github.com/astral-sh/ty/issues/new/choose
-    about: Please report issues for our type checker ty in the ty repository.
-  - name: Documentation
-    url: https://docs.astral.sh/ruff
-    about: Please consult the documentation before creating an issue.
-  - name: Community
-    url: https://discord.com/invite/astral-sh
-    about: Join our Discord community to ask questions and collaborate.

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,9 +1,8 @@
 <!--
-Thank you for contributing to Ruff/ty! To help us out with reviewing, please consider the following:
+Thank you for contributing to Ruff! To help us out with reviewing, please consider the following:
 
 - Does this pull request include a summary of the change? (See below.)
-- Does this pull request include a descriptive title? (Please prefix with `[ty]` for ty pull
-  requests.)
+- Does this pull request include a descriptive title?
 - Does this pull request include references to any relevant issues?
 -->
 

.github/actionlint.yaml

@@ -1,11 +0,0 @@
-# Configuration for the actionlint tool, which we run via pre-commit
-# to verify the correctness of the syntax in our GitHub Actions workflows.
-
-self-hosted-runner:
-  # Various runners we use that aren't recognized out-of-the-box by actionlint:
-  labels:
-    - depot-ubuntu-latest-8
-    - depot-ubuntu-22.04-16
-    - depot-ubuntu-22.04-32
-    - github-windows-2025-x86_64-8
-    - github-windows-2025-x86_64-16

.github/dependabot.yml

@@ -0,0 +1,13 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    labels: ["internal"]
+
+  - package-ecosystem: "cargo"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    labels: ["internal"]

.github/mypy-primer-ty.toml

@@ -1,8 +0,0 @@
-#:schema ../ty.schema.json
-# Configuration overrides for the mypy primer run
-
-# Enable off-by-default rules.
-[rules]
-possibly-unresolved-reference = "warn"
-unused-ignore-comment = "warn"
-division-by-zero = "warn"

.github/renovate.json5

@@ -1,115 +0,0 @@
-{
-  $schema: "https://docs.renovatebot.com/renovate-schema.json",
-  dependencyDashboard: true,
-  suppressNotifications: ["prEditedNotification"],
-  extends: ["config:recommended"],
-  labels: ["internal"],
-  schedule: ["before 4am on Monday"],
-  semanticCommits: "disabled",
-  separateMajorMinor: false,
-  prHourlyLimit: 10,
-  enabledManagers: ["github-actions", "pre-commit", "cargo", "pep621", "pip_requirements", "npm"],
-  cargo: {
-    // See https://docs.renovatebot.com/configuration-options/#rangestrategy
-    rangeStrategy: "update-lockfile",
-  },
-  pep621: {
-    // The default for this package manager is to only search for `pyproject.toml` files
-    // found at the repository root: https://docs.renovatebot.com/modules/manager/pep621/#file-matching
-    fileMatch: ["^(python|scripts)/.*pyproject\\.toml$"],
-  },
-  pip_requirements: {
-    // The default for this package manager is to run on all requirements.txt files:
-    // https://docs.renovatebot.com/modules/manager/pip_requirements/#file-matching
-    // `fileMatch` doesn't work for excluding files; to exclude `requirements.txt` files
-    // outside the `doc/` directory, we instead have to use `ignorePaths`. Unlike `fileMatch`,
-    // which takes a regex string, `ignorePaths` takes a glob string, so we have to use
-    // a "negative glob pattern".
-    // See:
-    // - https://docs.renovatebot.com/modules/manager/#ignoring-files-that-match-the-default-filematch
-    // - https://docs.renovatebot.com/configuration-options/#ignorepaths
-    // - https://docs.renovatebot.com/string-pattern-matching/#negative-matching
-    ignorePaths: ["!docs/requirements*.txt"]
-  },
-  npm: {
-    // The default for this package manager is to only search for `package.json` files
-    // found at the repository root: https://docs.renovatebot.com/modules/manager/npm/#file-matching
-    fileMatch: ["^playground/.*package\\.json$"],
-  },
-  "pre-commit": {
-    enabled: true,
-  },
-  packageRules: [
-    // Pin GitHub Actions to immutable SHAs.
-    {
-      matchDepTypes: ["action"],
-      pinDigests: true,
-    },
-    // Annotate GitHub Actions SHAs with a SemVer version.
-    {
-      extends: ["helpers:pinGitHubActionDigests"],
-      extractVersion: "^(?<version>v?\\d+\\.\\d+\\.\\d+)$",
-      versioning: "regex:^v?(?<major>\\d+)(\\.(?<minor>\\d+)\\.(?<patch>\\d+))?$",
-    },
-    {
-      // Group upload/download artifact updates, the versions are dependent
-      groupName: "Artifact GitHub Actions dependencies",
-      matchManagers: ["github-actions"],
-      matchDatasources: ["gitea-tags", "github-tags"],
-      matchPackageNames: ["actions/.*-artifact"],
-      description: "Weekly update of artifact-related GitHub Actions dependencies",
-    },
-    {
-      // This package rule disables updates for GitHub runners:
-      // we'd only pin them to a specific version
-      // if there was a deliberate reason to do so
-      groupName: "GitHub runners",
-      matchManagers: ["github-actions"],
-      matchDatasources: ["github-runners"],
-      description: "Disable PRs updating GitHub runners (e.g. 'runs-on: macos-14')",
-      enabled: false,
-    },
-    {
-      // Disable updates of `zip-rs`; intentionally pinned for now due to ownership change
-      // See: https://github.com/astral-sh/uv/issues/3642
-      matchPackageNames: ["zip"],
-      matchManagers: ["cargo"],
-      enabled: false,
-    },
-    {
-      // `mkdocs-material` requires a manual update to keep the version in sync
-      // with `mkdocs-material-insider`.
-      // See: https://squidfunk.github.io/mkdocs-material/insiders/upgrade/
-      matchManagers: ["pip_requirements"],
-      matchPackageNames: ["mkdocs-material"],
-      enabled: false,
-    },
-    {
-      groupName: "pre-commit dependencies",
-      matchManagers: ["pre-commit"],
-      description: "Weekly update of pre-commit dependencies",
-    },
-    {
-      groupName: "NPM Development dependencies",
-      matchManagers: ["npm"],
-      matchDepTypes: ["devDependencies"],
-      description: "Weekly update of NPM development dependencies",
-    },
-    {
-      groupName: "Monaco",
-      matchManagers: ["npm"],
-      matchPackageNames: ["monaco"],
-      description: "Weekly update of the Monaco editor",
-    },
-    {
-      groupName: "strum",
-      matchManagers: ["cargo"],
-      matchPackageNames: ["strum"],
-      description: "Weekly update of strum dependencies",
-    }
-  ],
-  vulnerabilityAlerts: {
-    commitMessageSuffix: "",
-    labels: ["internal", "security"],
-  },
-}

.github/workflows/build-binaries.yml

@@ -1,480 +0,0 @@
-# Build ruff on all platforms.
-#
-# Generates both wheels (for PyPI) and archived binaries (for GitHub releases).
-#
-# Assumed to run as a subworkflow of .github/workflows/release.yml; specifically, as a local
-# artifacts job within `cargo-dist`.
-name: "Build binaries"
-
-on:
-  workflow_call:
-    inputs:
-      plan:
-        required: true
-        type: string
-  pull_request:
-    paths:
-      # When we change pyproject.toml, we want to ensure that the maturin builds still work.
-      - pyproject.toml
-      # And when we change this workflow itself...
-      - .github/workflows/build-binaries.yml
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-permissions: {}
-
-env:
-  PACKAGE_NAME: ruff
-  MODULE_NAME: ruff
-  PYTHON_VERSION: "3.13"
-  CARGO_INCREMENTAL: 0
-  CARGO_NET_RETRY: 10
-  CARGO_TERM_COLOR: always
-  RUSTUP_MAX_RETRIES: 10
-
-jobs:
-  sdist:
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-build') }}
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          submodules: recursive
-          persist-credentials: false
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-      - name: "Prep README.md"
-        run: python scripts/transform_readme.py --target pypi
-      - name: "Build sdist"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
-        with:
-          command: sdist
-          args: --out dist
-      - name: "Test sdist"
-        run: |
-          pip install dist/"${PACKAGE_NAME}"-*.tar.gz --force-reinstall
-          "${MODULE_NAME}" --help
-          python -m "${MODULE_NAME}" --help
-      - name: "Upload sdist"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: wheels-sdist
-          path: dist
-
-  macos-x86_64:
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-build') }}
-    runs-on: macos-14
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          submodules: recursive
-          persist-credentials: false
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-          architecture: x64
-      - name: "Prep README.md"
-        run: python scripts/transform_readme.py --target pypi
-      - name: "Build wheels - x86_64"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
-        with:
-          target: x86_64
-          args: --release --locked --out dist
-      - name: "Upload wheels"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: wheels-macos-x86_64
-          path: dist
-      - name: "Archive binary"
-        run: |
-          TARGET=x86_64-apple-darwin
-          ARCHIVE_NAME=ruff-$TARGET
-          ARCHIVE_FILE=$ARCHIVE_NAME.tar.gz
-
-          mkdir -p $ARCHIVE_NAME
-          cp target/$TARGET/release/ruff $ARCHIVE_NAME/ruff
-          tar czvf $ARCHIVE_FILE $ARCHIVE_NAME
-          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
-      - name: "Upload binary"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: artifacts-macos-x86_64
-          path: |
-            *.tar.gz
-            *.sha256
-
-  macos-aarch64:
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-build') }}
-    runs-on: macos-14
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          submodules: recursive
-          persist-credentials: false
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-          architecture: arm64
-      - name: "Prep README.md"
-        run: python scripts/transform_readme.py --target pypi
-      - name: "Build wheels - aarch64"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
-        with:
-          target: aarch64
-          args: --release --locked --out dist
-      - name: "Test wheel - aarch64"
-        run: |
-          pip install dist/"${PACKAGE_NAME}"-*.whl --force-reinstall
-          ruff --help
-          python -m ruff --help
-      - name: "Upload wheels"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: wheels-aarch64-apple-darwin
-          path: dist
-      - name: "Archive binary"
-        run: |
-          TARGET=aarch64-apple-darwin
-          ARCHIVE_NAME=ruff-$TARGET
-          ARCHIVE_FILE=$ARCHIVE_NAME.tar.gz
-
-          mkdir -p $ARCHIVE_NAME
-          cp target/$TARGET/release/ruff $ARCHIVE_NAME/ruff
-          tar czvf $ARCHIVE_FILE $ARCHIVE_NAME
-          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
-      - name: "Upload binary"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: artifacts-aarch64-apple-darwin
-          path: |
-            *.tar.gz
-            *.sha256
-
-  windows:
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-build') }}
-    runs-on: windows-latest
-    strategy:
-      matrix:
-        platform:
-          - target: x86_64-pc-windows-msvc
-            arch: x64
-          - target: i686-pc-windows-msvc
-            arch: x86
-          - target: aarch64-pc-windows-msvc
-            arch: x64
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          submodules: recursive
-          persist-credentials: false
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-          architecture: ${{ matrix.platform.arch }}
-      - name: "Prep README.md"
-        run: python scripts/transform_readme.py --target pypi
-      - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
-        with:
-          target: ${{ matrix.platform.target }}
-          args: --release --locked --out dist
-        env:
-          # aarch64 build fails, see https://github.com/PyO3/maturin/issues/2110
-          XWIN_VERSION: 16
-      - name: "Test wheel"
-        if: ${{ !startsWith(matrix.platform.target, 'aarch64') }}
-        shell: bash
-        run: |
-          python -m pip install dist/"${PACKAGE_NAME}"-*.whl --force-reinstall
-          "${MODULE_NAME}" --help
-          python -m "${MODULE_NAME}" --help
-      - name: "Upload wheels"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: wheels-${{ matrix.platform.target }}
-          path: dist
-      - name: "Archive binary"
-        shell: bash
-        run: |
-          ARCHIVE_FILE=ruff-${{ matrix.platform.target }}.zip
-          7z a $ARCHIVE_FILE ./target/${{ matrix.platform.target }}/release/ruff.exe
-          sha256sum $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
-      - name: "Upload binary"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: artifacts-${{ matrix.platform.target }}
-          path: |
-            *.zip
-            *.sha256
-
-  linux:
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-build') }}
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        target:
-          - x86_64-unknown-linux-gnu
-          - i686-unknown-linux-gnu
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          submodules: recursive
-          persist-credentials: false
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-          architecture: x64
-      - name: "Prep README.md"
-        run: python scripts/transform_readme.py --target pypi
-      - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
-        with:
-          target: ${{ matrix.target }}
-          manylinux: auto
-          args: --release --locked --out dist
-      - name: "Test wheel"
-        if: ${{ startsWith(matrix.target, 'x86_64') }}
-        run: |
-          pip install dist/"${PACKAGE_NAME}"-*.whl --force-reinstall
-          "${MODULE_NAME}" --help
-          python -m "${MODULE_NAME}" --help
-      - name: "Upload wheels"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: wheels-${{ matrix.target }}
-          path: dist
-      - name: "Archive binary"
-        shell: bash
-        run: |
-          set -euo pipefail
-
-          TARGET=${{ matrix.target }}
-          ARCHIVE_NAME=ruff-$TARGET
-          ARCHIVE_FILE=$ARCHIVE_NAME.tar.gz
-
-          mkdir -p $ARCHIVE_NAME
-          cp target/$TARGET/release/ruff $ARCHIVE_NAME/ruff
-          tar czvf $ARCHIVE_FILE $ARCHIVE_NAME
-          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
-      - name: "Upload binary"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: artifacts-${{ matrix.target }}
-          path: |
-            *.tar.gz
-            *.sha256
-
-  linux-cross:
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-build') }}
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        platform:
-          - target: aarch64-unknown-linux-gnu
-            arch: aarch64
-            # see https://github.com/astral-sh/ruff/issues/3791
-            # and https://github.com/gnzlbg/jemallocator/issues/170#issuecomment-1503228963
-            maturin_docker_options: -e JEMALLOC_SYS_WITH_LG_PAGE=16
-          - target: armv7-unknown-linux-gnueabihf
-            arch: armv7
-          - target: s390x-unknown-linux-gnu
-            arch: s390x
-          - target: powerpc64le-unknown-linux-gnu
-            arch: ppc64le
-            # see https://github.com/astral-sh/ruff/issues/10073
-            maturin_docker_options: -e JEMALLOC_SYS_WITH_LG_PAGE=16
-          - target: powerpc64-unknown-linux-gnu
-            arch: ppc64
-            # see https://github.com/astral-sh/ruff/issues/10073
-            maturin_docker_options: -e JEMALLOC_SYS_WITH_LG_PAGE=16
-          - target: arm-unknown-linux-musleabihf
-            arch: arm
-
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          submodules: recursive
-          persist-credentials: false
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-      - name: "Prep README.md"
-        run: python scripts/transform_readme.py --target pypi
-      - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
-        with:
-          target: ${{ matrix.platform.target }}
-          manylinux: auto
-          docker-options: ${{ matrix.platform.maturin_docker_options }}
-          args: --release --locked --out dist
-      - uses: uraimo/run-on-arch-action@d94c13912ea685de38fccc1109385b83fd79427d # v3.0.1
-        if: ${{ matrix.platform.arch != 'ppc64' && matrix.platform.arch != 'ppc64le'}}
-        name: Test wheel
-        with:
-          arch: ${{ matrix.platform.arch == 'arm' && 'armv6' || matrix.platform.arch }}
-          distro: ${{ matrix.platform.arch == 'arm' && 'bullseye' || 'ubuntu20.04' }}
-          githubToken: ${{ github.token }}
-          install: |
-            apt-get update
-            apt-get install -y --no-install-recommends python3 python3-pip
-            pip3 install -U pip
-          run: |
-            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
-            ruff --help
-      - name: "Upload wheels"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: wheels-${{ matrix.platform.target }}
-          path: dist
-      - name: "Archive binary"
-        shell: bash
-        run: |
-          set -euo pipefail
-
-          TARGET=${{ matrix.platform.target }}
-          ARCHIVE_NAME=ruff-$TARGET
-          ARCHIVE_FILE=$ARCHIVE_NAME.tar.gz
-
-          mkdir -p $ARCHIVE_NAME
-          cp target/$TARGET/release/ruff $ARCHIVE_NAME/ruff
-          tar czvf $ARCHIVE_FILE $ARCHIVE_NAME
-          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
-      - name: "Upload binary"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: artifacts-${{ matrix.platform.target }}
-          path: |
-            *.tar.gz
-            *.sha256
-
-  musllinux:
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-build') }}
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        target:
-          - x86_64-unknown-linux-musl
-          - i686-unknown-linux-musl
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          submodules: recursive
-          persist-credentials: false
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-          architecture: x64
-      - name: "Prep README.md"
-        run: python scripts/transform_readme.py --target pypi
-      - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
-        with:
-          target: ${{ matrix.target }}
-          manylinux: musllinux_1_2
-          args: --release --locked --out dist
-      - name: "Test wheel"
-        if: matrix.target == 'x86_64-unknown-linux-musl'
-        uses: addnab/docker-run-action@4f65fabd2431ebc8d299f8e5a018d79a769ae185 # v3
-        with:
-          image: alpine:latest
-          options: -v ${{ github.workspace }}:/io -w /io
-          run: |
-            apk add python3
-            python -m venv .venv
-            .venv/bin/pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
-            .venv/bin/${{ env.MODULE_NAME }} --help
-      - name: "Upload wheels"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: wheels-${{ matrix.target }}
-          path: dist
-      - name: "Archive binary"
-        shell: bash
-        run: |
-          set -euo pipefail
-
-          TARGET=${{ matrix.target }}
-          ARCHIVE_NAME=ruff-$TARGET
-          ARCHIVE_FILE=$ARCHIVE_NAME.tar.gz
-
-          mkdir -p $ARCHIVE_NAME
-          cp target/$TARGET/release/ruff $ARCHIVE_NAME/ruff
-          tar czvf $ARCHIVE_FILE $ARCHIVE_NAME
-          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
-      - name: "Upload binary"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: artifacts-${{ matrix.target }}
-          path: |
-            *.tar.gz
-            *.sha256
-
-  musllinux-cross:
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-build') }}
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        platform:
-          - target: aarch64-unknown-linux-musl
-            arch: aarch64
-            maturin_docker_options: -e JEMALLOC_SYS_WITH_LG_PAGE=16
-          - target: armv7-unknown-linux-musleabihf
-            arch: armv7
-
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          submodules: recursive
-          persist-credentials: false
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-      - name: "Prep README.md"
-        run: python scripts/transform_readme.py --target pypi
-      - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
-        with:
-          target: ${{ matrix.platform.target }}
-          manylinux: musllinux_1_2
-          args: --release --locked --out dist
-          docker-options: ${{ matrix.platform.maturin_docker_options }}
-      - uses: uraimo/run-on-arch-action@d94c13912ea685de38fccc1109385b83fd79427d # v3.0.1
-        name: Test wheel
-        with:
-          arch: ${{ matrix.platform.arch }}
-          distro: alpine_latest
-          githubToken: ${{ github.token }}
-          install: |
-            apk add python3
-          run: |
-            python -m venv .venv
-            .venv/bin/pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
-            .venv/bin/${{ env.MODULE_NAME }} --help
-      - name: "Upload wheels"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: wheels-${{ matrix.platform.target }}
-          path: dist
-      - name: "Archive binary"
-        shell: bash
-        run: |
-          set -euo pipefail
-
-          TARGET=${{ matrix.platform.target }}
-          ARCHIVE_NAME=ruff-$TARGET
-          ARCHIVE_FILE=$ARCHIVE_NAME.tar.gz
-
-          mkdir -p $ARCHIVE_NAME
-          cp target/$TARGET/release/ruff $ARCHIVE_NAME/ruff
-          tar czvf $ARCHIVE_FILE $ARCHIVE_NAME
-          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
-      - name: "Upload binary"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: artifacts-${{ matrix.platform.target }}
-          path: |
-            *.tar.gz
-            *.sha256

.github/workflows/build-docker.yml

@@ -1,299 +0,0 @@
-# Build and publish a Docker image.
-#
-# Assumed to run as a subworkflow of .github/workflows/release.yml; specifically, as a local
-# artifacts job within `cargo-dist`.
-#
-# TODO(charlie): Ideally, the publish step would happen as a publish job within `cargo-dist`, but
-# sharing the built image as an artifact between jobs is challenging.
-name: "[ruff] Build Docker image"
-
-on:
-  workflow_call:
-    inputs:
-      plan:
-        required: true
-        type: string
-  pull_request:
-    paths:
-      - .github/workflows/build-docker.yml
-
-env:
-  RUFF_BASE_IMG: ghcr.io/${{ github.repository_owner }}/ruff
-
-jobs:
-  docker-build:
-    name: Build Docker image (ghcr.io/astral-sh/ruff) for ${{ matrix.platform }}
-    runs-on: ubuntu-latest
-    environment:
-      name: release
-    strategy:
-      fail-fast: false
-      matrix:
-        platform:
-          - linux/amd64
-          - linux/arm64
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          submodules: recursive
-          persist-credentials: false
-
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3.10.0
-
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Check tag consistency
-        if: ${{ inputs.plan != '' && !fromJson(inputs.plan).announcement_tag_is_implicit }}
-        env:
-          TAG: ${{ inputs.plan != '' && fromJson(inputs.plan).announcement_tag || 'dry-run' }}
-        run: |
-          version=$(grep -m 1 "^version = " pyproject.toml | sed -e 's/version = "\(.*\)"/\1/g')
-          if [ "${TAG}" != "${version}" ]; then
-            echo "The input tag does not match the version from pyproject.toml:" >&2
-            echo "${TAG}" >&2
-            echo "${version}" >&2
-            exit 1
-          else
-            echo "Releasing ${version}"
-          fi
-
-      - name: Extract metadata (tags, labels) for Docker
-        id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
-        with:
-          images: ${{ env.RUFF_BASE_IMG }}
-          # Defining this makes sure the org.opencontainers.image.version OCI label becomes the actual release version and not the branch name
-          tags: |
-            type=raw,value=dry-run,enable=${{ inputs.plan == '' || fromJson(inputs.plan).announcement_tag_is_implicit }}
-            type=pep440,pattern={{ version }},value=${{ inputs.plan != '' && fromJson(inputs.plan).announcement_tag || 'dry-run' }},enable=${{ inputs.plan != '' && !fromJson(inputs.plan).announcement_tag_is_implicit }}
-
-      - name: Normalize Platform Pair (replace / with -)
-        run: |
-          platform=${{ matrix.platform }}
-          echo "PLATFORM_TUPLE=${platform//\//-}" >> "$GITHUB_ENV"
-
-      # Adapted from https://docs.docker.com/build/ci/github-actions/multi-platform/
-      - name: Build and push by digest
-        id: build
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
-        with:
-          context: .
-          platforms: ${{ matrix.platform }}
-          cache-from: type=gha,scope=ruff-${{ env.PLATFORM_TUPLE }}
-          cache-to: type=gha,mode=min,scope=ruff-${{ env.PLATFORM_TUPLE }}
-          labels: ${{ steps.meta.outputs.labels }}
-          outputs: type=image,name=${{ env.RUFF_BASE_IMG }},push-by-digest=true,name-canonical=true,push=${{ inputs.plan != '' && !fromJson(inputs.plan).announcement_tag_is_implicit }}
-
-      - name: Export digests
-        env:
-          digest: ${{ steps.build.outputs.digest }}
-        run: |
-          mkdir -p /tmp/digests
-          touch "/tmp/digests/${digest#sha256:}"
-
-      - name: Upload digests
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: digests-${{ env.PLATFORM_TUPLE }}
-          path: /tmp/digests/*
-          if-no-files-found: error
-          retention-days: 1
-
-  docker-publish:
-    name: Publish Docker image (ghcr.io/astral-sh/ruff)
-    runs-on: ubuntu-latest
-    environment:
-      name: release
-    needs:
-      - docker-build
-    if: ${{ inputs.plan != '' && !fromJson(inputs.plan).announcement_tag_is_implicit }}
-    steps:
-      - name: Download digests
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
-        with:
-          path: /tmp/digests
-          pattern: digests-*
-          merge-multiple: true
-
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3.10.0
-
-      - name: Extract metadata (tags, labels) for Docker
-        id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
-        with:
-          images: ${{ env.RUFF_BASE_IMG }}
-          # Order is on purpose such that the label org.opencontainers.image.version has the first pattern with the full version
-          tags: |
-            type=pep440,pattern={{ version }},value=${{ fromJson(inputs.plan).announcement_tag }}
-            type=pep440,pattern={{ major }}.{{ minor }},value=${{ fromJson(inputs.plan).announcement_tag }}
-
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      # Adapted from https://docs.docker.com/build/ci/github-actions/multi-platform/
-      - name: Create manifest list and push
-        working-directory: /tmp/digests
-        # The jq command expands the docker/metadata json "tags" array entry to `-t tag1 -t tag2 ...` for each tag in the array
-        # The printf will expand the base image with the `<RUFF_BASE_IMG>@sha256:<sha256> ...` for each sha256 in the directory
-        # The final command becomes `docker buildx imagetools create -t tag1 -t tag2 ... <RUFF_BASE_IMG>@sha256:<sha256_1> <RUFF_BASE_IMG>@sha256:<sha256_2> ...`
-        run: |
-          # shellcheck disable=SC2046
-          docker buildx imagetools create \
-            $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
-            $(printf "${RUFF_BASE_IMG}@sha256:%s " *)
-
-  docker-publish-extra:
-    name: Publish additional Docker image based on ${{ matrix.image-mapping }}
-    runs-on: ubuntu-latest
-    environment:
-      name: release
-    needs:
-      - docker-publish
-    if: ${{ inputs.plan != '' && !fromJson(inputs.plan).announcement_tag_is_implicit }}
-    strategy:
-      fail-fast: false
-      matrix:
-        # Mapping of base image followed by a comma followed by one or more base tags (comma separated)
-        # Note, org.opencontainers.image.version label will use the first base tag (use the most specific tag first)
-        image-mapping:
-          - alpine:3.21,alpine3.21,alpine
-          - debian:bookworm-slim,bookworm-slim,debian-slim
-          - buildpack-deps:bookworm,bookworm,debian
-    steps:
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3.10.0
-
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Generate Dynamic Dockerfile Tags
-        shell: bash
-        env:
-          TAG_VALUE: ${{ fromJson(inputs.plan).announcement_tag }}
-        run: |
-          set -euo pipefail
-
-          # Extract the image and tags from the matrix variable
-          IFS=',' read -r BASE_IMAGE BASE_TAGS <<< "${{ matrix.image-mapping }}"
-
-          # Generate Dockerfile content
-          cat <<EOF > Dockerfile
-          FROM ${BASE_IMAGE}
-          COPY --from=${RUFF_BASE_IMG}:latest /ruff /usr/local/bin/ruff
-          ENTRYPOINT []
-          CMD ["/usr/local/bin/ruff"]
-          EOF
-
-          # Initialize a variable to store all tag docker metadata patterns
-          TAG_PATTERNS=""
-
-          # Loop through all base tags and append its docker metadata pattern to the list
-          # Order is on purpose such that the label org.opencontainers.image.version has the first pattern with the full version
-          IFS=','; for TAG in ${BASE_TAGS}; do
-            TAG_PATTERNS="${TAG_PATTERNS}type=pep440,pattern={{ version }},suffix=-${TAG},value=${TAG_VALUE}\n"
-            TAG_PATTERNS="${TAG_PATTERNS}type=pep440,pattern={{ major }}.{{ minor }},suffix=-${TAG},value=${TAG_VALUE}\n"
-            TAG_PATTERNS="${TAG_PATTERNS}type=raw,value=${TAG}\n"
-          done
-
-          # Remove the trailing newline from the pattern list
-          TAG_PATTERNS="${TAG_PATTERNS%\\n}"
-
-          # Export image cache name
-          echo "IMAGE_REF=${BASE_IMAGE//:/-}" >> "$GITHUB_ENV"
-
-          # Export tag patterns using the multiline env var syntax
-          {
-            echo "TAG_PATTERNS<<EOF"
-            echo -e "${TAG_PATTERNS}"
-            echo EOF
-          } >> "$GITHUB_ENV"
-
-      - name: Extract metadata (tags, labels) for Docker
-        id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
-        # ghcr.io prefers index level annotations
-        env:
-          DOCKER_METADATA_ANNOTATIONS_LEVELS: index
-        with:
-          images: ${{ env.RUFF_BASE_IMG }}
-          flavor: |
-            latest=false
-          tags: |
-            ${{ env.TAG_PATTERNS }}
-
-      - name: Build and push
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
-        with:
-          context: .
-          platforms: linux/amd64,linux/arm64
-          # We do not really need to cache here as the Dockerfile is tiny
-          #cache-from: type=gha,scope=ruff-${{ env.IMAGE_REF }}
-          #cache-to: type=gha,mode=min,scope=ruff-${{ env.IMAGE_REF }}
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          annotations: ${{ steps.meta.outputs.annotations }}
-
-  # This is effectively a duplicate of `docker-publish` to make https://github.com/astral-sh/ruff/pkgs/container/ruff
-  # show the ruff base image first since GitHub always shows the last updated image digests
-  # This works by annotating the original digests (previously non-annotated) which triggers an update to ghcr.io
-  docker-republish:
-    name: Annotate Docker image (ghcr.io/astral-sh/ruff)
-    runs-on: ubuntu-latest
-    environment:
-      name: release
-    needs:
-      - docker-publish-extra
-    if: ${{ inputs.plan != '' && !fromJson(inputs.plan).announcement_tag_is_implicit }}
-    steps:
-      - name: Download digests
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
-        with:
-          path: /tmp/digests
-          pattern: digests-*
-          merge-multiple: true
-
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3.10.0
-
-      - name: Extract metadata (tags, labels) for Docker
-        id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
-        env:
-          DOCKER_METADATA_ANNOTATIONS_LEVELS: index
-        with:
-          images: ${{ env.RUFF_BASE_IMG }}
-          # Order is on purpose such that the label org.opencontainers.image.version has the first pattern with the full version
-          tags: |
-            type=pep440,pattern={{ version }},value=${{ fromJson(inputs.plan).announcement_tag }}
-            type=pep440,pattern={{ major }}.{{ minor }},value=${{ fromJson(inputs.plan).announcement_tag }}
-
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      # Adapted from https://docs.docker.com/build/ci/github-actions/multi-platform/
-      - name: Create manifest list and push
-        working-directory: /tmp/digests
-        # The readarray part is used to make sure the quoting and special characters are preserved on expansion (e.g. spaces)
-        # The jq command expands the docker/metadata json "tags" array entry to `-t tag1 -t tag2 ...` for each tag in the array
-        # The printf will expand the base image with the `<RUFF_BASE_IMG>@sha256:<sha256> ...` for each sha256 in the directory
-        # The final command becomes `docker buildx imagetools create -t tag1 -t tag2 ... <RUFF_BASE_IMG>@sha256:<sha256_1> <RUFF_BASE_IMG>@sha256:<sha256_2> ...`
-        run: |
-          readarray -t lines <<< "$DOCKER_METADATA_OUTPUT_ANNOTATIONS"; annotations=(); for line in "${lines[@]}"; do annotations+=(--annotation "$line"); done
-
-          # shellcheck disable=SC2046
-          docker buildx imagetools create \
-            "${annotations[@]}" \
-            $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
-            $(printf "${RUFF_BASE_IMG}@sha256:%s " *)

.github/workflows/daily_fuzz.yaml

@@ -1,78 +0,0 @@
-name: Daily parser fuzz
-
-on:
-  workflow_dispatch:
-  schedule:
-    - cron: "0 0 * * *"
-  pull_request:
-    paths:
-      - ".github/workflows/daily_fuzz.yaml"
-
-permissions:
-  contents: read
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
-  cancel-in-progress: true
-
-env:
-  CARGO_INCREMENTAL: 0
-  CARGO_NET_RETRY: 10
-  CARGO_TERM_COLOR: always
-  RUSTUP_MAX_RETRIES: 10
-  PACKAGE_NAME: ruff
-  FORCE_COLOR: 1
-
-jobs:
-  fuzz:
-    name: Fuzz
-    runs-on: ubuntu-latest
-    timeout-minutes: 20
-    # Don't run the cron job on forks:
-    if: ${{ github.repository == 'astral-sh/ruff' || github.event_name != 'schedule' }}
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          persist-credentials: false
-      - uses: astral-sh/setup-uv@f0ec1fc3b38f5e7cd731bb6ce540c5af426746bb # v6.1.0
-      - name: "Install Rust toolchain"
-        run: rustup show
-      - name: "Install mold"
-        uses: rui314/setup-mold@67424c1b3680e35255d95971cbd5de0047bf31c3 # v1
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
-      - name: Build ruff
-        # A debug build means the script runs slower once it gets started,
-        # but this is outweighed by the fact that a release build takes *much* longer to compile in CI
-        run: cargo build --locked
-      - name: Fuzz
-        run: |
-          # shellcheck disable=SC2046
-          (
-            uvx \
-            --python=3.12 \
-            --from=./python/py-fuzzer \
-            fuzz \
-            --test-executable=target/debug/ruff \
-            --bin=ruff \
-            $(shuf -i 0-9999999999999999999 -n 1000)
-          )
-
-  create-issue-on-failure:
-    name: Create an issue if the daily fuzz surfaced any bugs
-    runs-on: ubuntu-latest
-    needs: fuzz
-    if: ${{ github.repository == 'astral-sh/ruff' && always() && github.event_name == 'schedule' && needs.fuzz.result == 'failure' }}
-    permissions:
-      issues: write
-    steps:
-      - uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          script: |
-            await github.rest.issues.create({
-              owner: "astral-sh",
-              repo: "ruff",
-              title: `Daily parser fuzz failed on ${new Date().toDateString()}`,
-              body: "Run listed here: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
-              labels: ["bug", "parser", "fuzzer"],
-            })

.github/workflows/docs.yaml

@@ -0,0 +1,55 @@
+name: mkdocs
+
+on:
+  workflow_dispatch:
+    inputs:
+      ref:
+        description: "The commit SHA, tag, or branch to publish. Uses the default branch if not specified."
+        default: ""
+        type: string
+  release:
+    types: [published]
+
+jobs:
+  mkdocs:
+    runs-on: ubuntu-latest
+    env:
+      CF_API_TOKEN_EXISTS: ${{ secrets.CF_API_TOKEN != '' }}
+      MKDOCS_INSIDERS_SSH_KEY_EXISTS: ${{ secrets.MKDOCS_INSIDERS_SSH_KEY != '' }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.ref }}
+      - uses: actions/setup-python@v4
+      - name: "Add SSH key"
+        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
+        uses: webfactory/ssh-agent@v0.8.0
+        with:
+          ssh-private-key: ${{ secrets.MKDOCS_INSIDERS_SSH_KEY }}
+      - name: "Install Rust toolchain"
+        run: rustup show
+      - uses: Swatinem/rust-cache@v2
+      - name: "Install Insiders dependencies"
+        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
+        run: pip install -r docs/requirements-insiders.txt
+      - name: "Install dependencies"
+        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS != 'true' }}
+        run: pip install -r docs/requirements.txt
+      - name: "Copy README File"
+        run: |
+          python scripts/transform_readme.py --target mkdocs
+          python scripts/generate_mkdocs.py
+      - name: "Build Insiders docs"
+        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
+        run: mkdocs build --strict -f mkdocs.insiders.yml
+      - name: "Build docs"
+        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS != 'true' }}
+        run: mkdocs build --strict -f mkdocs.generated.yml
+      - name: "Deploy to Cloudflare Pages"
+        if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
+        uses: cloudflare/wrangler-action@v3.3.2
+        with:
+          apiToken: ${{ secrets.CF_API_TOKEN }}
+          accountId: ${{ secrets.CF_ACCOUNT_ID }}
+          # `github.head_ref` is only set during pull requests and for manual runs or tags we use `main` to deploy to production
+          command: pages deploy site --project-name=astral-docs --branch ${{ github.head_ref || 'main' }} --commit-hash ${GITHUB_SHA}

.github/workflows/flake8-to-ruff.yaml

@@ -0,0 +1,247 @@
+name: "[flake8-to-ruff] Release"
+
+on: workflow_dispatch
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  PACKAGE_NAME: flake8-to-ruff
+  CRATE_NAME: flake8_to_ruff
+  PYTHON_VERSION: "3.11"
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  CARGO_TERM_COLOR: always
+  RUSTUP_MAX_RETRIES: 10
+
+jobs:
+  macos-x86_64:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Install Rust toolchain"
+        run: rustup show
+      - name: "Build wheels - x86_64"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: x86_64
+          args: --release --out dist --sdist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - name: "Install built wheel - x86_64"
+        run: |
+          pip install dist/${{ env.CRATE_NAME }}-*.whl --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+  macos-universal:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Install Rust toolchain"
+        run: rustup show
+      - name: "Build wheels - universal2"
+        uses: PyO3/maturin-action@v1
+        with:
+          args: --release --target universal2-apple-darwin --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - name: "Install built wheel - universal2"
+        run: |
+          pip install dist/${{ env.CRATE_NAME }}-*universal2.whl --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  windows:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        target: [x64, x86]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: ${{ matrix.target }}
+      - name: "Install Rust toolchain"
+        run: rustup show
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - name: "Install built wheel"
+        shell: bash
+        run: |
+          python -m pip install dist/${{ env.CRATE_NAME }}-*.whl --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  linux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target: [x86_64, i686]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          manylinux: auto
+          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - name: "Install built wheel"
+        if: matrix.target == 'x86_64'
+        run: |
+          pip install dist/${{ env.CRATE_NAME }}-*.whl --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  linux-cross:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target: [aarch64, armv7, s390x, ppc64le, ppc64]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          manylinux: auto
+          args: --no-default-features --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - uses: uraimo/run-on-arch-action@v2
+        if: matrix.target != 'ppc64'
+        name: Install built wheel
+        with:
+          arch: ${{ matrix.target }}
+          distro: ubuntu20.04
+          githubToken: ${{ github.token }}
+          install: |
+            apt-get update
+            apt-get install -y --no-install-recommends python3 python3-pip
+            pip3 install -U pip
+          run: |
+            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  musllinux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target:
+          - x86_64-unknown-linux-musl
+          - i686-unknown-linux-musl
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          manylinux: musllinux_1_2
+          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - name: "Install built wheel"
+        if: matrix.target == 'x86_64-unknown-linux-musl'
+        uses: addnab/docker-run-action@v3
+        with:
+          image: alpine:latest
+          options: -v ${{ github.workspace }}:/io -w /io
+          run: |
+            apk add py3-pip
+            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links /io/dist/ --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  musllinux-cross:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        platform:
+          - target: aarch64-unknown-linux-musl
+            arch: aarch64
+          - target: armv7-unknown-linux-musleabihf
+            arch: armv7
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.platform.target }}
+          manylinux: musllinux_1_2
+          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - uses: uraimo/run-on-arch-action@v2
+        name: Install built wheel
+        with:
+          arch: ${{ matrix.platform.arch }}
+          distro: alpine_latest
+          githubToken: ${{ github.token }}
+          install: |
+            apk add py3-pip
+          run: |
+            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    needs:
+      - macos-universal
+      - macos-x86_64
+      - windows
+      - linux
+      - linux-cross
+      - musllinux
+      - musllinux-cross
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+          name: wheels
+      - uses: actions/setup-python@v4
+      - name: "Publish to PyPi"
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{ secrets.FLAKE8_TO_RUFF_TOKEN }}
+        run: |
+          pip install --upgrade twine
+          twine upload --skip-existing *

.github/workflows/mypy_primer.yaml

@@ -1,101 +0,0 @@
-name: Run mypy_primer
-
-permissions: {}
-
-on:
-  pull_request:
-    paths:
-      - "crates/ty*/**"
-      - "crates/ruff_db"
-      - "crates/ruff_python_ast"
-      - "crates/ruff_python_parser"
-      - ".github/workflows/mypy_primer.yaml"
-      - ".github/workflows/mypy_primer_comment.yaml"
-      - "Cargo.lock"
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number || github.sha }}
-  cancel-in-progress: true
-
-env:
-  CARGO_INCREMENTAL: 0
-  CARGO_NET_RETRY: 10
-  CARGO_TERM_COLOR: always
-  RUSTUP_MAX_RETRIES: 10
-  RUST_BACKTRACE: 1
-
-jobs:
-  mypy_primer:
-    name: Run mypy_primer
-    runs-on: depot-ubuntu-22.04-32
-    timeout-minutes: 20
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          path: ruff
-          fetch-depth: 0
-          persist-credentials: false
-
-      - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@f0ec1fc3b38f5e7cd731bb6ce540c5af426746bb # v6.1.0
-
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
-        with:
-          workspaces: "ruff"
-
-      - name: Install Rust toolchain
-        run: rustup show
-
-      - name: Run mypy_primer
-        shell: bash
-        run: |
-          cd ruff
-
-          echo "Enabling mypy primer specific configuration overloads (see .github/mypy-primer-ty.toml)"
-          mkdir -p ~/.config/ty
-          cp .github/mypy-primer-ty.toml ~/.config/ty/ty.toml
-
-          PRIMER_SELECTOR="$(paste -s -d'|' crates/ty_python_semantic/resources/primer/good.txt)"
-
-          echo "new commit"
-          git rev-list --format=%s --max-count=1 "$GITHUB_SHA"
-
-          MERGE_BASE="$(git merge-base "$GITHUB_SHA" "origin/$GITHUB_BASE_REF")"
-          git checkout -b base_commit "$MERGE_BASE"
-          echo "base commit"
-          git rev-list --format=%s --max-count=1 base_commit
-
-          cd ..
-
-          echo "Project selector: $PRIMER_SELECTOR"
-          # Allow the exit code to be 0 or 1, only fail for actual mypy_primer crashes/bugs
-          uvx \
-            --from="git+https://github.com/hauntsaninja/mypy_primer@01a7ca325f674433c58e02416a867178d1571128" \
-            mypy_primer \
-            --repo ruff \
-            --type-checker ty \
-            --old base_commit \
-            --new "$GITHUB_SHA" \
-            --project-selector "/($PRIMER_SELECTOR)\$" \
-            --output concise \
-            --debug > mypy_primer.diff || [ $? -eq 1 ]
-
-          # Output diff with ANSI color codes
-          cat mypy_primer.diff
-
-          # Remove ANSI color codes before uploading
-          sed -ie 's/\x1b\[[0-9;]*m//g' mypy_primer.diff
-
-          echo ${{ github.event.number }} > pr-number
-
-      - name: Upload diff
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: mypy_primer_diff
-          path: mypy_primer.diff
-
-      - name: Upload pr-number
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: pr-number
-          path: pr-number

.github/workflows/mypy_primer_comment.yaml

@@ -1,97 +0,0 @@
-name: PR comment (mypy_primer)
-
-on: # zizmor: ignore[dangerous-triggers]
-  workflow_run:
-    workflows: [Run mypy_primer]
-    types: [completed]
-  workflow_dispatch:
-    inputs:
-      workflow_run_id:
-        description: The mypy_primer workflow that triggers the workflow run
-        required: true
-
-jobs:
-  comment:
-    runs-on: ubuntu-24.04
-    permissions:
-      pull-requests: write
-    steps:
-      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
-        name: Download PR number
-        with:
-          name: pr-number
-          run_id: ${{ github.event.workflow_run.id ||  github.event.inputs.workflow_run_id }}
-          if_no_artifact_found: ignore
-          allow_forks: true
-
-      - name: Parse pull request number
-        id: pr-number
-        run: |
-          if [[ -f pr-number ]]
-          then
-            echo "pr-number=$(<pr-number)" >> "$GITHUB_OUTPUT"
-          fi
-
-      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
-        name: "Download mypy_primer results"
-        id: download-mypy_primer_diff
-        if: steps.pr-number.outputs.pr-number
-        with:
-          name: mypy_primer_diff
-          workflow: mypy_primer.yaml
-          pr: ${{ steps.pr-number.outputs.pr-number }}
-          path: pr/mypy_primer_diff
-          workflow_conclusion: completed
-          if_no_artifact_found: ignore
-          allow_forks: true
-
-      - name: Generate comment content
-        id: generate-comment
-        if: steps.download-mypy_primer_diff.outputs.found_artifact == 'true'
-        run: |
-          # Guard against malicious mypy_primer results that symlink to a secret
-          # file on this runner
-          if [[ -L pr/mypy_primer_diff/mypy_primer.diff ]]
-          then
-              echo "Error: mypy_primer.diff cannot be a symlink"
-              exit 1
-          fi
-
-          # Note this identifier is used to find the comment to update on
-          # subsequent runs
-          echo '<!-- generated-comment mypy_primer -->' >> comment.txt
-
-          echo '## `mypy_primer` results' >> comment.txt
-          if [ -s "pr/mypy_primer_diff/mypy_primer.diff" ]; then
-            echo '<details>' >> comment.txt
-            echo '<summary>Changes were detected when running on open source projects</summary>' >> comment.txt
-            echo '' >> comment.txt
-            echo '```diff' >> comment.txt
-            cat pr/mypy_primer_diff/mypy_primer.diff >> comment.txt
-            echo '```' >> comment.txt
-            echo '</details>' >> comment.txt
-          else
-            echo 'No ecosystem changes detected ✅' >> comment.txt
-          fi
-
-          echo 'comment<<EOF' >> "$GITHUB_OUTPUT"
-          cat comment.txt >> "$GITHUB_OUTPUT"
-          echo 'EOF' >> "$GITHUB_OUTPUT"
-
-      - name: Find existing comment
-        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
-        if: steps.generate-comment.outcome == 'success'
-        id: find-comment
-        with:
-          issue-number: ${{ steps.pr-number.outputs.pr-number }}
-          comment-author: "github-actions[bot]"
-          body-includes: "<!-- generated-comment mypy_primer -->"
-
-      - name: Create or update comment
-        if: steps.find-comment.outcome == 'success'
-        uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4
-        with:
-          comment-id: ${{ steps.find-comment.outputs.comment-id }}
-          issue-number: ${{ steps.pr-number.outputs.pr-number }}
-          body-path: comment.txt
-          edit-mode: replace

.github/workflows/notify-dependents.yml

@@ -1,29 +0,0 @@
-# Notify downstream repositories of a new release.
-#
-# Assumed to run as a subworkflow of .github/workflows/release.yml; specifically, as a post-announce
-# job within `cargo-dist`.
-name: "[ruff] Notify dependents"
-
-on:
-  workflow_call:
-    inputs:
-      plan:
-        required: true
-        type: string
-
-jobs:
-  update-dependents:
-    name: Notify dependents
-    runs-on: ubuntu-latest
-    steps:
-      - name: "Update pre-commit mirror"
-        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
-        with:
-          github-token: ${{ secrets.RUFF_PRE_COMMIT_PAT }}
-          script: |
-            github.rest.actions.createWorkflowDispatch({
-              owner: 'astral-sh',
-              repo: 'ruff-pre-commit',
-              workflow_id: 'main.yml',
-              ref: 'main',
-            })

.github/workflows/playground.yaml

@@ -0,0 +1,48 @@
+name: "[Playground] Release"
+
+on:
+  workflow_dispatch:
+  release:
+    types: [published]
+
+env:
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  CARGO_TERM_COLOR: always
+  RUSTUP_MAX_RETRIES: 10
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    env:
+      CF_API_TOKEN_EXISTS: ${{ secrets.CF_API_TOKEN != '' }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: "Install Rust toolchain"
+        run: rustup target add wasm32-unknown-unknown
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 18
+          cache: "npm"
+          cache-dependency-path: playground/package-lock.json
+      - uses: jetli/wasm-pack-action@v0.4.0
+      - uses: jetli/wasm-bindgen-action@v0.2.0
+      - name: "Run wasm-pack"
+        run: wasm-pack build --target web --out-dir ../../playground/src/pkg crates/ruff_wasm
+      - name: "Install Node dependencies"
+        run: npm ci
+        working-directory: playground
+      - name: "Run TypeScript checks"
+        run: npm run check
+        working-directory: playground
+      - name: "Build JavaScript bundle"
+        run: npm run build
+        working-directory: playground
+      - name: "Deploy to Cloudflare Pages"
+        if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
+        uses: cloudflare/wrangler-action@v3.3.2
+        with:
+          apiToken: ${{ secrets.CF_API_TOKEN }}
+          accountId: ${{ secrets.CF_ACCOUNT_ID }}
+          # `github.head_ref` is only set during pull requests and for manual runs or tags we use `main` to deploy to production
+          command: pages deploy playground/dist --project-name=ruff-playground --branch ${{ github.head_ref || 'main' }} --commit-hash ${GITHUB_SHA}

.github/workflows/pr-comment.yaml

@@ -10,29 +10,29 @@ on:
         description: The ecosystem workflow that triggers the workflow run
         required: true
 
+permissions:
+  pull-requests: write
+
 jobs:
   comment:
     runs-on: ubuntu-latest
-    permissions:
-      pull-requests: write
     steps:
-      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+      - uses: dawidd6/action-download-artifact@v2
         name: Download pull request number
         with:
           name: pr-number
           run_id: ${{ github.event.workflow_run.id ||  github.event.inputs.workflow_run_id }}
           if_no_artifact_found: ignore
-          allow_forks: true
 
       - name: Parse pull request number
         id: pr-number
         run: |
           if [[ -f pr-number ]]
           then
-            echo "pr-number=$(<pr-number)" >> "$GITHUB_OUTPUT"
+            echo "pr-number=$(<pr-number)" >> $GITHUB_OUTPUT
           fi
 
-      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+      - uses: dawidd6/action-download-artifact@v2
         name: "Download ecosystem results"
         id: download-ecosystem-result
         if: steps.pr-number.outputs.pr-number
@@ -43,20 +43,11 @@ jobs:
           path: pr/ecosystem
           workflow_conclusion: completed
           if_no_artifact_found: ignore
-          allow_forks: true
 
       - name: Generate comment content
         id: generate-comment
         if: steps.download-ecosystem-result.outputs.found_artifact == 'true'
         run: |
-          # Guard against malicious ecosystem results that symlink to a secret
-          # file on this runner
-          if [[ -L pr/ecosystem/ecosystem-result ]]
-          then
-              echo "Error: ecosystem-result cannot be a symlink"
-              exit 1
-          fi
-
           # Note this identifier is used to find the comment to update on
           # subsequent runs
           echo '<!-- generated-comment ecosystem -->' >> comment.txt
@@ -65,12 +56,12 @@ jobs:
           cat pr/ecosystem/ecosystem-result >> comment.txt
           echo "" >> comment.txt
 
-          echo 'comment<<EOF' >> "$GITHUB_OUTPUT"
-          cat comment.txt >> "$GITHUB_OUTPUT"
-          echo 'EOF' >> "$GITHUB_OUTPUT"
+          echo 'comment<<EOF' >> $GITHUB_OUTPUT
+          cat comment.txt >> $GITHUB_OUTPUT
+          echo 'EOF' >> $GITHUB_OUTPUT
 
       - name: Find existing comment
-        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
+        uses: peter-evans/find-comment@v2
         if: steps.generate-comment.outcome == 'success'
         id: find-comment
         with:
@@ -80,7 +71,7 @@ jobs:
 
       - name: Create or update comment
         if: steps.find-comment.outcome == 'success'
-        uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4
+        uses: peter-evans/create-or-update-comment@v3
         with:
           comment-id: ${{ steps.find-comment.outputs.comment-id }}
           issue-number: ${{ steps.pr-number.outputs.pr-number }}

.github/workflows/publish-docs.yml

@@ -1,144 +0,0 @@
-# Publish the Ruff documentation.
-#
-# Assumed to run as a subworkflow of .github/workflows/release.yml; specifically, as a post-announce
-# job within `cargo-dist`.
-name: mkdocs
-
-on:
-  workflow_dispatch:
-    inputs:
-      ref:
-        description: "The commit SHA, tag, or branch to publish. Uses the default branch if not specified."
-        default: ""
-        type: string
-  workflow_call:
-    inputs:
-      plan:
-        required: true
-        type: string
-
-jobs:
-  mkdocs:
-    runs-on: ubuntu-latest
-    env:
-      MKDOCS_INSIDERS_SSH_KEY_EXISTS: ${{ secrets.MKDOCS_INSIDERS_SSH_KEY != '' }}
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          ref: ${{ inputs.ref }}
-          persist-credentials: true
-
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: 3.12
-
-      - name: "Set docs version"
-        env:
-          version: ${{ (inputs.plan != '' && fromJson(inputs.plan).announcement_tag) || inputs.ref }}
-        run: |
-          # if version is missing, use 'latest'
-          if [ -z "$version" ]; then
-            echo "Using 'latest' as version"
-            version="latest"
-          fi
-
-          # Use version as display name for now
-          display_name="$version"
-
-          echo "version=$version" >> "$GITHUB_ENV"
-          echo "display_name=$display_name" >> "$GITHUB_ENV"
-
-      - name: "Set branch name"
-        run: |
-          timestamp="$(date +%s)"
-
-          # create branch_display_name from display_name by replacing all
-          # characters disallowed in git branch names with hyphens
-          branch_display_name="$(echo "${display_name}" | tr -c '[:alnum:]._' '-' | tr -s '-')"
-
-          echo "branch_name=update-docs-$branch_display_name-$timestamp" >> "$GITHUB_ENV"
-          echo "timestamp=$timestamp" >> "$GITHUB_ENV"
-
-      - name: "Add SSH key"
-        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
-        uses: webfactory/ssh-agent@a6f90b1f127823b31d4d4a8d96047790581349bd # v0.9.1
-        with:
-          ssh-private-key: ${{ secrets.MKDOCS_INSIDERS_SSH_KEY }}
-
-      - name: "Install Rust toolchain"
-        run: rustup show
-
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
-
-      - name: "Install Insiders dependencies"
-        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
-        run: pip install -r docs/requirements-insiders.txt
-
-      - name: "Install dependencies"
-        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS != 'true' }}
-        run: pip install -r docs/requirements.txt
-
-      - name: "Copy README File"
-        run: |
-          python scripts/transform_readme.py --target mkdocs
-          python scripts/generate_mkdocs.py
-
-      - name: "Build Insiders docs"
-        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
-        run: mkdocs build --strict -f mkdocs.insiders.yml
-
-      - name: "Build docs"
-        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS != 'true' }}
-        run: mkdocs build --strict -f mkdocs.public.yml
-
-      - name: "Clone docs repo"
-        run: git clone https://${{ secrets.ASTRAL_DOCS_PAT }}@github.com/astral-sh/docs.git astral-docs
-
-      - name: "Copy docs"
-        run: rm -rf astral-docs/site/ruff && mkdir -p astral-docs/site && cp -r site/ruff astral-docs/site/
-
-      - name: "Commit docs"
-        working-directory: astral-docs
-        run: |
-          git config user.name "astral-docs-bot"
-          git config user.email "176161322+astral-docs-bot@users.noreply.github.com"
-
-          git checkout -b "${branch_name}"
-          git add site/ruff
-          git commit -m "Update ruff documentation for $version"
-
-      - name: "Create Pull Request"
-        working-directory: astral-docs
-        env:
-          GITHUB_TOKEN: ${{ secrets.ASTRAL_DOCS_PAT }}
-        run: |
-          # set the PR title
-          pull_request_title="Update ruff documentation for ${display_name}"
-
-          # Delete any existing pull requests that are open for this version
-          # by checking against pull_request_title because the new PR will
-          # supersede the old one.
-          gh pr list --state open --json title --jq '.[] | select(.title == "$pull_request_title") | .number' | \
-            xargs -I {} gh pr close {}
-
-          # push the branch to GitHub
-          git push origin "${branch_name}"
-
-          # create the PR
-          gh pr create \
-            --base=main \
-            --head="${branch_name}" \
-            --title="${pull_request_title}" \
-            --body="Automated documentation update for ${display_name}" \
-            --label="documentation"
-
-      - name: "Merge Pull Request"
-        if: ${{ inputs.plan != '' && !fromJson(inputs.plan).announcement_tag_is_implicit }}
-        working-directory: astral-docs
-        env:
-          GITHUB_TOKEN: ${{ secrets.ASTRAL_DOCS_PAT }}
-        run: |
-          # auto-merge the PR if the build was triggered by a release. Manual builds should be reviewed by a human.
-          # give the PR a few seconds to be created before trying to auto-merge it
-          sleep 10
-          gh pr merge --squash "${branch_name}"

.github/workflows/publish-playground.yml

@@ -1,54 +0,0 @@
-# Publish the Ruff playground.
-#
-# Assumed to run as a subworkflow of .github/workflows/release.yml; specifically, as a post-announce
-# job within `cargo-dist`.
-name: "[Playground] Release"
-
-on:
-  workflow_dispatch:
-  workflow_call:
-    inputs:
-      plan:
-        required: true
-        type: string
-
-env:
-  CARGO_INCREMENTAL: 0
-  CARGO_NET_RETRY: 10
-  CARGO_TERM_COLOR: always
-  RUSTUP_MAX_RETRIES: 10
-
-jobs:
-  publish:
-    runs-on: ubuntu-latest
-    env:
-      CF_API_TOKEN_EXISTS: ${{ secrets.CF_API_TOKEN != '' }}
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          persist-credentials: false
-      - name: "Install Rust toolchain"
-        run: rustup target add wasm32-unknown-unknown
-      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
-        with:
-          node-version: 22
-          cache: "npm"
-          cache-dependency-path: playground/package-lock.json
-      - uses: jetli/wasm-bindgen-action@20b33e20595891ab1a0ed73145d8a21fc96e7c29 # v0.2.0
-      - name: "Install Node dependencies"
-        run: npm ci
-        working-directory: playground
-      - name: "Run TypeScript checks"
-        run: npm run check
-        working-directory: playground
-      - name: "Build Ruff playground"
-        run: npm run build --workspace ruff-playground
-        working-directory: playground
-      - name: "Deploy to Cloudflare Pages"
-        if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
-        uses: cloudflare/wrangler-action@da0e0dfe58b7a431659754fdf3f186c529afbe65 # v3.14.1
-        with:
-          apiToken: ${{ secrets.CF_API_TOKEN }}
-          accountId: ${{ secrets.CF_ACCOUNT_ID }}
-          # `github.head_ref` is only set during pull requests and for manual runs or tags we use `main` to deploy to production
-          command: pages deploy playground/ruff/dist --project-name=ruff-playground --branch ${{ github.head_ref || 'main' }} --commit-hash ${GITHUB_SHA}

.github/workflows/publish-pypi.yml

@@ -1,32 +0,0 @@
-# Publish a release to PyPI.
-#
-# Assumed to run as a subworkflow of .github/workflows/release.yml; specifically, as a publish job
-# within `cargo-dist`.
-name: "[ruff] Publish to PyPI"
-
-on:
-  workflow_call:
-    inputs:
-      plan:
-        required: true
-        type: string
-
-jobs:
-  pypi-publish:
-    name: Upload to PyPI
-    runs-on: ubuntu-latest
-    environment:
-      name: release
-    permissions:
-      # For PyPI's trusted publishing.
-      id-token: write
-    steps:
-      - name: "Install uv"
-        uses: astral-sh/setup-uv@f0ec1fc3b38f5e7cd731bb6ce540c5af426746bb # v6.1.0
-      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
-        with:
-          pattern: wheels-*
-          path: wheels
-          merge-multiple: true
-      - name: Publish to PyPi
-        run: uv publish -v wheels/*

.github/workflows/publish-ty-playground.yml

@@ -1,58 +0,0 @@
-# Publish the ty playground.
-name: "[ty Playground] Release"
-
-permissions: {}
-
-on:
-  push:
-    branches: [main]
-    paths:
-      - "crates/ty*/**"
-      - "crates/ruff_db/**"
-      - "crates/ruff_python_ast/**"
-      - "crates/ruff_python_parser/**"
-      - "playground/**"
-      - ".github/workflows/publish-ty-playground.yml"
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref_name }}
-  cancel-in-progress: true
-
-env:
-  CARGO_INCREMENTAL: 0
-  CARGO_NET_RETRY: 10
-  CARGO_TERM_COLOR: always
-  RUSTUP_MAX_RETRIES: 10
-
-jobs:
-  publish:
-    runs-on: ubuntu-latest
-    env:
-      CF_API_TOKEN_EXISTS: ${{ secrets.CF_API_TOKEN != '' }}
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          persist-credentials: false
-      - name: "Install Rust toolchain"
-        run: rustup target add wasm32-unknown-unknown
-      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
-        with:
-          node-version: 22
-      - uses: jetli/wasm-bindgen-action@20b33e20595891ab1a0ed73145d8a21fc96e7c29 # v0.2.0
-      - name: "Install Node dependencies"
-        run: npm ci
-        working-directory: playground
-      - name: "Run TypeScript checks"
-        run: npm run check
-        working-directory: playground
-      - name: "Build ty playground"
-        run: npm run build --workspace ty-playground
-        working-directory: playground
-      - name: "Deploy to Cloudflare Pages"
-        if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
-        uses: cloudflare/wrangler-action@da0e0dfe58b7a431659754fdf3f186c529afbe65 # v3.14.1
-        with:
-          apiToken: ${{ secrets.CF_API_TOKEN }}
-          accountId: ${{ secrets.CF_ACCOUNT_ID }}
-          # `github.head_ref` is only set during pull requests and for manual runs or tags we use `main` to deploy to production
-          command: pages deploy playground/ty/dist --project-name=ty-playground --branch ${{ github.head_ref || 'main' }} --commit-hash ${GITHUB_SHA}

.github/workflows/publish-wasm.yml

@@ -1,59 +0,0 @@
-# Build and publish ruff-api for wasm.
-#
-# Assumed to run as a subworkflow of .github/workflows/release.yml; specifically, as a publish
-# job within `cargo-dist`.
-name: "Build and publish wasm"
-
-on:
-  workflow_dispatch:
-  workflow_call:
-    inputs:
-      plan:
-        required: true
-        type: string
-
-env:
-  CARGO_INCREMENTAL: 0
-  CARGO_NET_RETRY: 10
-  CARGO_TERM_COLOR: always
-  RUSTUP_MAX_RETRIES: 10
-
-jobs:
-  ruff_wasm:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      id-token: write
-    strategy:
-      matrix:
-        target: [web, bundler, nodejs]
-      fail-fast: false
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          persist-credentials: false
-      - name: "Install Rust toolchain"
-        run: rustup target add wasm32-unknown-unknown
-      - uses: jetli/wasm-pack-action@0d096b08b4e5a7de8c28de67e11e945404e9eefa # v0.4.0
-        with:
-          version: v0.13.1
-      - uses: jetli/wasm-bindgen-action@20b33e20595891ab1a0ed73145d8a21fc96e7c29 # v0.2.0
-      - name: "Run wasm-pack build"
-        run: wasm-pack build --target ${{ matrix.target }} crates/ruff_wasm
-      - name: "Rename generated package"
-        run: | # Replace the package name w/ jq
-          jq '.name="@astral-sh/ruff-wasm-${{ matrix.target }}"' crates/ruff_wasm/pkg/package.json > /tmp/package.json
-          mv /tmp/package.json crates/ruff_wasm/pkg
-      - run: cp LICENSE crates/ruff_wasm/pkg # wasm-pack does not put the LICENSE file in the pkg
-      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
-        with:
-          node-version: 20
-          registry-url: "https://registry.npmjs.org"
-      - name: "Publish (dry-run)"
-        if: ${{ inputs.plan == '' || fromJson(inputs.plan).announcement_tag_is_implicit }}
-        run: npm publish --dry-run crates/ruff_wasm/pkg
-      - name: "Publish"
-        if: ${{ inputs.plan != '' && !fromJson(inputs.plan).announcement_tag_is_implicit }}
-        run: npm publish --provenance --access public crates/ruff_wasm/pkg
-        env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/release.yaml

@@ -0,0 +1,536 @@
+name: "[ruff] Release"
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "The version to tag, without the leading 'v'. If omitted, will initiate a dry run (no uploads)."
+        type: string
+      sha:
+        description: "The full sha of the commit to be released. If omitted, the latest commit on the default branch will be used."
+        default: ""
+        type: string
+  pull_request:
+    paths:
+      # When we change pyproject.toml, we want to ensure that the maturin builds still work
+      - pyproject.toml
+      # And when we change this workflow itself...
+      - .github/workflows/release.yaml
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  PACKAGE_NAME: ruff
+  PYTHON_VERSION: "3.11"
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  CARGO_TERM_COLOR: always
+  RUSTUP_MAX_RETRIES: 10
+
+jobs:
+  sdist:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.sha }}
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+      - name: "Prep README.md"
+        run: python scripts/transform_readme.py --target pypi
+      - name: "Build sdist"
+        uses: PyO3/maturin-action@v1
+        with:
+          command: sdist
+          args: --out dist
+      - name: "Test sdist"
+        run: |
+          pip install dist/${{ env.PACKAGE_NAME }}-*.tar.gz --force-reinstall
+          ruff --help
+          python -m ruff --help
+      - name: "Upload sdist"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  macos-x86_64:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.sha }}
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Prep README.md"
+        run: python scripts/transform_readme.py --target pypi
+      - name: "Build wheels - x86_64"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: x86_64
+          args: --release --out dist
+      - name: "Test wheel - x86_64"
+        run: |
+          pip install dist/${{ env.PACKAGE_NAME }}-*.whl --force-reinstall
+          ruff --help
+          python -m ruff --help
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+      - name: "Archive binary"
+        run: |
+          ARCHIVE_FILE=ruff-x86_64-apple-darwin.tar.gz
+          tar czvf $ARCHIVE_FILE -C target/x86_64-apple-darwin/release ruff
+          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
+      - name: "Upload binary"
+        uses: actions/upload-artifact@v3
+        with:
+          name: binaries
+          path: |
+            *.tar.gz
+            *.sha256
+
+  macos-universal:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.sha }}
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Prep README.md"
+        run: python scripts/transform_readme.py --target pypi
+      - name: "Build wheels - universal2"
+        uses: PyO3/maturin-action@v1
+        with:
+          args: --release --target universal2-apple-darwin --out dist
+      - name: "Test wheel - universal2"
+        run: |
+          pip install dist/${{ env.PACKAGE_NAME }}-*universal2.whl --force-reinstall
+          ruff --help
+          python -m ruff --help
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+      - name: "Archive binary"
+        run: |
+          ARCHIVE_FILE=ruff-aarch64-apple-darwin.tar.gz
+          tar czvf $ARCHIVE_FILE -C target/aarch64-apple-darwin/release ruff
+          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
+      - name: "Upload binary"
+        uses: actions/upload-artifact@v3
+        with:
+          name: binaries
+          path: |
+            *.tar.gz
+            *.sha256
+
+  windows:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        platform:
+          - target: x86_64-pc-windows-msvc
+            arch: x64
+          - target: i686-pc-windows-msvc
+            arch: x86
+          - target: aarch64-pc-windows-msvc
+            arch: x64
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.sha }}
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: ${{ matrix.platform.arch }}
+      - name: "Prep README.md"
+        run: python scripts/transform_readme.py --target pypi
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.platform.target }}
+          args: --release --out dist
+      - name: "Test wheel"
+        if: ${{ !startsWith(matrix.platform.target, 'aarch64') }}
+        shell: bash
+        run: |
+          python -m pip install dist/${{ env.PACKAGE_NAME }}-*.whl --force-reinstall
+          ruff --help
+          python -m ruff --help
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+      - name: "Archive binary"
+        shell: bash
+        run: |
+          ARCHIVE_FILE=ruff-${{ matrix.platform.target }}.zip
+          7z a $ARCHIVE_FILE ./target/${{ matrix.platform.target }}/release/ruff.exe
+          sha256sum $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
+      - name: "Upload binary"
+        uses: actions/upload-artifact@v3
+        with:
+          name: binaries
+          path: |
+            *.zip
+            *.sha256
+
+  linux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target:
+          - x86_64-unknown-linux-gnu
+          - i686-unknown-linux-gnu
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.sha }}
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Prep README.md"
+        run: python scripts/transform_readme.py --target pypi
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          manylinux: auto
+          args: --release --out dist
+      - name: "Test wheel"
+        if: ${{ startsWith(matrix.target, 'x86_64') }}
+        run: |
+          pip install dist/${{ env.PACKAGE_NAME }}-*.whl --force-reinstall
+          ruff --help
+          python -m ruff --help
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+      - name: "Archive binary"
+        run: |
+          ARCHIVE_FILE=ruff-${{ matrix.target }}.tar.gz
+          tar czvf $ARCHIVE_FILE -C target/${{ matrix.target }}/release ruff
+          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
+      - name: "Upload binary"
+        uses: actions/upload-artifact@v3
+        with:
+          name: binaries
+          path: |
+            *.tar.gz
+            *.sha256
+
+  linux-cross:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        platform:
+          - target: aarch64-unknown-linux-gnu
+            arch: aarch64
+            # see https://github.com/astral-sh/ruff/issues/3791
+            # and https://github.com/gnzlbg/jemallocator/issues/170#issuecomment-1503228963
+            maturin_docker_options: -e JEMALLOC_SYS_WITH_LG_PAGE=16
+          - target: armv7-unknown-linux-gnueabihf
+            arch: armv7
+          - target: s390x-unknown-linux-gnu
+            arch: s390x
+          - target: powerpc64le-unknown-linux-gnu
+            arch: ppc64le
+          - target: powerpc64-unknown-linux-gnu
+            arch: ppc64
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.sha }}
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+      - name: "Prep README.md"
+        run: python scripts/transform_readme.py --target pypi
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.platform.target }}
+          manylinux: auto
+          docker-options: ${{ matrix.platform.maturin_docker_options }}
+          args: --release --out dist
+      - uses: uraimo/run-on-arch-action@v2
+        if: matrix.platform.arch != 'ppc64'
+        name: Test wheel
+        with:
+          arch: ${{ matrix.platform.arch }}
+          distro: ubuntu20.04
+          githubToken: ${{ github.token }}
+          install: |
+            apt-get update
+            apt-get install -y --no-install-recommends python3 python3-pip
+            pip3 install -U pip
+          run: |
+            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
+            ruff --help
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+      - name: "Archive binary"
+        run: |
+          ARCHIVE_FILE=ruff-${{ matrix.platform.target }}.tar.gz
+          tar czvf $ARCHIVE_FILE -C target/${{ matrix.platform.target }}/release ruff
+          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
+      - name: "Upload binary"
+        uses: actions/upload-artifact@v3
+        with:
+          name: binaries
+          path: |
+            *.tar.gz
+            *.sha256
+
+  musllinux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target:
+          - x86_64-unknown-linux-musl
+          - i686-unknown-linux-musl
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.sha }}
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Prep README.md"
+        run: python scripts/transform_readme.py --target pypi
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          manylinux: musllinux_1_2
+          args: --release --out dist
+      - name: "Test wheel"
+        if: matrix.target == 'x86_64-unknown-linux-musl'
+        uses: addnab/docker-run-action@v3
+        with:
+          image: alpine:latest
+          options: -v ${{ github.workspace }}:/io -w /io
+          run: |
+            apk add py3-pip
+            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links /io/dist/ --force-reinstall
+            ruff --help
+            python -m ruff --help
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+      - name: "Archive binary"
+        run: |
+          ARCHIVE_FILE=ruff-${{ matrix.target }}.tar.gz
+          tar czvf $ARCHIVE_FILE -C target/${{ matrix.target }}/release ruff
+          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
+      - name: "Upload binary"
+        uses: actions/upload-artifact@v3
+        with:
+          name: binaries
+          path: |
+            *.tar.gz
+            *.sha256
+
+  musllinux-cross:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        platform:
+          - target: aarch64-unknown-linux-musl
+            arch: aarch64
+            maturin_docker_options: -e JEMALLOC_SYS_WITH_LG_PAGE=16
+          - target: armv7-unknown-linux-musleabihf
+            arch: armv7
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.sha }}
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+      - name: "Prep README.md"
+        run: python scripts/transform_readme.py --target pypi
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.platform.target }}
+          manylinux: musllinux_1_2
+          args: --release --out dist
+          docker-options: ${{ matrix.platform.maturin_docker_options }}
+      - uses: uraimo/run-on-arch-action@v2
+        name: Test wheel
+        with:
+          arch: ${{ matrix.platform.arch }}
+          distro: alpine_latest
+          githubToken: ${{ github.token }}
+          install: |
+            apk add py3-pip
+          run: |
+            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
+            ruff check --help
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+      - name: "Archive binary"
+        run: |
+          ARCHIVE_FILE=ruff-${{ matrix.platform.target }}.tar.gz
+          tar czvf $ARCHIVE_FILE -C target/${{ matrix.platform.target }}/release ruff
+          shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
+      - name: "Upload binary"
+        uses: actions/upload-artifact@v3
+        with:
+          name: binaries
+          path: |
+            *.tar.gz
+            *.sha256
+
+  validate-tag:
+    name: Validate tag
+    runs-on: ubuntu-latest
+    # If you don't set an input tag, it's a dry run (no uploads).
+    if: ${{ inputs.tag }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: main # We checkout the main branch to check for the commit
+      - name: Check main branch
+        if: ${{ inputs.sha }}
+        run: |
+          # Fetch the main branch since a shallow checkout is used by default
+          git fetch origin main --unshallow
+          if ! git branch --contains ${{ inputs.sha }} | grep -E '(^|\s)main$'; then
+            echo "The specified sha is not on the main branch" >&2
+            exit 1
+          fi
+      - name: Check tag consistency
+        run: |
+          # Switch to the commit we want to release
+          git checkout ${{ inputs.sha }}
+          version=$(grep "version = " pyproject.toml | sed -e 's/version = "\(.*\)"/\1/g')
+          if [ "${{ inputs.tag }}" != "${version}" ]; then
+            echo "The input tag does not match the version from pyproject.toml:" >&2
+            echo "${{ inputs.tag }}" >&2
+            echo "${version}" >&2
+            exit 1
+          else
+            echo "Releasing ${version}"
+          fi
+
+  upload-release:
+    name: Upload to PyPI
+    runs-on: ubuntu-latest
+    needs:
+      - macos-universal
+      - macos-x86_64
+      - windows
+      - linux
+      - linux-cross
+      - musllinux
+      - musllinux-cross
+      - validate-tag
+    # If you don't set an input tag, it's a dry run (no uploads).
+    if: ${{ inputs.tag }}
+    environment:
+      name: release
+    permissions:
+      # For pypi trusted publishing
+      id-token: write
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+          name: wheels
+          path: wheels
+      - name: Publish to PyPi
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          skip-existing: true
+          packages-dir: wheels
+          verbose: true
+
+  tag-release:
+    name: Tag release
+    runs-on: ubuntu-latest
+    needs: upload-release
+    # If you don't set an input tag, it's a dry run (no uploads).
+    if: ${{ inputs.tag }}
+    permissions:
+      # For git tag
+      contents: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.sha }}
+      - name: git tag
+        run: |
+          git config user.email "hey@astral.sh"
+          git config user.name "Ruff Release CI"
+          git tag -m "v${{ inputs.tag }}" "v${{ inputs.tag }}"
+          # If there is duplicate tag, this will fail. The publish to pypi action will have been a noop (due to skip
+          # existing), so we make a non-destructive exit here
+          git push --tags
+
+  publish-release:
+    name: Publish to GitHub
+    runs-on: ubuntu-latest
+    needs: tag-release
+    # If you don't set an input tag, it's a dry run (no uploads).
+    if: ${{ inputs.tag }}
+    permissions:
+      # For GitHub release publishing
+      contents: write
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+          name: binaries
+          path: binaries
+      - name: "Publish to GitHub"
+        uses: softprops/action-gh-release@v1
+        with:
+          draft: true
+          files: binaries/*
+          tag_name: v${{ inputs.tag }}
+
+  # After the release has been published, we update downstream repositories
+  # This is separate because if this fails the release is still fine, we just need to do some manual workflow triggers
+  update-dependents:
+    name: Update dependents
+    runs-on: ubuntu-latest
+    needs: publish-release
+    steps:
+      - name: "Update pre-commit mirror"
+        uses: actions/github-script@v6
+        with:
+          github-token: ${{ secrets.RUFF_PRE_COMMIT_PAT }}
+          script: |
+            github.rest.actions.createWorkflowDispatch({
+              owner: 'astral-sh',
+              repo: 'ruff-pre-commit',
+              workflow_id: 'main.yml',
+              ref: 'main',
+            })

.github/workflows/release.yml

@@ -1,306 +0,0 @@
-# This file was autogenerated by dist: https://github.com/astral-sh/cargo-dist
-#
-# Copyright 2022-2024, axodotdev
-# Copyright 2025 Astral Software Inc.
-# SPDX-License-Identifier: MIT or Apache-2.0
-#
-# CI that:
-#
-# * checks for a Git Tag that looks like a release
-# * builds artifacts with dist (archives, installers, hashes)
-# * uploads those artifacts to temporary workflow zip
-# * on success, uploads the artifacts to a GitHub Release
-#
-# Note that the GitHub Release will be created with a generated
-# title/body based on your changelogs.
-
-name: Release
-permissions:
-  "contents": "write"
-
-# This task will run whenever you workflow_dispatch with a tag that looks like a version
-# like "1.0.0", "v0.1.0-prerelease.1", "my-app/0.1.0", "releases/v1.0.0", etc.
-# Various formats will be parsed into a VERSION and an optional PACKAGE_NAME, where
-# PACKAGE_NAME must be the name of a Cargo package in your workspace, and VERSION
-# must be a Cargo-style SemVer Version (must have at least major.minor.patch).
-#
-# If PACKAGE_NAME is specified, then the announcement will be for that
-# package (erroring out if it doesn't have the given version or isn't dist-able).
-#
-# If PACKAGE_NAME isn't specified, then the announcement will be for all
-# (dist-able) packages in the workspace with that version (this mode is
-# intended for workspaces with only one dist-able package, or with all dist-able
-# packages versioned/released in lockstep).
-#
-# If you push multiple tags at once, separate instances of this workflow will
-# spin up, creating an independent announcement for each one. However, GitHub
-# will hard limit this to 3 tags per commit, as it will assume more tags is a
-# mistake.
-#
-# If there's a prerelease-style suffix to the version, then the release(s)
-# will be marked as a prerelease.
-on:
-  pull_request:
-  workflow_dispatch:
-    inputs:
-      tag:
-        description: Release Tag
-        required: true
-        default: dry-run
-        type: string
-
-jobs:
-  # Run 'dist plan' (or host) to determine what tasks we need to do
-  plan:
-    runs-on: "depot-ubuntu-latest-4"
-    outputs:
-      val: ${{ steps.plan.outputs.manifest }}
-      tag: ${{ (inputs.tag != 'dry-run' && inputs.tag) || '' }}
-      tag-flag: ${{ inputs.tag && inputs.tag != 'dry-run' && format('--tag={0}', inputs.tag) || '' }}
-      publishing: ${{ inputs.tag && inputs.tag != 'dry-run' }}
-    env:
-      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-    steps:
-      - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
-        with:
-          persist-credentials: false
-          submodules: recursive
-      - name: Install dist
-        # we specify bash to get pipefail; it guards against the `curl` command
-        # failing. otherwise `sh` won't catch that `curl` returned non-0
-        shell: bash
-        run: "curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/cargo-dist/releases/download/v0.28.5-prerelease.1/cargo-dist-installer.sh | sh"
-      - name: Cache dist
-        uses: actions/upload-artifact@6027e3dd177782cd8ab9af838c04fd81a07f1d47
-        with:
-          name: cargo-dist-cache
-          path: ~/.cargo/bin/dist
-      # sure would be cool if github gave us proper conditionals...
-      # so here's a doubly-nested ternary-via-truthiness to try to provide the best possible
-      # functionality based on whether this is a pull_request, and whether it's from a fork.
-      # (PRs run on the *source* but secrets are usually on the *target* -- that's *good*
-      # but also really annoying to build CI around when it needs secrets to work right.)
-      - id: plan
-        run: |
-          dist ${{ (inputs.tag && inputs.tag != 'dry-run' && format('host --steps=create --tag={0}', inputs.tag)) || 'plan' }} --output-format=json > plan-dist-manifest.json
-          echo "dist ran successfully"
-          cat plan-dist-manifest.json
-          echo "manifest=$(jq -c "." plan-dist-manifest.json)" >> "$GITHUB_OUTPUT"
-      - name: "Upload dist-manifest.json"
-        uses: actions/upload-artifact@6027e3dd177782cd8ab9af838c04fd81a07f1d47
-        with:
-          name: artifacts-plan-dist-manifest
-          path: plan-dist-manifest.json
-
-  custom-build-binaries:
-    needs:
-      - plan
-    if: ${{ needs.plan.outputs.publishing == 'true' || fromJson(needs.plan.outputs.val).ci.github.pr_run_mode == 'upload' || inputs.tag == 'dry-run' }}
-    uses: ./.github/workflows/build-binaries.yml
-    with:
-      plan: ${{ needs.plan.outputs.val }}
-    secrets: inherit
-
-  custom-build-docker:
-    needs:
-      - plan
-    if: ${{ needs.plan.outputs.publishing == 'true' || fromJson(needs.plan.outputs.val).ci.github.pr_run_mode == 'upload' || inputs.tag == 'dry-run' }}
-    uses: ./.github/workflows/build-docker.yml
-    with:
-      plan: ${{ needs.plan.outputs.val }}
-    secrets: inherit
-    permissions:
-      "contents": "read"
-      "packages": "write"
-
-  # Build and package all the platform-agnostic(ish) things
-  build-global-artifacts:
-    needs:
-      - plan
-      - custom-build-binaries
-      - custom-build-docker
-    runs-on: "depot-ubuntu-latest-4"
-    env:
-      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      BUILD_MANIFEST_NAME: target/distrib/global-dist-manifest.json
-    steps:
-      - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
-        with:
-          persist-credentials: false
-          submodules: recursive
-      - name: Install cached dist
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
-        with:
-          name: cargo-dist-cache
-          path: ~/.cargo/bin/
-      - run: chmod +x ~/.cargo/bin/dist
-      # Get all the local artifacts for the global tasks to use (for e.g. checksums)
-      - name: Fetch local artifacts
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
-        with:
-          pattern: artifacts-*
-          path: target/distrib/
-          merge-multiple: true
-      - id: cargo-dist
-        shell: bash
-        run: |
-          dist build ${{ needs.plan.outputs.tag-flag }} --output-format=json "--artifacts=global" > dist-manifest.json
-          echo "dist ran successfully"
-
-          # Parse out what we just built and upload it to scratch storage
-          echo "paths<<EOF" >> "$GITHUB_OUTPUT"
-          jq --raw-output ".upload_files[]" dist-manifest.json >> "$GITHUB_OUTPUT"
-          echo "EOF" >> "$GITHUB_OUTPUT"
-
-          cp dist-manifest.json "$BUILD_MANIFEST_NAME"
-      - name: "Upload artifacts"
-        uses: actions/upload-artifact@6027e3dd177782cd8ab9af838c04fd81a07f1d47
-        with:
-          name: artifacts-build-global
-          path: |
-            ${{ steps.cargo-dist.outputs.paths }}
-            ${{ env.BUILD_MANIFEST_NAME }}
-  # Determines if we should publish/announce
-  host:
-    needs:
-      - plan
-      - custom-build-binaries
-      - custom-build-docker
-      - build-global-artifacts
-    # Only run if we're "publishing", and only if local and global didn't fail (skipped is fine)
-    if: ${{ always() && needs.plan.outputs.publishing == 'true' && (needs.build-global-artifacts.result == 'skipped' || needs.build-global-artifacts.result == 'success') && (needs.custom-build-binaries.result == 'skipped' || needs.custom-build-binaries.result == 'success') && (needs.custom-build-docker.result == 'skipped' || needs.custom-build-docker.result == 'success') }}
-    env:
-      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-    runs-on: "depot-ubuntu-latest-4"
-    outputs:
-      val: ${{ steps.host.outputs.manifest }}
-    steps:
-      - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
-        with:
-          persist-credentials: false
-          submodules: recursive
-      - name: Install cached dist
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
-        with:
-          name: cargo-dist-cache
-          path: ~/.cargo/bin/
-      - run: chmod +x ~/.cargo/bin/dist
-      # Fetch artifacts from scratch-storage
-      - name: Fetch artifacts
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
-        with:
-          pattern: artifacts-*
-          path: target/distrib/
-          merge-multiple: true
-      # This is a harmless no-op for GitHub Releases, hosting for that happens in "announce"
-      - id: host
-        shell: bash
-        run: |
-          dist host ${{ needs.plan.outputs.tag-flag }} --steps=upload --steps=release --output-format=json > dist-manifest.json
-          echo "artifacts uploaded and released successfully"
-          cat dist-manifest.json
-          echo "manifest=$(jq -c "." dist-manifest.json)" >> "$GITHUB_OUTPUT"
-      - name: "Upload dist-manifest.json"
-        uses: actions/upload-artifact@6027e3dd177782cd8ab9af838c04fd81a07f1d47
-        with:
-          # Overwrite the previous copy
-          name: artifacts-dist-manifest
-          path: dist-manifest.json
-
-  custom-publish-pypi:
-    needs:
-      - plan
-      - host
-    if: ${{ !fromJson(needs.plan.outputs.val).announcement_is_prerelease || fromJson(needs.plan.outputs.val).publish_prereleases }}
-    uses: ./.github/workflows/publish-pypi.yml
-    with:
-      plan: ${{ needs.plan.outputs.val }}
-    secrets: inherit
-    # publish jobs get escalated permissions
-    permissions:
-      "id-token": "write"
-      "packages": "write"
-
-  custom-publish-wasm:
-    needs:
-      - plan
-      - host
-    if: ${{ !fromJson(needs.plan.outputs.val).announcement_is_prerelease || fromJson(needs.plan.outputs.val).publish_prereleases }}
-    uses: ./.github/workflows/publish-wasm.yml
-    with:
-      plan: ${{ needs.plan.outputs.val }}
-    secrets: inherit
-    # publish jobs get escalated permissions
-    permissions:
-      "contents": "read"
-      "id-token": "write"
-      "packages": "write"
-
-  # Create a GitHub Release while uploading all files to it
-  announce:
-    needs:
-      - plan
-      - host
-      - custom-publish-pypi
-      - custom-publish-wasm
-    # use "always() && ..." to allow us to wait for all publish jobs while
-    # still allowing individual publish jobs to skip themselves (for prereleases).
-    # "host" however must run to completion, no skipping allowed!
-    if: ${{ always() && needs.host.result == 'success' && (needs.custom-publish-pypi.result == 'skipped' || needs.custom-publish-pypi.result == 'success') && (needs.custom-publish-wasm.result == 'skipped' || needs.custom-publish-wasm.result == 'success') }}
-    runs-on: "depot-ubuntu-latest-4"
-    env:
-      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-    steps:
-      - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
-        with:
-          persist-credentials: false
-          submodules: recursive
-      # Create a GitHub Release while uploading all files to it
-      - name: "Download GitHub Artifacts"
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
-        with:
-          pattern: artifacts-*
-          path: artifacts
-          merge-multiple: true
-      - name: Cleanup
-        run: |
-          # Remove the granular manifests
-          rm -f artifacts/*-dist-manifest.json
-      - name: Create GitHub Release
-        env:
-          PRERELEASE_FLAG: "${{ fromJson(needs.host.outputs.val).announcement_is_prerelease && '--prerelease' || '' }}"
-          ANNOUNCEMENT_TITLE: "${{ fromJson(needs.host.outputs.val).announcement_title }}"
-          ANNOUNCEMENT_BODY: "${{ fromJson(needs.host.outputs.val).announcement_github_body }}"
-          RELEASE_COMMIT: "${{ github.sha }}"
-        run: |
-          # Write and read notes from a file to avoid quoting breaking things
-          echo "$ANNOUNCEMENT_BODY" > $RUNNER_TEMP/notes.txt
-
-          gh release create "${{ needs.plan.outputs.tag }}" --target "$RELEASE_COMMIT" $PRERELEASE_FLAG --title "$ANNOUNCEMENT_TITLE" --notes-file "$RUNNER_TEMP/notes.txt" artifacts/*
-
-  custom-notify-dependents:
-    needs:
-      - plan
-      - announce
-    uses: ./.github/workflows/notify-dependents.yml
-    with:
-      plan: ${{ needs.plan.outputs.val }}
-    secrets: inherit
-
-  custom-publish-docs:
-    needs:
-      - plan
-      - announce
-    uses: ./.github/workflows/publish-docs.yml
-    with:
-      plan: ${{ needs.plan.outputs.val }}
-    secrets: inherit
-
-  custom-publish-playground:
-    needs:
-      - plan
-      - announce
-    uses: ./.github/workflows/publish-playground.yml
-    with:
-      plan: ${{ needs.plan.outputs.val }}
-    secrets: inherit

.github/workflows/sync_typeshed.yaml

@@ -1,83 +0,0 @@
-name: Sync typeshed
-
-on:
-  workflow_dispatch:
-  schedule:
-    # Run on the 1st and the 15th of every month:
-    - cron: "0 0 1,15 * *"
-
-env:
-  FORCE_COLOR: 1
-  GH_TOKEN: ${{ github.token }}
-
-jobs:
-  sync:
-    name: Sync typeshed
-    runs-on: ubuntu-latest
-    timeout-minutes: 20
-    # Don't run the cron job on forks:
-    if: ${{ github.repository == 'astral-sh/ruff' || github.event_name != 'schedule' }}
-    permissions:
-      contents: write
-      pull-requests: write
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        name: Checkout Ruff
-        with:
-          path: ruff
-          persist-credentials: true
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        name: Checkout typeshed
-        with:
-          repository: python/typeshed
-          path: typeshed
-          persist-credentials: false
-      - name: Setup git
-        run: |
-          git config --global user.name typeshedbot
-          git config --global user.email '<>'
-      - name: Sync typeshed
-        id: sync
-        run: |
-          rm -rf ruff/crates/ty_vendored/vendor/typeshed
-          mkdir ruff/crates/ty_vendored/vendor/typeshed
-          cp typeshed/README.md ruff/crates/ty_vendored/vendor/typeshed
-          cp typeshed/LICENSE ruff/crates/ty_vendored/vendor/typeshed
-          cp -r typeshed/stdlib ruff/crates/ty_vendored/vendor/typeshed/stdlib
-          rm -rf ruff/crates/ty_vendored/vendor/typeshed/stdlib/@tests
-          git -C typeshed rev-parse HEAD > ruff/crates/ty_vendored/vendor/typeshed/source_commit.txt
-      - name: Commit the changes
-        id: commit
-        if: ${{ steps.sync.outcome == 'success' }}
-        run: |
-          cd ruff
-          git checkout -b typeshedbot/sync-typeshed
-          git add .
-          git diff --staged --quiet || git commit -m "Sync typeshed. Source commit: https://github.com/python/typeshed/commit/$(git -C ../typeshed rev-parse HEAD)"
-      - name: Create a PR
-        if: ${{ steps.sync.outcome == 'success' && steps.commit.outcome == 'success' }}
-        run: |
-          cd ruff
-          git push --force origin typeshedbot/sync-typeshed
-          gh pr list --repo "$GITHUB_REPOSITORY" --head typeshedbot/sync-typeshed --json id --jq length | grep 1 && exit 0 # exit if there is existing pr
-          gh pr create --title "Sync vendored typeshed stubs" --body "Close and reopen this PR to trigger CI" --label "internal"
-
-  create-issue-on-failure:
-    name: Create an issue if the typeshed sync failed
-    runs-on: ubuntu-latest
-    needs: [sync]
-    if: ${{ github.repository == 'astral-sh/ruff' && always() && github.event_name == 'schedule' && needs.sync.result == 'failure' }}
-    permissions:
-      issues: write
-    steps:
-      - uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          script: |
-            await github.rest.issues.create({
-              owner: "astral-sh",
-              repo: "ruff",
-              title: `Automated typeshed sync failed on ${new Date().toDateString()}`,
-              body: "Run listed here: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
-              labels: ["bug", "ty"],
-            })

.github/zizmor.yml

@@ -1,19 +0,0 @@
-# Configuration for the zizmor static analysis tool, run via pre-commit in CI
-# https://woodruffw.github.io/zizmor/configuration/
-#
-# TODO: can we remove the ignores here so that our workflows are more secure?
-rules:
-  dangerous-triggers:
-    ignore:
-      - pr-comment.yaml
-  cache-poisoning:
-    ignore:
-      - build-docker.yml
-      - publish-playground.yml
-  excessive-permissions:
-    # it's hard to test what the impact of removing these ignores would be
-    # without actually running the release workflow...
-    ignore:
-      - build-docker.yml
-      - publish-playground.yml
-      - publish-docs.yml

.gitignore

@@ -21,18 +21,6 @@ flamegraph.svg
 # `CARGO_TARGET_DIR=target-llvm-lines RUSTFLAGS="-Csymbol-mangling-version=v0" cargo llvm-lines -p ruff --lib`
 /target*
 
-# samply profiles
-profile.json
-
-# tracing-flame traces
-tracing.folded
-tracing-flamechart.svg
-tracing-flamegraph.svg
-
-# insta
-*.rs.pending-snap
-
-
 ###
 # Rust.gitignore
 ###
@@ -104,7 +92,6 @@ coverage.xml
 .hypothesis/
 .pytest_cache/
 cover/
-repos/
 
 # Translations
 *.mo

.ignore

@@ -1 +0,0 @@
-!/.github/

.markdownlint.yaml

@@ -14,22 +14,7 @@ MD041: false
 # MD013/line-length
 MD013: false
 
-# MD014/commands-show-output
-MD014: false
-
 # MD024/no-duplicate-heading
 MD024:
   # Allow when nested under different parents e.g. CHANGELOG.md
-  siblings_only: true
-
-# MD046/code-block-style
-#
-# Ignore this because it conflicts with the code block style used in content
-# tabs of mkdocs-material which is to add a blank line after the content title.
-#
-# Ref: https://github.com/astral-sh/ruff/pull/15011#issuecomment-2544790854
-MD046: false
-
-# Link text should be descriptive
-# Disallows link text like *here* which is annoying.
-MD059: false
+  allow_different_nesting: true

.pre-commit-config.yaml

@@ -1,17 +1,10 @@
-fail_fast: false
+fail_fast: true
 
 exclude: |
   (?x)^(
-    .github/workflows/release.yml|
-    crates/ty_vendored/vendor/.*|
-    crates/ty_project/resources/.*|
-    crates/ty/docs/(configuration|rules|cli).md|
-    crates/ruff_benchmark/resources/.*|
     crates/ruff_linter/resources/.*|
     crates/ruff_linter/src/rules/.*/snapshots/.*|
-    crates/ruff_notebook/resources/.*|
-    crates/ruff_server/resources/.*|
-    crates/ruff/resources/.*|
+    crates/ruff_cli/resources/.*|
     crates/ruff_python_formatter/resources/.*|
     crates/ruff_python_formatter/tests/snapshots/.*|
     crates/ruff_python_resolver/resources/.*|
@@ -19,23 +12,18 @@ exclude: |
   )$
 
 repos:
-  - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v5.0.0
-    hooks:
-      - id: check-merge-conflict
-
   - repo: https://github.com/abravalheri/validate-pyproject
-    rev: v0.24.1
+    rev: v0.15
     hooks:
       - id: validate-pyproject
 
   - repo: https://github.com/executablebooks/mdformat
-    rev: 0.7.22
+    rev: 0.7.17
     hooks:
       - id: mdformat
         additional_dependencies:
-          - mdformat-mkdocs==4.0.0
-          - mdformat-footnote==0.1.1
+          - mdformat-mkdocs
+          - mdformat-admon
         exclude: |
           (?x)^(
             docs/formatter/black\.md
@@ -43,7 +31,7 @@ repos:
           )$
 
   - repo: https://github.com/igorshubovych/markdownlint-cli
-    rev: v0.45.0
+    rev: v0.37.0
     hooks:
       - id: markdownlint-fix
         exclude: |
@@ -52,21 +40,8 @@ repos:
             | docs/\w+\.md
           )$
 
-  - repo: https://github.com/adamchainz/blacken-docs
-    rev: 1.19.1
-    hooks:
-      - id: blacken-docs
-        args: ["--pyi", "--line-length", "130"]
-        files: '^crates/.*/resources/mdtest/.*\.md'
-        exclude: |
-          (?x)^(
-            .*?invalid(_.+)*_syntax\.md
-          )$
-        additional_dependencies:
-          - black==25.1.0
-
   - repo: https://github.com/crate-ci/typos
-    rev: v1.32.0
+    rev: v1.16.22
     hooks:
       - id: typos
 
@@ -80,52 +55,25 @@ repos:
         pass_filenames: false # This makes it a lot faster
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.11.12
+    rev: v0.1.4
     hooks:
       - id: ruff-format
       - id: ruff
         args: [--fix, --exit-non-zero-on-fix]
         types_or: [python, pyi]
         require_serial: true
+        exclude: |
+          (?x)^(
+            crates/ruff_linter/resources/.*|
+            crates/ruff_python_formatter/resources/.*
+          )$
 
   # Prettier
-  - repo: https://github.com/rbubley/mirrors-prettier
-    rev: v3.5.3
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v3.0.3
     hooks:
       - id: prettier
         types: [yaml]
 
-  # zizmor detects security vulnerabilities in GitHub Actions workflows.
-  # Additional configuration for the tool is found in `.github/zizmor.yml`
-  - repo: https://github.com/woodruffw/zizmor-pre-commit
-    rev: v1.9.0
-    hooks:
-      - id: zizmor
-
-  - repo: https://github.com/python-jsonschema/check-jsonschema
-    rev: 0.33.0
-    hooks:
-      - id: check-github-workflows
-
-  # `actionlint` hook, for verifying correct syntax in GitHub Actions workflows.
-  # Some additional configuration for `actionlint` can be found in `.github/actionlint.yaml`.
-  - repo: https://github.com/rhysd/actionlint
-    rev: v1.7.7
-    hooks:
-      - id: actionlint
-        stages:
-          # This hook is disabled by default, since it's quite slow.
-          # To run all hooks *including* this hook, use `uvx pre-commit run -a --hook-stage=manual`.
-          # To run *just* this hook, use `uvx pre-commit run -a actionlint --hook-stage=manual`.
-          - manual
-        args:
-          - "-ignore=SC2129" # ignorable stylistic lint from shellcheck
-          - "-ignore=SC2016" # another shellcheck lint: seems to have false positives?
-        additional_dependencies:
-          # actionlint has a shellcheck integration which extracts shell scripts in `run:` steps from GitHub Actions
-          # and checks these with shellcheck. This is arguably its most useful feature,
-          # but the integration only works if shellcheck is installed
-          - "github.com/wasilibs/go-shellcheck/cmd/shellcheck@v0.10.0"
-
 ci:
   skip: [cargo-fmt, dev-generate-all]

.prettierignore

@@ -1,2 +0,0 @@
-# Auto-generated by `cargo-dist`.
-.github/workflows/release.yml

.vscode/extensions.json

@@ -1,5 +0,0 @@
-{
-    "recommendations": [
-        "rust-lang.rust-analyzer"
-    ]
-}

.vscode/settings.json

@@ -1,6 +0,0 @@
-{
-    "rust-analyzer.check.extraArgs": [
-        "--all-features"
-    ],
-    "rust-analyzer.check.command": "clippy",
-}

BREAKING_CHANGES.md

@@ -1,230 +1,5 @@
 # Breaking Changes
 
-## 0.11.0
-
-This is a follow-up to release 0.10.0. Because of a mistake in the release process, the `requires-python` inference changes were not included in that release. Ruff 0.11.0 now includes this change as well as the stabilization of the preview behavior for `PGH004`.
-
-- **Changes to how the Python version is inferred when a `target-version` is not specified** ([#16319](https://github.com/astral-sh/ruff/pull/16319))
-
-    In previous versions of Ruff, you could specify your Python version with:
-
-    - The `target-version` option in a `ruff.toml` file or the `[tool.ruff]` section of a pyproject.toml file.
-    - The `project.requires-python` field in a `pyproject.toml` file with a `[tool.ruff]` section.
-
-    These options worked well in most cases, and are still recommended for fine control of the Python version. However, because of the way Ruff discovers config files, `pyproject.toml` files without a `[tool.ruff]` section would be ignored, including the `requires-python` setting. Ruff would then use the default Python version (3.9 as of this writing) instead, which is surprising when you've attempted to request another version.
-
-    In v0.10, config discovery has been updated to address this issue:
-
-    - If Ruff finds a `ruff.toml` file without a `target-version`, it will check
-        for a `pyproject.toml` file in the same directory and respect its
-        `requires-python` version, even if it does not contain a `[tool.ruff]`
-        section.
-    - If Ruff finds a user-level configuration, the `requires-python` field of the closest `pyproject.toml` in a parent directory will take precedence.
-    - If there is no config file (`ruff.toml`or `pyproject.toml` with a
-        `[tool.ruff]` section) in the directory of the file being checked, Ruff will
-        search for the closest `pyproject.toml` in the parent directories and use its
-        `requires-python` setting.
-
-## 0.10.0
-
-- **Changes to how the Python version is inferred when a `target-version` is not specified** ([#16319](https://github.com/astral-sh/ruff/pull/16319))
-
-    Because of a mistake in the release process, the `requires-python` inference changes are not included in this release and instead shipped as part of 0.11.0.
-    You can find a description of this change in the 0.11.0 section.
-
-- **Updated `TYPE_CHECKING` behavior** ([#16669](https://github.com/astral-sh/ruff/pull/16669))
-
-    Previously, Ruff only recognized typechecking blocks that tested the `typing.TYPE_CHECKING` symbol. Now, Ruff recognizes any local variable named `TYPE_CHECKING`. This release also removes support for the legacy `if 0:` and `if False:` typechecking checks. Use a local `TYPE_CHECKING` variable instead.
-
-- **More robust noqa parsing** ([#16483](https://github.com/astral-sh/ruff/pull/16483))
-
-    The syntax for both file-level and in-line suppression comments has been unified and made more robust to certain errors. In most cases, this will result in more suppression comments being read by Ruff, but there are a few instances where previously read comments will now log an error to the user instead. Please refer to the documentation on [_Error suppression_](https://docs.astral.sh/ruff/linter/#error-suppression) for the full specification.
-
-- **Avoid unnecessary parentheses around with statements with a single context manager and a trailing comment** ([#14005](https://github.com/astral-sh/ruff/pull/14005))
-
-    This change fixes a bug in the formatter where it introduced unnecessary parentheses around with statements with a single context manager and a trailing comment. This change may result in a change in formatting for some users.
-
-- **Bump alpine default tag to 3.21 for derived Docker images** ([#16456](https://github.com/astral-sh/ruff/pull/16456))
-
-    Alpine 3.21 was released in Dec 2024 and is used in the official Alpine-based Python images. Now the ruff:alpine image will use 3.21 instead of 3.20 and ruff:alpine3.20 will no longer be updated.
-
-- **\[`unsafe-markup-use`\]: `RUF035` has been recoded to `S704`** ([#15957](https://github.com/astral-sh/ruff/pull/15957))
-
-## 0.9.0
-
-Ruff now formats your code according to the 2025 style guide. As a result, your code might now get formatted differently. See the [changelog](./CHANGELOG.md#090) for a detailed list of changes.
-
-## 0.8.0
-
-- **Default to Python 3.9**
-
-    Ruff now defaults to Python 3.9 instead of 3.8 if no explicit Python version is configured using [`ruff.target-version`](https://docs.astral.sh/ruff/settings/#target-version) or [`project.requires-python`](https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#python-requires) ([#13896](https://github.com/astral-sh/ruff/pull/13896))
-
-- **Changed location of `pydoclint` diagnostics**
-
-    [`pydoclint`](https://docs.astral.sh/ruff/rules/#pydoclint-doc) diagnostics now point to the first-line of the problematic docstring. Previously, this was not the case.
-
-    If you've opted into these preview rules but have them suppressed using
-    [`noqa`](https://docs.astral.sh/ruff/linter/#error-suppression) comments in
-    some places, this change may mean that you need to move the `noqa` suppression
-    comments. Most users should be unaffected by this change.
-
-- **Use XDG (i.e. `~/.local/bin`) instead of the Cargo home directory in the standalone installer**
-
-    Previously, Ruff's installer used `$CARGO_HOME` or `~/.cargo/bin` for its target install directory. Now, Ruff will be installed into `$XDG_BIN_HOME`, `$XDG_DATA_HOME/../bin`, or `~/.local/bin` (in that order).
-
-    This change is only relevant to users of the standalone Ruff installer (using the shell or PowerShell script). If you installed Ruff using uv or pip, you should be unaffected.
-
-- **Changes to the line width calculation**
-
-    Ruff now uses a new version of the [unicode-width](https://github.com/unicode-rs/unicode-width) Rust crate to calculate the line width. In very rare cases, this may lead to lines containing Unicode characters being reformatted, or being considered too long when they were not before ([`E501`](https://docs.astral.sh/ruff/rules/line-too-long/)).
-
-## 0.7.0
-
-- The pytest rules `PT001` and `PT023` now default to omitting the decorator parentheses when there are no arguments
-    ([#12838](https://github.com/astral-sh/ruff/pull/12838), [#13292](https://github.com/astral-sh/ruff/pull/13292)).
-    This was a change that we attempted to make in Ruff v0.6.0, but only partially made due to an error on our part.
-    See the [blog post](https://astral.sh/blog/ruff-v0.7.0) for more details.
-- The `useless-try-except` rule (in our `tryceratops` category) has been recoded from `TRY302` to
-    `TRY203` ([#13502](https://github.com/astral-sh/ruff/pull/13502)). This ensures Ruff's code is consistent with
-    the same rule in the [`tryceratops`](https://github.com/guilatrova/tryceratops) linter.
-- The `lint.allow-unused-imports` setting has been removed ([#13677](https://github.com/astral-sh/ruff/pull/13677)). Use
-    [`lint.pyflakes.allow-unused-imports`](https://docs.astral.sh/ruff/settings/#lint_pyflakes_allowed-unused-imports)
-    instead.
-
-## 0.6.0
-
-- Detect imports in `src` layouts by default for `isort` rules ([#12848](https://github.com/astral-sh/ruff/pull/12848))
-
-- The pytest rules `PT001` and `PT023` now default to omitting the decorator parentheses when there are no arguments ([#12838](https://github.com/astral-sh/ruff/pull/12838)).
-
-- Lint and format Jupyter Notebook by default ([#12878](https://github.com/astral-sh/ruff/pull/12878)).
-
-    You can disable specific rules for notebooks using [`per-file-ignores`](https://docs.astral.sh/ruff/settings/#lint_per-file-ignores):
-
-    ```toml
-    [tool.ruff.lint.per-file-ignores]
-    "*.ipynb" = ["E501"] # disable line-too-long in notebooks
-    ```
-
-    If you'd prefer to either only lint or only format Jupyter Notebook files, you can use the
-    section-specific `exclude` option to do so. For example, the following would only lint Jupyter
-    Notebook files and not format them:
-
-    ```toml
-    [tool.ruff.format]
-    exclude = ["*.ipynb"]
-    ```
-
-    And, conversely, the following would only format Jupyter Notebook files and not lint them:
-
-    ```toml
-    [tool.ruff.lint]
-    exclude = ["*.ipynb"]
-    ```
-
-    You can completely disable Jupyter Notebook support by updating the [`extend-exclude`](https://docs.astral.sh/ruff/settings/#extend-exclude) setting:
-
-    ```toml
-    [tool.ruff]
-    extend-exclude = ["*.ipynb"]
-    ```
-
-## 0.5.0
-
-- Follow the XDG specification to discover user-level configurations on macOS (same as on other Unix platforms)
-- Selecting `ALL` now excludes deprecated rules
-- The released archives now include an extra level of nesting, which can be removed with `--strip-components=1` when untarring.
-- The release artifact's file name no longer includes the version tag. This enables users to install via `/latest` URLs on GitHub.
-
-## 0.3.0
-
-### Ruff 2024.2 style
-
-The formatter now formats code according to the Ruff 2024.2 style guide. Read the [changelog](./CHANGELOG.md#030) for a detailed list of stabilized style changes.
-
-### `isort`: Use one blank line after imports in typing stub files ([#9971](https://github.com/astral-sh/ruff/pull/9971))
-
-Previously, Ruff used one or two blank lines (or the number configured by `isort.lines-after-imports`) after imports in typing stub files (`.pyi` files).
-The [typing style guide for stubs](https://typing.readthedocs.io/en/latest/source/stubs.html#style-guide) recommends using at most 1 blank line for grouping.
-As of this release, `isort` now always uses one blank line after imports in stub files, the same as the formatter.
-
-### `build` is no longer excluded by default ([#10093](https://github.com/astral-sh/ruff/pull/10093))
-
-Ruff maintains a list of directories and files that are excluded by default. This list now consists of the following patterns:
-
-- `.bzr`
-- `.direnv`
-- `.eggs`
-- `.git`
-- `.git-rewrite`
-- `.hg`
-- `.ipynb_checkpoints`
-- `.mypy_cache`
-- `.nox`
-- `.pants.d`
-- `.pyenv`
-- `.pytest_cache`
-- `.pytype`
-- `.ruff_cache`
-- `.svn`
-- `.tox`
-- `.venv`
-- `.vscode`
-- `__pypackages__`
-- `_build`
-- `buck-out`
-- `dist`
-- `node_modules`
-- `site-packages`
-- `venv`
-
-Previously, the `build` directory was included in this list. However, the `build` directory tends to be a not-unpopular directory
-name, and excluding it by default caused confusion. Ruff now no longer excludes `build` except if it is excluded by a `.gitignore` file
-or because it is listed in `extend-exclude`.
-
-### `--format` is no longer a valid `rule` or `linter` command option
-
-Previously, `ruff rule` and `ruff linter` accepted the `--format <FORMAT>` option as an alias for `--output-format`. Ruff no longer
-supports this alias. Please use `ruff rule --output-format <FORMAT>` and `ruff linter --output-format <FORMAT>` instead.
-
-## 0.1.9
-
-### `site-packages` is now excluded by default ([#5513](https://github.com/astral-sh/ruff/pull/5513))
-
-Ruff maintains a list of default exclusions, which now consists of the following patterns:
-
-- `.bzr`
-- `.direnv`
-- `.eggs`
-- `.git-rewrite`
-- `.git`
-- `.hg`
-- `.ipynb_checkpoints`
-- `.mypy_cache`
-- `.nox`
-- `.pants.d`
-- `.pyenv`
-- `.pytest_cache`
-- `.pytype`
-- `.ruff_cache`
-- `.svn`
-- `.tox`
-- `.venv`
-- `.vscode`
-- `__pypackages__`
-- `_build`
-- `buck-out`
-- `build`
-- `dist`
-- `node_modules`
-- `site-packages`
-- `venv`
-
-Previously, the `site-packages` directory was not excluded by default. While `site-packages` tends
-to be excluded anyway by virtue of the `.venv` exclusion, this may not be the case when using Ruff
-from VS Code outside a virtual environment.
-
 ## 0.1.0
 
 ### The deprecated `format` setting has been removed
@@ -246,7 +21,7 @@ flag or `unsafe-fixes` configuration option can be used to enable unsafe fixes.
 
 See the [docs](https://docs.astral.sh/ruff/configuration/#fix-safety) for details.
 
-### Remove formatter-conflicting rules from the default rule set ([#7900](https://github.com/astral-sh/ruff/pull/7900))
+### Remove formatter-conflicting rules from the default rule set  ([#7900](https://github.com/astral-sh/ruff/pull/7900))
 
 Previously, Ruff enabled all implemented rules in Pycodestyle (`E`) by default. Ruff now only includes the
 Pycodestyle prefixes `E4`, `E7`, and `E9` to exclude rules that conflict with automatic formatters. Consequently,
@@ -259,8 +34,8 @@ This change only affects those using Ruff under its default rule set. Users that
 
 ### Remove support for emoji identifiers ([#7212](https://github.com/astral-sh/ruff/pull/7212))
 
-Previously, Ruff supported non-standards-compliant emoji identifiers such as `📦 = 1`.
-We decided to remove this non-standard language extension. Ruff now reports syntax errors for invalid emoji identifiers in your code, the same as CPython.
+Previously, Ruff supported the non-standard compliant emoji identifiers e.g. `📦 = 1`.
+We decided to remove this non-standard language extension, and Ruff now reports syntax errors for emoji identifiers in your code, the same as CPython.
 
 ### Improved GitLab fingerprints ([#7203](https://github.com/astral-sh/ruff/pull/7203))
 

CODE_OF_CONDUCT.md

@@ -71,7 +71,8 @@ representative at an online or offline event.
 ## Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported to the community leaders responsible for enforcement at <hey@astral.sh>.
+reported to the community leaders responsible for enforcement at
+<charlie.r.marsh@gmail.com>.
 All complaints will be reviewed and investigated promptly and fairly.
 
 All community leaders are obligated to respect the privacy and security of the

CONTRIBUTING.md

@@ -2,25 +2,54 @@
 
 Welcome! We're happy to have you here. Thank you in advance for your contribution to Ruff.
 
-> [!NOTE]
->
-> This guide is for Ruff. If you're looking to contribute to ty, please see [the ty contributing
-> guide](https://github.com/astral-sh/ruff/blob/main/crates/ty/CONTRIBUTING.md).
+- [The Basics](#the-basics)
+    - [Prerequisites](#prerequisites)
+    - [Development](#development)
+    - [Project Structure](#project-structure)
+    - [Example: Adding a new lint rule](#example-adding-a-new-lint-rule)
+        - [Rule naming convention](#rule-naming-convention)
+        - [Rule testing: fixtures and snapshots](#rule-testing-fixtures-and-snapshots)
+    - [Example: Adding a new configuration option](#example-adding-a-new-configuration-option)
+- [MkDocs](#mkdocs)
+- [Release Process](#release-process)
+    - [Creating a new release](#creating-a-new-release)
+- [Ecosystem CI](#ecosystem-ci)
+- [Benchmarking and Profiling](#benchmarking-and-profiling)
+    - [CPython Benchmark](#cpython-benchmark)
+    - [Microbenchmarks](#microbenchmarks)
+        - [Benchmark-driven Development](#benchmark-driven-development)
+        - [PR Summary](#pr-summary)
+        - [Tips](#tips)
+    - [Profiling Projects](#profiling-projects)
+        - [Linux](#linux)
+        - [Mac](#mac)
+- [`cargo dev`](#cargo-dev)
+- [Subsystems](#subsystems)
+    - [Compilation Pipeline](#compilation-pipeline)
 
 ## The Basics
 
-Ruff welcomes contributions in the form of pull requests.
+Ruff welcomes contributions in the form of Pull Requests.
 
 For small changes (e.g., bug fixes), feel free to submit a PR.
 
 For larger changes (e.g., new lint rules, new functionality, new configuration options), consider
 creating an [**issue**](https://github.com/astral-sh/ruff/issues) outlining your proposed change.
-You can also join us on [Discord](https://discord.com/invite/astral-sh) to discuss your idea with the
+You can also join us on [**Discord**](https://discord.gg/c9MhzV8aU5) to discuss your idea with the
 community. We've labeled [beginner-friendly tasks](https://github.com/astral-sh/ruff/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22)
 in the issue tracker, along with [bugs](https://github.com/astral-sh/ruff/issues?q=is%3Aissue+is%3Aopen+label%3Abug)
 and [improvements](https://github.com/astral-sh/ruff/issues?q=is%3Aissue+is%3Aopen+label%3Aaccepted)
 that are ready for contributions.
 
+If you're looking for a place to start, we recommend implementing a new lint rule (see:
+[_Adding a new lint rule_](#example-adding-a-new-lint-rule), which will allow you to learn from and
+pattern-match against the examples in the existing codebase. Many lint rules are inspired by
+existing Python plugins, which can be used as a reference implementation.
+
+As a concrete example: consider taking on one of the rules from the [`flake8-pyi`](https://github.com/astral-sh/ruff/issues/848)
+plugin, and looking to the originating [Python source](https://github.com/PyCQA/flake8-pyi) for
+guidance.
+
 If you have suggestions on how we might improve the contributing documentation, [let us know](https://github.com/astral-sh/ruff/discussions/5693)!
 
 ### Prerequisites
@@ -34,33 +63,25 @@ You'll also need [Insta](https://insta.rs/docs/) to update snapshot tests:
 cargo install cargo-insta
 ```
 
-You'll need [uv](https://docs.astral.sh/uv/getting-started/installation/) (or `pipx` and `pip`) to
-run Python utility commands.
+and pre-commit to run some validation checks:
+
+```shell
+pipx install pre-commit  # or `pip install pre-commit` if you have a virtualenv
+```
 
 You can optionally install pre-commit hooks to automatically run the validation checks
 when making a commit:
 
 ```shell
-uv tool install pre-commit
 pre-commit install
 ```
 
-We recommend [nextest](https://nexte.st/) to run Ruff's test suite (via `cargo nextest run`),
-though it's not strictly necessary:
-
-```shell
-cargo install cargo-nextest --locked
-```
-
-Throughout this guide, any usages of `cargo test` can be replaced with `cargo nextest run`,
-if you choose to install `nextest`.
-
 ### Development
 
 After cloning the repository, run Ruff locally from the repository root with:
 
 ```shell
-cargo run -p ruff -- check /path/to/file.py --no-cache
+cargo run -p ruff_cli -- check /path/to/file.py --no-cache
 ```
 
 Prior to opening a pull request, ensure that your code has been auto-formatted,
@@ -69,14 +90,12 @@ and that it passes both the lint and test validation checks:
 ```shell
 cargo clippy --workspace --all-targets --all-features -- -D warnings  # Rust linting
 RUFF_UPDATE_SCHEMA=1 cargo test  # Rust testing and updating ruff.schema.json
-uvx pre-commit run --all-files --show-diff-on-failure  # Rust and Python formatting, Markdown and Python linting, etc.
+pre-commit run --all-files --show-diff-on-failure  # Rust and Python formatting, Markdown and Python linting, etc.
 ```
 
-These checks will run on GitHub Actions when you open your pull request, but running them locally
+These checks will run on GitHub Actions when you open your Pull Request, but running them locally
 will save you time and expedite the merge process.
 
-If you're using VS Code, you can also install the recommended [rust-analyzer](https://marketplace.visualstudio.com/items?itemName=rust-lang.rust-analyzer) extension to get these checks while editing.
-
 Note that many code changes also require updating the snapshot tests, which is done interactively
 after running `cargo test` like so:
 
@@ -84,14 +103,7 @@ after running `cargo test` like so:
 cargo insta review
 ```
 
-If your pull request relates to a specific lint rule, include the category and rule code in the
-title, as in the following examples:
-
-- \[`flake8-bugbear`\] Avoid false positive for usage after `continue` (`B031`)
-- \[`flake8-simplify`\] Detect implicit `else` cases in `needless-bool` (`SIM103`)
-- \[`pycodestyle`\] Implement `redundant-backslash` (`E502`)
-
-Your pull request will be reviewed by a maintainer, which may involve a few rounds of iteration
+Your Pull Request will be reviewed by a maintainer, which may involve a few rounds of iteration
 prior to merging.
 
 ### Project Structure
@@ -99,8 +111,8 @@ prior to merging.
 Ruff is structured as a monorepo with a [flat crate structure](https://matklad.github.io/2021/08/22/large-rust-workspaces.html),
 such that all crates are contained in a flat `crates` directory.
 
-The vast majority of the code, including all lint rules, lives in the `ruff_linter` crate (located
-at `crates/ruff_linter`). As a contributor, that's the crate that'll be most relevant to you.
+The vast majority of the code, including all lint rules, lives in the `ruff` crate (located at
+`crates/ruff_linter`). As a contributor, that's the crate that'll be most relevant to you.
 
 At the time of writing, the repository includes the following crates:
 
@@ -108,7 +120,7 @@ At the time of writing, the repository includes the following crates:
     If you're working on a rule, this is the crate for you.
 - `crates/ruff_benchmark`: binary crate for running micro-benchmarks.
 - `crates/ruff_cache`: library crate for caching lint results.
-- `crates/ruff`: binary crate containing Ruff's command-line interface.
+- `crates/ruff_cli`: binary crate containing Ruff's command-line interface.
 - `crates/ruff_dev`: binary crate containing utilities used in the development of Ruff itself (e.g.,
     `cargo dev generate-all`), see the [`cargo dev`](#cargo-dev) section below.
 - `crates/ruff_diagnostics`: library crate for the rule-independent abstractions in the lint
@@ -144,7 +156,7 @@ At a high level, the steps involved in adding a new lint rule are as follows:
 1. Create a file for your rule (e.g., `crates/ruff_linter/src/rules/flake8_bugbear/rules/assert_false.rs`).
 
 1. In that file, define a violation struct (e.g., `pub struct AssertFalse`). You can grep for
-    `#[derive(ViolationMetadata)]` to see examples.
+    `#[violation]` to see examples.
 
 1. In that file, define a function that adds the violation to the diagnostic list as appropriate
     (e.g., `pub(crate) fn assert_false`) based on whatever inputs are required for the rule (e.g.,
@@ -173,14 +185,11 @@ and calling out to lint rule analyzer functions as it goes.
 If you need to inspect the AST, you can run `cargo dev print-ast` with a Python file. Grep
 for the `Diagnostic::new` invocations to understand how other, similar rules are implemented.
 
-Once you're satisfied with your code, add tests for your rule
-(see: [rule testing](#rule-testing-fixtures-and-snapshots)), and regenerate the documentation and
-associated assets (like our JSON Schema) with `cargo dev generate-all`.
+Once you're satisfied with your code, add tests for your rule. See [rule testing](#rule-testing-fixtures-and-snapshots)
+for more details.
 
-Finally, submit a pull request, and include the category, rule name, and rule code in the title, as
-in:
-
-> \[`pycodestyle`\] Implement `redundant-backslash` (`E502`)
+Finally, regenerate the documentation and other generated assets (like our JSON Schema) with:
+`cargo dev generate-all`.
 
 #### Rule naming convention
 
@@ -222,7 +231,7 @@ Once you've completed the code for the rule itself, you can define tests with th
     For example, if you're adding a new rule named `E402`, you would run:
 
     ```shell
-    cargo run -p ruff -- check crates/ruff_linter/resources/test/fixtures/pycodestyle/E402.py --no-cache --preview --select E402
+    cargo run -p ruff_cli -- check crates/ruff_linter/resources/test/fixtures/pycodestyle/E402.py --no-cache --select E402
     ```
 
     **Note:** Only a subset of rules are enabled by default. When testing a new rule, ensure that
@@ -243,7 +252,7 @@ Once you've completed the code for the rule itself, you can define tests with th
 
 Ruff's user-facing settings live in a few different places.
 
-First, the command-line options are defined via the `Args` struct in `crates/ruff/src/args.rs`.
+First, the command-line options are defined via the `Args` struct in `crates/ruff_cli/src/args.rs`.
 
 Second, the `pyproject.toml` options are defined in `crates/ruff_workspace/src/options.rs` (via the
 `Options` struct), `crates/ruff_workspace/src/configuration.rs` (via the `Configuration` struct),
@@ -254,7 +263,7 @@ These represent, respectively: the schema used to parse the `pyproject.toml` fil
 intermediate representation; and the final, internal representation used to power Ruff.
 
 To add a new configuration option, you'll likely want to modify these latter few files (along with
-`args.rs`, if appropriate). If you want to pattern-match against an existing example, grep for
+`arg.rs`, if appropriate). If you want to pattern-match against an existing example, grep for
 `dummy_variable_rgx`, which defines a regular expression to match against acceptable unused
 variables (e.g., `_`).
 
@@ -270,24 +279,30 @@ To preview any changes to the documentation locally:
 
 1. Install the [Rust toolchain](https://www.rust-lang.org/tools/install).
 
+1. Install MkDocs and Material for MkDocs with:
+
+    ```shell
+    pip install -r docs/requirements.txt
+    ```
+
 1. Generate the MkDocs site with:
 
     ```shell
-    uv run --no-project --isolated --with-requirements docs/requirements.txt scripts/generate_mkdocs.py
+    python scripts/generate_mkdocs.py
     ```
 
 1. Run the development server with:
 
     ```shell
     # For contributors.
-    uvx --with-requirements docs/requirements.txt -- mkdocs serve -f mkdocs.public.yml
+    mkdocs serve -f mkdocs.generated.yml
 
     # For members of the Astral org, which has access to MkDocs Insiders via sponsorship.
-    uvx --with-requirements docs/requirements-insiders.txt -- mkdocs serve -f mkdocs.insiders.yml
+    mkdocs serve -f mkdocs.insiders.yml
     ```
 
 The documentation should then be available locally at
-[http://127.0.0.1:8000/ruff/](http://127.0.0.1:8000/ruff/).
+[http://127.0.0.1:8000/docs/](http://127.0.0.1:8000/docs/).
 
 ## Release Process
 
@@ -300,64 +315,37 @@ even patch releases may contain [non-backwards-compatible changes](https://semve
 
 ### Creating a new release
 
-1. Install `uv`: `curl -LsSf https://astral.sh/uv/install.sh | sh`
+We use an experimental in-house tool for managing releases.
 
-1. Run `./scripts/release.sh`; this command will:
-
-    - Generate a temporary virtual environment with `rooster`
+1. Install `rooster`: `pip install git+https://github.com/zanieb/rooster@main`
+1. Run `rooster release`; this command will:
     - Generate a changelog entry in `CHANGELOG.md`
     - Update versions in `pyproject.toml` and `Cargo.toml`
     - Update references to versions in the `README.md` and documentation
-    - Display contributors for the release
-
 1. The changelog should then be editorialized for consistency
-
     - Often labels will be missing from pull requests they will need to be manually organized into the proper section
     - Changes should be edited to be user-facing descriptions, avoiding internal details
-
 1. Highlight any breaking changes in `BREAKING_CHANGES.md`
-
-1. Run `cargo check`. This should update the lock file with new versions.
-
 1. Create a pull request with the changelog and version updates
-
 1. Merge the PR
-
-1. Run the [release workflow](https://github.com/astral-sh/ruff/actions/workflows/release.yml) with:
-
-    - The new version number (without starting `v`)
-
+1. Run the release workflow with the version number (without starting `v`) as input. Make sure
+    main has your merged PR as last commit
 1. The release workflow will do the following:
-
     1. Build all the assets. If this fails (even though we tested in step 4), we haven't tagged or
-        uploaded anything, you can restart after pushing a fix. If you just need to rerun the build,
-        make sure you're [re-running all the failed
-        jobs](https://docs.github.com/en/actions/managing-workflow-runs/re-running-workflows-and-jobs#re-running-failed-jobs-in-a-workflow) and not just a single failed job.
+        uploaded anything, you can restart after pushing a fix.
     1. Upload to PyPI.
     1. Create and push the Git tag (as extracted from `pyproject.toml`). We create the Git tag only
-        after building the wheels and uploading to PyPI, since we can't delete or modify the tag ([#4468](https://github.com/astral-sh/ruff/issues/4468)).
+        after building the wheels and uploading to PyPI, since we can't delete or modify the tag ([#4468](https://github.com/charliermarsh/ruff/issues/4468)).
     1. Attach artifacts to draft GitHub release
     1. Trigger downstream repositories. This can fail non-catastrophically, as we can run any
         downstream jobs manually if needed.
-
-1. Verify the GitHub release:
-
-    1. The Changelog should match the content of `CHANGELOG.md`
-    1. Append the contributors from the `scripts/release.sh` script
-
-1. If needed, [update the schemastore](https://github.com/astral-sh/ruff/blob/main/scripts/update_schemastore.py).
-
-    1. One can determine if an update is needed when
-        `git diff old-version-tag new-version-tag -- ruff.schema.json` returns a non-empty diff.
-    1. Once run successfully, you should follow the link in the output to create a PR.
-
-1. If needed, update the [`ruff-lsp`](https://github.com/astral-sh/ruff-lsp) and
-    [`ruff-vscode`](https://github.com/astral-sh/ruff-vscode) repositories and follow
-    the release instructions in those repositories. `ruff-lsp` should always be updated
-    before `ruff-vscode`.
-
-    This step is generally not required for a patch release, but should always be done
-    for a minor release.
+1. Publish the GitHub release
+    1. Open the draft release in the GitHub release section
+    1. Copy the changelog for the release into the GitHub release
+        - See previous releases for formatting of section headers
+    1. Generate the contributor list with `rooster contributors` and add to the release notes
+1. If needed, [update the schemastore](https://github.com/charliermarsh/ruff/blob/main/scripts/update_schemastore.py)
+1. If needed, update the `ruff-lsp` and `ruff-vscode` repositories.
 
 ## Ecosystem CI
 
@@ -365,34 +353,21 @@ GitHub Actions will run your changes against a number of real-world projects fro
 report on any linter or formatter differences. You can also run those checks locally via:
 
 ```shell
-uvx --from ./python/ruff-ecosystem ruff-ecosystem check ruff "./target/debug/ruff"
-uvx --from ./python/ruff-ecosystem ruff-ecosystem format ruff "./target/debug/ruff"
+pip install -e ./python/ruff-ecosystem
+ruff-ecosystem check ruff "./target/debug/ruff"
+ruff-ecosystem format ruff "./target/debug/ruff"
 ```
 
 See the [ruff-ecosystem package](https://github.com/astral-sh/ruff/tree/main/python/ruff-ecosystem) for more details.
 
-## Upgrading Rust
-
-1. Change the `channel` in `./rust-toolchain.toml` to the new Rust version (`<latest>`)
-1. Change the `rust-version` in the `./Cargo.toml` to `<latest> - 2` (e.g. 1.84 if the latest is 1.86)
-1. Run `cargo clippy --fix --allow-dirty --allow-staged` to fix new clippy warnings
-1. Create and merge the PR
-1. Bump the Rust version in Ruff's conda forge recipe. See [this PR](https://github.com/conda-forge/ruff-feedstock/pull/266) for an example.
-1. Enjoy the new Rust version!
-
 ## Benchmarking and Profiling
 
 We have several ways of benchmarking and profiling Ruff:
 
 - Our main performance benchmark comparing Ruff with other tools on the CPython codebase
-- Microbenchmarks which run the linter or the formatter on individual files. These run on pull requests.
+- Microbenchmarks which the linter or the formatter on individual files. There run on pull requests.
 - Profiling the linter on either the microbenchmarks or entire projects
 
-> **Note**
-> When running benchmarks, ensure that your CPU is otherwise idle (e.g., close any background
-> applications, like web browsers). You may also want to switch your CPU to a "performance"
-> mode, if it exists, especially when benchmarking short-lived processes.
-
 ### CPython Benchmark
 
 First, clone [CPython](https://github.com/python/cpython). It's a large and diverse Python codebase,
@@ -402,18 +377,12 @@ which makes it a good target for benchmarking.
 git clone --branch 3.10 https://github.com/python/cpython.git crates/ruff_linter/resources/test/cpython
 ```
 
-Install `hyperfine`:
-
-```shell
-cargo install hyperfine
-```
-
 To benchmark the release build:
 
 ```shell
-cargo build --release --bin ruff && hyperfine --warmup 10 \
-  "./target/release/ruff check ./crates/ruff_linter/resources/test/cpython/ --no-cache -e" \
-  "./target/release/ruff check ./crates/ruff_linter/resources/test/cpython/ -e"
+cargo build --release && hyperfine --warmup 10 \
+  "./target/release/ruff ./crates/ruff_linter/resources/test/cpython/ --no-cache -e" \
+  "./target/release/ruff ./crates/ruff_linter/resources/test/cpython/ -e"
 
 Benchmark 1: ./target/release/ruff ./crates/ruff_linter/resources/test/cpython/ --no-cache
   Time (mean ± σ):     293.8 ms ±   3.2 ms    [User: 2384.6 ms, System: 90.3 ms]
@@ -432,7 +401,7 @@ To benchmark against the ecosystem's existing tools:
 
 ```shell
 hyperfine --ignore-failure --warmup 5 \
-  "./target/release/ruff check ./crates/ruff_linter/resources/test/cpython/ --no-cache" \
+  "./target/release/ruff ./crates/ruff_linter/resources/test/cpython/ --no-cache" \
   "pyflakes crates/ruff_linter/resources/test/cpython" \
   "autoflake --recursive --expand-star-imports --remove-all-unused-imports --remove-unused-variables --remove-duplicate-keys resources/test/cpython" \
   "pycodestyle crates/ruff_linter/resources/test/cpython" \
@@ -478,10 +447,10 @@ To benchmark a subset of rules, e.g. `LineTooLong` and `DocLineTooLong`:
 
 ```shell
 cargo build --release && hyperfine --warmup 10 \
-  "./target/release/ruff check ./crates/ruff_linter/resources/test/cpython/ --no-cache -e --select W505,E501"
+  "./target/release/ruff ./crates/ruff_linter/resources/test/cpython/ --no-cache -e --select W505,E501"
 ```
 
-You can run `uv venv --project ./scripts/benchmarks`, activate the venv and then run `uv sync --project ./scripts/benchmarks` to create a working environment for the
+You can run `poetry install` from `./scripts/benchmarks` to create a working environment for the
 above. All reported benchmarks were computed using the versions specified by
 `./scripts/benchmarks/pyproject.toml` on Python 3.11.
 
@@ -535,21 +504,19 @@ You can run the benchmarks with
 cargo benchmark
 ```
 
-`cargo benchmark` is an alias for `cargo bench -p ruff_benchmark --bench linter --bench formatter --`
-
 #### Benchmark-driven Development
 
 Ruff uses [Criterion.rs](https://bheisler.github.io/criterion.rs/book/) for benchmarks. You can use
-`--save-baseline=<name>` to store an initial baseline benchmark (e.g., on `main`) and then use
+`--save-baseline=<name>` to store an initial baseline benchmark (e.g. on `main`) and then use
 `--benchmark=<name>` to compare against that benchmark. Criterion will print a message telling you
 if the benchmark improved/regressed compared to that baseline.
 
 ```shell
 # Run once on your "baseline" code
-cargo bench -p ruff_benchmark -- --save-baseline=main
+cargo benchmark --save-baseline=main
 
 # Then iterate with
-cargo bench -p ruff_benchmark -- --baseline=main
+cargo benchmark --baseline=main
 ```
 
 #### PR Summary
@@ -559,10 +526,10 @@ This is useful to illustrate the improvements of a PR.
 
 ```shell
 # On main
-cargo bench -p ruff_benchmark -- --save-baseline=main
+cargo benchmark --save-baseline=main
 
 # After applying your changes
-cargo bench -p ruff_benchmark -- --save-baseline=pr
+cargo benchmark --save-baseline=pr
 
 critcmp main pr
 ```
@@ -575,10 +542,10 @@ cargo install critcmp
 
 #### Tips
 
-- Use `cargo bench -p ruff_benchmark <filter>` to only run specific benchmarks. For example: `cargo bench -p ruff_benchmark lexer`
-    to only run the lexer benchmarks.
-- Use `cargo bench -p ruff_benchmark -- --quiet` for a more cleaned up output (without statistical relevance)
-- Use `cargo bench -p ruff_benchmark -- --quick` to get faster results (more prone to noise)
+- Use `cargo benchmark <filter>` to only run specific benchmarks. For example: `cargo benchmark linter/pydantic`
+    to only run the pydantic tests.
+- Use `cargo benchmark --quiet` for a more cleaned up output (without statistical relevance)
+- Use `cargo benchmark --quick` to get faster results (more prone to noise)
 
 ### Profiling Projects
 
@@ -589,10 +556,10 @@ examples.
 
 #### Linux
 
-Install `perf` and build `ruff_benchmark` with the `profiling` profile and then run it with perf
+Install `perf` and build `ruff_benchmark` with the `release-debug` profile and then run it with perf
 
 ```shell
-cargo bench -p ruff_benchmark --no-run --profile=profiling && perf record --call-graph dwarf -F 9999 cargo bench -p ruff_benchmark --profile=profiling -- --profile-time=1
+cargo bench -p ruff_benchmark --no-run --profile=release-debug && perf record --call-graph dwarf -F 9999 cargo bench -p ruff_benchmark --profile=release-debug -- --profile-time=1
 ```
 
 You can also use the `ruff_dev` launcher to run `ruff check` multiple times on a repository to
@@ -600,8 +567,8 @@ gather enough samples for a good flamegraph (change the 999, the sample rate, an
 of checks, to your liking)
 
 ```shell
-cargo build --bin ruff_dev --profile=profiling
-perf record -g -F 999 target/profiling/ruff_dev repeat --repeat 30 --exit-zero --no-cache path/to/cpython > /dev/null
+cargo build --bin ruff_dev --profile=release-debug
+perf record -g -F 999 target/release-debug/ruff_dev repeat --repeat 30 --exit-zero --no-cache path/to/cpython > /dev/null
 ```
 
 Then convert the recorded profile
@@ -610,7 +577,8 @@ Then convert the recorded profile
 perf script -F +pid > /tmp/test.perf
 ```
 
-You can now view the converted file with [firefox profiler](https://profiler.firefox.com/). To learn more about Firefox profiler, read the [Firefox profiler profiling-guide](https://profiler.firefox.com/docs/#/./guide-perf-profiling).
+You can now view the converted file with [firefox profiler](https://profiler.firefox.com/), with a
+more in-depth guide [here](https://profiler.firefox.com/docs/#/./guide-perf-profiling)
 
 An alternative is to convert the perf data to `flamegraph.svg` using
 [flamegraph](https://github.com/flamegraph-rs/flamegraph) (`cargo install flamegraph`):
@@ -630,7 +598,7 @@ cargo install cargo-instruments
 Then run the profiler with
 
 ```shell
-cargo instruments -t time --bench linter --profile profiling -p ruff_benchmark -- --profile-time=1
+cargo instruments -t time --bench linter --profile release-debug -p ruff_benchmark -- --profile-time=1
 ```
 
 - `-t`: Specifies what to profile. Useful options are `time` to profile the wall time and `alloc`
@@ -644,11 +612,11 @@ Otherwise, follow the instructions from the linux section.
 `cargo dev` is a shortcut for `cargo run --package ruff_dev --bin ruff_dev`. You can run some useful
 utils with it:
 
-- `cargo dev print-ast <file>`: Print the AST of a python file using Ruff's
-    [Python parser](https://github.com/astral-sh/ruff/tree/main/crates/ruff_python_parser).
-    For `if True: pass # comment`, you can see the syntax tree, the byte offsets for start and
-    stop of each node and also how the `:` token, the comment and whitespace are not represented
-    anymore:
+- `cargo dev print-ast <file>`: Print the AST of a python file using the
+    [RustPython parser](https://github.com/astral-sh/RustPython-Parser/tree/main/parser) that is
+    mainly used in Ruff. For `if True: pass # comment`, you can see the syntax tree, the byte offsets
+    for start and stop of each node and also how the `:` token, the comment and whitespace are not
+    represented anymore:
 
 ```text
 [
@@ -691,9 +659,9 @@ utils with it:
 23 Newline 24
 ```
 
-- `cargo dev print-cst <file>`: Print the CST of a Python file using
+- `cargo dev print-cst <file>`: Print the CST of a python file using
     [LibCST](https://github.com/Instagram/LibCST), which is used in addition to the RustPython parser
-    in Ruff. For example, for `if True: pass # comment`, everything, including the whitespace, is represented:
+    in Ruff. E.g. for `if True: pass # comment` everything including the whitespace is represented:
 
 ```text
 Module {
@@ -821,8 +789,8 @@ To understand Ruff's import categorization system, we first need to define two c
     "project root".)
 - "Package root": The top-most directory defining the Python package that includes a given Python
     file. To find the package root for a given Python file, traverse up its parent directories until
-    you reach a parent directory that doesn't contain an `__init__.py` file (and isn't in a subtree
-    marked as a [namespace package](https://docs.astral.sh/ruff/settings/#namespace-packages)); take the directory
+    you reach a parent directory that doesn't contain an `__init__.py` file (and isn't marked as
+    a [namespace package](https://docs.astral.sh/ruff/settings/#namespace-packages)); take the directory
     just before that, i.e., the first directory in the package.
 
 For example, given:
@@ -876,7 +844,7 @@ each configuration file.
 
 The package root is used to determine a file's "module path". Consider, again, `baz.py`. In that
 case, `./my_project/src/foo` was identified as the package root, so the module path for `baz.py`
-would resolve to `foo.bar.baz` — as computed by taking the relative path from the package root
+would resolve to  `foo.bar.baz` — as computed by taking the relative path from the package root
 (inclusive of the root itself). The module path can be thought of as "the path you would use to
 import the module" (e.g., `import foo.bar.baz`).
 
@@ -911,11 +879,15 @@ There are three ways in which an import can be categorized as "first-party":
     package (e.g., `from foo import bar` or `import foo.bar`), they'll be classified as first-party
     automatically. This check is as simple as comparing the first segment of the current file's
     module path to the first segment of the import.
-1. **Source roots**: Ruff supports a [`src`](https://docs.astral.sh/ruff/settings/#src) setting, which
+1. **Source roots**: Ruff supports a `[src](https://docs.astral.sh/ruff/settings/#src)` setting, which
     sets the directories to scan when identifying first-party imports. The algorithm is
     straightforward: given an import, like `import foo`, iterate over the directories enumerated in
     the `src` setting and, for each directory, check for the existence of a subdirectory `foo` or a
     file `foo.py`.
 
-By default, `src` is set to the project root, along with `"src"` subdirectory in the project root.
-This ensures that Ruff supports both flat and "src" layouts out of the box.
+By default, `src` is set to the project root. In the above example, we'd want to set
+`src = ["./src"]` to ensure that we locate `./my_project/src/foo` and thus categorize `import foo`
+as first-party in `baz.py`. In practice, for this limited example, setting `src = ["./src"]` is
+unnecessary, as all imports within `./my_project/src/foo` would be categorized as first-party via
+the same-package heuristic; but if your project contains multiple packages, you'll want to set `src`
+explicitly.

Cargo.toml

@@ -3,9 +3,8 @@ members = ["crates/*"]
 resolver = "2"
 
 [workspace.package]
-# Please update rustfmt.toml when bumping the Rust edition
-edition = "2024"
-rust-version = "1.85"
+edition = "2021"
+rust-version = "1.71"
 homepage = "https://docs.astral.sh/ruff"
 documentation = "https://docs.astral.sh/ruff"
 repository = "https://github.com/astral-sh/ruff"
@@ -13,245 +12,51 @@ authors = ["Charlie Marsh <charlie.r.marsh@gmail.com>"]
 license = "MIT"
 
 [workspace.dependencies]
-ruff = { path = "crates/ruff" }
-ruff_annotate_snippets = { path = "crates/ruff_annotate_snippets" }
-ruff_cache = { path = "crates/ruff_cache" }
-ruff_db = { path = "crates/ruff_db", default-features = false }
-ruff_diagnostics = { path = "crates/ruff_diagnostics" }
-ruff_formatter = { path = "crates/ruff_formatter" }
-ruff_graph = { path = "crates/ruff_graph" }
-ruff_index = { path = "crates/ruff_index" }
-ruff_linter = { path = "crates/ruff_linter" }
-ruff_macros = { path = "crates/ruff_macros" }
-ruff_notebook = { path = "crates/ruff_notebook" }
-ruff_options_metadata = { path = "crates/ruff_options_metadata" }
-ruff_python_ast = { path = "crates/ruff_python_ast" }
-ruff_python_codegen = { path = "crates/ruff_python_codegen" }
-ruff_python_formatter = { path = "crates/ruff_python_formatter" }
-ruff_python_index = { path = "crates/ruff_python_index" }
-ruff_python_literal = { path = "crates/ruff_python_literal" }
-ruff_python_parser = { path = "crates/ruff_python_parser" }
-ruff_python_semantic = { path = "crates/ruff_python_semantic" }
-ruff_python_stdlib = { path = "crates/ruff_python_stdlib" }
-ruff_python_trivia = { path = "crates/ruff_python_trivia" }
-ruff_server = { path = "crates/ruff_server" }
-ruff_source_file = { path = "crates/ruff_source_file" }
-ruff_text_size = { path = "crates/ruff_text_size" }
-ruff_workspace = { path = "crates/ruff_workspace" }
-
-ty = { path = "crates/ty" }
-ty_ide = { path = "crates/ty_ide" }
-ty_project = { path = "crates/ty_project", default-features = false }
-ty_python_semantic = { path = "crates/ty_python_semantic" }
-ty_server = { path = "crates/ty_server" }
-ty_test = { path = "crates/ty_test" }
-ty_vendored = { path = "crates/ty_vendored" }
-
-aho-corasick = { version = "1.1.3" }
-anstream = { version = "0.6.18" }
-anstyle = { version = "1.0.10" }
-anyhow = { version = "1.0.80" }
-assert_fs = { version = "1.1.0" }
-argfile = { version = "0.2.0" }
-bincode = { version = "2.0.0" }
-bitflags = { version = "2.5.0" }
-bstr = { version = "1.9.1" }
-cachedir = { version = "0.3.1" }
-camino = { version = "1.1.7" }
-clap = { version = "4.5.3", features = ["derive"] }
-clap_complete_command = { version = "0.6.0" }
-clearscreen = { version = "4.0.0" }
-codspeed-criterion-compat = { version = "2.6.0", default-features = false }
-colored = { version = "3.0.0" }
-console_error_panic_hook = { version = "0.1.7" }
-console_log = { version = "1.0.0" }
-countme = { version = "3.0.1" }
-compact_str = "0.9.0"
-criterion = { version = "0.6.0", default-features = false }
-crossbeam = { version = "0.8.4" }
-dashmap = { version = "6.0.1" }
-dir-test = { version = "0.4.0" }
-dunce = { version = "1.0.5" }
-drop_bomb = { version = "0.1.5" }
-env_logger = { version = "0.11.0" }
-etcetera = { version = "0.10.0" }
-fern = { version = "0.7.0" }
-filetime = { version = "0.2.23" }
-getrandom = { version = "0.3.1" }
+anyhow = { version = "1.0.69" }
+bitflags = { version = "2.4.1" }
+chrono = { version = "0.4.31", default-features = false, features = ["clock"] }
+clap = { version = "4.4.7", features = ["derive"] }
+colored = { version = "2.0.0" }
+filetime = { version = "0.2.20" }
 glob = { version = "0.3.1" }
-globset = { version = "0.4.14" }
-globwalk = { version = "0.9.1" }
-hashbrown = { version = "0.15.0", default-features = false, features = [
-    "raw-entry",
-    "equivalent",
-    "inline-more",
-] }
-heck = "0.5.0"
-ignore = { version = "0.4.22" }
-imara-diff = { version = "0.1.5" }
-imperative = { version = "1.0.4" }
-indexmap = { version = "2.6.0" }
-indicatif = { version = "0.17.8" }
-indoc = { version = "2.0.4" }
-insta = { version = "1.35.1" }
-insta-cmd = { version = "0.6.0" }
-is-macro = { version = "0.3.5" }
-is-wsl = { version = "0.4.0" }
-itertools = { version = "0.14.0" }
-jiff = { version = "0.2.0" }
-js-sys = { version = "0.3.69" }
-jod-thread = { version = "1.0.0" }
-libc = { version = "0.2.153" }
+globset = { version = "0.4.10" }
+ignore = { version = "0.4.20" }
+insta = { version = "1.34.0", feature = ["filters", "glob"] }
+is-macro = { version = "0.3.0" }
+itertools = { version = "0.11.0" }
 libcst = { version = "1.1.0", default-features = false }
 log = { version = "0.4.17" }
-lsp-server = { version = "0.7.6" }
-lsp-types = { git = "https://github.com/astral-sh/lsp-types.git", rev = "3512a9f", features = [
-    "proposed",
-] }
-matchit = { version = "0.8.1" }
-memchr = { version = "2.7.1" }
-mimalloc = { version = "0.1.39" }
-natord = { version = "1.0.9" }
-notify = { version = "8.0.0" }
-ordermap = { version = "0.5.0" }
+memchr = { version = "2.6.4" }
+once_cell = { version = "1.17.1" }
 path-absolutize = { version = "3.1.1" }
-path-slash = { version = "0.2.1" }
-pathdiff = { version = "0.2.1" }
-pep440_rs = { version = "0.7.1" }
-pretty_assertions = "1.3.0"
-proc-macro2 = { version = "1.0.79" }
-pyproject-toml = { version = "0.13.4" }
-quick-junit = { version = "0.5.0" }
+proc-macro2 = { version = "1.0.69" }
 quote = { version = "1.0.23" }
-rand = { version = "0.9.0" }
-rayon = { version = "1.10.0" }
 regex = { version = "1.10.2" }
-rustc-hash = { version = "2.0.0" }
-rustc-stable-hash = { version = "0.1.2" }
-# When updating salsa, make sure to also update the revision in `fuzz/Cargo.toml`
-salsa = { git = "https://github.com/carljm/salsa.git", rev = "0f6d406f6c309964279baef71588746b8c67b4a3" }
-schemars = { version = "0.8.16" }
-seahash = { version = "4.1.0" }
-serde = { version = "1.0.197", features = ["derive"] }
-serde-wasm-bindgen = { version = "0.6.4" }
-serde_json = { version = "1.0.113" }
-serde_test = { version = "1.0.152" }
-serde_with = { version = "3.6.0", default-features = false, features = [
-    "macros",
-] }
+rustc-hash = { version = "1.1.0" }
+schemars = { version = "0.8.15" }
+serde = { version = "1.0.190", features = ["derive"] }
+serde_json = { version = "1.0.108" }
 shellexpand = { version = "3.0.0" }
-similar = { version = "2.4.0", features = ["inline"] }
-smallvec = { version = "1.13.2" }
-snapbox = { version = "0.6.0", features = [
-    "diff",
-    "term-svg",
-    "cmd",
-    "examples",
-] }
+similar = { version = "2.3.0", features = ["inline"] }
+smallvec = { version = "1.11.1" }
 static_assertions = "1.1.0"
-strum = { version = "0.27.0", features = ["strum_macros"] }
-strum_macros = { version = "0.27.0" }
-syn = { version = "2.0.55" }
-tempfile = { version = "3.9.0" }
-test-case = { version = "3.3.1" }
-thiserror = { version = "2.0.0" }
-tikv-jemallocator = { version = "0.6.0" }
-toml = { version = "0.8.11" }
+strum = { version = "0.25.0", features = ["strum_macros"] }
+strum_macros = { version = "0.25.3" }
+syn = { version = "2.0.39" }
+test-case = { version = "3.2.1" }
+thiserror = { version = "1.0.50" }
+toml = { version = "0.7.8" }
 tracing = { version = "0.1.40" }
-tracing-flame = { version = "0.2.0" }
-tracing-indicatif = { version = "0.3.6" }
-tracing-log = { version = "0.2.0" }
-tracing-subscriber = { version = "0.3.18", default-features = false, features = [
-    "env-filter",
-    "fmt",
-    "ansi",
-    "smallvec"
-] }
-tryfn = { version = "0.2.1" }
-typed-arena = { version = "2.0.2" }
-unic-ucd-category = { version = "0.9" }
+tracing-indicatif = { version = "0.3.4" }
+tracing-subscriber = { version = "0.3.17", features = ["env-filter"] }
 unicode-ident = { version = "1.0.12" }
-unicode-width = { version = "0.2.0" }
-unicode_names2 = { version = "1.2.2" }
-unicode-normalization = { version = "0.1.23" }
-url = { version = "2.5.0" }
-uuid = { version = "1.6.1", features = [
-    "v4",
-    "fast-rng",
-    "macro-diagnostics",
-] }
-walkdir = { version = "2.3.2" }
-wasm-bindgen = { version = "0.2.92" }
-wasm-bindgen-test = { version = "0.3.42" }
-wild = { version = "2" }
-zip = { version = "0.6.6", default-features = false }
-
-[workspace.metadata.cargo-shear]
-ignored = ["getrandom", "ruff_options_metadata", "uuid"]
-
-
-[workspace.lints.rust]
-unsafe_code = "warn"
-unreachable_pub = "warn"
-unexpected_cfgs = { level = "warn", check-cfg = [
-    "cfg(fuzzing)",
-    "cfg(codspeed)",
-] }
-
-[workspace.lints.clippy]
-pedantic = { level = "warn", priority = -2 }
-# Allowed pedantic lints
-char_lit_as_u8 = "allow"
-collapsible_else_if = "allow"
-collapsible_if = "allow"
-implicit_hasher = "allow"
-map_unwrap_or = "allow"
-match_same_arms = "allow"
-missing_errors_doc = "allow"
-missing_panics_doc = "allow"
-module_name_repetitions = "allow"
-must_use_candidate = "allow"
-similar_names = "allow"
-single_match_else = "allow"
-too_many_lines = "allow"
-needless_continue = "allow"       # An explicit continue can be more readable, especially if the alternative is an empty block.
-unnecessary_debug_formatting = "allow"  # too many instances, the display also doesn't quote the path which is often desired in logs where we use them the most often.
-# Without the hashes we run into a `rustfmt` bug in some snapshot tests, see #13250
-needless_raw_string_hashes = "allow"
-# Disallowed restriction lints
-print_stdout = "warn"
-print_stderr = "warn"
-dbg_macro = "warn"
-empty_drop = "warn"
-empty_structs_with_brackets = "warn"
-exit = "warn"
-get_unwrap = "warn"
-rc_buffer = "warn"
-rc_mutex = "warn"
-rest_pat_in_fully_bound_structs = "warn"
-# nursery rules
-redundant_clone = "warn"
-debug_assert_with_mut_call = "warn"
-unused_peekable = "warn"
-
-# Diagnostics are not actionable: Enable once https://github.com/rust-lang/rust-clippy/issues/13774 is resolved.
-large_stack_arrays = "allow"
+unicode_names2 = { version = "1.2.0" }
+unicode-width = { version = "0.1.11" }
+uuid = { version = "1.5.0", features = ["v4", "fast-rng", "macro-diagnostics", "js"] }
+wsl = { version = "0.1.0" }
 
 [profile.release]
-# Note that we set these explicitly, and these values
-# were chosen based on a trade-off between compile times
-# and runtime performance[1].
-#
-# [1]: https://github.com/astral-sh/ruff/pull/9031
-lto = "thin"
-codegen-units = 16
-
-# Some crates don't change as much but benefit more from
-# more expensive optimization passes, so we selectively
-# decrease codegen-units in some cases.
-[profile.release.package.ruff_python_parser]
-codegen-units = 1
-[profile.release.package.ruff_python_ast]
+lto = "fat"
 codegen-units = 1
 
 [profile.dev.package.insta]
@@ -260,20 +65,13 @@ opt-level = 3
 [profile.dev.package.similar]
 opt-level = 3
 
-[profile.dev.package.salsa]
-opt-level = 3
-
 # Reduce complexity of a parser function that would trigger a locals limit in a wasm tool.
 # https://github.com/bytecodealliance/wasm-tools/blob/b5c3d98e40590512a3b12470ef358d5c7b983b15/crates/wasmparser/src/limits.rs#L29
 [profile.dev.package.ruff_python_parser]
 opt-level = 1
 
-# Use the `--profile profiling` flag to show symbols in release mode.
-# e.g. `cargo build --profile profiling`
-[profile.profiling]
+# Use the `--profile release-debug` flag to show symbols in release mode.
+# e.g. `cargo build --profile release-debug`
+[profile.release-debug]
 inherits = "release"
 debug = 1
-
-# The profile that 'cargo dist' will build with.
-[profile.dist]
-inherits = "release"

Dockerfile

@@ -1,38 +0,0 @@
-FROM --platform=$BUILDPLATFORM ubuntu AS build
-ENV HOME="/root"
-WORKDIR $HOME
-
-RUN apt update && apt install -y build-essential curl python3-venv
-
-# Setup zig as cross compiling linker
-RUN python3 -m venv $HOME/.venv
-RUN .venv/bin/pip install cargo-zigbuild
-ENV PATH="$HOME/.venv/bin:$PATH"
-
-# Install rust
-ARG TARGETPLATFORM
-RUN case "$TARGETPLATFORM" in \
-    "linux/arm64") echo "aarch64-unknown-linux-musl" > rust_target.txt ;; \
-    "linux/amd64") echo "x86_64-unknown-linux-musl" > rust_target.txt ;; \
-    *) exit 1 ;; \
-    esac
-# Update rustup whenever we bump the rust version
-COPY rust-toolchain.toml rust-toolchain.toml
-RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --target $(cat rust_target.txt) --profile minimal --default-toolchain none
-ENV PATH="$HOME/.cargo/bin:$PATH"
-# Installs the correct toolchain version from rust-toolchain.toml and then the musl target
-RUN rustup target add $(cat rust_target.txt)
-
-# Build
-COPY crates crates
-COPY Cargo.toml Cargo.toml
-COPY Cargo.lock Cargo.lock
-RUN cargo zigbuild --bin ruff --target $(cat rust_target.txt) --release
-RUN cp target/$(cat rust_target.txt)/release/ruff /ruff
-# TODO: Optimize binary size, with a version that also works when cross compiling
-# RUN strip --strip-all /ruff
-
-FROM scratch
-COPY --from=build /ruff /ruff
-WORKDIR /io
-ENTRYPOINT ["/ruff"]

LICENSE

@@ -1371,28 +1371,3 @@ are:
     OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     SOFTWARE.
   """
-
-- pydoclint, licensed as follows:
-  """
-    MIT License
-
-    Copyright (c) 2023 jsh9
-
-    Permission is hereby granted, free of charge, to any person obtaining a copy
-    of this software and associated documentation files (the "Software"), to deal
-    in the Software without restriction, including without limitation the rights
-    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-    copies of the Software, and to permit persons to whom the Software is
-    furnished to do so, subject to the following conditions:
-
-    The above copyright notice and this permission notice shall be included in all
-    copies or substantial portions of the Software.
-
-    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-    SOFTWARE.
-  """

README.md

@@ -4,12 +4,11 @@
 
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
 [![image](https://img.shields.io/pypi/v/ruff.svg)](https://pypi.python.org/pypi/ruff)
-[![image](https://img.shields.io/pypi/l/ruff.svg)](https://github.com/astral-sh/ruff/blob/main/LICENSE)
+[![image](https://img.shields.io/pypi/l/ruff.svg)](https://pypi.python.org/pypi/ruff)
 [![image](https://img.shields.io/pypi/pyversions/ruff.svg)](https://pypi.python.org/pypi/ruff)
 [![Actions status](https://github.com/astral-sh/ruff/workflows/CI/badge.svg)](https://github.com/astral-sh/ruff/actions)
-[![Discord](https://img.shields.io/badge/Discord-%235865F2.svg?logo=discord&logoColor=white)](https://discord.com/invite/astral-sh)
 
-[**Docs**](https://docs.astral.sh/ruff/) | [**Playground**](https://play.ruff.rs/)
+[**Discord**](https://discord.gg/c9MhzV8aU5) | [**Docs**](https://docs.astral.sh/ruff/) | [**Playground**](https://play.ruff.rs/)
 
 An extremely fast Python linter and code formatter, written in Rust.
 
@@ -28,14 +27,15 @@ An extremely fast Python linter and code formatter, written in Rust.
 - ⚡️ 10-100x faster than existing linters (like Flake8) and formatters (like Black)
 - 🐍 Installable via `pip`
 - 🛠️ `pyproject.toml` support
-- 🤝 Python 3.13 compatibility
-- ⚖️ Drop-in parity with [Flake8](https://docs.astral.sh/ruff/faq/#how-does-ruffs-linter-compare-to-flake8), isort, and [Black](https://docs.astral.sh/ruff/faq/#how-does-ruffs-formatter-compare-to-black)
+- 🤝 Python 3.12 compatibility
+- ⚖️ Drop-in parity with [Flake8](https://docs.astral.sh/ruff/faq/#how-does-ruff-compare-to-flake8), isort, and Black
 - 📦 Built-in caching, to avoid re-analyzing unchanged files
 - 🔧 Fix support, for automatic error correction (e.g., automatically remove unused imports)
-- 📏 Over [800 built-in rules](https://docs.astral.sh/ruff/rules/), with native re-implementations
+- 📏 Over [700 built-in rules](https://docs.astral.sh/ruff/rules/), with native re-implementations
     of popular Flake8 plugins, like flake8-bugbear
-- ⌨️ First-party [editor integrations](https://docs.astral.sh/ruff/editors) for [VS Code](https://github.com/astral-sh/ruff-vscode) and [more](https://docs.astral.sh/ruff/editors/setup)
-- 🌎 Monorepo-friendly, with [hierarchical and cascading configuration](https://docs.astral.sh/ruff/configuration/#config-file-discovery)
+- ⌨️ First-party [editor integrations](https://docs.astral.sh/ruff/integrations/) for
+    [VS Code](https://github.com/astral-sh/ruff-vscode) and [more](https://github.com/astral-sh/ruff-lsp)
+- 🌎 Monorepo-friendly, with [hierarchical and cascading configuration](https://docs.astral.sh/ruff/configuration/#pyprojecttoml-discovery)
 
 Ruff aims to be orders of magnitude faster than alternative tools while integrating more
 functionality behind a single, common interface.
@@ -49,13 +49,12 @@ times faster than any individual tool.
 Ruff is extremely actively developed and used in major open-source projects like:
 
 - [Apache Airflow](https://github.com/apache/airflow)
-- [Apache Superset](https://github.com/apache/superset)
 - [FastAPI](https://github.com/tiangolo/fastapi)
 - [Hugging Face](https://github.com/huggingface/transformers)
 - [Pandas](https://github.com/pandas-dev/pandas)
 - [SciPy](https://github.com/scipy/scipy)
 
-...and [many more](#whos-using-ruff).
+...and many more.
 
 Ruff is backed by [Astral](https://astral.sh). Read the [launch post](https://astral.sh/blog/announcing-astral-the-company-behind-ruff),
 or the original [project announcement](https://notes.crmarsh.com/python-tooling-could-be-much-much-faster).
@@ -109,47 +108,16 @@ For more, see the [documentation](https://docs.astral.sh/ruff/).
 1. [Who's Using Ruff?](#whos-using-ruff)
 1. [License](#license)
 
-## Getting Started<a id="getting-started"></a>
+## Getting Started
 
 For more, see the [documentation](https://docs.astral.sh/ruff/).
 
 ### Installation
 
-Ruff is available as [`ruff`](https://pypi.org/project/ruff/) on PyPI.
-
-Invoke Ruff directly with [`uvx`](https://docs.astral.sh/uv/):
+Ruff is available as [`ruff`](https://pypi.org/project/ruff/) on PyPI:
 
 ```shell
-uvx ruff check   # Lint all files in the current directory.
-uvx ruff format  # Format all files in the current directory.
-```
-
-Or install Ruff with `uv` (recommended), `pip`, or `pipx`:
-
-```shell
-# With uv.
-uv tool install ruff@latest  # Install Ruff globally.
-uv add --dev ruff            # Or add Ruff to your project.
-
-# With pip.
 pip install ruff
-
-# With pipx.
-pipx install ruff
-```
-
-Starting with version `0.5.0`, Ruff can be installed with our standalone installers:
-
-```shell
-# On macOS and Linux.
-curl -LsSf https://astral.sh/ruff/install.sh | sh
-
-# On Windows.
-powershell -c "irm https://astral.sh/ruff/install.ps1 | iex"
-
-# For a specific version.
-curl -LsSf https://astral.sh/ruff/0.11.13/install.sh | sh
-powershell -c "irm https://astral.sh/ruff/0.11.13/install.ps1 | iex"
 ```
 
 You can also install Ruff via [Homebrew](https://formulae.brew.sh/formula/ruff), [Conda](https://anaconda.org/conda-forge/ruff),
@@ -160,7 +128,7 @@ and with [a variety of other package managers](https://docs.astral.sh/ruff/insta
 To run Ruff as a linter, try any of the following:
 
 ```shell
-ruff check                          # Lint all files in the current directory (and any subdirectories).
+ruff check .                        # Lint all files in the current directory (and any subdirectories).
 ruff check path/to/code/            # Lint all files in `/path/to/code` (and any subdirectories).
 ruff check path/to/code/*.py        # Lint all `.py` files in `/path/to/code`.
 ruff check path/to/code/to/file.py  # Lint `file.py`.
@@ -170,7 +138,7 @@ ruff check @arguments.txt           # Lint using an input file, treating its con
 Or, to run Ruff as a formatter:
 
 ```shell
-ruff format                          # Format all files in the current directory (and any subdirectories).
+ruff format .                        # Format all files in the current directory (and any subdirectories).
 ruff format path/to/code/            # Format all files in `/path/to/code` (and any subdirectories).
 ruff format path/to/code/*.py        # Format all `.py` files in `/path/to/code`.
 ruff format path/to/code/to/file.py  # Format `file.py`.
@@ -182,7 +150,7 @@ Ruff can also be used as a [pre-commit](https://pre-commit.com/) hook via [`ruff
 ```yaml
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.11.13
+  rev: v0.1.5
   hooks:
     # Run the linter.
     - id: ruff
@@ -191,10 +159,11 @@ Ruff can also be used as a [pre-commit](https://pre-commit.com/) hook via [`ruff
     - id: ruff-format
 ```
 
-Ruff can also be used as a [VS Code extension](https://github.com/astral-sh/ruff-vscode) or with [various other editors](https://docs.astral.sh/ruff/editors/setup).
+Ruff can also be used as a [VS Code extension](https://github.com/astral-sh/ruff-vscode) or
+alongside any other editor through the [Ruff LSP](https://github.com/astral-sh/ruff-lsp).
 
 Ruff can also be used as a [GitHub Action](https://github.com/features/actions) via
-[`ruff-action`](https://github.com/astral-sh/ruff-action):
+[`ruff-action`](https://github.com/chartboost/ruff-action):
 
 ```yaml
 name: Ruff
@@ -203,19 +172,20 @@ jobs:
   ruff:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/ruff-action@v3
+      - uses: actions/checkout@v3
+      - uses: chartboost/ruff-action@v1
 ```
 
-### Configuration<a id="configuration"></a>
+### Configuration
 
 Ruff can be configured through a `pyproject.toml`, `ruff.toml`, or `.ruff.toml` file (see:
 [_Configuration_](https://docs.astral.sh/ruff/configuration/), or [_Settings_](https://docs.astral.sh/ruff/settings/)
 for a complete list of all configuration options).
 
-If left unspecified, Ruff's default configuration is equivalent to the following `ruff.toml` file:
+If left unspecified, Ruff's default configuration is equivalent to:
 
 ```toml
+[tool.ruff]
 # Exclude a variety of commonly ignored directories.
 exclude = [
     ".bzr",
@@ -224,25 +194,20 @@ exclude = [
     ".git",
     ".git-rewrite",
     ".hg",
-    ".ipynb_checkpoints",
     ".mypy_cache",
     ".nox",
     ".pants.d",
-    ".pyenv",
-    ".pytest_cache",
     ".pytype",
     ".ruff_cache",
     ".svn",
     ".tox",
     ".venv",
-    ".vscode",
     "__pypackages__",
     "_build",
     "buck-out",
     "build",
     "dist",
     "node_modules",
-    "site-packages",
     "venv",
 ]
 
@@ -250,11 +215,11 @@ exclude = [
 line-length = 88
 indent-width = 4
 
-# Assume Python 3.9
-target-version = "py39"
+# Assume Python 3.8
+target-version = "py38"
 
-[lint]
-# Enable Pyflakes (`F`) and a subset of the pycodestyle (`E`) codes by default.
+[tool.ruff.lint]
+# Enable Pyflakes (`F`) and a subset of the pycodestyle (`E`)  codes by default.
 select = ["E4", "E7", "E9", "F"]
 ignore = []
 
@@ -265,7 +230,7 @@ unfixable = []
 # Allow unused variables when underscore-prefixed.
 dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
 
-[format]
+[tool.ruff.format]
 # Like Black, use double quotes for strings.
 quote-style = "double"
 
@@ -279,35 +244,21 @@ skip-magic-trailing-comma = false
 line-ending = "auto"
 ```
 
-Note that, in a `pyproject.toml`, each section header should be prefixed with `tool.ruff`. For
-example, `[lint]` should be replaced with `[tool.ruff.lint]`.
-
-Some configuration options can be provided via dedicated command-line arguments, such as those
-related to rule enablement and disablement, file discovery, and logging level:
+Some configuration options can be provided via the command-line, such as those related to
+rule enablement and disablement, file discovery, and logging level:
 
 ```shell
-ruff check --select F401 --select F403 --quiet
+ruff check path/to/code/ --select F401 --select F403 --quiet
 ```
 
-The remaining configuration options can be provided through a catch-all `--config` argument:
-
-```shell
-ruff check --config "lint.per-file-ignores = {'some_file.py' = ['F841']}"
-```
-
-To opt in to the latest lint rules, formatter style changes, interface updates, and more, enable
-[preview mode](https://docs.astral.sh/ruff/rules/) by setting `preview = true` in your configuration
-file or passing `--preview` on the command line. Preview mode enables a collection of unstable
-features that may change prior to stabilization.
-
 See `ruff help` for more on Ruff's top-level commands, or `ruff help check` and `ruff help format`
 for more on the linting and formatting commands, respectively.
 
-## Rules<a id="rules"></a>
+## Rules
 
 <!-- Begin section: Rules -->
 
-**Ruff supports over 800 lint rules**, many of which are inspired by popular tools like Flake8,
+**Ruff supports over 700 lint rules**, many of which are inspired by popular tools like Flake8,
 isort, pyupgrade, and others. Regardless of the rule's origin, Ruff re-implements every rule in
 Rust as a first-party feature.
 
@@ -363,6 +314,7 @@ quality tools, including:
 - [flake8-super](https://pypi.org/project/flake8-super/)
 - [flake8-tidy-imports](https://pypi.org/project/flake8-tidy-imports/)
 - [flake8-todos](https://pypi.org/project/flake8-todos/)
+- [flake8-trio](https://pypi.org/project/flake8-trio/)
 - [flake8-type-checking](https://pypi.org/project/flake8-type-checking/)
 - [flake8-use-pathlib](https://pypi.org/project/flake8-use-pathlib/)
 - [flynt](https://pypi.org/project/flynt/) ([#2102](https://github.com/astral-sh/ruff/issues/2102))
@@ -379,21 +331,21 @@ quality tools, including:
 
 For a complete enumeration of the supported rules, see [_Rules_](https://docs.astral.sh/ruff/rules/).
 
-## Contributing<a id="contributing"></a>
+## Contributing
 
 Contributions are welcome and highly appreciated. To get started, check out the
 [**contributing guidelines**](https://docs.astral.sh/ruff/contributing/).
 
-You can also join us on [**Discord**](https://discord.com/invite/astral-sh).
+You can also join us on [**Discord**](https://discord.gg/c9MhzV8aU5).
 
-## Support<a id="support"></a>
+## Support
 
 Having trouble? Check out the existing issues on [**GitHub**](https://github.com/astral-sh/ruff/issues),
 or feel free to [**open a new one**](https://github.com/astral-sh/ruff/issues/new).
 
-You can also ask for help on [**Discord**](https://discord.com/invite/astral-sh).
+You can also ask for help on [**Discord**](https://discord.gg/c9MhzV8aU5).
 
-## Acknowledgements<a id="acknowledgements"></a>
+## Acknowledgements
 
 Ruff's linter draws on both the APIs and implementation details of many other
 tools in the Python ecosystem, especially [Flake8](https://github.com/PyCQA/flake8), [Pyflakes](https://github.com/PyCQA/pyflakes),
@@ -417,45 +369,35 @@ Ruff is the beneficiary of a large number of [contributors](https://github.com/a
 
 Ruff is released under the MIT license.
 
-## Who's Using Ruff?<a id="whos-using-ruff"></a>
+## Who's Using Ruff?
 
 Ruff is used by a number of major open-source projects and companies, including:
 
-- [Albumentations](https://github.com/albumentations-team/albumentations)
 - Amazon ([AWS SAM](https://github.com/aws/serverless-application-model))
 - Anthropic ([Python SDK](https://github.com/anthropics/anthropic-sdk-python))
 - [Apache Airflow](https://github.com/apache/airflow)
 - AstraZeneca ([Magnus](https://github.com/AstraZeneca/magnus-core))
-- [Babel](https://github.com/python-babel/babel)
 - Benchling ([Refac](https://github.com/benchling/refac))
+- [Babel](https://github.com/python-babel/babel)
 - [Bokeh](https://github.com/bokeh/bokeh)
-- CrowdCent ([NumerBlox](https://github.com/crowdcent/numerblox)) <!-- typos: ignore -->
 - [Cryptography (PyCA)](https://github.com/pyca/cryptography)
-- CERN ([Indico](https://getindico.io/))
 - [DVC](https://github.com/iterative/dvc)
 - [Dagger](https://github.com/dagger/dagger)
 - [Dagster](https://github.com/dagster-io/dagster)
 - Databricks ([MLflow](https://github.com/mlflow/mlflow))
-- [Dify](https://github.com/langgenius/dify)
 - [FastAPI](https://github.com/tiangolo/fastapi)
-- [Godot](https://github.com/godotengine/godot)
 - [Gradio](https://github.com/gradio-app/gradio)
 - [Great Expectations](https://github.com/great-expectations/great_expectations)
 - [HTTPX](https://github.com/encode/httpx)
-- [Hatch](https://github.com/pypa/hatch)
-- [Home Assistant](https://github.com/home-assistant/core)
 - Hugging Face ([Transformers](https://github.com/huggingface/transformers),
     [Datasets](https://github.com/huggingface/datasets),
     [Diffusers](https://github.com/huggingface/diffusers))
-- IBM ([Qiskit](https://github.com/Qiskit/qiskit))
+- [Hatch](https://github.com/pypa/hatch)
+- [Home Assistant](https://github.com/home-assistant/core)
 - ING Bank ([popmon](https://github.com/ing-bank/popmon), [probatus](https://github.com/ing-bank/probatus))
 - [Ibis](https://github.com/ibis-project/ibis)
-- [ivy](https://github.com/unifyai/ivy)
-- [JAX](https://github.com/jax-ml/jax)
 - [Jupyter](https://github.com/jupyter-server/jupyter_server)
-- [Kraken Tech](https://kraken.tech/)
 - [LangChain](https://github.com/hwchase17/langchain)
-- [Litestar](https://litestar.dev/)
 - [LlamaIndex](https://github.com/jerryjliu/llama_index)
 - Matrix ([Synapse](https://github.com/matrix-org/synapse))
 - [MegaLinter](https://github.com/oxsecurity/megalinter)
@@ -463,18 +405,14 @@ Ruff is used by a number of major open-source projects and companies, including:
 - Microsoft ([Semantic Kernel](https://github.com/microsoft/semantic-kernel),
     [ONNX Runtime](https://github.com/microsoft/onnxruntime),
     [LightGBM](https://github.com/microsoft/LightGBM))
-- Modern Treasury ([Python SDK](https://github.com/Modern-Treasury/modern-treasury-python))
+- Modern Treasury ([Python SDK](https://github.com/Modern-Treasury/modern-treasury-python-sdk))
 - Mozilla ([Firefox](https://github.com/mozilla/gecko-dev))
 - [Mypy](https://github.com/python/mypy)
-- [Nautobot](https://github.com/nautobot/nautobot)
 - Netflix ([Dispatch](https://github.com/Netflix/dispatch))
 - [Neon](https://github.com/neondatabase/neon)
-- [Nokia](https://nokia.com/)
 - [NoneBot](https://github.com/nonebot/nonebot2)
-- [NumPyro](https://github.com/pyro-ppl/numpyro)
 - [ONNX](https://github.com/onnx/onnx)
 - [OpenBB](https://github.com/OpenBB-finance/OpenBBTerminal)
-- [Open Wine Components](https://github.com/Open-Wine-Components/umu-launcher)
 - [PDM](https://github.com/pdm-project/pdm)
 - [PaddlePaddle](https://github.com/PaddlePaddle/Paddle)
 - [Pandas](https://github.com/pandas-dev/pandas)
@@ -484,25 +422,20 @@ Ruff is used by a number of major open-source projects and companies, including:
 - [PostHog](https://github.com/PostHog/posthog)
 - Prefect ([Python SDK](https://github.com/PrefectHQ/prefect), [Marvin](https://github.com/PrefectHQ/marvin))
 - [PyInstaller](https://github.com/pyinstaller/pyinstaller)
-- [PyMC](https://github.com/pymc-devs/pymc/)
-- [PyMC-Marketing](https://github.com/pymc-labs/pymc-marketing)
-- [pytest](https://github.com/pytest-dev/pytest)
 - [PyTorch](https://github.com/pytorch/pytorch)
 - [Pydantic](https://github.com/pydantic/pydantic)
 - [Pylint](https://github.com/PyCQA/pylint)
-- [PyVista](https://github.com/pyvista/pyvista)
+- [PyMC-Marketing](https://github.com/pymc-labs/pymc-marketing)
 - [Reflex](https://github.com/reflex-dev/reflex)
-- [River](https://github.com/online-ml/river)
 - [Rippling](https://rippling.com)
 - [Robyn](https://github.com/sansyrox/robyn)
-- [Saleor](https://github.com/saleor/saleor)
 - Scale AI ([Launch SDK](https://github.com/scaleapi/launch-python-client))
-- [SciPy](https://github.com/scipy/scipy)
 - Snowflake ([SnowCLI](https://github.com/Snowflake-Labs/snowcli))
+- [Saleor](https://github.com/saleor/saleor)
+- [SciPy](https://github.com/scipy/scipy)
 - [Sphinx](https://github.com/sphinx-doc/sphinx)
 - [Stable Baselines3](https://github.com/DLR-RM/stable-baselines3)
-- [Starlette](https://github.com/encode/starlette)
-- [Streamlit](https://github.com/streamlit/streamlit)
+- [Litestar](https://litestar.dev/)
 - [The Algorithms](https://github.com/TheAlgorithms/Python)
 - [Vega-Altair](https://github.com/altair-viz/altair)
 - WordPress ([Openverse](https://github.com/WordPress/openverse))
@@ -518,7 +451,7 @@ Ruff is used by a number of major open-source projects and companies, including:
 
 ### Show Your Support
 
-If you're using Ruff, consider adding the Ruff badge to your project's `README.md`:
+If you're using Ruff, consider adding the Ruff badge to project's `README.md`:
 
 ```md
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
@@ -538,12 +471,12 @@ If you're using Ruff, consider adding the Ruff badge to your project's `README.m
 <a href="https://github.com/astral-sh/ruff"><img src="https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json" alt="Ruff" style="max-width:100%;"></a>
 ```
 
-## License<a id="license"></a>
+## License
 
-This repository is licensed under the [MIT License](https://github.com/astral-sh/ruff/blob/main/LICENSE)
+MIT
 
 <div align="center">
   <a target="_blank" href="https://astral.sh" style="background:none">
-    <img src="https://raw.githubusercontent.com/astral-sh/ruff/main/assets/svg/Astral.svg" alt="Made by Astral">
+    <img src="https://raw.githubusercontent.com/astral-sh/ruff/main/assets/svg/Astral.svg">
   </a>
 </div>

SECURITY.md

@@ -1,15 +0,0 @@
-# Security policy
-
-## Reporting a vulnerability
-
-If you have found a possible vulnerability, please email `security at astral dot sh`.
-
-## Bug bounties
-
-While we sincerely appreciate and encourage reports of suspected security problems, please note that
-Astral does not currently run any bug bounty programs.
-
-## Vulnerability disclosures
-
-Critical vulnerabilities will be disclosed via GitHub's
-[security advisory](https://github.com/astral-sh/ruff/security) system.

_typos.toml

@@ -1,37 +1,11 @@
 [files]
 # https://github.com/crate-ci/typos/issues/868
-extend-exclude = [
-    "crates/ty_vendored/vendor/**/*",
-    "**/resources/**/*",
-    "**/snapshots/**/*",
-    # Completion tests tend to have a lot of incomplete
-    # words naturally. It's annoying to have to make all
-    # of them actually words. So just ignore typos here.
-    "crates/ty_ide/src/completion.rs",
-]
+extend-exclude = ["**/resources/**/*", "**/snapshots/**/*"]
 
 [default.extend-words]
-"arange" = "arange"  # e.g. `numpy.arange`
 hel = "hel"
 whos = "whos"
 spawnve = "spawnve"
 ned = "ned"
-pn = "pn"  # `import panel as pn` is a thing
 poit = "poit"
 BA = "BA" # acronym for "Bad Allowed", used in testing.
-jod = "jod" # e.g., `jod-thread`
-Numer = "Numer" # Library name 'NumerBlox' in "Who's Using Ruff?"
-
-[default]
-extend-ignore-re = [
-    # Line ignore with trailing "spellchecker:disable-line"
-    "(?Rm)^.*#\\s*spellchecker:disable-line$",
-    "LICENSEs",
-    # Various third party dependencies uses `typ` as struct field names (e.g., lsp_types::LogMessageParams)
-    "typ",
-    # TODO: Remove this once the `TYP` redirects are removed from `rule_redirects.rs`
-    "TYP",
-]
-
-[default.extend-identifiers]
-"FrIeNdLy" = "FrIeNdLy"

clippy.toml

@@ -1,26 +1,7 @@
 doc-valid-idents = [
-    "..",
-    "CodeQL",
-    "CPython",
-    "FastAPI",
-    "IPython",
-    "LangChain",
-    "LibCST",
-    "McCabe",
-    "NumPy",
-    "SCREAMING_SNAKE_CASE",
-    "SQLAlchemy",
-    "StackOverflow",
-    "PyCharm",
-    "SNMPv1",
-    "SNMPv2",
-    "SNMPv3",
-    "PyFlakes",
-]
-
-ignore-interior-mutability = [
-    # Interned is read-only. The wrapped `Rc` never gets updated.
-    "ruff_formatter::format_element::Interned",
-    # The expression is read-only.
-    "ruff_python_ast::hashable::HashableExpr",
+  "StackOverflow",
+  "CodeQL",
+  "IPython",
+  "NumPy",
+  "..",
 ]

crates/flake8_to_ruff/Cargo.toml

@@ -0,0 +1,36 @@
+[package]
+name = "flake8-to-ruff"
+version = "0.1.5"
+description = """
+Convert Flake8 configuration files to Ruff configuration files.
+"""
+authors = { workspace = true }
+edition = { workspace = true }
+rust-version = { workspace = true }
+homepage = { workspace = true }
+documentation = { workspace = true }
+repository = { workspace = true }
+license = { workspace = true }
+
+[dependencies]
+ruff_linter = { path = "../ruff_linter", default-features = false }
+ruff_workspace = { path = "../ruff_workspace" }
+
+anyhow = { workspace = true }
+clap = { workspace = true }
+colored = { workspace = true }
+configparser = { version = "3.0.2" }
+itertools = { workspace = true }
+log = { workspace = true }
+once_cell = { workspace = true }
+pep440_rs = { version = "0.3.12", features = ["serde"] }
+regex = { workspace = true }
+rustc-hash = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
+strum = { workspace = true }
+strum_macros = { workspace = true }
+toml = { workspace = true }
+
+[dev-dependencies]
+pretty_assertions = "1.3.0"

crates/flake8_to_ruff/README.md

@@ -0,0 +1,99 @@
+# flake8-to-ruff
+
+Convert existing Flake8 configuration files (`setup.cfg`, `tox.ini`, or `.flake8`) for use with
+[Ruff](https://github.com/astral-sh/ruff).
+
+Generates a Ruff-compatible `pyproject.toml` section.
+
+## Installation and Usage
+
+### Installation
+
+Available as [`flake8-to-ruff`](https://pypi.org/project/flake8-to-ruff/) on PyPI:
+
+```shell
+pip install flake8-to-ruff
+```
+
+### Usage
+
+To run `flake8-to-ruff`:
+
+```shell
+flake8-to-ruff path/to/setup.cfg
+flake8-to-ruff path/to/tox.ini
+flake8-to-ruff path/to/.flake8
+```
+
+`flake8-to-ruff` will print the relevant `pyproject.toml` sections to standard output, like so:
+
+```toml
+[tool.ruff]
+exclude = [
+    '.svn',
+    'CVS',
+    '.bzr',
+    '.hg',
+    '.git',
+    '__pycache__',
+    '.tox',
+    '.idea',
+    '.mypy_cache',
+    '.venv',
+    'node_modules',
+    '_state_machine.py',
+    'test_fstring.py',
+    'bad_coding2.py',
+    'badsyntax_*.py',
+]
+select = [
+    'A',
+    'E',
+    'F',
+    'Q',
+]
+ignore = []
+
+[tool.ruff.flake8-quotes]
+inline-quotes = 'single'
+
+[tool.ruff.pep8-naming]
+ignore-names = [
+    'foo',
+    'bar',
+]
+```
+
+### Plugins
+
+`flake8-to-ruff` will attempt to infer any activated plugins based on the settings provided in your
+configuration file.
+
+For example, if your `.flake8` file includes a `docstring-convention` property, `flake8-to-ruff`
+will enable the appropriate [`flake8-docstrings`](https://pypi.org/project/flake8-docstrings/)
+checks.
+
+Alternatively, you can manually specify plugins on the command-line:
+
+```shell
+flake8-to-ruff path/to/.flake8 --plugin flake8-builtins --plugin flake8-quotes
+```
+
+## Limitations
+
+1. Ruff only supports a subset of the Flake configuration options. `flake8-to-ruff` will warn on and
+    ignore unsupported options in the `.flake8` file (or equivalent). (Similarly, Ruff has a few
+    configuration options that don't exist in Flake8.)
+1. Ruff will omit any rule codes that are unimplemented or unsupported by Ruff, including rule
+    codes from unsupported plugins. (See the
+    [documentation](https://docs.astral.sh/ruff/faq/#how-does-ruff-compare-to-flake8) for the complete
+    list of supported plugins.)
+
+## License
+
+MIT
+
+## Contributing
+
+Contributions are welcome and hugely appreciated. To get started, check out the
+[contributing guidelines](https://github.com/astral-sh/ruff/blob/main/CONTRIBUTING.md).

crates/flake8_to_ruff/examples/cryptography/pyproject.toml

@@ -0,0 +1,65 @@
+[build-system]
+requires = [
+    # The minimum setuptools version is specific to the PEP 517 backend,
+    # and may be stricter than the version required in `setup.cfg`
+    "setuptools>=40.6.0,!=60.9.0",
+    "wheel",
+    # Must be kept in sync with the `install_requirements` in `setup.cfg`
+    "cffi>=1.12; platform_python_implementation != 'PyPy'",
+    "setuptools-rust>=0.11.4",
+]
+build-backend = "setuptools.build_meta"
+
+[tool.black]
+line-length = 79
+target-version = ["py36"]
+
+[tool.pytest.ini_options]
+addopts = "-r s --capture=no --strict-markers --benchmark-disable"
+markers = [
+    "skip_fips: this test is not executed in FIPS mode",
+    "supported: parametrized test requiring only_if and skip_message",
+]
+
+[tool.mypy]
+show_error_codes = true
+check_untyped_defs = true
+no_implicit_reexport = true
+warn_redundant_casts = true
+warn_unused_ignores = true
+warn_unused_configs = true
+strict_equality = true
+
+[[tool.mypy.overrides]]
+module = [
+    "pretend"
+]
+ignore_missing_imports = true
+
+[tool.coverage.run]
+branch = true
+relative_files = true
+source = [
+    "cryptography",
+    "tests/",
+]
+
+[tool.coverage.paths]
+source = [
+   "src/cryptography",
+   "*.tox/*/lib*/python*/site-packages/cryptography",
+   "*.tox\\*\\Lib\\site-packages\\cryptography",
+   "*.tox/pypy/site-packages/cryptography",
+]
+tests =[
+   "tests/",
+   "*tests\\",
+]
+
+[tool.coverage.report]
+exclude_lines = [
+    "@abc.abstractmethod",
+    "@abc.abstractproperty",
+    "@typing.overload",
+    "if typing.TYPE_CHECKING",
+]

crates/flake8_to_ruff/examples/cryptography/setup.cfg

@@ -0,0 +1,91 @@
+[metadata]
+name = cryptography
+version = attr: cryptography.__version__
+description = cryptography is a package which provides cryptographic recipes and primitives to Python developers.
+long_description = file: README.rst
+long_description_content_type = text/x-rst
+license = BSD-3-Clause OR Apache-2.0
+url = https://github.com/pyca/cryptography
+author = The Python Cryptographic Authority and individual contributors
+author_email = cryptography-dev@python.org
+project_urls =
+    Documentation=https://cryptography.io/
+    Source=https://github.com/pyca/cryptography/
+    Issues=https://github.com/pyca/cryptography/issues
+    Changelog=https://cryptography.io/en/latest/changelog/
+classifiers =
+    Development Status :: 5 - Production/Stable
+    Intended Audience :: Developers
+    License :: OSI Approved :: Apache Software License
+    License :: OSI Approved :: BSD License
+    Natural Language :: English
+    Operating System :: MacOS :: MacOS X
+    Operating System :: POSIX
+    Operating System :: POSIX :: BSD
+    Operating System :: POSIX :: Linux
+    Operating System :: Microsoft :: Windows
+    Programming Language :: Python
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3 :: Only
+    Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
+    Programming Language :: Python :: Implementation :: CPython
+    Programming Language :: Python :: Implementation :: PyPy
+    Topic :: Security :: Cryptography
+
+[options]
+python_requires = >=3.6
+include_package_data = True
+zip_safe = False
+package_dir =
+    =src
+packages = find:
+# `install_requires` must be kept in sync with `pyproject.toml`
+install_requires =
+    cffi >=1.12
+
+[options.packages.find]
+where = src
+exclude =
+    _cffi_src
+    _cffi_src.*
+
+[options.extras_require]
+test =
+    pytest>=6.2.0
+    pytest-benchmark
+    pytest-cov
+    pytest-subtests
+    pytest-xdist
+    pretend
+    iso8601
+    pytz
+    hypothesis>=1.11.4,!=3.79.2
+docs =
+    sphinx >= 1.6.5,!=1.8.0,!=3.1.0,!=3.1.1,!=5.2.0,!=5.2.0.post0
+    sphinx_rtd_theme
+docstest =
+    pyenchant >= 1.6.11
+    twine >= 1.12.0
+    sphinxcontrib-spelling >= 4.0.1
+sdist =
+    setuptools_rust >= 0.11.4
+pep8test =
+    black
+    flake8
+    flake8-import-order
+    pep8-naming
+# This extra is for OpenSSH private keys that use bcrypt KDF
+# Versions: v3.1.3 - ignore_few_rounds, v3.1.5 - abi3
+ssh =
+    bcrypt >= 3.1.5
+
+[flake8]
+ignore = E203,E211,W503,W504,N818
+exclude = .tox,*.egg,.git,_build,.hypothesis
+select = E,W,F,N,I
+application-import-names = cryptography,cryptography_vectors,tests

crates/flake8_to_ruff/examples/jupyterhub.ini

@@ -0,0 +1,19 @@
+[flake8]
+# Ignore style and complexity
+# E: style errors
+# W: style warnings
+# C: complexity
+# D: docstring warnings (unused pydocstyle extension)
+# F841: local variable assigned but never used
+ignore = E, C, W, D, F841
+builtins = c, get_config
+exclude =
+    .cache,
+    .github,
+    docs,
+    jupyterhub/alembic*,
+    onbuild,
+    scripts,
+    share,
+    tools,
+    setup.py

crates/flake8_to_ruff/examples/manim.ini

@@ -0,0 +1,43 @@
+[flake8]
+# Exclude the grpc generated code
+exclude = ./manim/grpc/gen/*
+max-complexity = 15
+max-line-length = 88
+statistics = True
+# Prevents some flake8-rst-docstrings errors
+rst-roles = attr,class,func,meth,mod,obj,ref,doc,exc
+rst-directives = manim, SEEALSO, seealso
+docstring-convention=numpy
+
+select = A,A00,B,B9,C4,C90,D,E,F,F,PT,RST,SIM,W
+
+                # General Compatibility
+extend-ignore = E203, W503, D202, D212, D213, D404
+
+                # Misc
+                F401, F403, F405, F841, E501, E731, E402, F811, F821,
+
+                # Plug-in: flake8-builtins
+                A001, A002, A003,
+
+                # Plug-in: flake8-bugbear
+                B006, B007, B008, B009, B010, B903, B950,
+
+                # Plug-in: flake8-simplify
+                SIM105, SIM106, SIM119,
+
+                # Plug-in: flake8-comprehensions
+                C901
+
+                # Plug-in: flake8-pytest-style
+                PT001, PT004, PT006, PT011, PT018, PT022, PT023,
+
+                # Plug-in: flake8-docstrings
+                D100, D101, D102, D103, D104, D105, D106, D107,
+                D200, D202, D204, D205, D209,
+                D301,
+                D400, D401, D402, D403, D405, D406, D407, D409, D411, D412, D414,
+
+                # Plug-in: flake8-rst-docstrings
+                RST201, RST203, RST210, RST212, RST213, RST215,
+                RST301, RST303,

crates/flake8_to_ruff/examples/poetry.ini

@@ -0,0 +1,36 @@
+[flake8]
+min_python_version = 3.7.0
+max-line-length = 88
+ban-relative-imports = true
+# flake8-use-fstring: https://github.com/MichaelKim0407/flake8-use-fstring#--percent-greedy-and---format-greedy
+format-greedy = 1
+inline-quotes = double
+enable-extensions = TC, TC1
+type-checking-strict = true
+eradicate-whitelist-extend = ^-.*;
+extend-ignore =
+    # E203: Whitespace before ':' (pycqa/pycodestyle#373)
+    E203,
+    # SIM106: Handle error-cases first
+    SIM106,
+    # ANN101: Missing type annotation for self in method
+    ANN101,
+    # ANN102: Missing type annotation for cls in classmethod
+    ANN102,
+    # PIE781: assign-and-return
+    PIE781,
+    # PIE798 no-unnecessary-class: Consider using a module for namespacing instead
+    PIE798,
+per-file-ignores =
+    # TC002: Move third-party import '...' into a type-checking block
+    __init__.py:TC002,
+    # ANN201: Missing return type annotation for public function
+    tests/test_*:ANN201
+    tests/**/test_*:ANN201
+extend-exclude =
+    # Frozen and not subject to change in this repo:
+    get-poetry.py,
+    install-poetry.py,
+    # External to the project's coding standards:
+    tests/fixtures/*,
+    tests/**/fixtures/*,

crates/flake8_to_ruff/examples/python-discord.ini

@@ -0,0 +1,19 @@
+[flake8]
+max-line-length=120
+docstring-convention=all
+import-order-style=pycharm
+application_import_names=bot,tests
+exclude=.cache,.venv,.git,constants.py
+extend-ignore=
+    B311,W503,E226,S311,T000,E731
+    # Missing Docstrings
+    D100,D104,D105,D107,
+    # Docstring Whitespace
+    D203,D212,D214,D215,
+    # Docstring Quotes
+    D301,D302,
+    # Docstring Content
+    D400,D401,D402,D404,D405,D406,D407,D408,D409,D410,D411,D412,D413,D414,D416,D417
+    # Type Annotations
+    ANN002,ANN003,ANN101,ANN102,ANN204,ANN206,ANN401
+per-file-ignores=tests/*:D,ANN

crates/flake8_to_ruff/examples/requests.ini

@@ -0,0 +1,6 @@
+[flake8]
+ignore = E203, E501, W503
+per-file-ignores =
+    requests/__init__.py:E402, F401
+    requests/compat.py:E402, F401
+    tests/compat.py:F401

crates/flake8_to_ruff/pyproject.toml

@@ -0,0 +1,34 @@
+[project]
+name = "flake8-to-ruff"
+keywords = ["automation", "flake8", "pycodestyle", "pyflakes", "pylint", "clippy"]
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Environment :: Console",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3 :: Only",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    "Topic :: Software Development :: Quality Assurance",
+]
+author = "Charlie Marsh"
+author_email = "charlie.r.marsh@gmail.com"
+description = "Convert existing Flake8 configuration to Ruff."
+requires-python = ">=3.7"
+
+[project.urls]
+repository = "https://github.com/astral-sh/ruff#subdirectory=crates/flake8_to_ruff"
+
+[build-system]
+requires = ["maturin>=1.0,<2.0"]
+build-backend = "maturin"
+
+[tool.maturin]
+bindings = "bin"
+strip = true

crates/flake8_to_ruff/src/black.rs

@@ -0,0 +1,13 @@
+//! Extract Black configuration settings from a pyproject.toml.
+
+use ruff_linter::line_width::LineLength;
+use ruff_linter::settings::types::PythonVersion;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
+pub(crate) struct Black {
+    #[serde(alias = "line-length", alias = "line_length")]
+    pub(crate) line_length: Option<LineLength>,
+    #[serde(alias = "target-version", alias = "target_version")]
+    pub(crate) target_version: Option<Vec<PythonVersion>>,
+}

crates/flake8_to_ruff/src/converter.rs

@@ -0,0 +1,687 @@
+use std::collections::{HashMap, HashSet};
+use std::str::FromStr;
+
+use itertools::Itertools;
+
+use ruff_linter::line_width::LineLength;
+use ruff_linter::registry::Linter;
+use ruff_linter::rule_selector::RuleSelector;
+use ruff_linter::rules::flake8_pytest_style::types::{
+    ParametrizeNameType, ParametrizeValuesRowType, ParametrizeValuesType,
+};
+use ruff_linter::rules::flake8_quotes::settings::Quote;
+use ruff_linter::rules::flake8_tidy_imports::settings::Strictness;
+use ruff_linter::rules::pydocstyle::settings::Convention;
+use ruff_linter::settings::types::PythonVersion;
+use ruff_linter::settings::DEFAULT_SELECTORS;
+use ruff_linter::warn_user;
+use ruff_workspace::options::{
+    Flake8AnnotationsOptions, Flake8BugbearOptions, Flake8BuiltinsOptions, Flake8ErrMsgOptions,
+    Flake8PytestStyleOptions, Flake8QuotesOptions, Flake8TidyImportsOptions, LintCommonOptions,
+    LintOptions, McCabeOptions, Options, Pep8NamingOptions, PydocstyleOptions,
+};
+use ruff_workspace::pyproject::Pyproject;
+
+use super::external_config::ExternalConfig;
+use super::plugin::Plugin;
+use super::{parser, plugin};
+
+pub(crate) fn convert(
+    config: &HashMap<String, HashMap<String, Option<String>>>,
+    external_config: &ExternalConfig,
+    plugins: Option<Vec<Plugin>>,
+) -> Pyproject {
+    // Extract the Flake8 section.
+    let flake8 = config
+        .get("flake8")
+        .expect("Unable to find flake8 section in INI file");
+
+    // Extract all referenced rule code prefixes, to power plugin inference.
+    let mut referenced_codes: HashSet<RuleSelector> = HashSet::default();
+    for (key, value) in flake8 {
+        if let Some(value) = value {
+            match key.as_str() {
+                "select" | "ignore" | "extend-select" | "extend_select" | "extend-ignore"
+                | "extend_ignore" => {
+                    referenced_codes.extend(parser::parse_prefix_codes(value.as_ref()));
+                }
+                "per-file-ignores" | "per_file_ignores" => {
+                    if let Ok(per_file_ignores) =
+                        parser::parse_files_to_codes_mapping(value.as_ref())
+                    {
+                        for (_, codes) in parser::collect_per_file_ignores(per_file_ignores) {
+                            referenced_codes.extend(codes);
+                        }
+                    }
+                }
+                _ => {}
+            }
+        }
+    }
+
+    // Infer plugins, if not provided.
+    let plugins = plugins.unwrap_or_else(|| {
+        let from_options = plugin::infer_plugins_from_options(flake8);
+        if !from_options.is_empty() {
+            #[allow(clippy::print_stderr)]
+            {
+                eprintln!("Inferred plugins from settings: {from_options:#?}");
+            }
+        }
+        let from_codes = plugin::infer_plugins_from_codes(&referenced_codes);
+        if !from_codes.is_empty() {
+            #[allow(clippy::print_stderr)]
+            {
+                eprintln!("Inferred plugins from referenced codes: {from_codes:#?}");
+            }
+        }
+        from_options.into_iter().chain(from_codes).collect()
+    });
+
+    // Check if the user has specified a `select`. If not, we'll add our own
+    // default `select`, and populate it based on user plugins.
+    let mut select = flake8
+        .get("select")
+        .and_then(|value| {
+            value
+                .as_ref()
+                .map(|value| HashSet::from_iter(parser::parse_prefix_codes(value)))
+        })
+        .unwrap_or_else(|| resolve_select(&plugins));
+    let mut ignore: HashSet<RuleSelector> = flake8
+        .get("ignore")
+        .and_then(|value| {
+            value
+                .as_ref()
+                .map(|value| HashSet::from_iter(parser::parse_prefix_codes(value)))
+        })
+        .unwrap_or_default();
+
+    // Parse each supported option.
+    let mut options = Options::default();
+    let mut lint_options = LintCommonOptions::default();
+    let mut flake8_annotations = Flake8AnnotationsOptions::default();
+    let mut flake8_bugbear = Flake8BugbearOptions::default();
+    let mut flake8_builtins = Flake8BuiltinsOptions::default();
+    let mut flake8_errmsg = Flake8ErrMsgOptions::default();
+    let mut flake8_pytest_style = Flake8PytestStyleOptions::default();
+    let mut flake8_quotes = Flake8QuotesOptions::default();
+    let mut flake8_tidy_imports = Flake8TidyImportsOptions::default();
+    let mut mccabe = McCabeOptions::default();
+    let mut pep8_naming = Pep8NamingOptions::default();
+    let mut pydocstyle = PydocstyleOptions::default();
+    for (key, value) in flake8 {
+        if let Some(value) = value {
+            match key.as_str() {
+                // flake8
+                "builtins" => {
+                    options.builtins = Some(parser::parse_strings(value.as_ref()));
+                }
+                "max-line-length" | "max_line_length" => match LineLength::from_str(value) {
+                    Ok(line_length) => options.line_length = Some(line_length),
+                    Err(e) => {
+                        warn_user!("Unable to parse '{key}' property: {e}");
+                    }
+                },
+                "select" => {
+                    // No-op (handled above).
+                    select.extend(parser::parse_prefix_codes(value.as_ref()));
+                }
+                "ignore" => {
+                    // No-op (handled above).
+                }
+                "extend-select" | "extend_select" => {
+                    // Unlike Flake8, use a single explicit `select`.
+                    select.extend(parser::parse_prefix_codes(value.as_ref()));
+                }
+                "extend-ignore" | "extend_ignore" => {
+                    // Unlike Flake8, use a single explicit `ignore`.
+                    ignore.extend(parser::parse_prefix_codes(value.as_ref()));
+                }
+                "exclude" => {
+                    options.exclude = Some(parser::parse_strings(value.as_ref()));
+                }
+                "extend-exclude" | "extend_exclude" => {
+                    options.extend_exclude = Some(parser::parse_strings(value.as_ref()));
+                }
+                "per-file-ignores" | "per_file_ignores" => {
+                    match parser::parse_files_to_codes_mapping(value.as_ref()) {
+                        Ok(per_file_ignores) => {
+                            lint_options.per_file_ignores =
+                                Some(parser::collect_per_file_ignores(per_file_ignores));
+                        }
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                // flake8-bugbear
+                "extend-immutable-calls" | "extend_immutable_calls" => {
+                    flake8_bugbear.extend_immutable_calls =
+                        Some(parser::parse_strings(value.as_ref()));
+                }
+                // flake8-builtins
+                "builtins-ignorelist" | "builtins_ignorelist" => {
+                    flake8_builtins.builtins_ignorelist =
+                        Some(parser::parse_strings(value.as_ref()));
+                }
+                // flake8-annotations
+                "suppress-none-returning" | "suppress_none_returning" => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_annotations.suppress_none_returning = Some(bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                "suppress-dummy-args" | "suppress_dummy_args" => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_annotations.suppress_dummy_args = Some(bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                "mypy-init-return" | "mypy_init_return" => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_annotations.mypy_init_return = Some(bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                "allow-star-arg-any" | "allow_star_arg_any" => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_annotations.allow_star_arg_any = Some(bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                // flake8-quotes
+                "quotes" | "inline-quotes" | "inline_quotes" => match value.trim() {
+                    "'" | "single" => flake8_quotes.inline_quotes = Some(Quote::Single),
+                    "\"" | "double" => flake8_quotes.inline_quotes = Some(Quote::Double),
+                    _ => {
+                        warn_user!("Unexpected '{key}' value: {value}");
+                    }
+                },
+                "multiline-quotes" | "multiline_quotes" => match value.trim() {
+                    "'" | "single" => flake8_quotes.multiline_quotes = Some(Quote::Single),
+                    "\"" | "double" => flake8_quotes.multiline_quotes = Some(Quote::Double),
+                    _ => {
+                        warn_user!("Unexpected '{key}' value: {value}");
+                    }
+                },
+                "docstring-quotes" | "docstring_quotes" => match value.trim() {
+                    "'" | "single" => flake8_quotes.docstring_quotes = Some(Quote::Single),
+                    "\"" | "double" => flake8_quotes.docstring_quotes = Some(Quote::Double),
+                    _ => {
+                        warn_user!("Unexpected '{key}' value: {value}");
+                    }
+                },
+                "avoid-escape" | "avoid_escape" => match parser::parse_bool(value.as_ref()) {
+                    Ok(bool) => flake8_quotes.avoid_escape = Some(bool),
+                    Err(e) => {
+                        warn_user!("Unable to parse '{key}' property: {e}");
+                    }
+                },
+                // pep8-naming
+                "ignore-names" | "ignore_names" => {
+                    pep8_naming.ignore_names = Some(parser::parse_strings(value.as_ref()));
+                }
+                "classmethod-decorators" | "classmethod_decorators" => {
+                    pep8_naming.classmethod_decorators =
+                        Some(parser::parse_strings(value.as_ref()));
+                }
+                "staticmethod-decorators" | "staticmethod_decorators" => {
+                    pep8_naming.staticmethod_decorators =
+                        Some(parser::parse_strings(value.as_ref()));
+                }
+                // flake8-tidy-imports
+                "ban-relative-imports" | "ban_relative_imports" => match value.trim() {
+                    "true" => flake8_tidy_imports.ban_relative_imports = Some(Strictness::All),
+                    "parents" => {
+                        flake8_tidy_imports.ban_relative_imports = Some(Strictness::Parents);
+                    }
+                    _ => {
+                        warn_user!("Unexpected '{key}' value: {value}");
+                    }
+                },
+                // flake8-docstrings
+                "docstring-convention" => match value.trim() {
+                    "google" => pydocstyle.convention = Some(Convention::Google),
+                    "numpy" => pydocstyle.convention = Some(Convention::Numpy),
+                    "pep257" => pydocstyle.convention = Some(Convention::Pep257),
+                    "all" => pydocstyle.convention = None,
+                    _ => {
+                        warn_user!("Unexpected '{key}' value: {value}");
+                    }
+                },
+                // mccabe
+                "max-complexity" | "max_complexity" => match value.parse::<usize>() {
+                    Ok(max_complexity) => mccabe.max_complexity = Some(max_complexity),
+                    Err(e) => {
+                        warn_user!("Unable to parse '{key}' property: {e}");
+                    }
+                },
+                // flake8-errmsg
+                "errmsg-max-string-length" | "errmsg_max_string_length" => {
+                    match value.parse::<usize>() {
+                        Ok(max_string_length) => {
+                            flake8_errmsg.max_string_length = Some(max_string_length);
+                        }
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                // flake8-pytest-style
+                "pytest-fixture-no-parentheses" | "pytest_fixture_no_parentheses " => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_pytest_style.fixture_parentheses = Some(!bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                "pytest-parametrize-names-type" | "pytest_parametrize_names_type" => {
+                    match value.trim() {
+                        "csv" => {
+                            flake8_pytest_style.parametrize_names_type =
+                                Some(ParametrizeNameType::Csv);
+                        }
+                        "tuple" => {
+                            flake8_pytest_style.parametrize_names_type =
+                                Some(ParametrizeNameType::Tuple);
+                        }
+                        "list" => {
+                            flake8_pytest_style.parametrize_names_type =
+                                Some(ParametrizeNameType::List);
+                        }
+                        _ => {
+                            warn_user!("Unexpected '{key}' value: {value}");
+                        }
+                    }
+                }
+                "pytest-parametrize-values-type" | "pytest_parametrize_values_type" => {
+                    match value.trim() {
+                        "tuple" => {
+                            flake8_pytest_style.parametrize_values_type =
+                                Some(ParametrizeValuesType::Tuple);
+                        }
+                        "list" => {
+                            flake8_pytest_style.parametrize_values_type =
+                                Some(ParametrizeValuesType::List);
+                        }
+                        _ => {
+                            warn_user!("Unexpected '{key}' value: {value}");
+                        }
+                    }
+                }
+                "pytest-parametrize-values-row-type" | "pytest_parametrize_values_row_type" => {
+                    match value.trim() {
+                        "tuple" => {
+                            flake8_pytest_style.parametrize_values_row_type =
+                                Some(ParametrizeValuesRowType::Tuple);
+                        }
+                        "list" => {
+                            flake8_pytest_style.parametrize_values_row_type =
+                                Some(ParametrizeValuesRowType::List);
+                        }
+                        _ => {
+                            warn_user!("Unexpected '{key}' value: {value}");
+                        }
+                    }
+                }
+                "pytest-raises-require-match-for" | "pytest_raises_require_match_for" => {
+                    flake8_pytest_style.raises_require_match_for =
+                        Some(parser::parse_strings(value.as_ref()));
+                }
+                "pytest-mark-no-parentheses" | "pytest_mark_no_parentheses" => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_pytest_style.mark_parentheses = Some(!bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                // Unknown
+                _ => {
+                    warn_user!("Skipping unsupported property: {}", key);
+                }
+            }
+        }
+    }
+
+    // Deduplicate and sort.
+    lint_options.select = Some(
+        select
+            .into_iter()
+            .sorted_by_key(RuleSelector::prefix_and_code)
+            .collect(),
+    );
+    lint_options.ignore = Some(
+        ignore
+            .into_iter()
+            .sorted_by_key(RuleSelector::prefix_and_code)
+            .collect(),
+    );
+    if flake8_annotations != Flake8AnnotationsOptions::default() {
+        lint_options.flake8_annotations = Some(flake8_annotations);
+    }
+    if flake8_bugbear != Flake8BugbearOptions::default() {
+        lint_options.flake8_bugbear = Some(flake8_bugbear);
+    }
+    if flake8_builtins != Flake8BuiltinsOptions::default() {
+        lint_options.flake8_builtins = Some(flake8_builtins);
+    }
+    if flake8_errmsg != Flake8ErrMsgOptions::default() {
+        lint_options.flake8_errmsg = Some(flake8_errmsg);
+    }
+    if flake8_pytest_style != Flake8PytestStyleOptions::default() {
+        lint_options.flake8_pytest_style = Some(flake8_pytest_style);
+    }
+    if flake8_quotes != Flake8QuotesOptions::default() {
+        lint_options.flake8_quotes = Some(flake8_quotes);
+    }
+    if flake8_tidy_imports != Flake8TidyImportsOptions::default() {
+        lint_options.flake8_tidy_imports = Some(flake8_tidy_imports);
+    }
+    if mccabe != McCabeOptions::default() {
+        lint_options.mccabe = Some(mccabe);
+    }
+    if pep8_naming != Pep8NamingOptions::default() {
+        lint_options.pep8_naming = Some(pep8_naming);
+    }
+    if pydocstyle != PydocstyleOptions::default() {
+        lint_options.pydocstyle = Some(pydocstyle);
+    }
+
+    // Extract any settings from the existing `pyproject.toml`.
+    if let Some(black) = &external_config.black {
+        if let Some(line_length) = &black.line_length {
+            options.line_length = Some(*line_length);
+        }
+
+        if let Some(target_version) = &black.target_version {
+            if let Some(target_version) = target_version.iter().min() {
+                options.target_version = Some(*target_version);
+            }
+        }
+    }
+
+    if let Some(isort) = &external_config.isort {
+        if let Some(src_paths) = &isort.src_paths {
+            match options.src.as_mut() {
+                Some(src) => {
+                    src.extend_from_slice(src_paths);
+                }
+                None => {
+                    options.src = Some(src_paths.clone());
+                }
+            }
+        }
+    }
+
+    if let Some(project) = &external_config.project {
+        if let Some(requires_python) = &project.requires_python {
+            if options.target_version.is_none() {
+                options.target_version =
+                    PythonVersion::get_minimum_supported_version(requires_python);
+            }
+        }
+    }
+
+    if lint_options != LintCommonOptions::default() {
+        options.lint = Some(LintOptions {
+            common: lint_options,
+            ..LintOptions::default()
+        });
+    }
+
+    // Create the pyproject.toml.
+    Pyproject::new(options)
+}
+
+/// Resolve the set of enabled `RuleSelector` values for the given
+/// plugins.
+fn resolve_select(plugins: &[Plugin]) -> HashSet<RuleSelector> {
+    let mut select: HashSet<_> = DEFAULT_SELECTORS.iter().cloned().collect();
+    select.extend(plugins.iter().map(|p| Linter::from(p).into()));
+    select
+}
+
+#[cfg(test)]
+mod tests {
+    use std::collections::HashMap;
+    use std::str::FromStr;
+
+    use anyhow::Result;
+    use itertools::Itertools;
+    use pep440_rs::VersionSpecifiers;
+
+    use pretty_assertions::assert_eq;
+    use ruff_linter::line_width::LineLength;
+    use ruff_linter::registry::Linter;
+    use ruff_linter::rule_selector::RuleSelector;
+    use ruff_linter::rules::flake8_quotes;
+    use ruff_linter::rules::pydocstyle::settings::Convention;
+    use ruff_linter::settings::types::PythonVersion;
+    use ruff_workspace::options::{
+        Flake8QuotesOptions, LintCommonOptions, LintOptions, Options, PydocstyleOptions,
+    };
+    use ruff_workspace::pyproject::Pyproject;
+
+    use crate::converter::DEFAULT_SELECTORS;
+    use crate::pep621::Project;
+    use crate::ExternalConfig;
+
+    use super::super::plugin::Plugin;
+    use super::convert;
+
+    fn lint_default_options(plugins: impl IntoIterator<Item = RuleSelector>) -> LintCommonOptions {
+        LintCommonOptions {
+            ignore: Some(vec![]),
+            select: Some(
+                DEFAULT_SELECTORS
+                    .iter()
+                    .cloned()
+                    .chain(plugins)
+                    .sorted_by_key(RuleSelector::prefix_and_code)
+                    .collect(),
+            ),
+            ..LintCommonOptions::default()
+        }
+    }
+
+    #[test]
+    fn it_converts_empty() {
+        let actual = convert(
+            &HashMap::from([("flake8".to_string(), HashMap::default())]),
+            &ExternalConfig::default(),
+            None,
+        );
+        let expected = Pyproject::new(Options {
+            lint: Some(LintOptions {
+                common: lint_default_options([]),
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_converts_dashes() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([("max-line-length".to_string(), Some("100".to_string()))]),
+            )]),
+            &ExternalConfig::default(),
+            Some(vec![]),
+        );
+        let expected = Pyproject::new(Options {
+            line_length: Some(LineLength::try_from(100).unwrap()),
+            lint: Some(LintOptions {
+                common: lint_default_options([]),
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_converts_underscores() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([("max_line_length".to_string(), Some("100".to_string()))]),
+            )]),
+            &ExternalConfig::default(),
+            Some(vec![]),
+        );
+        let expected = Pyproject::new(Options {
+            line_length: Some(LineLength::try_from(100).unwrap()),
+            lint: Some(LintOptions {
+                common: lint_default_options([]),
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_ignores_parse_errors() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([("max_line_length".to_string(), Some("abc".to_string()))]),
+            )]),
+            &ExternalConfig::default(),
+            Some(vec![]),
+        );
+        let expected = Pyproject::new(Options {
+            lint: Some(LintOptions {
+                common: lint_default_options([]),
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_converts_plugin_options() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([("inline-quotes".to_string(), Some("single".to_string()))]),
+            )]),
+            &ExternalConfig::default(),
+            Some(vec![]),
+        );
+        let expected = Pyproject::new(Options {
+            lint: Some(LintOptions {
+                common: LintCommonOptions {
+                    flake8_quotes: Some(Flake8QuotesOptions {
+                        inline_quotes: Some(flake8_quotes::settings::Quote::Single),
+                        multiline_quotes: None,
+                        docstring_quotes: None,
+                        avoid_escape: None,
+                    }),
+                    ..lint_default_options([])
+                },
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_converts_docstring_conventions() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([(
+                    "docstring-convention".to_string(),
+                    Some("numpy".to_string()),
+                )]),
+            )]),
+            &ExternalConfig::default(),
+            Some(vec![Plugin::Flake8Docstrings]),
+        );
+        let expected = Pyproject::new(Options {
+            lint: Some(LintOptions {
+                common: LintCommonOptions {
+                    pydocstyle: Some(PydocstyleOptions {
+                        convention: Some(Convention::Numpy),
+                        ignore_decorators: None,
+                        property_decorators: None,
+                    }),
+                    ..lint_default_options([Linter::Pydocstyle.into()])
+                },
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_infers_plugins_if_omitted() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([("inline-quotes".to_string(), Some("single".to_string()))]),
+            )]),
+            &ExternalConfig::default(),
+            None,
+        );
+        let expected = Pyproject::new(Options {
+            lint: Some(LintOptions {
+                common: LintCommonOptions {
+                    flake8_quotes: Some(Flake8QuotesOptions {
+                        inline_quotes: Some(flake8_quotes::settings::Quote::Single),
+                        multiline_quotes: None,
+                        docstring_quotes: None,
+                        avoid_escape: None,
+                    }),
+                    ..lint_default_options([Linter::Flake8Quotes.into()])
+                },
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_converts_project_requires_python() -> Result<()> {
+        let actual = convert(
+            &HashMap::from([("flake8".to_string(), HashMap::default())]),
+            &ExternalConfig {
+                project: Some(&Project {
+                    requires_python: Some(VersionSpecifiers::from_str(">=3.8.16, <3.11")?),
+                }),
+                ..ExternalConfig::default()
+            },
+            Some(vec![]),
+        );
+        let expected = Pyproject::new(Options {
+            target_version: Some(PythonVersion::Py38),
+            lint: Some(LintOptions {
+                common: lint_default_options([]),
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+
+        Ok(())
+    }
+}

crates/flake8_to_ruff/src/external_config.rs

@@ -0,0 +1,10 @@
+use super::black::Black;
+use super::isort::Isort;
+use super::pep621::Project;
+
+#[derive(Default)]
+pub(crate) struct ExternalConfig<'a> {
+    pub(crate) black: Option<&'a Black>,
+    pub(crate) isort: Option<&'a Isort>,
+    pub(crate) project: Option<&'a Project>,
+}

crates/flake8_to_ruff/src/isort.rs

@@ -0,0 +1,10 @@
+//! Extract isort configuration settings from a pyproject.toml.
+
+use serde::{Deserialize, Serialize};
+
+/// The [isort configuration](https://pycqa.github.io/isort/docs/configuration/config_files.html).
+#[derive(Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
+pub(crate) struct Isort {
+    #[serde(alias = "src-paths", alias = "src_paths")]
+    pub(crate) src_paths: Option<Vec<String>>,
+}

crates/flake8_to_ruff/src/main.rs

@@ -0,0 +1,80 @@
+//! Utility to generate Ruff's `pyproject.toml` section from a Flake8 INI file.
+
+mod black;
+mod converter;
+mod external_config;
+mod isort;
+mod parser;
+mod pep621;
+mod plugin;
+mod pyproject;
+
+use std::path::PathBuf;
+
+use anyhow::Result;
+use clap::Parser;
+use configparser::ini::Ini;
+
+use crate::converter::convert;
+use crate::external_config::ExternalConfig;
+use crate::plugin::Plugin;
+use crate::pyproject::parse;
+use ruff_linter::logging::{set_up_logging, LogLevel};
+
+#[derive(Parser)]
+#[command(
+    about = "Convert existing Flake8 configuration to Ruff.",
+    long_about = None
+)]
+struct Args {
+    /// Path to the Flake8 configuration file (e.g., `setup.cfg`, `tox.ini`, or
+    /// `.flake8`).
+    #[arg(required = true)]
+    file: PathBuf,
+    /// Optional path to a `pyproject.toml` file, used to ensure compatibility
+    /// with Black.
+    #[arg(long)]
+    pyproject: Option<PathBuf>,
+    /// List of plugins to enable.
+    #[arg(long, value_delimiter = ',')]
+    plugin: Option<Vec<Plugin>>,
+}
+
+fn main() -> Result<()> {
+    set_up_logging(&LogLevel::Default)?;
+
+    let args = Args::parse();
+
+    // Read the INI file.
+    let mut ini = Ini::new_cs();
+    ini.set_multiline(true);
+    let config = ini.load(args.file).map_err(|msg| anyhow::anyhow!(msg))?;
+
+    // Read the pyproject.toml file.
+    let pyproject = args.pyproject.map(parse).transpose()?;
+    let external_config = pyproject
+        .as_ref()
+        .and_then(|pyproject| pyproject.tool.as_ref())
+        .map(|tool| ExternalConfig {
+            black: tool.black.as_ref(),
+            isort: tool.isort.as_ref(),
+            ..Default::default()
+        })
+        .unwrap_or_default();
+    let external_config = ExternalConfig {
+        project: pyproject
+            .as_ref()
+            .and_then(|pyproject| pyproject.project.as_ref()),
+        ..external_config
+    };
+
+    // Create Ruff's pyproject.toml section.
+    let pyproject = convert(&config, &external_config, args.plugin);
+
+    #[allow(clippy::print_stdout)]
+    {
+        println!("{}", toml::to_string_pretty(&pyproject)?);
+    }
+
+    Ok(())
+}

crates/flake8_to_ruff/src/parser.rs

@@ -0,0 +1,391 @@
+use std::str::FromStr;
+
+use anyhow::{bail, Result};
+use once_cell::sync::Lazy;
+use regex::Regex;
+use rustc_hash::FxHashMap;
+
+use ruff_linter::settings::types::PatternPrefixPair;
+use ruff_linter::{warn_user, RuleSelector};
+
+static COMMA_SEPARATED_LIST_RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"[,\s]").unwrap());
+
+/// Parse a comma-separated list of `RuleSelector` values (e.g.,
+/// "F401,E501").
+pub(crate) fn parse_prefix_codes(value: &str) -> Vec<RuleSelector> {
+    let mut codes: Vec<RuleSelector> = vec![];
+    for code in COMMA_SEPARATED_LIST_RE.split(value) {
+        let code = code.trim();
+        if code.is_empty() {
+            continue;
+        }
+        if let Ok(code) = RuleSelector::from_str(code) {
+            codes.push(code);
+        } else {
+            warn_user!("Unsupported prefix code: {code}");
+        }
+    }
+    codes
+}
+
+/// Parse a comma-separated list of strings (e.g., "__init__.py,__main__.py").
+pub(crate) fn parse_strings(value: &str) -> Vec<String> {
+    COMMA_SEPARATED_LIST_RE
+        .split(value)
+        .map(str::trim)
+        .filter(|part| !part.is_empty())
+        .map(String::from)
+        .collect()
+}
+
+/// Parse a boolean.
+pub(crate) fn parse_bool(value: &str) -> Result<bool> {
+    match value.trim() {
+        "true" => Ok(true),
+        "false" => Ok(false),
+        _ => bail!("Unexpected boolean value: {value}"),
+    }
+}
+
+#[derive(Debug)]
+struct Token {
+    token_name: TokenType,
+    src: String,
+}
+
+#[derive(Debug, Copy, Clone)]
+enum TokenType {
+    Code,
+    File,
+    Colon,
+    Comma,
+    Ws,
+    Eof,
+}
+
+struct State {
+    seen_sep: bool,
+    seen_colon: bool,
+    filenames: Vec<String>,
+    codes: Vec<String>,
+}
+
+impl State {
+    const fn new() -> Self {
+        Self {
+            seen_sep: true,
+            seen_colon: false,
+            filenames: vec![],
+            codes: vec![],
+        }
+    }
+
+    /// Generate the list of `StrRuleCodePair` pairs for the current
+    /// state.
+    fn parse(&self) -> Vec<PatternPrefixPair> {
+        let mut codes: Vec<PatternPrefixPair> = vec![];
+        for code in &self.codes {
+            if let Ok(code) = RuleSelector::from_str(code) {
+                for filename in &self.filenames {
+                    codes.push(PatternPrefixPair {
+                        pattern: filename.clone(),
+                        prefix: code.clone(),
+                    });
+                }
+            } else {
+                warn_user!("Unsupported prefix code: {code}");
+            }
+        }
+        codes
+    }
+}
+
+/// Tokenize the raw 'files-to-codes' mapping.
+fn tokenize_files_to_codes_mapping(value: &str) -> Vec<Token> {
+    let mut tokens = vec![];
+    let mut i = 0;
+    while i < value.len() {
+        for (token_re, token_name) in [
+            (
+                Regex::new(r"([A-Z]+[0-9]*)(?:$|\s|,)").unwrap(),
+                TokenType::Code,
+            ),
+            (Regex::new(r"([^\s:,]+)").unwrap(), TokenType::File),
+            (Regex::new(r"(\s*:\s*)").unwrap(), TokenType::Colon),
+            (Regex::new(r"(\s*,\s*)").unwrap(), TokenType::Comma),
+            (Regex::new(r"(\s+)").unwrap(), TokenType::Ws),
+        ] {
+            if let Some(cap) = token_re.captures(&value[i..]) {
+                let mat = cap.get(1).unwrap();
+                if mat.start() == 0 {
+                    tokens.push(Token {
+                        token_name,
+                        src: mat.as_str().trim().to_string(),
+                    });
+                    i += mat.end();
+                    break;
+                }
+            }
+        }
+    }
+    tokens.push(Token {
+        token_name: TokenType::Eof,
+        src: String::new(),
+    });
+    tokens
+}
+
+/// Parse a 'files-to-codes' mapping, mimicking Flake8's internal logic.
+/// See: <https://github.com/PyCQA/flake8/blob/7dfe99616fc2f07c0017df2ba5fa884158f3ea8a/src/flake8/utils.py#L45>
+pub(crate) fn parse_files_to_codes_mapping(value: &str) -> Result<Vec<PatternPrefixPair>> {
+    if value.trim().is_empty() {
+        return Ok(vec![]);
+    }
+    let mut codes: Vec<PatternPrefixPair> = vec![];
+    let mut state = State::new();
+    for token in tokenize_files_to_codes_mapping(value) {
+        if matches!(token.token_name, TokenType::Comma | TokenType::Ws) {
+            state.seen_sep = true;
+        } else if !state.seen_colon {
+            if matches!(token.token_name, TokenType::Colon) {
+                state.seen_colon = true;
+                state.seen_sep = true;
+            } else if state.seen_sep && matches!(token.token_name, TokenType::File) {
+                state.filenames.push(token.src);
+                state.seen_sep = false;
+            } else {
+                bail!("Unexpected token: {:?}", token.token_name);
+            }
+        } else {
+            if matches!(token.token_name, TokenType::Eof) {
+                codes.extend(state.parse());
+                state = State::new();
+            } else if state.seen_sep && matches!(token.token_name, TokenType::Code) {
+                state.codes.push(token.src);
+                state.seen_sep = false;
+            } else if state.seen_sep && matches!(token.token_name, TokenType::File) {
+                codes.extend(state.parse());
+                state = State::new();
+                state.filenames.push(token.src);
+                state.seen_sep = false;
+            } else {
+                bail!("Unexpected token: {:?}", token.token_name);
+            }
+        }
+    }
+    Ok(codes)
+}
+
+/// Collect a list of `PatternPrefixPair` structs as a `BTreeMap`.
+pub(crate) fn collect_per_file_ignores(
+    pairs: Vec<PatternPrefixPair>,
+) -> FxHashMap<String, Vec<RuleSelector>> {
+    let mut per_file_ignores: FxHashMap<String, Vec<RuleSelector>> = FxHashMap::default();
+    for pair in pairs {
+        per_file_ignores
+            .entry(pair.pattern)
+            .or_default()
+            .push(pair.prefix);
+    }
+    per_file_ignores
+}
+
+#[cfg(test)]
+mod tests {
+    use anyhow::Result;
+
+    use ruff_linter::codes;
+    use ruff_linter::registry::Linter;
+    use ruff_linter::settings::types::PatternPrefixPair;
+    use ruff_linter::RuleSelector;
+
+    use super::{parse_files_to_codes_mapping, parse_prefix_codes, parse_strings};
+
+    #[test]
+    fn it_parses_prefix_codes() {
+        let actual = parse_prefix_codes("");
+        let expected: Vec<RuleSelector> = vec![];
+        assert_eq!(actual, expected);
+
+        let actual = parse_prefix_codes(" ");
+        let expected: Vec<RuleSelector> = vec![];
+        assert_eq!(actual, expected);
+
+        let actual = parse_prefix_codes("F401");
+        let expected = vec![codes::Pyflakes::_401.into()];
+        assert_eq!(actual, expected);
+
+        let actual = parse_prefix_codes("F401,");
+        let expected = vec![codes::Pyflakes::_401.into()];
+        assert_eq!(actual, expected);
+
+        let actual = parse_prefix_codes("F401,E501");
+        let expected = vec![
+            codes::Pyflakes::_401.into(),
+            codes::Pycodestyle::E501.into(),
+        ];
+        assert_eq!(actual, expected);
+
+        let actual = parse_prefix_codes("F401, E501");
+        let expected = vec![
+            codes::Pyflakes::_401.into(),
+            codes::Pycodestyle::E501.into(),
+        ];
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_parses_strings() {
+        let actual = parse_strings("");
+        let expected: Vec<String> = vec![];
+        assert_eq!(actual, expected);
+
+        let actual = parse_strings(" ");
+        let expected: Vec<String> = vec![];
+        assert_eq!(actual, expected);
+
+        let actual = parse_strings("__init__.py");
+        let expected = vec!["__init__.py".to_string()];
+        assert_eq!(actual, expected);
+
+        let actual = parse_strings("__init__.py,");
+        let expected = vec!["__init__.py".to_string()];
+        assert_eq!(actual, expected);
+
+        let actual = parse_strings("__init__.py,__main__.py");
+        let expected = vec!["__init__.py".to_string(), "__main__.py".to_string()];
+        assert_eq!(actual, expected);
+
+        let actual = parse_strings("__init__.py, __main__.py");
+        let expected = vec!["__init__.py".to_string(), "__main__.py".to_string()];
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_parse_files_to_codes_mapping() -> Result<()> {
+        let actual = parse_files_to_codes_mapping("")?;
+        let expected: Vec<PatternPrefixPair> = vec![];
+        assert_eq!(actual, expected);
+
+        let actual = parse_files_to_codes_mapping(" ")?;
+        let expected: Vec<PatternPrefixPair> = vec![];
+        assert_eq!(actual, expected);
+
+        // Ex) locust
+        let actual = parse_files_to_codes_mapping(
+            "per-file-ignores =
+    locust/test/*: F841
+    examples/*: F841
+    *.pyi: E302,E704"
+                .strip_prefix("per-file-ignores =")
+                .unwrap(),
+        )?;
+        let expected: Vec<PatternPrefixPair> = vec![
+            PatternPrefixPair {
+                pattern: "locust/test/*".to_string(),
+                prefix: codes::Pyflakes::_841.into(),
+            },
+            PatternPrefixPair {
+                pattern: "examples/*".to_string(),
+                prefix: codes::Pyflakes::_841.into(),
+            },
+        ];
+        assert_eq!(actual, expected);
+
+        // Ex) celery
+        let actual = parse_files_to_codes_mapping(
+            "per-file-ignores =
+   t/*,setup.py,examples/*,docs/*,extra/*:
+       D,"
+            .strip_prefix("per-file-ignores =")
+            .unwrap(),
+        )?;
+        let expected: Vec<PatternPrefixPair> = vec![
+            PatternPrefixPair {
+                pattern: "t/*".to_string(),
+                prefix: Linter::Pydocstyle.into(),
+            },
+            PatternPrefixPair {
+                pattern: "setup.py".to_string(),
+                prefix: Linter::Pydocstyle.into(),
+            },
+            PatternPrefixPair {
+                pattern: "examples/*".to_string(),
+                prefix: Linter::Pydocstyle.into(),
+            },
+            PatternPrefixPair {
+                pattern: "docs/*".to_string(),
+                prefix: Linter::Pydocstyle.into(),
+            },
+            PatternPrefixPair {
+                pattern: "extra/*".to_string(),
+                prefix: Linter::Pydocstyle.into(),
+            },
+        ];
+        assert_eq!(actual, expected);
+
+        // Ex) scrapy
+        let actual = parse_files_to_codes_mapping(
+            "per-file-ignores =
+    scrapy/__init__.py:E402
+    scrapy/core/downloader/handlers/http.py:F401
+    scrapy/http/__init__.py:F401
+    scrapy/linkextractors/__init__.py:E402,F401
+    scrapy/selector/__init__.py:F401
+    scrapy/spiders/__init__.py:E402,F401
+    scrapy/utils/url.py:F403,F405
+    tests/test_loader.py:E741"
+                .strip_prefix("per-file-ignores =")
+                .unwrap(),
+        )?;
+        let expected: Vec<PatternPrefixPair> = vec![
+            PatternPrefixPair {
+                pattern: "scrapy/__init__.py".to_string(),
+                prefix: codes::Pycodestyle::E402.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/core/downloader/handlers/http.py".to_string(),
+                prefix: codes::Pyflakes::_401.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/http/__init__.py".to_string(),
+                prefix: codes::Pyflakes::_401.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/linkextractors/__init__.py".to_string(),
+                prefix: codes::Pycodestyle::E402.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/linkextractors/__init__.py".to_string(),
+                prefix: codes::Pyflakes::_401.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/selector/__init__.py".to_string(),
+                prefix: codes::Pyflakes::_401.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/spiders/__init__.py".to_string(),
+                prefix: codes::Pycodestyle::E402.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/spiders/__init__.py".to_string(),
+                prefix: codes::Pyflakes::_401.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/utils/url.py".to_string(),
+                prefix: codes::Pyflakes::_403.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/utils/url.py".to_string(),
+                prefix: codes::Pyflakes::_405.into(),
+            },
+            PatternPrefixPair {
+                pattern: "tests/test_loader.py".to_string(),
+                prefix: codes::Pycodestyle::E741.into(),
+            },
+        ];
+        assert_eq!(actual, expected);
+
+        Ok(())
+    }
+}

crates/flake8_to_ruff/src/pep621.rs

@@ -0,0 +1,10 @@
+//! Extract PEP 621 configuration settings from a pyproject.toml.
+
+use pep440_rs::VersionSpecifiers;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
+pub(crate) struct Project {
+    #[serde(alias = "requires-python", alias = "requires_python")]
+    pub(crate) requires_python: Option<VersionSpecifiers>,
+}

crates/flake8_to_ruff/src/plugin.rs

@@ -0,0 +1,368 @@
+use std::collections::{BTreeSet, HashMap, HashSet};
+use std::fmt;
+use std::str::FromStr;
+
+use anyhow::anyhow;
+use ruff_linter::registry::Linter;
+use ruff_linter::rule_selector::PreviewOptions;
+use ruff_linter::RuleSelector;
+
+#[derive(Copy, Clone, Ord, PartialOrd, Eq, PartialEq)]
+pub enum Plugin {
+    Flake82020,
+    Flake8Annotations,
+    Flake8Bandit,
+    Flake8BlindExcept,
+    Flake8BooleanTrap,
+    Flake8Bugbear,
+    Flake8Builtins,
+    Flake8Commas,
+    Flake8Comprehensions,
+    Flake8Datetimez,
+    Flake8Debugger,
+    Flake8Docstrings,
+    Flake8Eradicate,
+    Flake8ErrMsg,
+    Flake8Executable,
+    Flake8ImplicitStrConcat,
+    Flake8ImportConventions,
+    Flake8NoPep420,
+    Flake8Pie,
+    Flake8Print,
+    Flake8PytestStyle,
+    Flake8Quotes,
+    Flake8Return,
+    Flake8Simplify,
+    Flake8TidyImports,
+    Flake8TypeChecking,
+    Flake8UnusedArguments,
+    Flake8UsePathlib,
+    McCabe,
+    PEP8Naming,
+    PandasVet,
+    Pyupgrade,
+    Tryceratops,
+}
+
+impl FromStr for Plugin {
+    type Err = anyhow::Error;
+
+    fn from_str(string: &str) -> Result<Self, Self::Err> {
+        match string {
+            "flake8-2020" => Ok(Plugin::Flake82020),
+            "flake8-annotations" => Ok(Plugin::Flake8Annotations),
+            "flake8-bandit" => Ok(Plugin::Flake8Bandit),
+            "flake8-blind-except" => Ok(Plugin::Flake8BlindExcept),
+            "flake8-boolean-trap" => Ok(Plugin::Flake8BooleanTrap),
+            "flake8-bugbear" => Ok(Plugin::Flake8Bugbear),
+            "flake8-builtins" => Ok(Plugin::Flake8Builtins),
+            "flake8-commas" => Ok(Plugin::Flake8Commas),
+            "flake8-comprehensions" => Ok(Plugin::Flake8Comprehensions),
+            "flake8-datetimez" => Ok(Plugin::Flake8Datetimez),
+            "flake8-debugger" => Ok(Plugin::Flake8Debugger),
+            "flake8-docstrings" => Ok(Plugin::Flake8Docstrings),
+            "flake8-eradicate" => Ok(Plugin::Flake8Eradicate),
+            "flake8-errmsg" => Ok(Plugin::Flake8ErrMsg),
+            "flake8-executable" => Ok(Plugin::Flake8Executable),
+            "flake8-implicit-str-concat" => Ok(Plugin::Flake8ImplicitStrConcat),
+            "flake8-import-conventions" => Ok(Plugin::Flake8ImportConventions),
+            "flake8-no-pep420" => Ok(Plugin::Flake8NoPep420),
+            "flake8-pie" => Ok(Plugin::Flake8Pie),
+            "flake8-print" => Ok(Plugin::Flake8Print),
+            "flake8-pytest-style" => Ok(Plugin::Flake8PytestStyle),
+            "flake8-quotes" => Ok(Plugin::Flake8Quotes),
+            "flake8-return" => Ok(Plugin::Flake8Return),
+            "flake8-simplify" => Ok(Plugin::Flake8Simplify),
+            "flake8-tidy-imports" => Ok(Plugin::Flake8TidyImports),
+            "flake8-type-checking" => Ok(Plugin::Flake8TypeChecking),
+            "flake8-unused-arguments" => Ok(Plugin::Flake8UnusedArguments),
+            "flake8-use-pathlib" => Ok(Plugin::Flake8UsePathlib),
+            "mccabe" => Ok(Plugin::McCabe),
+            "pep8-naming" => Ok(Plugin::PEP8Naming),
+            "pandas-vet" => Ok(Plugin::PandasVet),
+            "pyupgrade" => Ok(Plugin::Pyupgrade),
+            "tryceratops" => Ok(Plugin::Tryceratops),
+            _ => Err(anyhow!("Unknown plugin: {string}")),
+        }
+    }
+}
+
+impl fmt::Debug for Plugin {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(
+            f,
+            "{}",
+            match self {
+                Plugin::Flake82020 => "flake8-2020",
+                Plugin::Flake8Annotations => "flake8-annotations",
+                Plugin::Flake8Bandit => "flake8-bandit",
+                Plugin::Flake8BlindExcept => "flake8-blind-except",
+                Plugin::Flake8BooleanTrap => "flake8-boolean-trap",
+                Plugin::Flake8Bugbear => "flake8-bugbear",
+                Plugin::Flake8Builtins => "flake8-builtins",
+                Plugin::Flake8Commas => "flake8-commas",
+                Plugin::Flake8Comprehensions => "flake8-comprehensions",
+                Plugin::Flake8Datetimez => "flake8-datetimez",
+                Plugin::Flake8Debugger => "flake8-debugger",
+                Plugin::Flake8Docstrings => "flake8-docstrings",
+                Plugin::Flake8Eradicate => "flake8-eradicate",
+                Plugin::Flake8ErrMsg => "flake8-errmsg",
+                Plugin::Flake8Executable => "flake8-executable",
+                Plugin::Flake8ImplicitStrConcat => "flake8-implicit-str-concat",
+                Plugin::Flake8ImportConventions => "flake8-import-conventions",
+                Plugin::Flake8NoPep420 => "flake8-no-pep420",
+                Plugin::Flake8Pie => "flake8-pie",
+                Plugin::Flake8Print => "flake8-print",
+                Plugin::Flake8PytestStyle => "flake8-pytest-style",
+                Plugin::Flake8Quotes => "flake8-quotes",
+                Plugin::Flake8Return => "flake8-return",
+                Plugin::Flake8Simplify => "flake8-simplify",
+                Plugin::Flake8TidyImports => "flake8-tidy-imports",
+                Plugin::Flake8TypeChecking => "flake8-type-checking",
+                Plugin::Flake8UnusedArguments => "flake8-unused-arguments",
+                Plugin::Flake8UsePathlib => "flake8-use-pathlib",
+                Plugin::McCabe => "mccabe",
+                Plugin::PEP8Naming => "pep8-naming",
+                Plugin::PandasVet => "pandas-vet",
+                Plugin::Pyupgrade => "pyupgrade",
+                Plugin::Tryceratops => "tryceratops",
+            }
+        )
+    }
+}
+
+impl From<&Plugin> for Linter {
+    fn from(plugin: &Plugin) -> Self {
+        match plugin {
+            Plugin::Flake82020 => Linter::Flake82020,
+            Plugin::Flake8Annotations => Linter::Flake8Annotations,
+            Plugin::Flake8Bandit => Linter::Flake8Bandit,
+            Plugin::Flake8BlindExcept => Linter::Flake8BlindExcept,
+            Plugin::Flake8BooleanTrap => Linter::Flake8BooleanTrap,
+            Plugin::Flake8Bugbear => Linter::Flake8Bugbear,
+            Plugin::Flake8Builtins => Linter::Flake8Builtins,
+            Plugin::Flake8Commas => Linter::Flake8Commas,
+            Plugin::Flake8Comprehensions => Linter::Flake8Comprehensions,
+            Plugin::Flake8Datetimez => Linter::Flake8Datetimez,
+            Plugin::Flake8Debugger => Linter::Flake8Debugger,
+            Plugin::Flake8Docstrings => Linter::Pydocstyle,
+            Plugin::Flake8Eradicate => Linter::Eradicate,
+            Plugin::Flake8ErrMsg => Linter::Flake8ErrMsg,
+            Plugin::Flake8Executable => Linter::Flake8Executable,
+            Plugin::Flake8ImplicitStrConcat => Linter::Flake8ImplicitStrConcat,
+            Plugin::Flake8ImportConventions => Linter::Flake8ImportConventions,
+            Plugin::Flake8NoPep420 => Linter::Flake8NoPep420,
+            Plugin::Flake8Pie => Linter::Flake8Pie,
+            Plugin::Flake8Print => Linter::Flake8Print,
+            Plugin::Flake8PytestStyle => Linter::Flake8PytestStyle,
+            Plugin::Flake8Quotes => Linter::Flake8Quotes,
+            Plugin::Flake8Return => Linter::Flake8Return,
+            Plugin::Flake8Simplify => Linter::Flake8Simplify,
+            Plugin::Flake8TidyImports => Linter::Flake8TidyImports,
+            Plugin::Flake8TypeChecking => Linter::Flake8TypeChecking,
+            Plugin::Flake8UnusedArguments => Linter::Flake8UnusedArguments,
+            Plugin::Flake8UsePathlib => Linter::Flake8UsePathlib,
+            Plugin::McCabe => Linter::McCabe,
+            Plugin::PEP8Naming => Linter::PEP8Naming,
+            Plugin::PandasVet => Linter::PandasVet,
+            Plugin::Pyupgrade => Linter::Pyupgrade,
+            Plugin::Tryceratops => Linter::Tryceratops,
+        }
+    }
+}
+
+/// Infer the enabled plugins based on user-provided options.
+///
+/// For example, if the user specified a `mypy-init-return` setting, we should
+/// infer that `flake8-annotations` is active.
+pub(crate) fn infer_plugins_from_options(flake8: &HashMap<String, Option<String>>) -> Vec<Plugin> {
+    let mut plugins = BTreeSet::new();
+    for key in flake8.keys() {
+        match key.as_str() {
+            // flake8-annotations
+            "suppress-none-returning" | "suppress_none_returning" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "suppress-dummy-args" | "suppress_dummy_args" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "allow-untyped-defs" | "allow_untyped_defs" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "allow-untyped-nested" | "allow_untyped_nested" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "mypy-init-return" | "mypy_init_return" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "dispatch-decorators" | "dispatch_decorators" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "overload-decorators" | "overload_decorators" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "allow-star-arg-any" | "allow_star_arg_any" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            // flake8-bugbear
+            "extend-immutable-calls" | "extend_immutable_calls" => {
+                plugins.insert(Plugin::Flake8Bugbear);
+            }
+            // flake8-builtins
+            "builtins-ignorelist" | "builtins_ignorelist" => {
+                plugins.insert(Plugin::Flake8Builtins);
+            }
+            // flake8-docstrings
+            "docstring-convention" | "docstring_convention" => {
+                plugins.insert(Plugin::Flake8Docstrings);
+            }
+            // flake8-eradicate
+            "eradicate-aggressive" | "eradicate_aggressive" => {
+                plugins.insert(Plugin::Flake8Eradicate);
+            }
+            "eradicate-whitelist" | "eradicate_whitelist" => {
+                plugins.insert(Plugin::Flake8Eradicate);
+            }
+            "eradicate-whitelist-extend" | "eradicate_whitelist_extend" => {
+                plugins.insert(Plugin::Flake8Eradicate);
+            }
+            // flake8-pytest-style
+            "pytest-fixture-no-parentheses" | "pytest_fixture_no_parentheses " => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            "pytest-parametrize-names-type" | "pytest_parametrize_names_type" => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            "pytest-parametrize-values-type" | "pytest_parametrize_values_type" => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            "pytest-parametrize-values-row-type" | "pytest_parametrize_values_row_type" => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            "pytest-raises-require-match-for" | "pytest_raises_require_match_for" => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            "pytest-mark-no-parentheses" | "pytest_mark_no_parentheses" => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            // flake8-quotes
+            "quotes" | "inline-quotes" | "inline_quotes" => {
+                plugins.insert(Plugin::Flake8Quotes);
+            }
+            "multiline-quotes" | "multiline_quotes" => {
+                plugins.insert(Plugin::Flake8Quotes);
+            }
+            "docstring-quotes" | "docstring_quotes" => {
+                plugins.insert(Plugin::Flake8Quotes);
+            }
+            "avoid-escape" | "avoid_escape" => {
+                plugins.insert(Plugin::Flake8Quotes);
+            }
+            // flake8-tidy-imports
+            "ban-relative-imports" | "ban_relative_imports" => {
+                plugins.insert(Plugin::Flake8TidyImports);
+            }
+            "banned-modules" | "banned_modules" => {
+                plugins.insert(Plugin::Flake8TidyImports);
+            }
+            // mccabe
+            "max-complexity" | "max_complexity" => {
+                plugins.insert(Plugin::McCabe);
+            }
+            // pep8-naming
+            "ignore-names" | "ignore_names" => {
+                plugins.insert(Plugin::PEP8Naming);
+            }
+            "classmethod-decorators" | "classmethod_decorators" => {
+                plugins.insert(Plugin::PEP8Naming);
+            }
+            "staticmethod-decorators" | "staticmethod_decorators" => {
+                plugins.insert(Plugin::PEP8Naming);
+            }
+            "max-string-length" | "max_string_length" => {
+                plugins.insert(Plugin::Flake8ErrMsg);
+            }
+            _ => {}
+        }
+    }
+    Vec::from_iter(plugins)
+}
+
+/// Infer the enabled plugins based on the referenced prefixes.
+///
+/// For example, if the user ignores `ANN101`, we should infer that
+/// `flake8-annotations` is active.
+pub(crate) fn infer_plugins_from_codes(selectors: &HashSet<RuleSelector>) -> Vec<Plugin> {
+    // Ignore cases in which we've knowingly changed rule prefixes.
+    [
+        Plugin::Flake82020,
+        Plugin::Flake8Annotations,
+        Plugin::Flake8Bandit,
+        // Plugin::Flake8BlindExcept,
+        Plugin::Flake8BooleanTrap,
+        Plugin::Flake8Bugbear,
+        Plugin::Flake8Builtins,
+        // Plugin::Flake8Commas,
+        Plugin::Flake8Comprehensions,
+        Plugin::Flake8Datetimez,
+        Plugin::Flake8Debugger,
+        Plugin::Flake8Docstrings,
+        // Plugin::Flake8Eradicate,
+        Plugin::Flake8ErrMsg,
+        Plugin::Flake8Executable,
+        Plugin::Flake8ImplicitStrConcat,
+        // Plugin::Flake8ImportConventions,
+        Plugin::Flake8NoPep420,
+        Plugin::Flake8Pie,
+        Plugin::Flake8Print,
+        Plugin::Flake8PytestStyle,
+        Plugin::Flake8Quotes,
+        Plugin::Flake8Return,
+        Plugin::Flake8Simplify,
+        // Plugin::Flake8TidyImports,
+        // Plugin::Flake8TypeChecking,
+        Plugin::Flake8UnusedArguments,
+        // Plugin::Flake8UsePathlib,
+        Plugin::McCabe,
+        Plugin::PEP8Naming,
+        Plugin::PandasVet,
+        Plugin::Tryceratops,
+    ]
+    .into_iter()
+    .filter(|plugin| {
+        for selector in selectors {
+            if selector
+                .rules(&PreviewOptions::default())
+                .any(|rule| Linter::from(plugin).rules().any(|r| r == rule))
+            {
+                return true;
+            }
+        }
+        false
+    })
+    .collect()
+}
+
+#[cfg(test)]
+mod tests {
+    use std::collections::HashMap;
+
+    use super::{infer_plugins_from_options, Plugin};
+
+    #[test]
+    fn it_infers_plugins() {
+        let actual = infer_plugins_from_options(&HashMap::from([(
+            "inline-quotes".to_string(),
+            Some("single".to_string()),
+        )]));
+        let expected = vec![Plugin::Flake8Quotes];
+        assert_eq!(actual, expected);
+
+        let actual = infer_plugins_from_options(&HashMap::from([(
+            "staticmethod-decorators".to_string(),
+            Some("[]".to_string()),
+        )]));
+        let expected = vec![Plugin::PEP8Naming];
+        assert_eq!(actual, expected);
+    }
+}

crates/flake8_to_ruff/src/pyproject.rs

@@ -0,0 +1,26 @@
+use std::path::Path;
+
+use anyhow::Result;
+use serde::{Deserialize, Serialize};
+
+use super::black::Black;
+use super::isort::Isort;
+use super::pep621::Project;
+
+#[derive(Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub(crate) struct Tools {
+    pub(crate) black: Option<Black>,
+    pub(crate) isort: Option<Isort>,
+}
+
+#[derive(Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub(crate) struct Pyproject {
+    pub(crate) tool: Option<Tools>,
+    pub(crate) project: Option<Project>,
+}
+
+pub(crate) fn parse<P: AsRef<Path>>(path: P) -> Result<Pyproject> {
+    let contents = std::fs::read_to_string(path)?;
+    let pyproject = toml::from_str::<Pyproject>(&contents)?;
+    Ok(pyproject)
+}

crates/ruff/Cargo.toml

@@ -1,91 +0,0 @@
-[package]
-name = "ruff"
-version = "0.11.13"
-publish = true
-authors = { workspace = true }
-edition = { workspace = true }
-rust-version = { workspace = true }
-homepage = { workspace = true }
-documentation = { workspace = true }
-repository = { workspace = true }
-license = { workspace = true }
-readme = "../../README.md"
-default-run = "ruff"
-
-[dependencies]
-ruff_cache = { workspace = true }
-ruff_db = { workspace = true, default-features = false, features = ["os"] }
-ruff_diagnostics = { workspace = true }
-ruff_graph = { workspace = true, features = ["serde", "clap"] }
-ruff_linter = { workspace = true, features = ["clap"] }
-ruff_macros = { workspace = true }
-ruff_notebook = { workspace = true }
-ruff_options_metadata = { workspace = true, features = ["serde"] }
-ruff_python_ast = { workspace = true }
-ruff_python_formatter = { workspace = true }
-ruff_python_parser = { workspace = true }
-ruff_server = { workspace = true }
-ruff_source_file = { workspace = true }
-ruff_text_size = { workspace = true }
-ruff_workspace = { workspace = true }
-
-anyhow = { workspace = true }
-argfile = { workspace = true }
-bincode = { workspace = true, features = ["serde"] }
-bitflags = { workspace = true }
-cachedir = { workspace = true }
-clap = { workspace = true, features = ["derive", "env", "wrap_help"] }
-clap_complete_command = { workspace = true }
-clearscreen = { workspace = true }
-colored = { workspace = true }
-filetime = { workspace = true }
-globwalk = { workspace = true }
-ignore = { workspace = true }
-is-macro = { workspace = true }
-itertools = { workspace = true }
-jiff = { workspace = true }
-log = { workspace = true }
-notify = { workspace = true }
-path-absolutize = { workspace = true, features = ["once_cell_cache"] }
-rayon = { workspace = true }
-regex = { workspace = true }
-rustc-hash = { workspace = true }
-serde = { workspace = true }
-serde_json = { workspace = true }
-shellexpand = { workspace = true }
-strum = { workspace = true, features = [] }
-tempfile = { workspace = true }
-thiserror = { workspace = true }
-toml = { workspace = true }
-tracing = { workspace = true, features = ["log"] }
-walkdir = { workspace = true }
-wild = { workspace = true }
-
-[dev-dependencies]
-# Enable test rules during development
-ruff_linter = { workspace = true, features = ["clap", "test-rules"] }
-
-assert_fs = { workspace = true }
-# Avoid writing colored snapshots when running tests from the terminal
-colored = { workspace = true, features = ["no-color"] }
-indoc = { workspace = true }
-insta = { workspace = true, features = ["filters", "json"] }
-insta-cmd = { workspace = true }
-tempfile = { workspace = true }
-test-case = { workspace = true }
-
-[package.metadata.cargo-shear]
-# Used via macro expansion.
-ignored = ["jiff"]
-
-[package.metadata.dist]
-dist = true
-
-[target.'cfg(target_os = "windows")'.dependencies]
-mimalloc = { workspace = true }
-
-[target.'cfg(all(not(target_os = "windows"), not(target_os = "openbsd"), not(target_os = "aix"), not(target_os = "android"), any(target_arch = "x86_64", target_arch = "aarch64", target_arch = "powerpc64")))'.dependencies]
-tikv-jemallocator = { workspace = true }
-
-[lints]
-workspace = true

crates/ruff/build.rs

@@ -1,105 +0,0 @@
-use std::{
-    fs,
-    path::{Path, PathBuf},
-    process::Command,
-};
-
-fn main() {
-    // The workspace root directory is not available without walking up the tree
-    // https://github.com/rust-lang/cargo/issues/3946
-    let workspace_root = Path::new(&std::env::var("CARGO_MANIFEST_DIR").unwrap())
-        .join("..")
-        .join("..");
-
-    commit_info(&workspace_root);
-
-    let target = std::env::var("TARGET").unwrap();
-    println!("cargo::rustc-env=RUST_HOST_TARGET={target}");
-}
-
-fn commit_info(workspace_root: &Path) {
-    // If not in a git repository, do not attempt to retrieve commit information
-    let git_dir = workspace_root.join(".git");
-    if !git_dir.exists() {
-        return;
-    }
-
-    if let Some(git_head_path) = git_head(&git_dir) {
-        println!("cargo:rerun-if-changed={}", git_head_path.display());
-
-        let git_head_contents = fs::read_to_string(git_head_path);
-        if let Ok(git_head_contents) = git_head_contents {
-            // The contents are either a commit or a reference in the following formats
-            // - "<commit>" when the head is detached
-            // - "ref <ref>" when working on a branch
-            // If a commit, checking if the HEAD file has changed is sufficient
-            // If a ref, we need to add the head file for that ref to rebuild on commit
-            let mut git_ref_parts = git_head_contents.split_whitespace();
-            git_ref_parts.next();
-            if let Some(git_ref) = git_ref_parts.next() {
-                let git_ref_path = git_dir.join(git_ref);
-                println!("cargo:rerun-if-changed={}", git_ref_path.display());
-            }
-        }
-    }
-
-    let output = match Command::new("git")
-        .arg("log")
-        .arg("-1")
-        .arg("--date=short")
-        .arg("--abbrev=9")
-        .arg("--format=%H %h %cd %(describe:tags)")
-        .output()
-    {
-        Ok(output) if output.status.success() => output,
-        _ => return,
-    };
-    let stdout = String::from_utf8(output.stdout).unwrap();
-    let mut parts = stdout.split_whitespace();
-    let mut next = || parts.next().unwrap();
-    println!("cargo::rustc-env=RUFF_COMMIT_HASH={}", next());
-    println!("cargo::rustc-env=RUFF_COMMIT_SHORT_HASH={}", next());
-    println!("cargo::rustc-env=RUFF_COMMIT_DATE={}", next());
-
-    // Describe can fail for some commits
-    // https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emdescribeoptionsem
-    if let Some(describe) = parts.next() {
-        let mut describe_parts = describe.split('-');
-        println!(
-            "cargo::rustc-env=RUFF_LAST_TAG={}",
-            describe_parts.next().unwrap()
-        );
-        // If this is the tagged commit, this component will be missing
-        println!(
-            "cargo::rustc-env=RUFF_LAST_TAG_DISTANCE={}",
-            describe_parts.next().unwrap_or("0")
-        );
-    }
-}
-
-fn git_head(git_dir: &Path) -> Option<PathBuf> {
-    // The typical case is a standard git repository.
-    let git_head_path = git_dir.join("HEAD");
-    if git_head_path.exists() {
-        return Some(git_head_path);
-    }
-    if !git_dir.is_file() {
-        return None;
-    }
-    // If `.git/HEAD` doesn't exist and `.git` is actually a file,
-    // then let's try to attempt to read it as a worktree. If it's
-    // a worktree, then its contents will look like this, e.g.:
-    //
-    //     gitdir: /home/andrew/astral/uv/main/.git/worktrees/pr2
-    //
-    // And the HEAD file we want to watch will be at:
-    //
-    //     /home/andrew/astral/uv/main/.git/worktrees/pr2/HEAD
-    let contents = fs::read_to_string(git_dir).ok()?;
-    let (label, worktree_path) = contents.split_once(':')?;
-    if label != "gitdir" {
-        return None;
-    }
-    let worktree_path = worktree_path.trim();
-    Some(PathBuf::from(worktree_path))
-}

crates/ruff/resources/test/fixtures/include-test/nested-project/pyproject.toml

@@ -1,2 +0,0 @@
-[tool.ruff]
-select = []

crates/ruff/resources/test/fixtures/include-test/pyproject.toml

@@ -1,2 +0,0 @@
-[tool.ruff]
-include = ["a.py", "subdirectory/c.py"]

crates/ruff/resources/test/fixtures/trailing_semicolon.ipynb

@@ -1,413 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "id": "4f8ce941-1492-4d4e-8ab5-70d733fe891a",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "%config ZMQInteractiveShell.ast_node_interactivity=\"last_expr_or_assign\""
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 2,
-   "id": "721ec705-0c65-4bfb-9809-7ed8bc534186",
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "1"
-      ]
-     },
-     "execution_count": 2,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "# Assignment statement without a semicolon\n",
-    "x = 1"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 3,
-   "id": "de50e495-17e5-41cc-94bd-565757555d7e",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Assignment statement with a semicolon\n",
-    "x = 1;\n",
-    "x = 1;"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 4,
-   "id": "39e31201-23da-44eb-8684-41bba3663991",
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "2"
-      ]
-     },
-     "execution_count": 4,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "# Augmented assignment without a semicolon\n",
-    "x += 1"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 5,
-   "id": "6b73d3dd-c73a-4697-9e97-e109a6c1fbab",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Augmented assignment without a semicolon\n",
-    "x += 1;\n",
-    "x += 1;  # comment\n",
-    "# comment"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 6,
-   "id": "2a3e5b86-aa5b-46ba-b9c6-0386d876f58c",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Multiple assignment without a semicolon\n",
-    "x = y = 1"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 7,
-   "id": "07f89e51-9357-4cfb-8fc5-76fb75e35949",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Multiple assignment with a semicolon\n",
-    "x = y = 1;\n",
-    "x = y = 1;"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 8,
-   "id": "c22b539d-473e-48f8-a236-625e58c47a00",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Tuple unpacking without a semicolon\n",
-    "x, y = 1, 2"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 9,
-   "id": "12c87940-a0d5-403b-a81c-7507eb06dc7e",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Tuple unpacking with a semicolon (irrelevant)\n",
-    "x, y = 1, 2;\n",
-    "x, y = 1, 2;  # comment\n",
-    "# comment"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 10,
-   "id": "5a768c76-6bc4-470c-b37e-8cc14bc6caf4",
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "1"
-      ]
-     },
-     "execution_count": 10,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "# Annotated assignment statement without a semicolon\n",
-    "x: int = 1"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 11,
-   "id": "21bfda82-1a9a-4ba1-9078-74ac480804b5",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Annotated assignment statement without a semicolon\n",
-    "x: int = 1;\n",
-    "x: int = 1;  # comment\n",
-    "# comment"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 12,
-   "id": "09929999-ff29-4d10-ad2b-e665af15812d",
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "1"
-      ]
-     },
-     "execution_count": 12,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "# Assignment expression without a semicolon\n",
-    "(x := 1)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 13,
-   "id": "32a83217-1bad-4f61-855e-ffcdb119c763",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Assignment expression with a semicolon\n",
-    "(x := 1);\n",
-    "(x := 1);  # comment\n",
-    "# comment"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 14,
-   "id": "61b81865-277e-4964-b03e-eb78f1f318eb",
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "1"
-      ]
-     },
-     "execution_count": 14,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "x = 1\n",
-    "# Expression without a semicolon\n",
-    "x"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 15,
-   "id": "974c29be-67e1-4000-95fa-6ca118a63bad",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "x = 1\n",
-    "# Expression with a semicolon\n",
-    "x;"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 16,
-   "id": "cfeb1757-46d6-4f13-969f-a283b6d0304f",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "class Point:\n",
-    "    def __init__(self, x, y):\n",
-    "        self.x = x\n",
-    "        self.y = y\n",
-    "\n",
-    "\n",
-    "p = Point(0, 0);"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 17,
-   "id": "2ee7f1a5-ccfe-4004-bfa4-ef834a58da97",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Assignment statement where the left is an attribute access doesn't\n",
-    "# print the value.\n",
-    "p.x = 1;"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 18,
-   "id": "3e49370a-048b-474d-aa0a-3d1d4a73ad37",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "data = {}\n",
-    "\n",
-    "# Neither does the subscript node\n",
-    "data[\"foo\"] = 1;"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 19,
-   "id": "d594bdd3-eaa9-41ef-8cda-cf01bc273b2d",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "if (x := 1):\n",
-    "    # It should be the top level statement\n",
-    "    x"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 20,
-   "id": "e532f0cf-80c7-42b7-8226-6002fcf74fb6",
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "1"
-      ]
-     },
-     "execution_count": 20,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "# Parentheses with comments\n",
-    "(\n",
-    "    x := 1  # comment\n",
-    ")  # comment"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 21,
-   "id": "473c5d62-871b-46ed-8a34-27095243f462",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Parentheses with comments\n",
-    "(\n",
-    "    x := 1  # comment\n",
-    ");  # comment"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 22,
-   "id": "8c3c2361-f49f-45fe-bbe3-7e27410a8a86",
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "'Hello world!'"
-      ]
-     },
-     "execution_count": 22,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "\"\"\"Hello world!\"\"\""
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 23,
-   "id": "23dbe9b5-3f68-4890-ab2d-ab0dbfd0712a",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "\"\"\"Hello world!\"\"\";  # comment\n",
-    "# comment"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 24,
-   "id": "3ce33108-d95d-4c70-83d1-0d4fd36a2951",
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "'x = 1'"
-      ]
-     },
-     "execution_count": 24,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "x = 1\n",
-    "f\"x = {x}\""
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 25,
-   "id": "654a4a67-de43-4684-824a-9451c67db48f",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "x = 1\n",
-    "f\"x = {x}\";\n",
-    "f\"x = {x}\";  # comment\n",
-    "# comment"
-   ]
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python (ruff-playground)",
-   "language": "python",
-   "name": "ruff-playground"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.11.3"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 5
-}

crates/ruff/src/commands/analyze_graph.rs

@@ -1,262 +0,0 @@
-use crate::args::{AnalyzeGraphArgs, ConfigArguments};
-use crate::resolve::resolve;
-use crate::{ExitStatus, resolve_default_files};
-use anyhow::Result;
-use log::{debug, warn};
-use path_absolutize::CWD;
-use ruff_db::system::{SystemPath, SystemPathBuf};
-use ruff_graph::{Direction, ImportMap, ModuleDb, ModuleImports};
-use ruff_linter::package::PackageRoot;
-use ruff_linter::{warn_user, warn_user_once};
-use ruff_python_ast::{PySourceType, SourceType};
-use ruff_workspace::resolver::{ResolvedFile, match_exclusion, python_files_in_path};
-use rustc_hash::FxHashMap;
-use std::io::Write;
-use std::path::{Path, PathBuf};
-use std::sync::{Arc, Mutex};
-
-/// Generate an import map.
-pub(crate) fn analyze_graph(
-    args: AnalyzeGraphArgs,
-    config_arguments: &ConfigArguments,
-) -> Result<ExitStatus> {
-    // Construct the "default" settings. These are used when no `pyproject.toml`
-    // files are present, or files are injected from outside the hierarchy.
-    let pyproject_config = resolve(config_arguments, None)?;
-    if pyproject_config.settings.analyze.preview.is_disabled() {
-        warn_user!("`ruff analyze graph` is experimental and may change without warning");
-    }
-
-    // Write all paths relative to the current working directory.
-    let root =
-        SystemPathBuf::from_path_buf(CWD.clone()).expect("Expected a UTF-8 working directory");
-
-    // Find all Python files.
-    let files = resolve_default_files(args.files, false);
-    let (paths, resolver) = python_files_in_path(&files, &pyproject_config, config_arguments)?;
-
-    if paths.is_empty() {
-        warn_user_once!("No Python files found under the given path(s)");
-        return Ok(ExitStatus::Success);
-    }
-
-    // Resolve all package roots.
-    let package_roots = resolver
-        .package_roots(
-            &paths
-                .iter()
-                .flatten()
-                .map(ResolvedFile::path)
-                .collect::<Vec<_>>(),
-        )
-        .into_iter()
-        .map(|(path, package)| {
-            (
-                path.to_path_buf(),
-                package.map(PackageRoot::path).map(Path::to_path_buf),
-            )
-        })
-        .collect::<FxHashMap<_, _>>();
-
-    // Create a database from the source roots.
-    let src_roots = package_roots
-        .values()
-        .filter_map(|package| package.as_deref())
-        .filter_map(|package| package.parent())
-        .map(Path::to_path_buf)
-        .filter_map(|path| SystemPathBuf::from_path_buf(path).ok())
-        .collect();
-
-    let db = ModuleDb::from_src_roots(
-        src_roots,
-        pyproject_config
-            .settings
-            .analyze
-            .target_version
-            .as_tuple()
-            .into(),
-        args.python
-            .and_then(|python| SystemPathBuf::from_path_buf(python).ok()),
-    )?;
-
-    let imports = {
-        // Create a cache for resolved globs.
-        let glob_resolver = Arc::new(Mutex::new(GlobResolver::default()));
-
-        // Collect and resolve the imports for each file.
-        let result = Arc::new(Mutex::new(Vec::new()));
-        let inner_result = Arc::clone(&result);
-        let db = db.clone();
-
-        rayon::scope(move |scope| {
-            for resolved_file in paths {
-                let Ok(resolved_file) = resolved_file else {
-                    continue;
-                };
-
-                let path = resolved_file.path();
-                let package = path
-                    .parent()
-                    .and_then(|parent| package_roots.get(parent))
-                    .and_then(Clone::clone);
-
-                // Resolve the per-file settings.
-                let settings = resolver.resolve(path);
-                let string_imports = settings.analyze.detect_string_imports;
-                let include_dependencies = settings.analyze.include_dependencies.get(path).cloned();
-
-                // Skip excluded files.
-                if (settings.file_resolver.force_exclude || !resolved_file.is_root())
-                    && match_exclusion(
-                        resolved_file.path(),
-                        resolved_file.file_name(),
-                        &settings.analyze.exclude,
-                    )
-                {
-                    continue;
-                }
-
-                // Ignore non-Python files.
-                let source_type = match settings.analyze.extension.get(path) {
-                    None => match SourceType::from(&path) {
-                        SourceType::Python(source_type) => source_type,
-                        SourceType::Toml(_) => {
-                            debug!("Ignoring TOML file: {}", path.display());
-                            continue;
-                        }
-                    },
-                    Some(language) => PySourceType::from(language),
-                };
-                if matches!(source_type, PySourceType::Ipynb) {
-                    debug!("Ignoring Jupyter notebook: {}", path.display());
-                    continue;
-                }
-
-                // Convert to system paths.
-                let Ok(package) = package.map(SystemPathBuf::from_path_buf).transpose() else {
-                    warn!("Failed to convert package to system path");
-                    continue;
-                };
-                let Ok(path) = SystemPathBuf::from_path_buf(resolved_file.into_path()) else {
-                    warn!("Failed to convert path to system path");
-                    continue;
-                };
-
-                let db = db.clone();
-                let glob_resolver = glob_resolver.clone();
-                let root = root.clone();
-                let result = inner_result.clone();
-                scope.spawn(move |_| {
-                    // Identify any imports via static analysis.
-                    let mut imports =
-                        ModuleImports::detect(&db, &path, package.as_deref(), string_imports)
-                            .unwrap_or_else(|err| {
-                                warn!("Failed to generate import map for {path}: {err}");
-                                ModuleImports::default()
-                            });
-
-                    debug!("Discovered {} imports for {}", imports.len(), path);
-
-                    // Append any imports that were statically defined in the configuration.
-                    if let Some((root, globs)) = include_dependencies {
-                        let mut glob_resolver = glob_resolver.lock().unwrap();
-                        imports.extend(glob_resolver.resolve(root, globs));
-                    }
-
-                    // Convert the path (and imports) to be relative to the working directory.
-                    let path = path
-                        .strip_prefix(&root)
-                        .map(SystemPath::to_path_buf)
-                        .unwrap_or(path);
-                    let imports = imports.relative_to(&root);
-
-                    result.lock().unwrap().push((path, imports));
-                });
-            }
-        });
-
-        // Collect the results.
-        Arc::into_inner(result).unwrap().into_inner()?
-    };
-
-    // Generate the import map.
-    let import_map = match args.direction {
-        Direction::Dependencies => ImportMap::dependencies(imports),
-        Direction::Dependents => ImportMap::dependents(imports),
-    };
-
-    // Print to JSON.
-    writeln!(
-        std::io::stdout(),
-        "{}",
-        serde_json::to_string_pretty(&import_map)?
-    )?;
-
-    std::mem::forget(db);
-
-    Ok(ExitStatus::Success)
-}
-
-/// A resolver for glob sets.
-#[derive(Default, Debug)]
-struct GlobResolver {
-    cache: GlobCache,
-}
-
-impl GlobResolver {
-    /// Resolve a set of globs, anchored at a given root.
-    fn resolve(&mut self, root: PathBuf, globs: Vec<String>) -> Vec<SystemPathBuf> {
-        if let Some(cached) = self.cache.get(&root, &globs) {
-            return cached.clone();
-        }
-
-        let walker = match globwalk::GlobWalkerBuilder::from_patterns(&root, &globs)
-            .file_type(globwalk::FileType::FILE)
-            .build()
-        {
-            Ok(walker) => walker,
-            Err(err) => {
-                warn!("Failed to read glob walker: {err}");
-                return Vec::new();
-            }
-        };
-
-        let mut paths = Vec::new();
-        for entry in walker {
-            let entry = match entry {
-                Ok(entry) => entry,
-                Err(err) => {
-                    warn!("Failed to read glob entry: {err}");
-                    continue;
-                }
-            };
-            let path = match SystemPathBuf::from_path_buf(entry.into_path()) {
-                Ok(path) => path,
-                Err(err) => {
-                    warn!("Failed to convert path to system path: {}", err.display());
-                    continue;
-                }
-            };
-            paths.push(path);
-        }
-
-        self.cache.insert(root, globs, paths.clone());
-        paths
-    }
-}
-
-/// A cache for resolved globs.
-#[derive(Default, Debug)]
-struct GlobCache(FxHashMap<PathBuf, FxHashMap<Vec<String>, Vec<SystemPathBuf>>>);
-
-impl GlobCache {
-    /// Insert a resolved glob.
-    fn insert(&mut self, root: PathBuf, globs: Vec<String>, paths: Vec<SystemPathBuf>) {
-        self.0.entry(root).or_default().insert(globs, paths);
-    }
-
-    /// Get a resolved glob.
-    fn get(&self, root: &Path, globs: &[String]) -> Option<&Vec<SystemPathBuf>> {
-        self.0.get(root).and_then(|map| map.get(globs))
-    }
-}

crates/ruff/src/commands/check.rs

@@ -1,304 +0,0 @@
-use std::fmt::Write;
-use std::io;
-use std::path::{Path, PathBuf};
-use std::time::Instant;
-
-use anyhow::Result;
-use colored::Colorize;
-use ignore::Error;
-use log::{debug, error, warn};
-#[cfg(not(target_family = "wasm"))]
-use rayon::prelude::*;
-use rustc_hash::FxHashMap;
-
-use ruff_db::panic::catch_unwind;
-use ruff_linter::OldDiagnostic;
-use ruff_linter::message::Message;
-use ruff_linter::package::PackageRoot;
-use ruff_linter::registry::Rule;
-use ruff_linter::settings::types::UnsafeFixes;
-use ruff_linter::settings::{LinterSettings, flags};
-use ruff_linter::{IOError, fs, warn_user_once};
-use ruff_source_file::SourceFileBuilder;
-use ruff_text_size::TextRange;
-use ruff_workspace::resolver::{
-    PyprojectConfig, ResolvedFile, match_exclusion, python_files_in_path,
-};
-
-use crate::args::ConfigArguments;
-use crate::cache::{Cache, PackageCacheMap, PackageCaches};
-use crate::diagnostics::Diagnostics;
-
-/// Run the linter over a collection of files.
-pub(crate) fn check(
-    files: &[PathBuf],
-    pyproject_config: &PyprojectConfig,
-    config_arguments: &ConfigArguments,
-    cache: flags::Cache,
-    noqa: flags::Noqa,
-    fix_mode: flags::FixMode,
-    unsafe_fixes: UnsafeFixes,
-) -> Result<Diagnostics> {
-    // Collect all the Python files to check.
-    let start = Instant::now();
-    let (paths, resolver) = python_files_in_path(files, pyproject_config, config_arguments)?;
-    debug!("Identified files to lint in: {:?}", start.elapsed());
-
-    if paths.is_empty() {
-        warn_user_once!("No Python files found under the given path(s)");
-        return Ok(Diagnostics::default());
-    }
-
-    // Discover the package root for each Python file.
-    let package_roots = resolver.package_roots(
-        &paths
-            .iter()
-            .flatten()
-            .map(ResolvedFile::path)
-            .collect::<Vec<_>>(),
-    );
-
-    // Load the caches.
-    let caches = if cache.is_enabled() {
-        Some(PackageCacheMap::init(&package_roots, &resolver))
-    } else {
-        None
-    };
-
-    let start = Instant::now();
-    let diagnostics_per_file = paths.par_iter().filter_map(|resolved_file| {
-        let result = match resolved_file {
-            Ok(resolved_file) => {
-                let path = resolved_file.path();
-                let package = path
-                    .parent()
-                    .and_then(|parent| package_roots.get(parent))
-                    .and_then(|package| *package);
-
-                let settings = resolver.resolve(path);
-
-                if (settings.file_resolver.force_exclude || !resolved_file.is_root())
-                    && match_exclusion(
-                        resolved_file.path(),
-                        resolved_file.file_name(),
-                        &settings.linter.exclude,
-                    )
-                {
-                    return None;
-                }
-
-                let cache_root = package
-                    .map(PackageRoot::path)
-                    .unwrap_or_else(|| path.parent().unwrap_or(path));
-                let cache = caches.get(cache_root);
-
-                lint_path(
-                    path,
-                    package,
-                    &settings.linter,
-                    cache,
-                    noqa,
-                    fix_mode,
-                    unsafe_fixes,
-                )
-                .map_err(|e| {
-                    (Some(path.to_path_buf()), {
-                        let mut error = e.to_string();
-                        for cause in e.chain() {
-                            write!(&mut error, "\n  Cause: {cause}").unwrap();
-                        }
-                        error
-                    })
-                })
-            }
-            Err(e) => Err((
-                if let Error::WithPath { path, .. } = e {
-                    Some(path.clone())
-                } else {
-                    None
-                },
-                e.io_error()
-                    .map_or_else(|| e.to_string(), io::Error::to_string),
-            )),
-        };
-
-        Some(result.unwrap_or_else(|(path, message)| {
-            if let Some(path) = &path {
-                let settings = resolver.resolve(path);
-                if settings.linter.rules.enabled(Rule::IOError) {
-                    let dummy =
-                        SourceFileBuilder::new(path.to_string_lossy().as_ref(), "").finish();
-
-                    Diagnostics::new(
-                        vec![Message::from_diagnostic(
-                            OldDiagnostic::new(IOError { message }, TextRange::default(), &dummy),
-                            None,
-                        )],
-                        FxHashMap::default(),
-                    )
-                } else {
-                    warn!(
-                        "{}{}{} {message}",
-                        "Failed to lint ".bold(),
-                        fs::relativize_path(path).bold(),
-                        ":".bold()
-                    );
-                    Diagnostics::default()
-                }
-            } else {
-                warn!("{} {message}", "Encountered error:".bold());
-                Diagnostics::default()
-            }
-        }))
-    });
-
-    // Aggregate the diagnostics of all checked files and count the checked files.
-    // This can't be a regular for loop because we use `par_iter`.
-    let (mut all_diagnostics, checked_files) = diagnostics_per_file
-        .fold(
-            || (Diagnostics::default(), 0u64),
-            |(all_diagnostics, checked_files), file_diagnostics| {
-                (all_diagnostics + file_diagnostics, checked_files + 1)
-            },
-        )
-        .reduce(
-            || (Diagnostics::default(), 0u64),
-            |a, b| (a.0 + b.0, a.1 + b.1),
-        );
-
-    all_diagnostics.messages.sort();
-
-    // Store the caches.
-    caches.persist()?;
-
-    let duration = start.elapsed();
-    debug!("Checked {checked_files:?} files in: {duration:?}");
-
-    Ok(all_diagnostics)
-}
-
-/// Wraps [`lint_path`](crate::diagnostics::lint_path) in a [`catch_unwind`](std::panic::catch_unwind) and emits
-/// a diagnostic if the linting the file panics.
-fn lint_path(
-    path: &Path,
-    package: Option<PackageRoot<'_>>,
-    settings: &LinterSettings,
-    cache: Option<&Cache>,
-    noqa: flags::Noqa,
-    fix_mode: flags::FixMode,
-    unsafe_fixes: UnsafeFixes,
-) -> Result<Diagnostics> {
-    let result = catch_unwind(|| {
-        crate::diagnostics::lint_path(path, package, settings, cache, noqa, fix_mode, unsafe_fixes)
-    });
-
-    match result {
-        Ok(inner) => inner,
-        Err(error) => {
-            let message = r"This indicates a bug in Ruff. If you could open an issue at:
-
-    https://github.com/astral-sh/ruff/issues/new?title=%5BLinter%20panic%5D
-
-...with the relevant file contents, the `pyproject.toml` settings, and the following stack trace, we'd be very appreciative!
-";
-
-            error!(
-                "{}{}{} {message}\n{error}",
-                "Panicked while linting ".bold(),
-                fs::relativize_path(path).bold(),
-                ":".bold()
-            );
-
-            Ok(Diagnostics::default())
-        }
-    }
-}
-
-#[cfg(test)]
-#[cfg(unix)]
-mod test {
-    use std::fs;
-    use std::os::unix::fs::OpenOptionsExt;
-
-    use anyhow::Result;
-    use rustc_hash::FxHashMap;
-    use tempfile::TempDir;
-
-    use ruff_linter::message::{Emitter, EmitterContext, TextEmitter};
-    use ruff_linter::registry::Rule;
-    use ruff_linter::settings::types::UnsafeFixes;
-    use ruff_linter::settings::{LinterSettings, flags};
-    use ruff_workspace::Settings;
-    use ruff_workspace::resolver::{PyprojectConfig, PyprojectDiscoveryStrategy};
-
-    use crate::args::ConfigArguments;
-
-    use super::check;
-
-    /// We check that regular python files, pyproject.toml and jupyter notebooks all handle io
-    /// errors gracefully
-    #[test]
-    fn unreadable_files() -> Result<()> {
-        let path = "E902.py";
-        let rule_code = Rule::IOError;
-
-        // Create inaccessible files
-        let tempdir = TempDir::new()?;
-        let pyproject_toml = tempdir.path().join("pyproject.toml");
-        let python_file = tempdir.path().join("code.py");
-        let notebook = tempdir.path().join("notebook.ipynb");
-        for file in [&pyproject_toml, &python_file, &notebook] {
-            fs::OpenOptions::new()
-                .create(true)
-                .truncate(true)
-                .write(true)
-                .mode(0o000)
-                .open(file)?;
-        }
-
-        // Configure
-        let snapshot = format!("{}_{}", rule_code.noqa_code(), path);
-        // invalid pyproject.toml is not active by default
-        let settings = Settings {
-            linter: LinterSettings::for_rules(vec![rule_code, Rule::InvalidPyprojectToml]),
-            ..Settings::default()
-        };
-        let pyproject_config =
-            PyprojectConfig::new(PyprojectDiscoveryStrategy::Fixed, settings, None);
-
-        // Run
-        let diagnostics = check(
-            &[tempdir.path().to_path_buf()],
-            &pyproject_config,
-            &ConfigArguments::default(),
-            flags::Cache::Disabled,
-            flags::Noqa::Disabled,
-            flags::FixMode::Generate,
-            UnsafeFixes::Enabled,
-        )
-        .unwrap();
-        let mut output = Vec::new();
-
-        TextEmitter::default()
-            .with_show_fix_status(true)
-            .emit(
-                &mut output,
-                &diagnostics.messages,
-                &EmitterContext::new(&FxHashMap::default()),
-            )
-            .unwrap();
-
-        let messages = String::from_utf8(output).unwrap();
-
-        insta::with_settings!({
-            omit_expression => true,
-            filters => vec![
-                // The tempdir is always different (and platform dependent)
-                (tempdir.path().to_str().unwrap(), "/home/ferris/project"),
-            ]
-        }, {
-            insta::assert_snapshot!(snapshot, messages);
-        });
-        Ok(())
-    }
-}

crates/ruff/src/commands/check_stdin.rs

@@ -1,57 +0,0 @@
-use std::path::Path;
-
-use anyhow::Result;
-use ruff_linter::package::PackageRoot;
-use ruff_linter::packaging;
-use ruff_linter::settings::flags;
-use ruff_workspace::resolver::{PyprojectConfig, Resolver, match_exclusion, python_file_at_path};
-
-use crate::args::ConfigArguments;
-use crate::diagnostics::{Diagnostics, lint_stdin};
-use crate::stdin::{parrot_stdin, read_from_stdin};
-
-/// Run the linter over a single file, read from `stdin`.
-pub(crate) fn check_stdin(
-    filename: Option<&Path>,
-    pyproject_config: &PyprojectConfig,
-    overrides: &ConfigArguments,
-    noqa: flags::Noqa,
-    fix_mode: flags::FixMode,
-) -> Result<Diagnostics> {
-    let mut resolver = Resolver::new(pyproject_config);
-
-    if resolver.force_exclude() {
-        if let Some(filename) = filename {
-            if !python_file_at_path(filename, &mut resolver, overrides)? {
-                if fix_mode.is_apply() {
-                    parrot_stdin()?;
-                }
-                return Ok(Diagnostics::default());
-            }
-
-            if filename.file_name().is_some_and(|name| {
-                match_exclusion(filename, name, &resolver.base_settings().linter.exclude)
-            }) {
-                if fix_mode.is_apply() {
-                    parrot_stdin()?;
-                }
-                return Ok(Diagnostics::default());
-            }
-        }
-    }
-    let stdin = read_from_stdin()?;
-    let package_root = filename.and_then(Path::parent).and_then(|path| {
-        packaging::detect_package_root(path, &resolver.base_settings().linter.namespace_packages)
-            .map(PackageRoot::root)
-    });
-    let mut diagnostics = lint_stdin(
-        filename,
-        package_root,
-        stdin,
-        resolver.base_settings(),
-        noqa,
-        fix_mode,
-    )?;
-    diagnostics.messages.sort_unstable();
-    Ok(diagnostics)
-}

crates/ruff/src/commands/completions/config.rs

@@ -1,156 +0,0 @@
-use clap::builder::{PossibleValue, TypedValueParser, ValueParserFactory};
-use itertools::Itertools;
-use std::str::FromStr;
-
-use ruff_options_metadata::{OptionField, OptionSet, OptionsMetadata, Visit};
-use ruff_workspace::options::Options;
-
-#[derive(Default)]
-struct CollectOptionsVisitor {
-    values: Vec<(String, String)>,
-    parents: Vec<String>,
-}
-
-impl IntoIterator for CollectOptionsVisitor {
-    type Item = (String, String);
-    type IntoIter = std::vec::IntoIter<Self::Item>;
-
-    fn into_iter(self) -> Self::IntoIter {
-        self.values.into_iter()
-    }
-}
-
-impl Visit for CollectOptionsVisitor {
-    fn record_set(&mut self, name: &str, group: OptionSet) {
-        let fully_qualified_name = self
-            .parents
-            .iter()
-            .map(String::as_str)
-            .chain(std::iter::once(name))
-            .collect::<Vec<_>>()
-            .join(".");
-
-        // Only add the set to completion list if it has it's own documentation.
-        self.values.push((
-            fully_qualified_name,
-            group.documentation().unwrap_or("").to_owned(),
-        ));
-
-        self.parents.push(name.to_owned());
-        group.record(self);
-        self.parents.pop();
-    }
-
-    fn record_field(&mut self, name: &str, field: OptionField) {
-        let fqn = self
-            .parents
-            .iter()
-            .map(String::as_str)
-            .chain(std::iter::once(name))
-            .collect::<Vec<_>>()
-            .join(".");
-
-        self.values.push((fqn, field.doc.to_owned()));
-    }
-}
-
-/// Opaque type used solely to enable tab completions
-/// for `ruff option [OPTION]` command.
-#[derive(Clone, Debug)]
-pub struct OptionString(String);
-
-impl From<String> for OptionString {
-    fn from(s: String) -> Self {
-        OptionString(s)
-    }
-}
-
-impl From<OptionString> for String {
-    fn from(value: OptionString) -> Self {
-        value.0
-    }
-}
-
-impl From<&str> for OptionString {
-    fn from(s: &str) -> Self {
-        OptionString(s.to_string())
-    }
-}
-
-impl std::ops::Deref for OptionString {
-    type Target = str;
-
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl FromStr for OptionString {
-    type Err = ();
-
-    fn from_str(s: &str) -> Result<Self, Self::Err> {
-        Options::metadata()
-            .has(s)
-            .then(|| OptionString(s.to_owned()))
-            .ok_or(())
-    }
-}
-
-#[derive(Clone)]
-pub struct OptionStringParser;
-
-impl ValueParserFactory for OptionString {
-    type Parser = OptionStringParser;
-
-    fn value_parser() -> Self::Parser {
-        OptionStringParser
-    }
-}
-
-impl TypedValueParser for OptionStringParser {
-    type Value = OptionString;
-
-    fn parse_ref(
-        &self,
-        cmd: &clap::Command,
-        arg: Option<&clap::Arg>,
-        value: &std::ffi::OsStr,
-    ) -> Result<Self::Value, clap::Error> {
-        let value = value
-            .to_str()
-            .ok_or_else(|| clap::Error::new(clap::error::ErrorKind::InvalidUtf8))?;
-
-        value.parse().map_err(|()| {
-            let mut error = clap::Error::new(clap::error::ErrorKind::ValueValidation).with_cmd(cmd);
-            if let Some(arg) = arg {
-                error.insert(
-                    clap::error::ContextKind::InvalidArg,
-                    clap::error::ContextValue::String(arg.to_string()),
-                );
-            }
-            error.insert(
-                clap::error::ContextKind::InvalidValue,
-                clap::error::ContextValue::String(value.to_string()),
-            );
-            error
-        })
-    }
-
-    fn possible_values(&self) -> Option<Box<dyn Iterator<Item = PossibleValue> + '_>> {
-        let mut visitor = CollectOptionsVisitor::default();
-        Options::metadata().record(&mut visitor);
-
-        Some(Box::new(visitor.into_iter().map(|(name, doc)| {
-            let first_paragraph = doc
-                .lines()
-                .take_while(|line| !line.trim_end().is_empty())
-                // Replace double quotes with single quotes,to avoid clap's lack of escaping
-                // when creating zsh completions. This has no security implications, as it only
-                // affects the help string, which is never executed
-                .map(|s| s.replace('"', "'"))
-                .join(" ");
-
-            PossibleValue::new(name).help(first_paragraph)
-        })))
-    }
-}

crates/ruff/src/commands/completions/mod.rs

@@ -1 +0,0 @@
-pub(crate) mod config;

crates/ruff/src/commands/config.rs

@@ -1,39 +0,0 @@
-use anyhow::{Result, anyhow};
-
-use crate::args::HelpFormat;
-
-use ruff_options_metadata::OptionsMetadata;
-use ruff_workspace::options::Options;
-
-#[expect(clippy::print_stdout)]
-pub(crate) fn config(key: Option<&str>, format: HelpFormat) -> Result<()> {
-    match key {
-        None => {
-            let metadata = Options::metadata();
-            match format {
-                HelpFormat::Text => {
-                    println!("{metadata}");
-                }
-
-                HelpFormat::Json => {
-                    println!("{}", &serde_json::to_string_pretty(&metadata)?);
-                }
-            }
-        }
-        Some(key) => match Options::metadata().find(key) {
-            None => {
-                return Err(anyhow!("Unknown option: {key}"));
-            }
-            Some(entry) => match format {
-                HelpFormat::Text => {
-                    print!("{entry}");
-                }
-
-                HelpFormat::Json => {
-                    println!("{}", &serde_json::to_string_pretty(&entry)?);
-                }
-            },
-        },
-    }
-    Ok(())
-}

crates/ruff/src/commands/format.rs

@@ -1,965 +0,0 @@
-use std::fmt::{Display, Formatter};
-use std::fs::File;
-use std::io;
-use std::io::{Write, stderr, stdout};
-use std::path::{Path, PathBuf};
-use std::time::Instant;
-
-use anyhow::Result;
-use colored::Colorize;
-use itertools::Itertools;
-use log::{error, warn};
-use rayon::iter::Either::{Left, Right};
-use rayon::iter::{IntoParallelRefIterator, ParallelIterator};
-use ruff_python_parser::ParseError;
-use rustc_hash::FxHashSet;
-use thiserror::Error;
-use tracing::debug;
-
-use ruff_db::panic::{PanicError, catch_unwind};
-use ruff_diagnostics::SourceMap;
-use ruff_linter::fs;
-use ruff_linter::logging::{DisplayParseError, LogLevel};
-use ruff_linter::package::PackageRoot;
-use ruff_linter::registry::Rule;
-use ruff_linter::rules::flake8_quotes::settings::Quote;
-use ruff_linter::source_kind::{SourceError, SourceKind};
-use ruff_linter::warn_user_once;
-use ruff_python_ast::{PySourceType, SourceType};
-use ruff_python_formatter::{FormatModuleError, QuoteStyle, format_module_source, format_range};
-use ruff_source_file::LineIndex;
-use ruff_text_size::{TextLen, TextRange, TextSize};
-use ruff_workspace::FormatterSettings;
-use ruff_workspace::resolver::{ResolvedFile, Resolver, match_exclusion, python_files_in_path};
-
-use crate::args::{ConfigArguments, FormatArguments, FormatRange};
-use crate::cache::{Cache, FileCacheKey, PackageCacheMap, PackageCaches};
-use crate::resolve::resolve;
-use crate::{ExitStatus, resolve_default_files};
-
-#[derive(Debug, Copy, Clone, is_macro::Is)]
-pub(crate) enum FormatMode {
-    /// Write the formatted contents back to the file.
-    Write,
-    /// Check if the file is formatted, but do not write the formatted contents back.
-    Check,
-    /// Check if the file is formatted, show a diff if not.
-    Diff,
-}
-
-impl FormatMode {
-    pub(crate) fn from_cli(cli: &FormatArguments) -> Self {
-        if cli.diff {
-            FormatMode::Diff
-        } else if cli.check {
-            FormatMode::Check
-        } else {
-            FormatMode::Write
-        }
-    }
-}
-
-/// Format a set of files, and return the exit status.
-pub(crate) fn format(
-    cli: FormatArguments,
-    config_arguments: &ConfigArguments,
-) -> Result<ExitStatus> {
-    let pyproject_config = resolve(config_arguments, cli.stdin_filename.as_deref())?;
-    let mode = FormatMode::from_cli(&cli);
-    let files = resolve_default_files(cli.files, false);
-    let (paths, resolver) = python_files_in_path(&files, &pyproject_config, config_arguments)?;
-
-    if paths.is_empty() {
-        warn_user_once!("No Python files found under the given path(s)");
-        return Ok(ExitStatus::Success);
-    }
-
-    if cli.range.is_some() && paths.len() > 1 {
-        return Err(anyhow::anyhow!(
-            "The `--range` option is only supported when formatting a single file but the specified paths resolve to {} files.",
-            paths.len()
-        ));
-    }
-
-    warn_incompatible_formatter_settings(&resolver);
-
-    // Discover the package root for each Python file.
-    let package_roots = resolver.package_roots(
-        &paths
-            .iter()
-            .flatten()
-            .map(ResolvedFile::path)
-            .collect::<Vec<_>>(),
-    );
-
-    let caches = if cli.no_cache {
-        None
-    } else {
-        // `--no-cache` doesn't respect code changes, and so is often confusing during
-        // development.
-        #[cfg(debug_assertions)]
-        crate::warn_user!("Detected debug build without --no-cache.");
-
-        Some(PackageCacheMap::init(&package_roots, &resolver))
-    };
-
-    let start = Instant::now();
-    let (results, mut errors): (Vec<_>, Vec<_>) = paths
-        .par_iter()
-        .filter_map(|entry| {
-            match entry {
-                Ok(resolved_file) => {
-                    let path = resolved_file.path();
-                    let settings = resolver.resolve(path);
-
-                    let source_type = match settings.formatter.extension.get(path) {
-                        None => match SourceType::from(path) {
-                            SourceType::Python(source_type) => source_type,
-                            SourceType::Toml(_) => {
-                                // Ignore any non-Python files.
-                                return None;
-                            }
-                        },
-                        Some(language) => PySourceType::from(language),
-                    };
-
-                    // Ignore files that are excluded from formatting
-                    if (settings.file_resolver.force_exclude || !resolved_file.is_root())
-                        && match_exclusion(
-                            path,
-                            resolved_file.file_name(),
-                            &settings.formatter.exclude,
-                        )
-                    {
-                        return None;
-                    }
-
-                    let package = path
-                        .parent()
-                        .and_then(|parent| package_roots.get(parent).copied())
-                        .flatten();
-                    let cache_root = package
-                        .map(PackageRoot::path)
-                        .unwrap_or_else(|| path.parent().unwrap_or(path));
-                    let cache = caches.get(cache_root);
-
-                    Some(
-                        match catch_unwind(|| {
-                            format_path(
-                                path,
-                                &settings.formatter,
-                                source_type,
-                                mode,
-                                cli.range,
-                                cache,
-                            )
-                        }) {
-                            Ok(inner) => inner.map(|result| FormatPathResult {
-                                path: resolved_file.path().to_path_buf(),
-                                result,
-                            }),
-                            Err(error) => Err(FormatCommandError::Panic(
-                                Some(resolved_file.path().to_path_buf()),
-                                Box::new(error),
-                            )),
-                        },
-                    )
-                }
-                Err(err) => Some(Err(FormatCommandError::Ignore(err.clone()))),
-            }
-        })
-        .partition_map(|result| match result {
-            Ok(diagnostic) => Left(diagnostic),
-            Err(err) => Right(err),
-        });
-    let duration = start.elapsed();
-
-    debug!(
-        "Formatted {} files in {:.2?}",
-        results.len() + errors.len(),
-        duration
-    );
-
-    // Store the caches.
-    caches.persist()?;
-
-    // Report on any errors.
-    errors.sort_unstable_by(|a, b| a.path().cmp(&b.path()));
-
-    for error in &errors {
-        error!("{error}");
-    }
-
-    let results = FormatResults::new(results.as_slice(), mode);
-    match mode {
-        FormatMode::Write => {}
-        FormatMode::Check => {
-            results.write_changed(&mut stdout().lock())?;
-        }
-        FormatMode::Diff => {
-            results.write_diff(&mut stdout().lock())?;
-        }
-    }
-
-    // Report on the formatting changes.
-    if config_arguments.log_level >= LogLevel::Default {
-        if mode.is_diff() {
-            // Allow piping the diff to e.g. a file by writing the summary to stderr
-            results.write_summary(&mut stderr().lock())?;
-        } else {
-            results.write_summary(&mut stdout().lock())?;
-        }
-    }
-
-    match mode {
-        FormatMode::Write => {
-            if errors.is_empty() {
-                if cli.exit_non_zero_on_format && results.any_formatted() {
-                    Ok(ExitStatus::Failure)
-                } else {
-                    Ok(ExitStatus::Success)
-                }
-            } else {
-                Ok(ExitStatus::Error)
-            }
-        }
-        FormatMode::Check | FormatMode::Diff => {
-            if errors.is_empty() {
-                if results.any_formatted() {
-                    Ok(ExitStatus::Failure)
-                } else {
-                    Ok(ExitStatus::Success)
-                }
-            } else {
-                Ok(ExitStatus::Error)
-            }
-        }
-    }
-}
-
-/// Format the file at the given [`Path`].
-#[tracing::instrument(level = "debug", skip_all, fields(path = %path.display()))]
-pub(crate) fn format_path(
-    path: &Path,
-    settings: &FormatterSettings,
-    source_type: PySourceType,
-    mode: FormatMode,
-    range: Option<FormatRange>,
-    cache: Option<&Cache>,
-) -> Result<FormatResult, FormatCommandError> {
-    if let Some(cache) = cache {
-        let relative_path = cache
-            .relative_path(path)
-            .expect("wrong package cache for file");
-
-        if let Ok(cache_key) = FileCacheKey::from_path(path) {
-            if cache.is_formatted(relative_path, &cache_key) {
-                return Ok(FormatResult::Unchanged);
-            }
-        }
-    }
-
-    // Extract the sources from the file.
-    let unformatted = match SourceKind::from_path(path, source_type) {
-        Ok(Some(source_kind)) => source_kind,
-        // Non-Python Jupyter notebook.
-        Ok(None) => return Ok(FormatResult::Skipped),
-        Err(err) => {
-            return Err(FormatCommandError::Read(Some(path.to_path_buf()), err));
-        }
-    };
-
-    // Don't write back to the cache if formatting a range.
-    let cache = cache.filter(|_| range.is_none());
-
-    // Format the source.
-    let format_result = match format_source(&unformatted, source_type, Some(path), settings, range)?
-    {
-        FormattedSource::Formatted(formatted) => match mode {
-            FormatMode::Write => {
-                let mut writer = File::create(path).map_err(|err| {
-                    FormatCommandError::Write(Some(path.to_path_buf()), err.into())
-                })?;
-                formatted
-                    .write(&mut writer)
-                    .map_err(|err| FormatCommandError::Write(Some(path.to_path_buf()), err))?;
-
-                if let Some(cache) = cache {
-                    if let Ok(cache_key) = FileCacheKey::from_path(path) {
-                        let relative_path = cache
-                            .relative_path(path)
-                            .expect("wrong package cache for file");
-                        cache.set_formatted(relative_path.to_path_buf(), &cache_key);
-                    }
-                }
-
-                FormatResult::Formatted
-            }
-            FormatMode::Check => FormatResult::Formatted,
-            FormatMode::Diff => FormatResult::Diff {
-                unformatted,
-                formatted,
-            },
-        },
-        FormattedSource::Unchanged => {
-            if let Some(cache) = cache {
-                if let Ok(cache_key) = FileCacheKey::from_path(path) {
-                    let relative_path = cache
-                        .relative_path(path)
-                        .expect("wrong package cache for file");
-                    cache.set_formatted(relative_path.to_path_buf(), &cache_key);
-                }
-            }
-
-            FormatResult::Unchanged
-        }
-    };
-
-    Ok(format_result)
-}
-
-#[derive(Debug)]
-pub(crate) enum FormattedSource {
-    /// The source was formatted, and the [`SourceKind`] contains the transformed source code.
-    Formatted(SourceKind),
-    /// The source was unchanged.
-    Unchanged,
-}
-
-impl From<FormattedSource> for FormatResult {
-    fn from(value: FormattedSource) -> Self {
-        match value {
-            FormattedSource::Formatted(_) => FormatResult::Formatted,
-            FormattedSource::Unchanged => FormatResult::Unchanged,
-        }
-    }
-}
-
-/// Format a [`SourceKind`], returning the transformed [`SourceKind`], or `None` if the source was
-/// unchanged.
-pub(crate) fn format_source(
-    source_kind: &SourceKind,
-    source_type: PySourceType,
-    path: Option<&Path>,
-    settings: &FormatterSettings,
-    range: Option<FormatRange>,
-) -> Result<FormattedSource, FormatCommandError> {
-    match &source_kind {
-        SourceKind::Python(unformatted) => {
-            let options = settings.to_format_options(source_type, unformatted, path);
-
-            let formatted = if let Some(range) = range {
-                let line_index = LineIndex::from_source_text(unformatted);
-                let byte_range = range.to_text_range(unformatted, &line_index);
-                format_range(unformatted, byte_range, options).map(|formatted_range| {
-                    let mut formatted = unformatted.to_string();
-                    formatted.replace_range(
-                        std::ops::Range::<usize>::from(formatted_range.source_range()),
-                        formatted_range.as_code(),
-                    );
-
-                    formatted
-                })
-            } else {
-                // Using `Printed::into_code` requires adding `ruff_formatter` as a direct dependency, and I suspect that Rust can optimize the closure away regardless.
-                #[expect(clippy::redundant_closure_for_method_calls)]
-                format_module_source(unformatted, options).map(|formatted| formatted.into_code())
-            };
-
-            let formatted = formatted.map_err(|err| {
-                if let FormatModuleError::ParseError(err) = err {
-                    DisplayParseError::from_source_kind(
-                        err,
-                        path.map(Path::to_path_buf),
-                        source_kind,
-                    )
-                    .into()
-                } else {
-                    FormatCommandError::Format(path.map(Path::to_path_buf), err)
-                }
-            })?;
-
-            if formatted.len() == unformatted.len() && formatted == *unformatted {
-                Ok(FormattedSource::Unchanged)
-            } else {
-                Ok(FormattedSource::Formatted(SourceKind::Python(formatted)))
-            }
-        }
-        SourceKind::IpyNotebook(notebook) => {
-            if !notebook.is_python_notebook() {
-                return Ok(FormattedSource::Unchanged);
-            }
-
-            if range.is_some() {
-                return Err(FormatCommandError::RangeFormatNotebook(
-                    path.map(Path::to_path_buf),
-                ));
-            }
-
-            let options = settings.to_format_options(source_type, notebook.source_code(), path);
-
-            let mut output: Option<String> = None;
-            let mut last: Option<TextSize> = None;
-            let mut source_map = SourceMap::default();
-
-            // Format each cell individually.
-            for (start, end) in notebook.cell_offsets().iter().tuple_windows::<(_, _)>() {
-                let range = TextRange::new(*start, *end);
-                let unformatted = &notebook.source_code()[range];
-
-                // Format the cell.
-                let formatted =
-                    format_module_source(unformatted, options.clone()).map_err(|err| {
-                        if let FormatModuleError::ParseError(err) = err {
-                            // Offset the error by the start of the cell
-                            DisplayParseError::from_source_kind(
-                                ParseError {
-                                    error: err.error,
-                                    location: err.location.checked_add(*start).unwrap(),
-                                },
-                                path.map(Path::to_path_buf),
-                                source_kind,
-                            )
-                            .into()
-                        } else {
-                            FormatCommandError::Format(path.map(Path::to_path_buf), err)
-                        }
-                    })?;
-
-                // If the cell is unchanged, skip it.
-                let formatted = formatted.as_code();
-                if formatted.len() == unformatted.len() && formatted == unformatted {
-                    continue;
-                }
-
-                // If this is the first newly-formatted cell, initialize the output.
-                let output = output
-                    .get_or_insert_with(|| String::with_capacity(notebook.source_code().len()));
-
-                // Add all contents from `last` to the current cell.
-                let slice = &notebook.source_code()
-                    [TextRange::new(last.unwrap_or_default(), range.start())];
-                output.push_str(slice);
-
-                // Add the start source marker for the cell.
-                source_map.push_marker(*start, output.text_len());
-
-                // Add the cell itself.
-                output.push_str(formatted);
-
-                // Add the end source marker for the added cell.
-                source_map.push_marker(*end, output.text_len());
-
-                // Track that the cell was formatted.
-                last = Some(*end);
-            }
-
-            // If the file was unchanged, return `None`.
-            let (Some(mut output), Some(last)) = (output, last) else {
-                return Ok(FormattedSource::Unchanged);
-            };
-
-            // Add the remaining content.
-            let slice = &notebook.source_code()[usize::from(last)..];
-            output.push_str(slice);
-
-            // Update the notebook.
-            let mut formatted = notebook.clone();
-            formatted.update(&source_map, output);
-
-            Ok(FormattedSource::Formatted(SourceKind::IpyNotebook(
-                formatted,
-            )))
-        }
-    }
-}
-
-/// The result of an individual formatting operation.
-#[derive(Debug, Clone, is_macro::Is)]
-pub(crate) enum FormatResult {
-    /// The file was formatted.
-    Formatted,
-
-    /// The file was formatted, [`SourceKind`] contains the formatted code
-    Diff {
-        unformatted: SourceKind,
-        formatted: SourceKind,
-    },
-
-    /// The file was unchanged, as the formatted contents matched the existing contents.
-    Unchanged,
-
-    /// Skipped formatting because its an unsupported file format
-    Skipped,
-}
-
-/// The coupling of a [`FormatResult`] with the path of the file that was analyzed.
-#[derive(Debug)]
-struct FormatPathResult {
-    path: PathBuf,
-    result: FormatResult,
-}
-
-/// The results of formatting a set of files
-#[derive(Debug)]
-struct FormatResults<'a> {
-    /// The individual formatting results.
-    results: &'a [FormatPathResult],
-    /// The format mode that was used.
-    mode: FormatMode,
-}
-
-impl<'a> FormatResults<'a> {
-    fn new(results: &'a [FormatPathResult], mode: FormatMode) -> Self {
-        Self { results, mode }
-    }
-
-    /// Returns `true` if any of the files require formatting.
-    fn any_formatted(&self) -> bool {
-        self.results.iter().any(|result| match result.result {
-            FormatResult::Formatted | FormatResult::Diff { .. } => true,
-            FormatResult::Unchanged | FormatResult::Skipped => false,
-        })
-    }
-
-    /// Write a diff of the formatting changes to the given writer.
-    fn write_diff(&self, f: &mut impl Write) -> io::Result<()> {
-        for (path, unformatted, formatted) in self
-            .results
-            .iter()
-            .filter_map(|result| {
-                if let FormatResult::Diff {
-                    unformatted,
-                    formatted,
-                } = &result.result
-                {
-                    Some((result.path.as_path(), unformatted, formatted))
-                } else {
-                    None
-                }
-            })
-            .sorted_unstable_by_key(|(path, _, _)| *path)
-        {
-            write!(f, "{}", unformatted.diff(formatted, Some(path)).unwrap())?;
-        }
-
-        Ok(())
-    }
-
-    /// Write a list of the files that would be changed to the given writer.
-    fn write_changed(&self, f: &mut impl Write) -> io::Result<()> {
-        for path in self
-            .results
-            .iter()
-            .filter_map(|result| {
-                if result.result.is_formatted() {
-                    Some(result.path.as_path())
-                } else {
-                    None
-                }
-            })
-            .sorted_unstable()
-        {
-            writeln!(f, "Would reformat: {}", fs::relativize_path(path).bold())?;
-        }
-
-        Ok(())
-    }
-
-    /// Write a summary of the formatting results to the given writer.
-    fn write_summary(&self, f: &mut impl Write) -> io::Result<()> {
-        // Compute the number of changed and unchanged files.
-        let mut changed = 0u32;
-        let mut unchanged = 0u32;
-        for result in self.results {
-            match &result.result {
-                FormatResult::Formatted => {
-                    changed += 1;
-                }
-                FormatResult::Unchanged => unchanged += 1,
-                FormatResult::Diff { .. } => {
-                    changed += 1;
-                }
-                FormatResult::Skipped => {}
-            }
-        }
-
-        // Write out a summary of the formatting results.
-        if changed > 0 && unchanged > 0 {
-            writeln!(
-                f,
-                "{} file{} {}, {} file{} {}",
-                changed,
-                if changed == 1 { "" } else { "s" },
-                match self.mode {
-                    FormatMode::Write => "reformatted",
-                    FormatMode::Check | FormatMode::Diff => "would be reformatted",
-                },
-                unchanged,
-                if unchanged == 1 { "" } else { "s" },
-                match self.mode {
-                    FormatMode::Write => "left unchanged",
-                    FormatMode::Check | FormatMode::Diff => "already formatted",
-                },
-            )
-        } else if changed > 0 {
-            writeln!(
-                f,
-                "{} file{} {}",
-                changed,
-                if changed == 1 { "" } else { "s" },
-                match self.mode {
-                    FormatMode::Write => "reformatted",
-                    FormatMode::Check | FormatMode::Diff => "would be reformatted",
-                }
-            )
-        } else if unchanged > 0 {
-            writeln!(
-                f,
-                "{} file{} {}",
-                unchanged,
-                if unchanged == 1 { "" } else { "s" },
-                match self.mode {
-                    FormatMode::Write => "left unchanged",
-                    FormatMode::Check | FormatMode::Diff => "already formatted",
-                },
-            )
-        } else {
-            Ok(())
-        }
-    }
-}
-
-/// An error that can occur while formatting a set of files.
-#[derive(Error, Debug)]
-pub(crate) enum FormatCommandError {
-    Ignore(#[from] ignore::Error),
-    Parse(#[from] DisplayParseError),
-    Panic(Option<PathBuf>, Box<PanicError>),
-    Read(Option<PathBuf>, SourceError),
-    Format(Option<PathBuf>, FormatModuleError),
-    Write(Option<PathBuf>, SourceError),
-    Diff(Option<PathBuf>, io::Error),
-    RangeFormatNotebook(Option<PathBuf>),
-}
-
-impl FormatCommandError {
-    fn path(&self) -> Option<&Path> {
-        match self {
-            Self::Ignore(err) => {
-                if let ignore::Error::WithPath { path, .. } = err {
-                    Some(path.as_path())
-                } else {
-                    None
-                }
-            }
-            Self::Parse(err) => err.path(),
-            Self::Panic(path, _)
-            | Self::Read(path, _)
-            | Self::Format(path, _)
-            | Self::Write(path, _)
-            | Self::Diff(path, _)
-            | Self::RangeFormatNotebook(path) => path.as_deref(),
-        }
-    }
-}
-
-impl Display for FormatCommandError {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        match self {
-            Self::Ignore(err) => {
-                if let ignore::Error::WithPath { path, .. } = err {
-                    write!(
-                        f,
-                        "{}{}{} {}",
-                        "Failed to format ".bold(),
-                        fs::relativize_path(path).bold(),
-                        ":".bold(),
-                        err.io_error()
-                            .map_or_else(|| err.to_string(), std::string::ToString::to_string)
-                    )
-                } else {
-                    write!(
-                        f,
-                        "{header} {error}",
-                        header = "Encountered error:".bold(),
-                        error = err
-                            .io_error()
-                            .map_or_else(|| err.to_string(), std::string::ToString::to_string)
-                    )
-                }
-            }
-            Self::Parse(err) => {
-                write!(f, "{err}")
-            }
-            Self::Read(path, err) => {
-                if let Some(path) = path {
-                    write!(
-                        f,
-                        "{}{}{} {err}",
-                        "Failed to read ".bold(),
-                        fs::relativize_path(path).bold(),
-                        ":".bold()
-                    )
-                } else {
-                    write!(f, "{header} {err}", header = "Failed to read:".bold())
-                }
-            }
-            Self::Write(path, err) => {
-                if let Some(path) = path {
-                    write!(
-                        f,
-                        "{}{}{} {err}",
-                        "Failed to write ".bold(),
-                        fs::relativize_path(path).bold(),
-                        ":".bold()
-                    )
-                } else {
-                    write!(f, "{header} {err}", header = "Failed to write:".bold())
-                }
-            }
-            Self::Format(path, err) => {
-                if let Some(path) = path {
-                    write!(
-                        f,
-                        "{}{}{} {err}",
-                        "Failed to format ".bold(),
-                        fs::relativize_path(path).bold(),
-                        ":".bold()
-                    )
-                } else {
-                    write!(f, "{header} {err}", header = "Failed to format:".bold())
-                }
-            }
-            Self::Diff(path, err) => {
-                if let Some(path) = path {
-                    write!(
-                        f,
-                        "{}{}{} {err}",
-                        "Failed to generate diff for ".bold(),
-                        fs::relativize_path(path).bold(),
-                        ":".bold()
-                    )
-                } else {
-                    write!(
-                        f,
-                        "{header} {err}",
-                        header = "Failed to generate diff:".bold(),
-                    )
-                }
-            }
-            Self::RangeFormatNotebook(path) => {
-                if let Some(path) = path {
-                    write!(
-                        f,
-                        "{header}{path}{colon} Range formatting isn't supported for notebooks.",
-                        header = "Failed to format ".bold(),
-                        path = fs::relativize_path(path).bold(),
-                        colon = ":".bold()
-                    )
-                } else {
-                    write!(
-                        f,
-                        "{header} Range formatting isn't supported for notebooks",
-                        header = "Failed to format:".bold()
-                    )
-                }
-            }
-            Self::Panic(path, err) => {
-                let message = r"This indicates a bug in Ruff. If you could open an issue at:
-
-    https://github.com/astral-sh/ruff/issues/new?title=%5BFormatter%20panic%5D
-
-...with the relevant file contents, the `pyproject.toml` settings, and the following stack trace, we'd be very appreciative!
-";
-                if let Some(path) = path {
-                    write!(
-                        f,
-                        "{}{}{} {message}\n{err}",
-                        "Panicked while formatting ".bold(),
-                        fs::relativize_path(path).bold(),
-                        ":".bold()
-                    )
-                } else {
-                    write!(
-                        f,
-                        "{} {message}\n{err}",
-                        "Panicked while formatting.".bold()
-                    )
-                }
-            }
-        }
-    }
-}
-
-pub(super) fn warn_incompatible_formatter_settings(resolver: &Resolver) {
-    // First, collect all rules that are incompatible regardless of the linter-specific settings.
-    let mut incompatible_rules = FxHashSet::default();
-    for setting in resolver.settings() {
-        for rule in [
-            // Flags missing trailing commas when all arguments are on its own line:
-            // ```python
-            // def args(
-            //     aaaaaaaa, bbbbbbbbb, cccccccccc, ddddddddd, eeeeeeee, ffffff, gggggggggggg, hhhh
-            // ):
-            //     pass
-            // ```
-            Rule::MissingTrailingComma,
-            // The formatter always removes blank lines before the docstring.
-            Rule::IncorrectBlankLineBeforeClass,
-        ] {
-            if setting.linter.rules.enabled(rule) {
-                incompatible_rules.insert(rule);
-            }
-        }
-    }
-
-    if !incompatible_rules.is_empty() {
-        let mut rule_names: Vec<_> = incompatible_rules
-            .into_iter()
-            .map(|rule| format!("`{}`", rule.noqa_code()))
-            .collect();
-        rule_names.sort();
-        if let [rule] = rule_names.as_slice() {
-            warn_user_once!(
-                "The following rule may cause conflicts when used with the formatter: {rule}. To avoid unexpected behavior, we recommend disabling this rule, either by removing it from the `lint.select` or `lint.extend-select` configuration, or adding it to the `lint.ignore` configuration."
-            );
-        } else {
-            warn_user_once!(
-                "The following rules may cause conflicts when used with the formatter: {}. To avoid unexpected behavior, we recommend disabling these rules, either by removing them from the `lint.select` or `lint.extend-select` configuration, or adding them to the `lint.ignore` configuration.",
-                rule_names.join(", ")
-            );
-        }
-    }
-
-    // Next, validate settings-specific incompatibilities.
-    for setting in resolver.settings() {
-        // Validate all rules that rely on tab styles.
-        if setting.linter.rules.enabled(Rule::TabIndentation)
-            && setting.formatter.indent_style.is_tab()
-        {
-            warn_user_once!(
-                "The `format.indent-style=\"tab\"` option is incompatible with `W191`, which lints against all uses of tabs. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `\"space\"`."
-            );
-        }
-
-        if !setting
-            .linter
-            .rules
-            .enabled(Rule::SingleLineImplicitStringConcatenation)
-            && setting
-                .linter
-                .rules
-                .enabled(Rule::MultiLineImplicitStringConcatenation)
-            && !setting.linter.flake8_implicit_str_concat.allow_multiline
-        {
-            warn_user_once!(
-                "The `lint.flake8-implicit-str-concat.allow-multiline = false` option is incompatible with the formatter unless `ISC001` is enabled. We recommend enabling `ISC001` or setting `allow-multiline=true`."
-            );
-        }
-
-        // Validate all rules that rely on tab styles.
-        if setting.linter.rules.enabled(Rule::DocstringTabIndentation)
-            && setting.formatter.indent_style.is_tab()
-        {
-            warn_user_once!(
-                "The `format.indent-style=\"tab\"` option is incompatible with `D206`, with requires space-based indentation. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `\"space\"`."
-            );
-        }
-
-        // Validate all rules that rely on custom indent widths.
-        if setting.linter.rules.any_enabled(&[
-            Rule::IndentationWithInvalidMultiple,
-            Rule::IndentationWithInvalidMultipleComment,
-        ]) && setting.formatter.indent_width.value() != 4
-        {
-            warn_user_once!(
-                "The `format.indent-width` option with a value other than 4 is incompatible with `E111` and `E114`. We recommend disabling these rules when using the formatter, which enforces a consistent indentation width. Alternatively, set the `format.indent-width` option to `4`."
-            );
-        }
-
-        // Validate all rules that rely on quote styles.
-        if setting
-            .linter
-            .rules
-            .any_enabled(&[Rule::BadQuotesInlineString, Rule::AvoidableEscapedQuote])
-        {
-            match (
-                setting.linter.flake8_quotes.inline_quotes,
-                setting.formatter.quote_style,
-            ) {
-                (Quote::Double, QuoteStyle::Single) => {
-                    warn_user_once!(
-                        "The `flake8-quotes.inline-quotes=\"double\"` option is incompatible with the formatter's `format.quote-style=\"single\"`. We recommend disabling `Q000` and `Q003` when using the formatter, which enforces a consistent quote style. Alternatively, set both options to either `\"single\"` or `\"double\"`."
-                    );
-                }
-                (Quote::Single, QuoteStyle::Double) => {
-                    warn_user_once!(
-                        "The `flake8-quotes.inline-quotes=\"single\"` option is incompatible with the formatter's `format.quote-style=\"double\"`. We recommend disabling `Q000` and `Q003` when using the formatter, which enforces a consistent quote style. Alternatively, set both options to either `\"single\"` or `\"double\"`."
-                    );
-                }
-                _ => {}
-            }
-        }
-
-        if setting.linter.rules.enabled(Rule::BadQuotesMultilineString)
-            && setting.linter.flake8_quotes.multiline_quotes == Quote::Single
-            && matches!(
-                setting.formatter.quote_style,
-                QuoteStyle::Single | QuoteStyle::Double
-            )
-        {
-            warn_user_once!(
-                "The `flake8-quotes.multiline-quotes=\"single\"` option is incompatible with the formatter. We recommend disabling `Q001` when using the formatter, which enforces double quotes for multiline strings. Alternatively, set the `flake8-quotes.multiline-quotes` option to `\"double\"`.`"
-            );
-        }
-
-        if setting.linter.rules.enabled(Rule::BadQuotesDocstring)
-            && setting.linter.flake8_quotes.docstring_quotes == Quote::Single
-            && matches!(
-                setting.formatter.quote_style,
-                QuoteStyle::Single | QuoteStyle::Double
-            )
-        {
-            warn_user_once!(
-                "The `flake8-quotes.docstring-quotes=\"single\"` option is incompatible with the formatter. We recommend disabling `Q002` when using the formatter, which enforces double quotes for docstrings. Alternatively, set the `flake8-quotes.docstring-quotes` option to `\"double\"`.`"
-            );
-        }
-
-        // Validate all isort settings.
-        if setting.linter.rules.enabled(Rule::UnsortedImports) {
-            // The formatter removes empty lines if the value is larger than 2 but always inserts a empty line after imports.
-            // Two empty lines are okay because `isort` only uses this setting for top-level imports (not in nested blocks).
-            if !matches!(setting.linter.isort.lines_after_imports, 1 | 2 | -1) {
-                warn_user_once!(
-                    "The isort option `isort.lines-after-imports` with a value other than `-1`, `1` or `2` is incompatible with the formatter. To avoid unexpected behavior, we recommend setting the option to one of: `2`, `1`, or `-1` (default)."
-                );
-            }
-
-            // Values larger than two get reduced to one line by the formatter if the import is in a nested block.
-            if setting.linter.isort.lines_between_types > 1 {
-                warn_user_once!(
-                    "The isort option `isort.lines-between-types` with a value greater than 1 is incompatible with the formatter. To avoid unexpected behavior, we recommend setting the option to one of: `1` or `0` (default)."
-                );
-            }
-
-            // isort inserts a trailing comma which the formatter preserves, but only if `skip-magic-trailing-comma` isn't false.
-            // This isn't relevant when using `force-single-line`, since isort will never include a trailing comma in that case.
-            if setting.formatter.magic_trailing_comma.is_ignore()
-                && !setting.linter.isort.force_single_line
-            {
-                if setting.linter.isort.force_wrap_aliases {
-                    warn_user_once!(
-                        "The isort option `isort.force-wrap-aliases` is incompatible with the formatter `format.skip-magic-trailing-comma=true` option. To avoid unexpected behavior, we recommend either setting `isort.force-wrap-aliases=false` or `format.skip-magic-trailing-comma=false`."
-                    );
-                }
-
-                if setting.linter.isort.split_on_trailing_comma {
-                    warn_user_once!(
-                        "The isort option `isort.split-on-trailing-comma` is incompatible with the formatter `format.skip-magic-trailing-comma=true` option. To avoid unexpected behavior, we recommend either setting `isort.split-on-trailing-comma=false` or `format.skip-magic-trailing-comma=false`."
-                    );
-                }
-            }
-        }
-    }
-}

crates/ruff/src/commands/format_stdin.rs

@@ -1,142 +0,0 @@
-use std::io::stdout;
-use std::path::Path;
-
-use anyhow::Result;
-use log::error;
-
-use ruff_linter::source_kind::SourceKind;
-use ruff_python_ast::{PySourceType, SourceType};
-use ruff_workspace::FormatterSettings;
-use ruff_workspace::resolver::{Resolver, match_exclusion, python_file_at_path};
-
-use crate::ExitStatus;
-use crate::args::{ConfigArguments, FormatArguments, FormatRange};
-use crate::commands::format::{
-    FormatCommandError, FormatMode, FormatResult, FormattedSource, format_source,
-    warn_incompatible_formatter_settings,
-};
-use crate::resolve::resolve;
-use crate::stdin::{parrot_stdin, read_from_stdin};
-
-/// Run the formatter over a single file, read from `stdin`.
-pub(crate) fn format_stdin(
-    cli: &FormatArguments,
-    config_arguments: &ConfigArguments,
-) -> Result<ExitStatus> {
-    let pyproject_config = resolve(config_arguments, cli.stdin_filename.as_deref())?;
-
-    let mut resolver = Resolver::new(&pyproject_config);
-    warn_incompatible_formatter_settings(&resolver);
-
-    let mode = FormatMode::from_cli(cli);
-
-    if resolver.force_exclude() {
-        if let Some(filename) = cli.stdin_filename.as_deref() {
-            if !python_file_at_path(filename, &mut resolver, config_arguments)? {
-                if mode.is_write() {
-                    parrot_stdin()?;
-                }
-                return Ok(ExitStatus::Success);
-            }
-
-            if filename.file_name().is_some_and(|name| {
-                match_exclusion(filename, name, &resolver.base_settings().formatter.exclude)
-            }) {
-                if mode.is_write() {
-                    parrot_stdin()?;
-                }
-                return Ok(ExitStatus::Success);
-            }
-        }
-    }
-
-    let path = cli.stdin_filename.as_deref();
-    let settings = &resolver.base_settings().formatter;
-
-    let source_type = match path.and_then(|path| settings.extension.get(path)) {
-        None => match path.map(SourceType::from).unwrap_or_default() {
-            SourceType::Python(source_type) => source_type,
-            SourceType::Toml(_) => {
-                if mode.is_write() {
-                    parrot_stdin()?;
-                }
-                return Ok(ExitStatus::Success);
-            }
-        },
-        Some(language) => PySourceType::from(language),
-    };
-
-    // Format the file.
-    match format_source_code(path, cli.range, settings, source_type, mode) {
-        Ok(result) => match mode {
-            FormatMode::Write => Ok(ExitStatus::Success),
-            FormatMode::Check | FormatMode::Diff => {
-                if result.is_formatted() {
-                    Ok(ExitStatus::Failure)
-                } else {
-                    Ok(ExitStatus::Success)
-                }
-            }
-        },
-        Err(err) => {
-            error!("{err}");
-            Ok(ExitStatus::Error)
-        }
-    }
-}
-
-/// Format source code read from `stdin`.
-fn format_source_code(
-    path: Option<&Path>,
-    range: Option<FormatRange>,
-    settings: &FormatterSettings,
-    source_type: PySourceType,
-    mode: FormatMode,
-) -> Result<FormatResult, FormatCommandError> {
-    // Read the source from stdin.
-    let source_code = read_from_stdin()
-        .map_err(|err| FormatCommandError::Read(path.map(Path::to_path_buf), err.into()))?;
-
-    let source_kind = match SourceKind::from_source_code(source_code, source_type) {
-        Ok(Some(source_kind)) => source_kind,
-        Ok(None) => return Ok(FormatResult::Unchanged),
-        Err(err) => {
-            return Err(FormatCommandError::Read(path.map(Path::to_path_buf), err));
-        }
-    };
-
-    // Format the source.
-    let formatted = format_source(&source_kind, source_type, path, settings, range)?;
-
-    match &formatted {
-        FormattedSource::Formatted(formatted) => match mode {
-            FormatMode::Write => {
-                let mut writer = stdout().lock();
-                formatted
-                    .write(&mut writer)
-                    .map_err(|err| FormatCommandError::Write(path.map(Path::to_path_buf), err))?;
-            }
-            FormatMode::Check => {}
-            FormatMode::Diff => {
-                use std::io::Write;
-                write!(
-                    &mut stdout().lock(),
-                    "{}",
-                    source_kind.diff(formatted, path).unwrap()
-                )
-                .map_err(|err| FormatCommandError::Diff(path.map(Path::to_path_buf), err))?;
-            }
-        },
-        FormattedSource::Unchanged => {
-            // Write to stdout regardless of whether the source was formatted
-            if mode.is_write() {
-                let mut writer = stdout().lock();
-                source_kind
-                    .write(&mut writer)
-                    .map_err(|err| FormatCommandError::Write(path.map(Path::to_path_buf), err))?;
-            }
-        }
-    }
-
-    Ok(FormatResult::from(formatted))
-}

crates/ruff/src/commands/mod.rs

@@ -1,16 +0,0 @@
-pub(crate) mod completions;
-
-pub(crate) mod add_noqa;
-pub(crate) mod analyze_graph;
-pub(crate) mod check;
-pub(crate) mod check_stdin;
-pub(crate) mod clean;
-pub(crate) mod config;
-pub(crate) mod format;
-pub(crate) mod format_stdin;
-pub(crate) mod linter;
-pub(crate) mod rule;
-pub(crate) mod server;
-pub(crate) mod show_files;
-pub(crate) mod show_settings;
-pub(crate) mod version;

crates/ruff/src/commands/server.rs

@@ -1,14 +0,0 @@
-use std::num::NonZeroUsize;
-
-use crate::ExitStatus;
-use anyhow::Result;
-use ruff_server::Server;
-
-pub(crate) fn run_server(
-    worker_threads: NonZeroUsize,
-    preview: Option<bool>,
-) -> Result<ExitStatus> {
-    let server = Server::new(worker_threads, preview)?;
-
-    server.run().map(|()| ExitStatus::Success)
-}

crates/ruff/src/commands/show_settings.rs

@@ -1,41 +0,0 @@
-use std::io::Write;
-use std::path::PathBuf;
-
-use anyhow::{Result, bail};
-use itertools::Itertools;
-
-use ruff_workspace::resolver::{PyprojectConfig, ResolvedFile, python_files_in_path};
-
-use crate::args::ConfigArguments;
-
-/// Print the user-facing configuration settings.
-pub(crate) fn show_settings(
-    files: &[PathBuf],
-    pyproject_config: &PyprojectConfig,
-    config_arguments: &ConfigArguments,
-    writer: &mut impl Write,
-) -> Result<()> {
-    // Collect all files in the hierarchy.
-    let (paths, resolver) = python_files_in_path(files, pyproject_config, config_arguments)?;
-
-    // Print the list of files.
-    let Some(path) = paths
-        .into_iter()
-        .flatten()
-        .map(ResolvedFile::into_path)
-        .sorted_unstable()
-        .next()
-    else {
-        bail!("No files found under the given path");
-    };
-
-    let settings = resolver.resolve(&path);
-
-    writeln!(writer, "Resolved settings for: \"{}\"", path.display())?;
-    if let Some(settings_path) = pyproject_config.path.as_ref() {
-        writeln!(writer, "Settings path: \"{}\"", settings_path.display())?;
-    }
-    write!(writer, "{settings}")?;
-
-    Ok(())
-}

crates/ruff/src/commands/snapshots/ruff__commands__check__test__E902_E902.py.snap

@@ -1,7 +0,0 @@
----
-source: crates/ruff/src/commands/check.rs
----
-/home/ferris/project/code.py:1:1: E902 Permission denied (os error 13)
-/home/ferris/project/notebook.ipynb:1:1: E902 Permission denied (os error 13)
-/home/ferris/project/pyproject.toml:1:1: E902 Permission denied (os error 13)
-

crates/ruff/src/commands/version.rs

@@ -1,21 +0,0 @@
-use std::io::{self, BufWriter, Write};
-
-use anyhow::Result;
-
-use crate::args::HelpFormat;
-
-/// Display version information
-pub(crate) fn version(output_format: HelpFormat) -> Result<()> {
-    let mut stdout = BufWriter::new(io::stdout().lock());
-    let version_info = crate::version::version();
-
-    match output_format {
-        HelpFormat::Text => {
-            writeln!(stdout, "ruff {}", &version_info)?;
-        }
-        HelpFormat::Json => {
-            serde_json::to_writer_pretty(stdout, &version_info)?;
-        }
-    }
-    Ok(())
-}

crates/ruff/src/diagnostics.rs

@@ -1,511 +0,0 @@
-#![cfg_attr(target_family = "wasm", allow(dead_code))]
-
-use std::borrow::Cow;
-use std::fs::File;
-use std::io;
-use std::io::Write;
-use std::ops::{Add, AddAssign};
-use std::path::Path;
-
-use anyhow::{Context, Result};
-use colored::Colorize;
-use log::{debug, warn};
-use rustc_hash::FxHashMap;
-
-use ruff_linter::OldDiagnostic;
-use ruff_linter::codes::Rule;
-use ruff_linter::linter::{FixTable, FixerResult, LinterResult, ParseSource, lint_fix, lint_only};
-use ruff_linter::message::Message;
-use ruff_linter::package::PackageRoot;
-use ruff_linter::pyproject_toml::lint_pyproject_toml;
-use ruff_linter::settings::types::UnsafeFixes;
-use ruff_linter::settings::{LinterSettings, flags};
-use ruff_linter::source_kind::{SourceError, SourceKind};
-use ruff_linter::{IOError, fs};
-use ruff_notebook::{Notebook, NotebookError, NotebookIndex};
-use ruff_python_ast::{PySourceType, SourceType, TomlSourceType};
-use ruff_source_file::SourceFileBuilder;
-use ruff_text_size::TextRange;
-use ruff_workspace::Settings;
-
-use crate::cache::{Cache, FileCacheKey, LintCacheData};
-
-#[derive(Debug, Default, PartialEq)]
-pub(crate) struct Diagnostics {
-    pub(crate) messages: Vec<Message>,
-    pub(crate) fixed: FixMap,
-    pub(crate) notebook_indexes: FxHashMap<String, NotebookIndex>,
-}
-
-impl Diagnostics {
-    pub(crate) fn new(
-        messages: Vec<Message>,
-        notebook_indexes: FxHashMap<String, NotebookIndex>,
-    ) -> Self {
-        Self {
-            messages,
-            fixed: FixMap::default(),
-            notebook_indexes,
-        }
-    }
-
-    /// Generate [`Diagnostics`] based on a [`SourceError`].
-    pub(crate) fn from_source_error(
-        err: &SourceError,
-        path: Option<&Path>,
-        settings: &LinterSettings,
-    ) -> Self {
-        match err {
-            // IO errors.
-            SourceError::Io(_)
-            | SourceError::Notebook(NotebookError::Io(_) | NotebookError::Json(_)) => {
-                if settings.rules.enabled(Rule::IOError) {
-                    let name = path.map_or_else(|| "-".into(), Path::to_string_lossy);
-                    let source_file = SourceFileBuilder::new(name, "").finish();
-                    Self::new(
-                        vec![Message::from_diagnostic(
-                            OldDiagnostic::new(
-                                IOError {
-                                    message: err.to_string(),
-                                },
-                                TextRange::default(),
-                                &source_file,
-                            ),
-                            None,
-                        )],
-                        FxHashMap::default(),
-                    )
-                } else {
-                    match path {
-                        Some(path) => {
-                            warn!(
-                                "{}{}{} {err}",
-                                "Failed to lint ".bold(),
-                                fs::relativize_path(path).bold(),
-                                ":".bold()
-                            );
-                        }
-                        None => {
-                            warn!("{}{} {err}", "Failed to lint".bold(), ":".bold());
-                        }
-                    }
-
-                    Self::default()
-                }
-            }
-            // Syntax errors.
-            SourceError::Notebook(
-                NotebookError::InvalidJson(_)
-                | NotebookError::InvalidSchema(_)
-                | NotebookError::InvalidFormat(_),
-            ) => {
-                let name = path.map_or_else(|| "-".into(), Path::to_string_lossy);
-                let dummy = SourceFileBuilder::new(name, "").finish();
-                Self::new(
-                    vec![Message::syntax_error(err, TextRange::default(), dummy)],
-                    FxHashMap::default(),
-                )
-            }
-        }
-    }
-}
-
-impl Add for Diagnostics {
-    type Output = Diagnostics;
-
-    fn add(mut self, other: Self) -> Self::Output {
-        self += other;
-        self
-    }
-}
-
-impl AddAssign for Diagnostics {
-    fn add_assign(&mut self, other: Self) {
-        self.messages.extend(other.messages);
-        self.fixed += other.fixed;
-        self.notebook_indexes.extend(other.notebook_indexes);
-    }
-}
-
-/// A collection of fixes indexed by file path.
-#[derive(Debug, Default, PartialEq)]
-pub(crate) struct FixMap(FxHashMap<String, FixTable>);
-
-impl FixMap {
-    /// Returns `true` if there are no fixes in the map.
-    pub(crate) fn is_empty(&self) -> bool {
-        self.0.is_empty()
-    }
-
-    /// Returns an iterator over the fixes in the map, along with the file path.
-    pub(crate) fn iter(&self) -> impl Iterator<Item = (&String, &FixTable)> {
-        self.0.iter()
-    }
-
-    /// Returns an iterator over the fixes in the map.
-    pub(crate) fn values(&self) -> impl Iterator<Item = &FixTable> {
-        self.0.values()
-    }
-}
-
-impl FromIterator<(String, FixTable)> for FixMap {
-    fn from_iter<T: IntoIterator<Item = (String, FixTable)>>(iter: T) -> Self {
-        Self(
-            iter.into_iter()
-                .filter(|(_, fixes)| !fixes.is_empty())
-                .collect(),
-        )
-    }
-}
-
-impl AddAssign for FixMap {
-    fn add_assign(&mut self, rhs: Self) {
-        for (filename, fixed) in rhs.0 {
-            if fixed.is_empty() {
-                continue;
-            }
-            let fixed_in_file = self.0.entry(filename).or_default();
-            for (rule, name, count) in fixed.iter() {
-                if count > 0 {
-                    *fixed_in_file.entry(rule).or_default(name) += count;
-                }
-            }
-        }
-    }
-}
-
-/// Lint the source code at the given `Path`.
-pub(crate) fn lint_path(
-    path: &Path,
-    package: Option<PackageRoot<'_>>,
-    settings: &LinterSettings,
-    cache: Option<&Cache>,
-    noqa: flags::Noqa,
-    fix_mode: flags::FixMode,
-    unsafe_fixes: UnsafeFixes,
-) -> Result<Diagnostics> {
-    // Check the cache.
-    let caching = match cache {
-        Some(cache) if noqa.is_enabled() => {
-            let relative_path = cache
-                .relative_path(path)
-                .expect("wrong package cache for file");
-
-            let cache_key = FileCacheKey::from_path(path).context("Failed to create cache key")?;
-            let cached_diagnostics = cache
-                .get(relative_path, &cache_key)
-                .and_then(|entry| entry.to_diagnostics(path));
-            if let Some(diagnostics) = cached_diagnostics {
-                // `FixMode::Generate` and `FixMode::Diff` rely on side-effects (writing to disk,
-                // and writing the diff to stdout, respectively). If a file has diagnostics, we
-                // need to avoid reading from and writing to the cache in these modes.
-                if match fix_mode {
-                    flags::FixMode::Generate => true,
-                    flags::FixMode::Apply | flags::FixMode::Diff => {
-                        diagnostics.messages.is_empty() && diagnostics.fixed.is_empty()
-                    }
-                } {
-                    return Ok(diagnostics);
-                }
-            }
-
-            // Stash the file metadata for later so when we update the cache it reflects the prerun
-            // information
-            Some((cache, relative_path, cache_key))
-        }
-        _ => None,
-    };
-
-    debug!("Checking: {}", path.display());
-
-    let source_type = match settings.extension.get(path).map(PySourceType::from) {
-        Some(source_type) => source_type,
-        None => match SourceType::from(path) {
-            SourceType::Toml(TomlSourceType::Pyproject) => {
-                let messages = if settings
-                    .rules
-                    .iter_enabled()
-                    .any(|rule_code| rule_code.lint_source().is_pyproject_toml())
-                {
-                    let contents = match std::fs::read_to_string(path).map_err(SourceError::from) {
-                        Ok(contents) => contents,
-                        Err(err) => {
-                            return Ok(Diagnostics::from_source_error(&err, Some(path), settings));
-                        }
-                    };
-                    let source_file =
-                        SourceFileBuilder::new(path.to_string_lossy(), contents).finish();
-                    lint_pyproject_toml(&source_file, settings)
-                } else {
-                    vec![]
-                };
-                return Ok(Diagnostics {
-                    messages,
-                    ..Diagnostics::default()
-                });
-            }
-            SourceType::Toml(_) => return Ok(Diagnostics::default()),
-            SourceType::Python(source_type) => source_type,
-        },
-    };
-
-    // Extract the sources from the file.
-    let source_kind = match SourceKind::from_path(path, source_type) {
-        Ok(Some(source_kind)) => source_kind,
-        Ok(None) => return Ok(Diagnostics::default()),
-        Err(err) => {
-            return Ok(Diagnostics::from_source_error(&err, Some(path), settings));
-        }
-    };
-
-    // Lint the file.
-    let (result, transformed, fixed) =
-        if matches!(fix_mode, flags::FixMode::Apply | flags::FixMode::Diff) {
-            if let Ok(FixerResult {
-                result,
-                transformed,
-                fixed,
-            }) = lint_fix(
-                path,
-                package,
-                noqa,
-                unsafe_fixes,
-                settings,
-                &source_kind,
-                source_type,
-            ) {
-                if !fixed.is_empty() {
-                    match fix_mode {
-                        flags::FixMode::Apply => transformed.write(&mut File::create(path)?)?,
-                        flags::FixMode::Diff => {
-                            write!(
-                                &mut io::stdout().lock(),
-                                "{}",
-                                source_kind.diff(&transformed, Some(path)).unwrap()
-                            )?;
-                        }
-                        flags::FixMode::Generate => {}
-                    }
-                }
-                let transformed = if let Cow::Owned(transformed) = transformed {
-                    transformed
-                } else {
-                    source_kind
-                };
-                (result, transformed, fixed)
-            } else {
-                // If we fail to fix, lint the original source code.
-                let result = lint_only(
-                    path,
-                    package,
-                    settings,
-                    noqa,
-                    &source_kind,
-                    source_type,
-                    ParseSource::None,
-                );
-                let transformed = source_kind;
-                let fixed = FixTable::default();
-                (result, transformed, fixed)
-            }
-        } else {
-            let result = lint_only(
-                path,
-                package,
-                settings,
-                noqa,
-                &source_kind,
-                source_type,
-                ParseSource::None,
-            );
-            let transformed = source_kind;
-            let fixed = FixTable::default();
-            (result, transformed, fixed)
-        };
-
-    let has_error = result.has_syntax_errors();
-    let messages = result.messages;
-
-    if let Some((cache, relative_path, key)) = caching {
-        // We don't cache parsing errors.
-        if !has_error {
-            // `FixMode::Apply` and `FixMode::Diff` rely on side-effects (writing to disk,
-            // and writing the diff to stdout, respectively). If a file has diagnostics, we
-            // need to avoid reading from and writing to the cache in these modes.
-            if match fix_mode {
-                flags::FixMode::Generate => true,
-                flags::FixMode::Apply | flags::FixMode::Diff => {
-                    messages.is_empty() && fixed.is_empty()
-                }
-            } {
-                cache.update_lint(
-                    relative_path.to_owned(),
-                    &key,
-                    LintCacheData::from_messages(
-                        &messages,
-                        transformed.as_ipy_notebook().map(Notebook::index).cloned(),
-                    ),
-                );
-            }
-        }
-    }
-
-    let notebook_indexes = if let SourceKind::IpyNotebook(notebook) = transformed {
-        FxHashMap::from_iter([(path.to_string_lossy().to_string(), notebook.into_index())])
-    } else {
-        FxHashMap::default()
-    };
-
-    Ok(Diagnostics {
-        messages,
-        fixed: FixMap::from_iter([(fs::relativize_path(path), fixed)]),
-        notebook_indexes,
-    })
-}
-
-/// Generate `Diagnostic`s from source code content derived from stdin.
-pub(crate) fn lint_stdin(
-    path: Option<&Path>,
-    package: Option<PackageRoot<'_>>,
-    contents: String,
-    settings: &Settings,
-    noqa: flags::Noqa,
-    fix_mode: flags::FixMode,
-) -> Result<Diagnostics> {
-    let source_type = match path.and_then(|path| settings.linter.extension.get(path)) {
-        None => match path.map(SourceType::from).unwrap_or_default() {
-            SourceType::Python(source_type) => source_type,
-
-            SourceType::Toml(source_type) if source_type.is_pyproject() => {
-                if !settings
-                    .linter
-                    .rules
-                    .iter_enabled()
-                    .any(|rule_code| rule_code.lint_source().is_pyproject_toml())
-                {
-                    return Ok(Diagnostics::default());
-                }
-
-                let path = path.unwrap();
-                let source_file =
-                    SourceFileBuilder::new(path.to_string_lossy(), contents.clone()).finish();
-
-                match fix_mode {
-                    flags::FixMode::Diff | flags::FixMode::Generate => {}
-                    flags::FixMode::Apply => write!(&mut io::stdout().lock(), "{contents}")?,
-                }
-
-                return Ok(Diagnostics {
-                    messages: lint_pyproject_toml(&source_file, &settings.linter),
-                    fixed: FixMap::from_iter([(fs::relativize_path(path), FixTable::default())]),
-                    notebook_indexes: FxHashMap::default(),
-                });
-            }
-
-            SourceType::Toml(_) => return Ok(Diagnostics::default()),
-        },
-        Some(language) => PySourceType::from(language),
-    };
-
-    // Extract the sources from the file.
-    let source_kind = match SourceKind::from_source_code(contents, source_type) {
-        Ok(Some(source_kind)) => source_kind,
-        Ok(None) => return Ok(Diagnostics::default()),
-        Err(err) => {
-            return Ok(Diagnostics::from_source_error(&err, path, &settings.linter));
-        }
-    };
-
-    // Lint the inputs.
-    let (LinterResult { messages, .. }, transformed, fixed) =
-        if matches!(fix_mode, flags::FixMode::Apply | flags::FixMode::Diff) {
-            if let Ok(FixerResult {
-                result,
-                transformed,
-                fixed,
-            }) = lint_fix(
-                path.unwrap_or_else(|| Path::new("-")),
-                package,
-                noqa,
-                settings.unsafe_fixes,
-                &settings.linter,
-                &source_kind,
-                source_type,
-            ) {
-                match fix_mode {
-                    flags::FixMode::Apply => {
-                        // Write the contents to stdout, regardless of whether any errors were fixed.
-                        transformed.write(&mut io::stdout().lock())?;
-                    }
-                    flags::FixMode::Diff => {
-                        // But only write a diff if it's non-empty.
-                        if !fixed.is_empty() {
-                            write!(
-                                &mut io::stdout().lock(),
-                                "{}",
-                                source_kind.diff(&transformed, path).unwrap()
-                            )?;
-                        }
-                    }
-                    flags::FixMode::Generate => {}
-                }
-                let transformed = if let Cow::Owned(transformed) = transformed {
-                    transformed
-                } else {
-                    source_kind
-                };
-                (result, transformed, fixed)
-            } else {
-                // If we fail to fix, lint the original source code.
-                let result = lint_only(
-                    path.unwrap_or_else(|| Path::new("-")),
-                    package,
-                    &settings.linter,
-                    noqa,
-                    &source_kind,
-                    source_type,
-                    ParseSource::None,
-                );
-
-                // Write the contents to stdout anyway.
-                if fix_mode.is_apply() {
-                    source_kind.write(&mut io::stdout().lock())?;
-                }
-
-                let transformed = source_kind;
-                let fixed = FixTable::default();
-                (result, transformed, fixed)
-            }
-        } else {
-            let result = lint_only(
-                path.unwrap_or_else(|| Path::new("-")),
-                package,
-                &settings.linter,
-                noqa,
-                &source_kind,
-                source_type,
-                ParseSource::None,
-            );
-            let transformed = source_kind;
-            let fixed = FixTable::default();
-            (result, transformed, fixed)
-        };
-
-    let notebook_indexes = if let SourceKind::IpyNotebook(notebook) = transformed {
-        FxHashMap::from_iter([(
-            path.map_or_else(|| "-".into(), |path| path.to_string_lossy().to_string()),
-            notebook.into_index(),
-        )])
-    } else {
-        FxHashMap::default()
-    };
-
-    Ok(Diagnostics {
-        messages,
-        fixed: FixMap::from_iter([(
-            fs::relativize_path(path.unwrap_or_else(|| Path::new("-"))),
-            fixed,
-        )]),
-        notebook_indexes,
-    })
-}

crates/ruff/src/lib.rs

@@ -1,606 +0,0 @@
-#![allow(clippy::print_stdout)]
-
-use std::fs::File;
-use std::io::{self, BufWriter, Write, stdout};
-use std::num::NonZeroUsize;
-use std::path::{Path, PathBuf};
-use std::process::ExitCode;
-use std::sync::mpsc::channel;
-
-use anyhow::Result;
-use clap::CommandFactory;
-use colored::Colorize;
-use log::warn;
-use notify::{RecursiveMode, Watcher, recommended_watcher};
-
-use args::{GlobalConfigArgs, ServerCommand};
-use ruff_linter::logging::{LogLevel, set_up_logging};
-use ruff_linter::settings::flags::FixMode;
-use ruff_linter::settings::types::OutputFormat;
-use ruff_linter::{fs, warn_user, warn_user_once};
-use ruff_workspace::Settings;
-
-use crate::args::{
-    AnalyzeCommand, AnalyzeGraphCommand, Args, CheckCommand, Command, FormatCommand,
-};
-use crate::printer::{Flags as PrinterFlags, Printer};
-
-pub mod args;
-mod cache;
-mod commands;
-mod diagnostics;
-mod printer;
-pub mod resolve;
-mod stdin;
-mod version;
-
-#[derive(Copy, Clone)]
-pub enum ExitStatus {
-    /// Linting was successful and there were no linting errors.
-    Success,
-    /// Linting was successful but there were linting errors.
-    Failure,
-    /// Linting failed.
-    Error,
-}
-
-impl From<ExitStatus> for ExitCode {
-    fn from(status: ExitStatus) -> Self {
-        match status {
-            ExitStatus::Success => ExitCode::from(0),
-            ExitStatus::Failure => ExitCode::from(1),
-            ExitStatus::Error => ExitCode::from(2),
-        }
-    }
-}
-
-#[derive(Copy, Clone, Debug, Eq, PartialEq)]
-enum ChangeKind {
-    Configuration,
-    SourceFile,
-}
-
-/// Return the [`ChangeKind`] based on the list of modified file paths.
-///
-/// Returns `None` if no relevant changes were detected.
-fn change_detected(event: &notify::Event) -> Option<ChangeKind> {
-    // If any `.toml` files were modified, return `ChangeKind::Configuration`. Otherwise, return
-    // `ChangeKind::SourceFile` if any `.py`, `.pyi`, `.pyw`, or `.ipynb` files were modified.
-    let mut source_file = false;
-
-    if event.kind.is_access() || event.kind.is_other() {
-        return None;
-    }
-
-    if event.need_rescan() {
-        return Some(ChangeKind::Configuration);
-    }
-    for path in &event.paths {
-        if let Some(suffix) = path.extension() {
-            match suffix.to_str() {
-                Some("toml") => {
-                    return Some(ChangeKind::Configuration);
-                }
-                Some("py" | "pyi" | "pyw" | "ipynb") => source_file = true,
-                _ => {}
-            }
-        }
-    }
-    if source_file {
-        return Some(ChangeKind::SourceFile);
-    }
-    None
-}
-
-/// Returns true if the command should read from standard input.
-fn is_stdin(files: &[PathBuf], stdin_filename: Option<&Path>) -> bool {
-    // If the user provided a `--stdin-filename`, always read from standard input.
-    if stdin_filename.is_some() {
-        if let Some(file) = files.iter().find(|file| file.as_path() != Path::new("-")) {
-            warn_user_once!(
-                "Ignoring file {} in favor of standard input.",
-                file.display()
-            );
-        }
-        return true;
-    }
-
-    let [file] = files else {
-        return false;
-    };
-    // If the user provided exactly `-`, read from standard input.
-    file == Path::new("-")
-}
-
-/// Returns the default set of files if none are provided, otherwise returns provided files.
-fn resolve_default_files(files: Vec<PathBuf>, is_stdin: bool) -> Vec<PathBuf> {
-    if files.is_empty() {
-        if is_stdin {
-            vec![Path::new("-").to_path_buf()]
-        } else {
-            vec![Path::new(".").to_path_buf()]
-        }
-    } else {
-        files
-    }
-}
-
-pub fn run(
-    Args {
-        command,
-        global_options,
-    }: Args,
-) -> Result<ExitStatus> {
-    {
-        let default_panic_hook = std::panic::take_hook();
-        std::panic::set_hook(Box::new(move |info| {
-            #[expect(clippy::print_stderr)]
-            {
-                eprintln!(
-                    r#"
-{}{} {} If you could open an issue at:
-
-    https://github.com/astral-sh/ruff/issues/new?title=%5BPanic%5D
-
-...quoting the executed command, along with the relevant file contents and `pyproject.toml` settings, we'd be very appreciative!
-"#,
-                    "error".red().bold(),
-                    ":".bold(),
-                    "Ruff crashed.".bold(),
-                );
-            }
-            default_panic_hook(info);
-        }));
-    }
-
-    // Don't set up logging for the server command, as it has its own logging setup
-    // and setting the global logger can only be done once.
-    if !matches!(command, Command::Server { .. }) {
-        set_up_logging(global_options.log_level())?;
-    }
-
-    match command {
-        Command::Version { output_format } => {
-            commands::version::version(output_format)?;
-            Ok(ExitStatus::Success)
-        }
-        Command::Rule {
-            rule,
-            all,
-            output_format,
-        } => {
-            if all {
-                commands::rule::rules(output_format)?;
-            }
-            if let Some(rule) = rule {
-                commands::rule::rule(rule, output_format)?;
-            }
-            Ok(ExitStatus::Success)
-        }
-        Command::Config {
-            option,
-            output_format,
-        } => {
-            commands::config::config(option.as_deref(), output_format)?;
-            Ok(ExitStatus::Success)
-        }
-        Command::Linter { output_format } => {
-            commands::linter::linter(output_format)?;
-            Ok(ExitStatus::Success)
-        }
-        Command::Clean => {
-            commands::clean::clean(global_options.log_level())?;
-            Ok(ExitStatus::Success)
-        }
-        Command::GenerateShellCompletion { shell } => {
-            shell.generate(&mut Args::command(), &mut stdout());
-            Ok(ExitStatus::Success)
-        }
-        Command::Check(args) => check(args, global_options),
-        Command::Format(args) => format(args, global_options),
-        Command::Server(args) => server(args),
-        Command::Analyze(AnalyzeCommand::Graph(args)) => analyze_graph(args, global_options),
-    }
-}
-
-fn format(args: FormatCommand, global_options: GlobalConfigArgs) -> Result<ExitStatus> {
-    let (cli, config_arguments) = args.partition(global_options)?;
-
-    if is_stdin(&cli.files, cli.stdin_filename.as_deref()) {
-        commands::format_stdin::format_stdin(&cli, &config_arguments)
-    } else {
-        commands::format::format(cli, &config_arguments)
-    }
-}
-
-fn analyze_graph(
-    args: AnalyzeGraphCommand,
-    global_options: GlobalConfigArgs,
-) -> Result<ExitStatus> {
-    let (cli, config_arguments) = args.partition(global_options)?;
-
-    commands::analyze_graph::analyze_graph(cli, &config_arguments)
-}
-
-fn server(args: ServerCommand) -> Result<ExitStatus> {
-    let four = NonZeroUsize::new(4).unwrap();
-
-    // by default, we set the number of worker threads to `num_cpus`, with a maximum of 4.
-    let worker_threads = std::thread::available_parallelism()
-        .unwrap_or(four)
-        .min(four);
-    commands::server::run_server(worker_threads, args.resolve_preview())
-}
-
-pub fn check(args: CheckCommand, global_options: GlobalConfigArgs) -> Result<ExitStatus> {
-    let (cli, config_arguments) = args.partition(global_options)?;
-
-    // Construct the "default" settings. These are used when no `pyproject.toml`
-    // files are present, or files are injected from outside of the hierarchy.
-    let pyproject_config = resolve::resolve(&config_arguments, cli.stdin_filename.as_deref())?;
-
-    let mut writer: Box<dyn Write> = match cli.output_file {
-        Some(path) if !cli.watch => {
-            colored::control::set_override(false);
-            if let Some(parent) = path.parent() {
-                std::fs::create_dir_all(parent)?;
-            }
-            let file = File::create(path)?;
-            Box::new(BufWriter::new(file))
-        }
-        _ => Box::new(BufWriter::new(io::stdout())),
-    };
-    let stderr_writer = Box::new(BufWriter::new(io::stderr()));
-
-    let is_stdin = is_stdin(&cli.files, cli.stdin_filename.as_deref());
-    let files = resolve_default_files(cli.files, is_stdin);
-
-    if cli.show_settings {
-        commands::show_settings::show_settings(
-            &files,
-            &pyproject_config,
-            &config_arguments,
-            &mut writer,
-        )?;
-        return Ok(ExitStatus::Success);
-    }
-    if cli.show_files {
-        commands::show_files::show_files(
-            &files,
-            &pyproject_config,
-            &config_arguments,
-            &mut writer,
-        )?;
-        return Ok(ExitStatus::Success);
-    }
-
-    // Extract options that are included in `Settings`, but only apply at the top
-    // level.
-    let Settings {
-        fix,
-        fix_only,
-        unsafe_fixes,
-        output_format,
-        show_fixes,
-        ..
-    } = pyproject_config.settings;
-
-    // Fix rules are as follows:
-    // - By default, generate all fixes, but don't apply them to the filesystem.
-    // - If `--fix` or `--fix-only` is set, apply applicable fixes to the filesystem (or
-    //   print them to stdout, if we're reading from stdin).
-    // - If `--diff` or `--fix-only` are set, don't print any violations (only applicable fixes)
-    // - By default, applicable fixes only include [`Applicability::Automatic`], but if
-    //   `--unsafe-fixes` is set, then [`Applicability::Suggested`] fixes are included.
-
-    let fix_mode = if cli.diff {
-        FixMode::Diff
-    } else if fix || fix_only {
-        FixMode::Apply
-    } else {
-        FixMode::Generate
-    };
-
-    let cache = !cli.no_cache;
-    let noqa = !cli.ignore_noqa;
-    let mut printer_flags = PrinterFlags::empty();
-    if !(cli.diff || fix_only) {
-        printer_flags |= PrinterFlags::SHOW_VIOLATIONS;
-    }
-    if show_fixes {
-        printer_flags |= PrinterFlags::SHOW_FIX_SUMMARY;
-    }
-
-    #[cfg(debug_assertions)]
-    if cache {
-        // `--no-cache` doesn't respect code changes, and so is often confusing during
-        // development.
-        warn_user!("Detected debug build without --no-cache.");
-    }
-
-    if cli.add_noqa {
-        if !fix_mode.is_generate() {
-            warn_user!("--fix is incompatible with --add-noqa.");
-        }
-        let modifications =
-            commands::add_noqa::add_noqa(&files, &pyproject_config, &config_arguments)?;
-        if modifications > 0 && config_arguments.log_level >= LogLevel::Default {
-            let s = if modifications == 1 { "" } else { "s" };
-            #[expect(clippy::print_stderr)]
-            {
-                eprintln!("Added {modifications} noqa directive{s}.");
-            }
-        }
-        return Ok(ExitStatus::Success);
-    }
-
-    let printer = Printer::new(
-        output_format,
-        config_arguments.log_level,
-        fix_mode,
-        unsafe_fixes,
-        printer_flags,
-    );
-
-    // the settings should already be combined with the CLI overrides at this point
-    // TODO(jane): let's make this `PreviewMode`
-    // TODO: this should reference the global preview mode once https://github.com/astral-sh/ruff/issues/8232
-    //   is resolved.
-    let preview = pyproject_config.settings.linter.preview.is_enabled();
-
-    if cli.watch {
-        if output_format != OutputFormat::default() {
-            warn_user!(
-                "`--output-format {}` is always used in watch mode.",
-                OutputFormat::default()
-            );
-        }
-
-        // Configure the file watcher.
-        let (tx, rx) = channel();
-        let mut watcher = recommended_watcher(tx)?;
-        for file in &files {
-            watcher.watch(file, RecursiveMode::Recursive)?;
-        }
-        if let Some(file) = pyproject_config.path.as_ref() {
-            watcher.watch(file, RecursiveMode::Recursive)?;
-        }
-
-        // Perform an initial run instantly.
-        Printer::clear_screen()?;
-        printer.write_to_user("Starting linter in watch mode...\n");
-
-        let messages = commands::check::check(
-            &files,
-            &pyproject_config,
-            &config_arguments,
-            cache.into(),
-            noqa.into(),
-            fix_mode,
-            unsafe_fixes,
-        )?;
-        printer.write_continuously(&mut writer, &messages, preview)?;
-
-        // In watch mode, we may need to re-resolve the configuration.
-        // TODO(charlie): Re-compute other derivative values, like the `printer`.
-        let mut pyproject_config = pyproject_config;
-
-        loop {
-            match rx.recv() {
-                Ok(event) => {
-                    let Some(change_kind) = change_detected(&event?) else {
-                        continue;
-                    };
-
-                    if matches!(change_kind, ChangeKind::Configuration) {
-                        pyproject_config =
-                            resolve::resolve(&config_arguments, cli.stdin_filename.as_deref())?;
-                    }
-                    Printer::clear_screen()?;
-                    printer.write_to_user("File change detected...\n");
-
-                    let messages = commands::check::check(
-                        &files,
-                        &pyproject_config,
-                        &config_arguments,
-                        cache.into(),
-                        noqa.into(),
-                        fix_mode,
-                        unsafe_fixes,
-                    )?;
-                    printer.write_continuously(&mut writer, &messages, preview)?;
-                }
-                Err(err) => return Err(err.into()),
-            }
-        }
-    } else {
-        // Generate lint violations.
-        let diagnostics = if is_stdin {
-            commands::check_stdin::check_stdin(
-                cli.stdin_filename.map(fs::normalize_path).as_deref(),
-                &pyproject_config,
-                &config_arguments,
-                noqa.into(),
-                fix_mode,
-            )?
-        } else {
-            commands::check::check(
-                &files,
-                &pyproject_config,
-                &config_arguments,
-                cache.into(),
-                noqa.into(),
-                fix_mode,
-                unsafe_fixes,
-            )?
-        };
-
-        // Always try to print violations (though the printer itself may suppress output)
-        // If we're writing fixes via stdin, the transformed source code goes to the writer
-        // so send the summary to stderr instead
-        let mut summary_writer = if is_stdin && matches!(fix_mode, FixMode::Apply | FixMode::Diff) {
-            stderr_writer
-        } else {
-            writer
-        };
-        if cli.statistics {
-            printer.write_statistics(&diagnostics, &mut summary_writer)?;
-        } else {
-            printer.write_once(&diagnostics, &mut summary_writer)?;
-        }
-
-        if !cli.exit_zero {
-            if cli.diff {
-                // If we're printing a diff, we always want to exit non-zero if there are
-                // any fixable violations (since we've printed the diff, but not applied the
-                // fixes).
-                if !diagnostics.fixed.is_empty() {
-                    return Ok(ExitStatus::Failure);
-                }
-            } else if fix_only {
-                // If we're only fixing, we want to exit zero (since we've fixed all fixable
-                // violations), unless we're explicitly asked to exit non-zero on fix.
-                if cli.exit_non_zero_on_fix {
-                    if !diagnostics.fixed.is_empty() {
-                        return Ok(ExitStatus::Failure);
-                    }
-                }
-            } else {
-                // If we're running the linter (not just fixing), we want to exit non-zero if
-                // there are any violations, unless we're explicitly asked to exit zero on
-                // fix.
-                if cli.exit_non_zero_on_fix {
-                    if !diagnostics.fixed.is_empty() || !diagnostics.messages.is_empty() {
-                        return Ok(ExitStatus::Failure);
-                    }
-                } else {
-                    if !diagnostics.messages.is_empty() {
-                        return Ok(ExitStatus::Failure);
-                    }
-                }
-            }
-        }
-    }
-    Ok(ExitStatus::Success)
-}
-
-#[cfg(test)]
-mod test_file_change_detector {
-    use std::path::PathBuf;
-
-    use crate::{ChangeKind, change_detected};
-
-    #[test]
-    fn detect_correct_file_change() {
-        assert_eq!(
-            Some(ChangeKind::Configuration),
-            change_detected(&notify::Event {
-                kind: notify::EventKind::Create(notify::event::CreateKind::File),
-                paths: vec![
-                    PathBuf::from("tmp/pyproject.toml"),
-                    PathBuf::from("tmp/bin/ruff.rs"),
-                ],
-                attrs: notify::event::EventAttributes::default(),
-            }),
-        );
-        assert_eq!(
-            Some(ChangeKind::Configuration),
-            change_detected(&notify::Event {
-                kind: notify::EventKind::Create(notify::event::CreateKind::File),
-                paths: vec![
-                    PathBuf::from("pyproject.toml"),
-                    PathBuf::from("tmp/bin/ruff.rs"),
-                ],
-                attrs: notify::event::EventAttributes::default(),
-            }),
-        );
-        assert_eq!(
-            Some(ChangeKind::Configuration),
-            change_detected(&notify::Event {
-                kind: notify::EventKind::Create(notify::event::CreateKind::File),
-                paths: vec![
-                    PathBuf::from("tmp1/tmp2/tmp3/pyproject.toml"),
-                    PathBuf::from("tmp/bin/ruff.rs"),
-                ],
-                attrs: notify::event::EventAttributes::default(),
-            }),
-        );
-        assert_eq!(
-            Some(ChangeKind::Configuration),
-            change_detected(&notify::Event {
-                kind: notify::EventKind::Create(notify::event::CreateKind::File),
-                paths: vec![
-                    PathBuf::from("tmp/ruff.toml"),
-                    PathBuf::from("tmp/bin/ruff.rs"),
-                ],
-                attrs: notify::event::EventAttributes::default(),
-            }),
-        );
-        assert_eq!(
-            Some(ChangeKind::Configuration),
-            change_detected(&notify::Event {
-                kind: notify::EventKind::Create(notify::event::CreateKind::File),
-                paths: vec![
-                    PathBuf::from("tmp/.ruff.toml"),
-                    PathBuf::from("tmp/bin/ruff.rs"),
-                ],
-                attrs: notify::event::EventAttributes::default(),
-            }),
-        );
-        assert_eq!(
-            Some(ChangeKind::SourceFile),
-            change_detected(&notify::Event {
-                kind: notify::EventKind::Create(notify::event::CreateKind::File),
-                paths: vec![
-                    PathBuf::from("tmp/rule.py"),
-                    PathBuf::from("tmp/bin/ruff.rs"),
-                ],
-                attrs: notify::event::EventAttributes::default(),
-            }),
-        );
-        assert_eq!(
-            Some(ChangeKind::SourceFile),
-            change_detected(&notify::Event {
-                kind: notify::EventKind::Create(notify::event::CreateKind::File),
-                paths: vec![
-                    PathBuf::from("tmp/rule.pyi"),
-                    PathBuf::from("tmp/bin/ruff.rs"),
-                ],
-                attrs: notify::event::EventAttributes::default(),
-            }),
-        );
-        assert_eq!(
-            Some(ChangeKind::Configuration),
-            change_detected(&notify::Event {
-                kind: notify::EventKind::Create(notify::event::CreateKind::File),
-                paths: vec![
-                    PathBuf::from("pyproject.toml"),
-                    PathBuf::from("tmp/rule.py"),
-                ],
-                attrs: notify::event::EventAttributes::default(),
-            }),
-        );
-        assert_eq!(
-            Some(ChangeKind::Configuration),
-            change_detected(&notify::Event {
-                kind: notify::EventKind::Create(notify::event::CreateKind::File),
-                paths: vec![
-                    PathBuf::from("tmp/rule.py"),
-                    PathBuf::from("pyproject.toml"),
-                ],
-                attrs: notify::event::EventAttributes::default(),
-            }),
-        );
-        assert_eq!(
-            None,
-            change_detected(&notify::Event {
-                kind: notify::EventKind::Create(notify::event::CreateKind::File),
-                paths: vec![
-                    PathBuf::from("tmp/rule.js"),
-                    PathBuf::from("tmp/bin/ruff.rs"),
-                ],
-                attrs: notify::event::EventAttributes::default(),
-            }),
-        );
-    }
-}