[ty] Move node_reachability from UseDefMap to SemanticIndex

.github/workflows/ci.yaml

@@ -240,11 +240,11 @@ jobs:
       - name: "Install mold"
         uses: rui314/setup-mold@85c79d00377f0d32cdbae595a46de6f7c2fa6599 # v1
       - name: "Install cargo nextest"
-        uses: taiki-e/install-action@c07504cae06f832dc8de08911c9a9c5cddb0d2d3 # v2.56.13
+        uses: taiki-e/install-action@f3a27926ea13d7be3ee2f4cbb925883cf9442b56 # v2.56.7
         with:
           tool: cargo-nextest
       - name: "Install cargo insta"
-        uses: taiki-e/install-action@c07504cae06f832dc8de08911c9a9c5cddb0d2d3 # v2.56.13
+        uses: taiki-e/install-action@f3a27926ea13d7be3ee2f4cbb925883cf9442b56 # v2.56.7
         with:
           tool: cargo-insta
       - name: ty mdtests (GitHub annotations)
@@ -298,11 +298,11 @@ jobs:
       - name: "Install mold"
         uses: rui314/setup-mold@85c79d00377f0d32cdbae595a46de6f7c2fa6599 # v1
       - name: "Install cargo nextest"
-        uses: taiki-e/install-action@c07504cae06f832dc8de08911c9a9c5cddb0d2d3 # v2.56.13
+        uses: taiki-e/install-action@f3a27926ea13d7be3ee2f4cbb925883cf9442b56 # v2.56.7
         with:
           tool: cargo-nextest
       - name: "Install cargo insta"
-        uses: taiki-e/install-action@c07504cae06f832dc8de08911c9a9c5cddb0d2d3 # v2.56.13
+        uses: taiki-e/install-action@f3a27926ea13d7be3ee2f4cbb925883cf9442b56 # v2.56.7
         with:
           tool: cargo-insta
       - name: "Run tests"
@@ -325,7 +325,7 @@ jobs:
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install cargo nextest"
-        uses: taiki-e/install-action@c07504cae06f832dc8de08911c9a9c5cddb0d2d3 # v2.56.13
+        uses: taiki-e/install-action@f3a27926ea13d7be3ee2f4cbb925883cf9442b56 # v2.56.7
         with:
           tool: cargo-nextest
       - name: "Run tests"
@@ -903,7 +903,7 @@ jobs:
         run: rustup show
 
       - name: "Install codspeed"
-        uses: taiki-e/install-action@c07504cae06f832dc8de08911c9a9c5cddb0d2d3 # v2.56.13
+        uses: taiki-e/install-action@f3a27926ea13d7be3ee2f4cbb925883cf9442b56 # v2.56.7
         with:
           tool: cargo-codspeed
 
@@ -911,7 +911,7 @@ jobs:
         run: cargo codspeed build --features "codspeed,instrumented" --no-default-features -p ruff_benchmark
 
       - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@c28fe9fbe7d57a3da1b7834ae3761c1d8217612d # v3.7.0
+        uses: CodSpeedHQ/action@0010eb0ca6e89b80c88e8edaaa07cfe5f3e6664d # v3.5.0
         with:
           run: cargo codspeed run
           token: ${{ secrets.CODSPEED_TOKEN }}
@@ -936,7 +936,7 @@ jobs:
         run: rustup show
 
       - name: "Install codspeed"
-        uses: taiki-e/install-action@c07504cae06f832dc8de08911c9a9c5cddb0d2d3 # v2.56.13
+        uses: taiki-e/install-action@f3a27926ea13d7be3ee2f4cbb925883cf9442b56 # v2.56.7
         with:
           tool: cargo-codspeed
 
@@ -944,7 +944,7 @@ jobs:
         run: cargo codspeed build --features "codspeed,walltime" --no-default-features -p ruff_benchmark
 
       - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@c28fe9fbe7d57a3da1b7834ae3761c1d8217612d # v3.7.0
+        uses: CodSpeedHQ/action@0010eb0ca6e89b80c88e8edaaa07cfe5f3e6664d # v3.5.0
         with:
           run: cargo codspeed run
           token: ${{ secrets.CODSPEED_TOKEN }}

.github/workflows/sync_typeshed.yaml

@@ -1,25 +1,5 @@
 name: Sync typeshed
 
-# How this works:
-#
-# 1. A Linux worker:
-#    a. Checks out Ruff and typeshed
-#    b. Deletes the vendored typeshed stdlib stubs from Ruff
-#    c. Copies the latest versions of the stubs from typeshed
-#    d. Uses docstring-adder to sync all docstrings available on Linux
-#    e. Creates a new branch on the upstream astral-sh/ruff repository
-#    f. Commits the changes it's made and pushes them to the new upstream branch
-# 2. Once the Linux worker is done, a Windows worker:
-#    a. Checks out the branch created by the Linux worker
-#    b. Syncs all docstrings available on Windows that are not available on Linux
-#    c. Commits the changes and pushes them to the same upstream branch
-# 3. Once the Windows worker is done, a MacOS worker:
-#    a. Checks out the branch created by the Linux worker
-#    b. Syncs all docstrings available on MacOS that are not available on Linux or Windows
-#    c. Commits the changes and pushes them to the same upstream branch
-#    d. Creates a PR against the `main` branch using the branch all three workers have pushed to
-# 4. If any of steps 1-3 failed, an issue is created in the `astral-sh/ruff` repository
-
 on:
   workflow_dispatch:
   schedule:
@@ -30,13 +10,7 @@ env:
   FORCE_COLOR: 1
   GH_TOKEN: ${{ github.token }}
 
-  # The name of the upstream branch that the first worker creates,
-  # and which all three workers push to.
-  UPSTREAM_BRANCH: typeshedbot/sync-typeshed
-
 jobs:
-  # Sync typeshed stubs, and sync all docstrings available on Linux.
-  # Push the changes to a new branch on the upstream repository.
   sync:
     name: Sync typeshed
     runs-on: ubuntu-latest
@@ -45,6 +19,7 @@ jobs:
     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
@@ -61,130 +36,37 @@ jobs:
         run: |
           git config --global user.name typeshedbot
           git config --global user.email '<>'
-      - uses: astral-sh/setup-uv@bd01e18f51369d5a26f1651c3cb451d3417e3bba # v6.3.1
-      - name: Sync typeshed stubs
+      - 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
-
-          # The pyproject.toml file is needed by a later job for the black configuration.
-          # It's deleted before creating the PR.
-          cp typeshed/pyproject.toml 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: ${{ steps.sync.outcome == 'success' }}
+        run: |
           cd ruff
           git checkout -b typeshedbot/sync-typeshed
           git add .
-          git commit -m "Sync typeshed. Source commit: https://github.com/python/typeshed/commit/$(git -C ../typeshed rev-parse HEAD)" --allow-empty
-      - name: Sync Linux docstrings
-        if: ${{ success() }}
+          git diff --staged --quiet || git commit -m "Sync typeshed. Source commit: https://github.com/python/typeshed/commit/$(git -C ../typeshed rev-parse HEAD)"
+      - name: Create a PR
+        if: ${{ steps.sync.outcome == 'success' && steps.commit.outcome == 'success' }}
         run: |
           cd ruff
-          ./scripts/codemod_docstrings.sh
-          git commit -am "Sync Linux docstrings" --allow-empty
-      - name: Push the changes
-        id: commit
-        if: ${{ success() }}
-        run: git -C ruff push --force --set-upstream origin "${UPSTREAM_BRANCH}"
-
-  # Checkout the branch created by the sync job,
-  # and sync all docstrings available on Windows that are not available on Linux.
-  # Commit the changes and push them to the same branch.
-  docstrings-windows:
-    runs-on: windows-latest
-    timeout-minutes: 20
-    needs: [sync]
-
-    # Don't run the cron job on forks.
-    # The job will also be skipped if the sync job failed, because it's specified in `needs` above,
-    # and we haven't used `always()` in the `if` condition here
-    # (https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#example-requiring-successful-dependent-jobs)
-    if: ${{ github.repository == 'astral-sh/ruff' || github.event_name != 'schedule' }}
-
-    permissions:
-      contents: write
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        name: Checkout Ruff
-        with:
-          persist-credentials: true
-          ref: ${{ env.UPSTREAM_BRANCH}}
-      - uses: astral-sh/setup-uv@bd01e18f51369d5a26f1651c3cb451d3417e3bba # v6.3.1
-      - name: Setup git
-        run: |
-          git config --global user.name typeshedbot
-          git config --global user.email '<>'
-      - name: Sync Windows docstrings
-        id: docstrings
-        shell: bash
-        run: ./scripts/codemod_docstrings.sh
-      - name: Commit the changes
-        if: ${{ steps.docstrings.outcome == 'success' }}
-        run: |
-          git commit -am "Sync Windows docstrings" --allow-empty
-          git push
-
-  # Checkout the branch created by the sync job,
-  # and sync all docstrings available on macOS that are not available on Linux or Windows.
-  # Push the changes to the same branch and create a PR against the `main` branch using that branch.
-  docstrings-macos-and-pr:
-    runs-on: macos-latest
-    timeout-minutes: 20
-    needs: [sync, docstrings-windows]
-
-    # Don't run the cron job on forks.
-    # The job will also be skipped if the sync or docstrings-windows jobs failed,
-    # because they're specified in `needs` above and we haven't used an `always()` condition in the `if` here
-    # (https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#example-requiring-successful-dependent-jobs)
-    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:
-          persist-credentials: true
-          ref: ${{ env.UPSTREAM_BRANCH}}
-      - uses: astral-sh/setup-uv@bd01e18f51369d5a26f1651c3cb451d3417e3bba # v6.3.1
-      - name: Setup git
-        run: |
-          git config --global user.name typeshedbot
-          git config --global user.email '<>'
-      - name: Sync macOS docstrings
-        run: ./scripts/codemod_docstrings.sh
-      - name: Commit and push the changes
-        if: ${{ success() }}
-        run: |
-          git commit -am "Sync macOS docstrings" --allow-empty
-
-          # Here we just reformat the codemodded stubs so that they are
-          # consistent with the other typeshed stubs around them.
-          # Typeshed formats code using black in their CI, so we just invoke
-          # black on the stubs the same way that typeshed does.
-          uvx black crates/ty_vendored/vendor/typeshed/stdlib --config crates/ty_vendored/vendor/typeshed/pyproject.toml || true
-          git commit -am "Format codemodded docstrings" --allow-empty
-
-          rm crates/ty_vendored/vendor/typeshed/pyproject.toml
-          git commit -am "Remove pyproject.toml file"
-
-          git push
-      - name: Create a PR
-        if: ${{ success() }}
-        run: |
+          git push --force origin typeshedbot/sync-typeshed
           gh pr list --repo "$GITHUB_REPOSITORY" --head typeshedbot/sync-typeshed --json id --jq length | grep 1 && exit 0 # exit if there is existing pr
           gh pr create --title "[ty] Sync vendored typeshed stubs" --body "Close and reopen this PR to trigger CI" --label "ty"
 
   create-issue-on-failure:
     name: Create an issue if the typeshed sync failed
     runs-on: ubuntu-latest
-    needs: [sync, docstrings-windows, docstrings-macos-and-pr]
-    if: ${{ github.repository == 'astral-sh/ruff' && always() && github.event_name == 'schedule' && (needs.sync.result == 'failure' || needs.docstrings-windows.result == 'failure' || needs.docstrings-macos-and-pr.result == 'failure') }}
+    needs: [sync]
+    if: ${{ github.repository == 'astral-sh/ruff' && always() && github.event_name == 'schedule' && needs.sync.result == 'failure' }}
     permissions:
       issues: write
     steps:

.github/workflows/ty-ecosystem-report.yaml

@@ -1,76 +0,0 @@
-name: ty ecosystem-report
-
-permissions: {}
-
-on:
-  workflow_dispatch:
-  schedule:
-    # Run every Wednesday at 5:00 UTC:
-    - cron: 0 5 * * 3
-
-env:
-  CARGO_INCREMENTAL: 0
-  CARGO_NET_RETRY: 10
-  CARGO_TERM_COLOR: always
-  RUSTUP_MAX_RETRIES: 10
-  RUST_BACKTRACE: 1
-  CF_API_TOKEN_EXISTS: ${{ secrets.CF_API_TOKEN != '' }}
-
-jobs:
-  ty-ecosystem-report:
-    name: Create ecosystem report
-    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@bd01e18f51369d5a26f1651c3cb451d3417e3bba # v6.3.1
-
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
-        with:
-          workspaces: "ruff"
-
-      - name: Install Rust toolchain
-        run: rustup show
-
-      - name: Create report
-        shell: bash
-        run: |
-          cd ruff
-
-          echo "Enabling configuration overloads (see .github/mypy-primer-ty.toml)"
-          mkdir -p ~/.config/ty
-          cp .github/mypy-primer-ty.toml ~/.config/ty/ty.toml
-
-          cd ..
-
-          uv tool install "git+https://github.com/astral-sh/ecosystem-analyzer@f0eec0e549684d8e1d7b8bc3e351202124b63bda"
-
-          ecosystem-analyzer \
-            --verbose \
-            --repository ruff \
-            analyze \
-            --projects ruff/crates/ty_python_semantic/resources/primer/good.txt \
-            --output ecosystem-diagnostics.json
-
-          mkdir dist
-
-          ecosystem-analyzer \
-            generate-report \
-            --max-diagnostics-per-project=1200 \
-            ecosystem-diagnostics.json \
-            --output dist/index.html
-
-      - name: "Deploy to Cloudflare Pages"
-        if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
-        id: deploy
-        uses: cloudflare/wrangler-action@da0e0dfe58b7a431659754fdf3f186c529afbe65 # v3.14.1
-        with:
-          apiToken: ${{ secrets.CF_API_TOKEN }}
-          accountId: ${{ secrets.CF_ACCOUNT_ID }}
-          command: pages deploy dist --project-name=ty-ecosystem --branch main --commit-hash ${GITHUB_SHA}

.github/zizmor.yml

@@ -11,7 +11,6 @@ rules:
       - build-docker.yml
       - publish-playground.yml
       - ty-ecosystem-analyzer.yaml
-      - ty-ecosystem-report.yaml
   excessive-permissions:
     # it's hard to test what the impact of removing these ignores would be
     # without actually running the release workflow...

.pre-commit-config.yaml

@@ -81,7 +81,7 @@ repos:
         pass_filenames: false # This makes it a lot faster
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.12.3
+    rev: v0.12.2
     hooks:
       - id: ruff-format
       - id: ruff
@@ -128,10 +128,5 @@ repos:
           # but the integration only works if shellcheck is installed
           - "github.com/wasilibs/go-shellcheck/cmd/shellcheck@v0.10.0"
 
-  - repo: https://github.com/shellcheck-py/shellcheck-py
-    rev: v0.10.0.1
-    hooks:
-      - id: shellcheck
-
 ci:
   skip: [cargo-fmt, dev-generate-all]

CHANGELOG.md

@@ -1,36 +1,5 @@
 # Changelog
 
-## 0.12.4
-
-### Preview features
-
-- \[`flake8-type-checking`, `pyupgrade`, `ruff`\] Add `from __future__ import annotations` when it would allow new fixes (`TC001`, `TC002`, `TC003`, `UP037`, `RUF013`) ([#19100](https://github.com/astral-sh/ruff/pull/19100))
-- \[`flake8-use-pathlib`\] Add autofix for `PTH109` ([#19245](https://github.com/astral-sh/ruff/pull/19245))
-- \[`pylint`\] Detect indirect `pathlib.Path` usages for `unspecified-encoding` (`PLW1514`) ([#19304](https://github.com/astral-sh/ruff/pull/19304))
-
-### Bug fixes
-
-- \[`flake8-bugbear`\] Fix `B017` false negatives for keyword exception arguments ([#19217](https://github.com/astral-sh/ruff/pull/19217))
-- \[`flake8-use-pathlib`\] Fix false negative on direct `Path()` instantiation (`PTH210`) ([#19388](https://github.com/astral-sh/ruff/pull/19388))
-- \[`flake8-django`\] Fix `DJ008` false positive for abstract models with type-annotated `abstract` field ([#19221](https://github.com/astral-sh/ruff/pull/19221))
-- \[`isort`\] Fix `I002` import insertion after docstring with multiple string statements ([#19222](https://github.com/astral-sh/ruff/pull/19222))
-- \[`isort`\] Treat form feed as valid whitespace before a semicolon ([#19343](https://github.com/astral-sh/ruff/pull/19343))
-- \[`pydoclint`\] Fix `SyntaxError` from fixes with line continuations (`D201`, `D202`) ([#19246](https://github.com/astral-sh/ruff/pull/19246))
-- \[`refurb`\] `FURB164` fix should validate arguments and should usually be marked unsafe ([#19136](https://github.com/astral-sh/ruff/pull/19136))
-
-### Rule changes
-
-- \[`flake8-use-pathlib`\] Skip single dots for `invalid-pathlib-with-suffix` (`PTH210`) on versions >= 3.14 ([#19331](https://github.com/astral-sh/ruff/pull/19331))
-- \[`pep8_naming`\] Avoid false positives on standard library functions with uppercase names (`N802`) ([#18907](https://github.com/astral-sh/ruff/pull/18907))
-- \[`pycodestyle`\] Handle brace escapes for t-strings in logical lines ([#19358](https://github.com/astral-sh/ruff/pull/19358))
-- \[`pylint`\] Extend invalid string character rules to include t-strings ([#19355](https://github.com/astral-sh/ruff/pull/19355))
-- \[`ruff`\] Allow `strict` kwarg when checking for `starmap-zip` (`RUF058`) in Python 3.14+ ([#19333](https://github.com/astral-sh/ruff/pull/19333))
-
-### Documentation
-
-- \[`flake8-type-checking`\] Make `TC010` docs example more realistic ([#19356](https://github.com/astral-sh/ruff/pull/19356))
-- Make more documentation examples error out-of-the-box ([#19288](https://github.com/astral-sh/ruff/pull/19288),[#19272](https://github.com/astral-sh/ruff/pull/19272),[#19291](https://github.com/astral-sh/ruff/pull/19291),[#19296](https://github.com/astral-sh/ruff/pull/19296),[#19292](https://github.com/astral-sh/ruff/pull/19292),[#19295](https://github.com/astral-sh/ruff/pull/19295),[#19297](https://github.com/astral-sh/ruff/pull/19297),[#19309](https://github.com/astral-sh/ruff/pull/19309))
-
 ## 0.12.3
 
 ### Preview features

CONTRIBUTING.md

@@ -266,13 +266,6 @@ Finally, regenerate the documentation and generated code with `cargo dev generat
 
 ## MkDocs
 
-> [!NOTE]
->
-> The documentation uses Material for MkDocs Insiders, which is closed-source software.
-> This means only members of the Astral organization can preview the documentation exactly as it
-> will appear in production.
-> Outside contributors can still preview the documentation, but there will be some differences. Consult [the Material for MkDocs documentation](https://squidfunk.github.io/mkdocs-material/insiders/benefits/#features) for which features are exclusively available in the insiders version.
-
 To preview any changes to the documentation locally:
 
 1. Install the [Rust toolchain](https://www.rust-lang.org/tools/install).

Cargo.lock

@@ -396,9 +396,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.5.41"
+version = "4.5.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be92d32e80243a54711e5d7ce823c35c41c9d929dc4ab58e1276f625841aadf9"
+checksum = "40b6887a1d8685cebccf115538db5c0efe625ccac9696ad45c409d96566e910f"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -406,9 +406,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.41"
+version = "4.5.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "707eab41e9622f9139419d573eca0900137718000c517d47da73045f54331c3d"
+checksum = "e0c66c08ce9f0c698cbce5c0279d0bb6ac936d8674174fe48f736533b964f59e"
 dependencies = [
  "anstream",
  "anstyle",
@@ -449,9 +449,9 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.5.41"
+version = "4.5.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ef4f52386a59ca4c860f7393bcf8abd8dfd91ecccc0f774635ff68e92eeef491"
+checksum = "d2c7947ae4cc3d851207c1adb5b5e260ff0cca11446b1d6d1423788e442257ce"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -591,7 +591,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "117725a109d387c937a1533ce01b450cbde6b88abceea8473c4d7a85853cda3c"
 dependencies = [
  "lazy_static",
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -600,7 +600,7 @@ version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fde0e0ec90c9dfb3b4b1a0891a7dcd0e2bffde2f7efed5fe7c9bb00e5bfb915e"
 dependencies = [
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -933,7 +933,7 @@ dependencies = [
  "libc",
  "option-ext",
  "redox_users",
- "windows-sys 0.60.2",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -1013,7 +1013,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cea14ef9355e3beab063703aa9dab15afd25f0667c341310c1e5274bb1d0da18"
 dependencies = [
  "libc",
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -1133,9 +1133,9 @@ dependencies = [
 
 [[package]]
 name = "get-size-derive2"
-version = "0.5.2"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "028f3cfad7c3e3b1d8d04ef0a1c03576f2d62800803fe1301a4cd262849f2dea"
+checksum = "1aac2af9f9a6a50e31b1e541d05b7925add83d3982c2793193fe9d4ee584323c"
 dependencies = [
  "attribute-derive",
  "quote",
@@ -1144,9 +1144,9 @@ dependencies = [
 
 [[package]]
 name = "get-size2"
-version = "0.5.2"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a09c2043819a3def7bfbb4927e7df96aab0da4cfd8824484b22d0c94e84458e"
+checksum = "624a0312efd19e1c45922dfcc2d6806d3ffc4bca261f89f31fcc4f63f438d885"
 dependencies = [
  "compact_str",
  "get-size-derive2",
@@ -1586,7 +1586,7 @@ checksum = "e04d7f318608d35d4b61ddd75cbdaee86b023ebe2bd5a66ee0915f0bf93095a9"
 dependencies = [
  "hermit-abi 0.5.1",
  "libc",
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -1650,7 +1650,7 @@ dependencies = [
  "portable-atomic",
  "portable-atomic-util",
  "serde",
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -2465,7 +2465,7 @@ dependencies = [
  "pep508_rs",
  "serde",
  "thiserror 2.0.12",
- "toml 0.8.23",
+ "toml",
 ]
 
 [[package]]
@@ -2711,7 +2711,7 @@ dependencies = [
 
 [[package]]
 name = "ruff"
-version = "0.12.4"
+version = "0.12.3"
 dependencies = [
  "anyhow",
  "argfile",
@@ -2763,7 +2763,7 @@ dependencies = [
  "test-case",
  "thiserror 2.0.12",
  "tikv-jemallocator",
- "toml 0.9.2",
+ "toml",
  "tracing",
  "walkdir",
  "wild",
@@ -2779,7 +2779,7 @@ dependencies = [
  "ruff_annotate_snippets",
  "serde",
  "snapbox",
- "toml 0.9.2",
+ "toml",
  "tryfn",
  "unicode-width 0.2.1",
 ]
@@ -2895,7 +2895,7 @@ dependencies = [
  "similar",
  "strum",
  "tempfile",
- "toml 0.9.2",
+ "toml",
  "tracing",
  "tracing-indicatif",
  "tracing-subscriber",
@@ -2962,7 +2962,7 @@ dependencies = [
 
 [[package]]
 name = "ruff_linter"
-version = "0.12.4"
+version = "0.12.3"
 dependencies = [
  "aho-corasick",
  "anyhow",
@@ -3016,7 +3016,7 @@ dependencies = [
  "tempfile",
  "test-case",
  "thiserror 2.0.12",
- "toml 0.9.2",
+ "toml",
  "typed-arena",
  "unicode-normalization",
  "unicode-width 0.2.1",
@@ -3266,7 +3266,7 @@ dependencies = [
  "serde_json",
  "shellexpand",
  "thiserror 2.0.12",
- "toml 0.9.2",
+ "toml",
  "tracing",
  "tracing-log",
  "tracing-subscriber",
@@ -3295,7 +3295,7 @@ dependencies = [
 
 [[package]]
 name = "ruff_wasm"
-version = "0.12.4"
+version = "0.12.3"
 dependencies = [
  "console_error_panic_hook",
  "console_log",
@@ -3356,7 +3356,7 @@ dependencies = [
  "shellexpand",
  "strum",
  "tempfile",
- "toml 0.9.2",
+ "toml",
 ]
 
 [[package]]
@@ -3391,7 +3391,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -3576,15 +3576,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "serde_spanned"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40734c41988f7306bb04f0ecf60ec0f3f1caa34290e4e8ea471dcd3346483b83"
-dependencies = [
- "serde",
-]
-
 [[package]]
 name = "serde_test"
 version = "1.0.177"
@@ -3790,7 +3781,7 @@ dependencies = [
  "getrandom 0.3.3",
  "once_cell",
  "rustix",
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -3990,26 +3981,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc1beb996b9d83529a9e75c17a1686767d148d70663143c7854d8b4a09ced362"
 dependencies = [
  "serde",
- "serde_spanned 0.6.9",
- "toml_datetime 0.6.11",
+ "serde_spanned",
+ "toml_datetime",
  "toml_edit",
 ]
 
-[[package]]
-name = "toml"
-version = "0.9.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed0aee96c12fa71097902e0bb061a5e1ebd766a6636bb605ba401c45c1650eac"
-dependencies = [
- "indexmap",
- "serde",
- "serde_spanned 1.0.0",
- "toml_datetime 0.7.0",
- "toml_parser",
- "toml_writer",
- "winnow",
-]
-
 [[package]]
 name = "toml_datetime"
 version = "0.6.11"
@@ -4019,15 +3995,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "toml_datetime"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bade1c3e902f58d73d3f294cd7f20391c1cb2fbcb643b73566bc773971df91e3"
-dependencies = [
- "serde",
-]
-
 [[package]]
 name = "toml_edit"
 version = "0.22.27"
@@ -4036,25 +4003,17 @@ checksum = "41fe8c660ae4257887cf66394862d21dbca4a6ddd26f04a3560410406a2f819a"
 dependencies = [
  "indexmap",
  "serde",
- "serde_spanned 0.6.9",
- "toml_datetime 0.6.11",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_write",
  "winnow",
 ]
 
 [[package]]
-name = "toml_parser"
-version = "1.0.1"
+name = "toml_write"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97200572db069e74c512a14117b296ba0a80a30123fbbb5aa1f4a348f639ca30"
-dependencies = [
- "winnow",
-]
-
-[[package]]
-name = "toml_writer"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcc842091f2def52017664b53082ecbbeb5c7731092bad69d2c63050401dfd64"
+checksum = "5d99f8c9a7727884afe522e9bd5edbfc91a3312b36a77b5fb8926e4c31a41801"
 
 [[package]]
 name = "tracing"
@@ -4177,7 +4136,7 @@ dependencies = [
  "ruff_python_trivia",
  "salsa",
  "tempfile",
- "toml 0.9.2",
+ "toml",
  "tracing",
  "tracing-flame",
  "tracing-subscriber",
@@ -4238,7 +4197,7 @@ dependencies = [
  "schemars",
  "serde",
  "thiserror 2.0.12",
- "toml 0.9.2",
+ "toml",
  "tracing",
  "ty_ide",
  "ty_python_semantic",
@@ -4300,7 +4259,6 @@ name = "ty_server"
 version = "0.0.0"
 dependencies = [
  "anyhow",
- "bitflags 2.9.1",
  "crossbeam",
  "jod-thread",
  "libc",
@@ -4308,7 +4266,6 @@ dependencies = [
  "lsp-types",
  "ruff_db",
  "ruff_notebook",
- "ruff_python_ast",
  "ruff_source_file",
  "ruff_text_size",
  "rustc-hash",
@@ -4357,7 +4314,7 @@ dependencies = [
  "smallvec",
  "tempfile",
  "thiserror 2.0.12",
- "toml 0.9.2",
+ "toml",
  "tracing",
  "ty_python_semantic",
  "ty_static",
@@ -4851,7 +4808,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
 dependencies = [
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]

Cargo.toml

@@ -165,7 +165,7 @@ tempfile = { version = "3.9.0" }
 test-case = { version = "3.3.1" }
 thiserror = { version = "2.0.0" }
 tikv-jemallocator = { version = "0.6.0" }
-toml = { version = "0.9.0" }
+toml = { version = "0.8.11" }
 tracing = { version = "0.1.40" }
 tracing-flame = { version = "0.2.0" }
 tracing-indicatif = { version = "0.3.11" }

README.md

@@ -148,8 +148,8 @@ curl -LsSf https://astral.sh/ruff/install.sh | sh
 powershell -c "irm https://astral.sh/ruff/install.ps1 | iex"
 
 # For a specific version.
-curl -LsSf https://astral.sh/ruff/0.12.4/install.sh | sh
-powershell -c "irm https://astral.sh/ruff/0.12.4/install.ps1 | iex"
+curl -LsSf https://astral.sh/ruff/0.12.3/install.sh | sh
+powershell -c "irm https://astral.sh/ruff/0.12.3/install.ps1 | iex"
 ```
 
 You can also install Ruff via [Homebrew](https://formulae.brew.sh/formula/ruff), [Conda](https://anaconda.org/conda-forge/ruff),
@@ -182,7 +182,7 @@ 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: v0.12.4
+  rev: v0.12.3
   hooks:
     # Run the linter.
     - id: ruff-check

crates/ruff/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ruff"
-version = "0.12.4"
+version = "0.12.3"
 publish = true
 authors = { workspace = true }
 edition = { workspace = true }

crates/ruff/src/lib.rs

@@ -131,7 +131,6 @@ pub fn run(
     }: Args,
 ) -> Result<ExitStatus> {
     {
-        ruff_db::set_program_version(crate::version::version().to_string()).unwrap();
         let default_panic_hook = std::panic::take_hook();
         std::panic::set_hook(Box::new(move |info| {
             #[expect(clippy::print_stderr)]

crates/ruff/src/printer.rs

@@ -16,7 +16,7 @@ use ruff_linter::fs::relativize_path;
 use ruff_linter::logging::LogLevel;
 use ruff_linter::message::{
     Emitter, EmitterContext, GithubEmitter, GitlabEmitter, GroupedEmitter, JunitEmitter,
-    SarifEmitter, TextEmitter,
+    PylintEmitter, RdjsonEmitter, SarifEmitter, TextEmitter,
 };
 use ruff_linter::notify_user;
 use ruff_linter::settings::flags::{self};
@@ -238,11 +238,7 @@ impl Printer {
                 write!(writer, "{value}")?;
             }
             OutputFormat::Rdjson => {
-                let config = DisplayDiagnosticConfig::default()
-                    .format(DiagnosticFormat::Rdjson)
-                    .preview(preview);
-                let value = DisplayDiagnostics::new(&context, &config, &diagnostics.inner);
-                write!(writer, "{value}")?;
+                RdjsonEmitter.emit(writer, &diagnostics.inner, &context)?;
             }
             OutputFormat::JsonLines => {
                 let config = DisplayDiagnosticConfig::default()
@@ -294,11 +290,7 @@ impl Printer {
                 GitlabEmitter::default().emit(writer, &diagnostics.inner, &context)?;
             }
             OutputFormat::Pylint => {
-                let config = DisplayDiagnosticConfig::default()
-                    .format(DiagnosticFormat::Pylint)
-                    .preview(preview);
-                let value = DisplayDiagnostics::new(&context, &config, &diagnostics.inner);
-                write!(writer, "{value}")?;
+                PylintEmitter.emit(writer, &diagnostics.inner, &context)?;
             }
             OutputFormat::Azure => {
                 let config = DisplayDiagnosticConfig::default()

crates/ruff/tests/format.rs

@@ -120,7 +120,7 @@ fn nonexistent_config_file() {
 #[test]
 fn config_override_rejected_if_invalid_toml() {
     assert_cmd_snapshot!(Command::new(get_cargo_bin(BIN_NAME))
-        .args(["format", "--config", "foo = bar", "."]), @r"
+        .args(["format", "--config", "foo = bar", "."]), @r#"
     success: false
     exit_code: 2
     ----- stdout -----
@@ -137,11 +137,12 @@ fn config_override_rejected_if_invalid_toml() {
     TOML parse error at line 1, column 7
       |
     1 | foo = bar
-      |       ^^^
-    string values must be quoted, expected literal string
+      |       ^
+    invalid string
+    expected `"`, `'`
 
     For more information, try '--help'.
-    ");
+    "#);
 }
 
 #[test]

crates/ruff/tests/integration_test.rs

@@ -2246,7 +2246,8 @@ fn pyproject_toml_stdin_syntax_error() {
     success: false
     exit_code: 1
     ----- stdout -----
-    pyproject.toml:1:9: RUF200 Failed to parse pyproject.toml: unclosed table, expected `]`
+    pyproject.toml:1:9: RUF200 Failed to parse pyproject.toml: invalid table header
+    expected `.`, `]`
       |
     1 | [project
       |         ^ RUF200

crates/ruff/tests/lint.rs

@@ -534,7 +534,7 @@ fn nonexistent_config_file() {
 fn config_override_rejected_if_invalid_toml() {
     assert_cmd_snapshot!(Command::new(get_cargo_bin(BIN_NAME))
         .args(STDIN_BASE_OPTIONS)
-        .args(["--config", "foo = bar", "."]), @r"
+        .args(["--config", "foo = bar", "."]), @r#"
     success: false
     exit_code: 2
     ----- stdout -----
@@ -551,11 +551,12 @@ fn config_override_rejected_if_invalid_toml() {
     TOML parse error at line 1, column 7
       |
     1 | foo = bar
-      |       ^^^
-    string values must be quoted, expected literal string
+      |       ^
+    invalid string
+    expected `"`, `'`
 
     For more information, try '--help'.
-    ");
+    "#);
 }
 
 #[test]
@@ -732,8 +733,9 @@ select = [E501]
       Cause: TOML parse error at line 3, column 11
       |
     3 | select = [E501]
-      |           ^^^^
-    string values must be quoted, expected literal string
+      |           ^
+    invalid array
+    expected `]`
     ");
     });
 
@@ -874,7 +876,7 @@ fn each_toml_option_requires_a_new_flag_1() {
       |
     1 | extend-select=['F841'], line-length=90
       |                       ^
-    unexpected key or value, expected newline, `#`
+    expected newline, `#`
 
     For more information, try '--help'.
     ");
@@ -905,7 +907,7 @@ fn each_toml_option_requires_a_new_flag_2() {
       |
     1 | extend-select=['F841'] line-length=90
       |                        ^
-    unexpected key or value, expected newline, `#`
+    expected newline, `#`
 
     For more information, try '--help'.
     ");
@@ -993,7 +995,6 @@ fn value_given_to_table_key_is_not_inline_table_2() {
     - `lint.exclude`
     - `lint.preview`
     - `lint.typing-extensions`
-    - `lint.future-annotations`
 
     For more information, try '--help'.
     ");
@@ -5745,25 +5746,3 @@ match 42:  # invalid-syntax
 
     Ok(())
 }
-
-#[test]
-fn future_annotations_preview_warning() {
-    assert_cmd_snapshot!(
-        Command::new(get_cargo_bin(BIN_NAME))
-            .args(STDIN_BASE_OPTIONS)
-            .args(["--config", "lint.future-annotations = true"])
-            .args(["--select", "F"])
-            .arg("--no-preview")
-            .arg("-")
-            .pass_stdin("1"),
-        @r"
-    success: true
-    exit_code: 0
-    ----- stdout -----
-    All checks passed!
-
-    ----- stderr -----
-    warning: The `lint.future-annotations` setting will have no effect because `preview` is disabled
-    ",
-    );
-}

crates/ruff/tests/snapshots/lint__output_format_pylint.snap

@@ -18,6 +18,6 @@ exit_code: 1
 ----- stdout -----
 input.py:1: [F401] `os` imported but unused
 input.py:2: [F821] Undefined name `y`
-input.py:3: [invalid-syntax] SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)
+input.py:3: SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)
 
 ----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_rdjson.snap

@@ -75,7 +75,8 @@ exit_code: 1
     },
     {
       "code": {
-        "value": "invalid-syntax"
+        "url": null,
+        "value": null
       },
       "location": {
         "path": "[TMP]/input.py",
@@ -93,7 +94,7 @@ exit_code: 1
       "message": "SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)"
     }
   ],
-  "severity": "WARNING",
+  "severity": "warning",
   "source": {
     "name": "ruff",
     "url": "https://docs.astral.sh/ruff"

crates/ruff/tests/version.rs

@@ -60,7 +60,7 @@ fn config_option_ignored_but_validated() {
         assert_cmd_snapshot!(
             Command::new(get_cargo_bin(BIN_NAME))
                 .arg("version")
-                .args(["--config", "foo = bar"]), @r"
+                .args(["--config", "foo = bar"]), @r#"
         success: false
         exit_code: 2
         ----- stdout -----
@@ -77,11 +77,12 @@ fn config_option_ignored_but_validated() {
         TOML parse error at line 1, column 7
           |
         1 | foo = bar
-          |       ^^^
-        string values must be quoted, expected literal string
+          |       ^
+        invalid string
+        expected `"`, `'`
 
         For more information, try '--help'.
-        "
+        "#
         );
     });
 }

crates/ruff_benchmark/benches/ty.rs

@@ -2,7 +2,6 @@
 use ruff_benchmark::criterion;
 use ruff_benchmark::real_world_projects::{InstalledProject, RealWorldProject};
 
-use std::fmt::Write;
 use std::ops::Range;
 
 use criterion::{BatchSize, Criterion, criterion_group, criterion_main};
@@ -442,37 +441,6 @@ fn benchmark_complex_constrained_attributes_2(criterion: &mut Criterion) {
     });
 }
 
-fn benchmark_many_enum_members(criterion: &mut Criterion) {
-    const NUM_ENUM_MEMBERS: usize = 512;
-
-    setup_rayon();
-
-    let mut code = String::new();
-    writeln!(&mut code, "from enum import Enum").ok();
-
-    writeln!(&mut code, "class E(Enum):").ok();
-    for i in 0..NUM_ENUM_MEMBERS {
-        writeln!(&mut code, "    m{i} = {i}").ok();
-    }
-    writeln!(&mut code).ok();
-
-    for i in 0..NUM_ENUM_MEMBERS {
-        writeln!(&mut code, "print(E.m{i})").ok();
-    }
-
-    criterion.bench_function("ty_micro[many_enum_members]", |b| {
-        b.iter_batched_ref(
-            || setup_micro_case(&code),
-            |case| {
-                let Case { db, .. } = case;
-                let result = db.check();
-                assert_eq!(result.len(), 0);
-            },
-            BatchSize::SmallInput,
-        );
-    });
-}
-
 struct ProjectBenchmark<'a> {
     project: InstalledProject<'a>,
     fs: MemoryFileSystem,
@@ -623,7 +591,6 @@ criterion_group!(
     benchmark_many_tuple_assignments,
     benchmark_complex_constrained_attributes_1,
     benchmark_complex_constrained_attributes_2,
-    benchmark_many_enum_members,
 );
 criterion_group!(project, anyio, attrs, hydra, datetype);
 criterion_main!(check_file, micro, project);

crates/ruff_db/src/diagnostic/mod.rs

@@ -1,4 +1,4 @@
-use std::{fmt::Formatter, path::Path, sync::Arc};
+use std::{fmt::Formatter, sync::Arc};
 
 use ruff_diagnostics::Fix;
 use ruff_source_file::{LineColumn, SourceCode, SourceFile};
@@ -308,10 +308,6 @@ impl Diagnostic {
 
     /// Set the fix for this diagnostic.
     pub fn set_fix(&mut self, fix: Fix) {
-        debug_assert!(
-            self.primary_span().is_some(),
-            "Expected a source file for a diagnostic with a fix"
-        );
         Arc::make_mut(&mut self.inner).fix = Some(fix);
     }
 
@@ -1012,18 +1008,6 @@ impl UnifiedFile {
         }
     }
 
-    /// Return the file's path relative to the current working directory.
-    pub fn relative_path<'a>(&'a self, resolver: &'a dyn FileResolver) -> &'a Path {
-        let cwd = resolver.current_directory();
-        let path = Path::new(self.path(resolver));
-
-        if let Ok(path) = path.strip_prefix(cwd) {
-            return path;
-        }
-
-        path
-    }
-
     fn diagnostic_source(&self, resolver: &dyn FileResolver) -> DiagnosticSource {
         match self {
             UnifiedFile::Ty(file) => DiagnosticSource::Ty(resolver.input(*file)),
@@ -1275,13 +1259,6 @@ pub enum DiagnosticFormat {
     /// format for an array of all diagnostics. See <https://jsonlines.org/> for more details.
     #[cfg(feature = "serde")]
     JsonLines,
-    /// Print diagnostics in the JSON format expected by [reviewdog].
-    ///
-    /// [reviewdog]: https://github.com/reviewdog/reviewdog
-    #[cfg(feature = "serde")]
-    Rdjson,
-    /// Print diagnostics in the format emitted by Pylint.
-    Pylint,
 }
 
 /// A representation of the kinds of messages inside a diagnostic.

crates/ruff_db/src/diagnostic/render.rs

@@ -1,5 +1,4 @@
 use std::collections::BTreeMap;
-use std::path::Path;
 
 use ruff_annotate_snippets::{
     Annotation as AnnotateAnnotation, Level as AnnotateLevel, Message as AnnotateMessage,
@@ -23,16 +22,12 @@ use super::{
 };
 
 use azure::AzureRenderer;
-use pylint::PylintRenderer;
 
 mod azure;
 #[cfg(feature = "serde")]
 mod json;
 #[cfg(feature = "serde")]
 mod json_lines;
-mod pylint;
-#[cfg(feature = "serde")]
-mod rdjson;
 
 /// A type that implements `std::fmt::Display` for diagnostic rendering.
 ///
@@ -189,13 +184,6 @@ impl std::fmt::Display for DisplayDiagnostics<'_> {
                 json_lines::JsonLinesRenderer::new(self.resolver, self.config)
                     .render(f, self.diagnostics)?;
             }
-            #[cfg(feature = "serde")]
-            DiagnosticFormat::Rdjson => {
-                rdjson::RdjsonRenderer::new(self.resolver).render(f, self.diagnostics)?;
-            }
-            DiagnosticFormat::Pylint => {
-                PylintRenderer::new(self.resolver).render(f, self.diagnostics)?;
-            }
         }
 
         Ok(())
@@ -717,9 +705,6 @@ pub trait FileResolver {
 
     /// Returns whether the file given is a Jupyter notebook.
     fn is_notebook(&self, file: &UnifiedFile) -> bool;
-
-    /// Returns the current working directory.
-    fn current_directory(&self) -> &Path;
 }
 
 impl<T> FileResolver for T
@@ -755,10 +740,6 @@ where
             UnifiedFile::Ruff(_) => unimplemented!("Expected an interned ty file"),
         }
     }
-
-    fn current_directory(&self) -> &Path {
-        self.system().current_directory().as_std_path()
-    }
 }
 
 impl FileResolver for &dyn Db {
@@ -791,10 +772,6 @@ impl FileResolver for &dyn Db {
             UnifiedFile::Ruff(_) => unimplemented!("Expected an interned ty file"),
         }
     }
-
-    fn current_directory(&self) -> &Path {
-        self.system().current_directory().as_std_path()
-    }
 }
 
 /// An abstraction over a unit of user input.

crates/ruff_db/src/diagnostic/render/json.rs

@@ -262,6 +262,9 @@ struct JsonEdit<'a> {
 
 #[cfg(test)]
 mod tests {
+    use ruff_diagnostics::{Edit, Fix};
+    use ruff_text_size::TextSize;
+
     use crate::diagnostic::{
         DiagnosticFormat,
         render::tests::{
@@ -294,7 +297,13 @@ mod tests {
         env.format(DiagnosticFormat::Json);
         env.preview(false);
 
-        let diag = env.err().build();
+        let diag = env
+            .err()
+            .fix(Fix::safe_edit(Edit::insertion(
+                "edit".to_string(),
+                TextSize::from(0),
+            )))
+            .build();
 
         insta::assert_snapshot!(
             env.render(&diag),
@@ -308,7 +317,23 @@ mod tests {
               "row": 1
             },
             "filename": "",
-            "fix": null,
+            "fix": {
+              "applicability": "safe",
+              "edits": [
+                {
+                  "content": "edit",
+                  "end_location": {
+                    "column": 1,
+                    "row": 1
+                  },
+                  "location": {
+                    "column": 1,
+                    "row": 1
+                  }
+                }
+              ],
+              "message": null
+            },
             "location": {
               "column": 1,
               "row": 1
@@ -328,7 +353,13 @@ mod tests {
         env.format(DiagnosticFormat::Json);
         env.preview(true);
 
-        let diag = env.err().build();
+        let diag = env
+            .err()
+            .fix(Fix::safe_edit(Edit::insertion(
+                "edit".to_string(),
+                TextSize::from(0),
+            )))
+            .build();
 
         insta::assert_snapshot!(
             env.render(&diag),
@@ -339,7 +370,17 @@ mod tests {
             "code": null,
             "end_location": null,
             "filename": null,
-            "fix": null,
+            "fix": {
+              "applicability": "safe",
+              "edits": [
+                {
+                  "content": "edit",
+                  "end_location": null,
+                  "location": null
+                }
+              ],
+              "message": null
+            },
             "location": null,
             "message": "main diagnostic message",
             "noqa_row": null,

crates/ruff_db/src/diagnostic/render/pylint.rs

@@ -1,97 +0,0 @@
-use crate::diagnostic::{Diagnostic, SecondaryCode, render::FileResolver};
-
-/// Generate violations in Pylint format.
-///
-/// The format is given by this string:
-///
-/// ```python
-/// "%(path)s:%(row)d: [%(code)s] %(text)s"
-/// ```
-///
-/// See: [Flake8 documentation](https://flake8.pycqa.org/en/latest/internal/formatters.html#pylint-formatter)
-pub(super) struct PylintRenderer<'a> {
-    resolver: &'a dyn FileResolver,
-}
-
-impl<'a> PylintRenderer<'a> {
-    pub(super) fn new(resolver: &'a dyn FileResolver) -> Self {
-        Self { resolver }
-    }
-}
-
-impl PylintRenderer<'_> {
-    pub(super) fn render(
-        &self,
-        f: &mut std::fmt::Formatter,
-        diagnostics: &[Diagnostic],
-    ) -> std::fmt::Result {
-        for diagnostic in diagnostics {
-            let (filename, row) = diagnostic
-                .primary_span_ref()
-                .map(|span| {
-                    let file = span.file();
-
-                    let row = span
-                        .range()
-                        .filter(|_| !self.resolver.is_notebook(file))
-                        .map(|range| {
-                            file.diagnostic_source(self.resolver)
-                                .as_source_code()
-                                .line_column(range.start())
-                                .line
-                        });
-
-                    (file.relative_path(self.resolver).to_string_lossy(), row)
-                })
-                .unwrap_or_default();
-
-            let code = diagnostic
-                .secondary_code()
-                .map_or_else(|| diagnostic.name(), SecondaryCode::as_str);
-
-            let row = row.unwrap_or_default();
-
-            writeln!(
-                f,
-                "{path}:{row}: [{code}] {body}",
-                path = filename,
-                body = diagnostic.body()
-            )?;
-        }
-
-        Ok(())
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::diagnostic::{
-        DiagnosticFormat,
-        render::tests::{TestEnvironment, create_diagnostics, create_syntax_error_diagnostics},
-    };
-
-    #[test]
-    fn output() {
-        let (env, diagnostics) = create_diagnostics(DiagnosticFormat::Pylint);
-        insta::assert_snapshot!(env.render_diagnostics(&diagnostics));
-    }
-
-    #[test]
-    fn syntax_errors() {
-        let (env, diagnostics) = create_syntax_error_diagnostics(DiagnosticFormat::Pylint);
-        insta::assert_snapshot!(env.render_diagnostics(&diagnostics));
-    }
-
-    #[test]
-    fn missing_file() {
-        let mut env = TestEnvironment::new();
-        env.format(DiagnosticFormat::Pylint);
-
-        let diag = env.err().build();
-
-        insta::assert_snapshot!(
-            env.render(&diag),
-            @":1: [test-diagnostic] main diagnostic message",
-        );
-    }
-}

crates/ruff_db/src/diagnostic/render/rdjson.rs

@@ -1,235 +0,0 @@
-use serde::ser::SerializeSeq;
-use serde::{Serialize, Serializer};
-
-use ruff_diagnostics::{Edit, Fix};
-use ruff_source_file::{LineColumn, SourceCode};
-use ruff_text_size::Ranged;
-
-use crate::diagnostic::Diagnostic;
-
-use super::FileResolver;
-
-pub struct RdjsonRenderer<'a> {
-    resolver: &'a dyn FileResolver,
-}
-
-impl<'a> RdjsonRenderer<'a> {
-    pub(super) fn new(resolver: &'a dyn FileResolver) -> Self {
-        Self { resolver }
-    }
-
-    pub(super) fn render(
-        &self,
-        f: &mut std::fmt::Formatter,
-        diagnostics: &[Diagnostic],
-    ) -> std::fmt::Result {
-        write!(
-            f,
-            "{:#}",
-            serde_json::json!(RdjsonDiagnostics::new(diagnostics, self.resolver))
-        )
-    }
-}
-
-struct ExpandedDiagnostics<'a> {
-    resolver: &'a dyn FileResolver,
-    diagnostics: &'a [Diagnostic],
-}
-
-impl Serialize for ExpandedDiagnostics<'_> {
-    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-    where
-        S: Serializer,
-    {
-        let mut s = serializer.serialize_seq(Some(self.diagnostics.len()))?;
-
-        for diagnostic in self.diagnostics {
-            let value = diagnostic_to_rdjson(diagnostic, self.resolver);
-            s.serialize_element(&value)?;
-        }
-
-        s.end()
-    }
-}
-
-fn diagnostic_to_rdjson<'a>(
-    diagnostic: &'a Diagnostic,
-    resolver: &'a dyn FileResolver,
-) -> RdjsonDiagnostic<'a> {
-    let span = diagnostic.primary_span_ref();
-    let source_file = span.map(|span| {
-        let file = span.file();
-        (file.path(resolver), file.diagnostic_source(resolver))
-    });
-
-    let location = source_file.as_ref().map(|(path, source)| {
-        let range = diagnostic.range().map(|range| {
-            let source_code = source.as_source_code();
-            let start = source_code.line_column(range.start());
-            let end = source_code.line_column(range.end());
-            RdjsonRange::new(start, end)
-        });
-
-        RdjsonLocation { path, range }
-    });
-
-    let edits = diagnostic.fix().map(Fix::edits).unwrap_or_default();
-
-    RdjsonDiagnostic {
-        message: diagnostic.body(),
-        location,
-        code: RdjsonCode {
-            value: diagnostic
-                .secondary_code()
-                .map_or_else(|| diagnostic.name(), |code| code.as_str()),
-            url: diagnostic.to_ruff_url(),
-        },
-        suggestions: rdjson_suggestions(
-            edits,
-            source_file
-                .as_ref()
-                .map(|(_, source)| source.as_source_code()),
-        ),
-    }
-}
-
-fn rdjson_suggestions<'a>(
-    edits: &'a [Edit],
-    source_code: Option<SourceCode>,
-) -> Vec<RdjsonSuggestion<'a>> {
-    if edits.is_empty() {
-        return Vec::new();
-    }
-
-    let Some(source_code) = source_code else {
-        debug_assert!(false, "Expected a source file for a diagnostic with a fix");
-        return Vec::new();
-    };
-
-    edits
-        .iter()
-        .map(|edit| {
-            let start = source_code.line_column(edit.start());
-            let end = source_code.line_column(edit.end());
-            let range = RdjsonRange::new(start, end);
-
-            RdjsonSuggestion {
-                range,
-                text: edit.content().unwrap_or_default(),
-            }
-        })
-        .collect()
-}
-
-#[derive(Serialize)]
-struct RdjsonDiagnostics<'a> {
-    diagnostics: ExpandedDiagnostics<'a>,
-    severity: &'static str,
-    source: RdjsonSource,
-}
-
-impl<'a> RdjsonDiagnostics<'a> {
-    fn new(diagnostics: &'a [Diagnostic], resolver: &'a dyn FileResolver) -> Self {
-        Self {
-            source: RdjsonSource {
-                name: "ruff",
-                url: env!("CARGO_PKG_HOMEPAGE"),
-            },
-            severity: "WARNING",
-            diagnostics: ExpandedDiagnostics {
-                diagnostics,
-                resolver,
-            },
-        }
-    }
-}
-
-#[derive(Serialize)]
-struct RdjsonSource {
-    name: &'static str,
-    url: &'static str,
-}
-
-#[derive(Serialize)]
-struct RdjsonDiagnostic<'a> {
-    code: RdjsonCode<'a>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    location: Option<RdjsonLocation<'a>>,
-    message: &'a str,
-    #[serde(skip_serializing_if = "Vec::is_empty")]
-    suggestions: Vec<RdjsonSuggestion<'a>>,
-}
-
-#[derive(Serialize)]
-struct RdjsonLocation<'a> {
-    path: &'a str,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    range: Option<RdjsonRange>,
-}
-
-#[derive(Default, Serialize)]
-struct RdjsonRange {
-    end: LineColumn,
-    start: LineColumn,
-}
-
-impl RdjsonRange {
-    fn new(start: LineColumn, end: LineColumn) -> Self {
-        Self { start, end }
-    }
-}
-
-#[derive(Serialize)]
-struct RdjsonCode<'a> {
-    #[serde(skip_serializing_if = "Option::is_none")]
-    url: Option<String>,
-    value: &'a str,
-}
-
-#[derive(Serialize)]
-struct RdjsonSuggestion<'a> {
-    range: RdjsonRange,
-    text: &'a str,
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::diagnostic::{
-        DiagnosticFormat,
-        render::tests::{TestEnvironment, create_diagnostics, create_syntax_error_diagnostics},
-    };
-
-    #[test]
-    fn output() {
-        let (env, diagnostics) = create_diagnostics(DiagnosticFormat::Rdjson);
-        insta::assert_snapshot!(env.render_diagnostics(&diagnostics));
-    }
-
-    #[test]
-    fn syntax_errors() {
-        let (env, diagnostics) = create_syntax_error_diagnostics(DiagnosticFormat::Rdjson);
-        insta::assert_snapshot!(env.render_diagnostics(&diagnostics));
-    }
-
-    #[test]
-    fn missing_file_stable() {
-        let mut env = TestEnvironment::new();
-        env.format(DiagnosticFormat::Rdjson);
-        env.preview(false);
-
-        let diag = env.err().build();
-
-        insta::assert_snapshot!(env.render(&diag));
-    }
-
-    #[test]
-    fn missing_file_preview() {
-        let mut env = TestEnvironment::new();
-        env.format(DiagnosticFormat::Rdjson);
-        env.preview(true);
-
-        let diag = env.err().build();
-
-        insta::assert_snapshot!(env.render(&diag));
-    }
-}

crates/ruff_db/src/diagnostic/render/snapshots/ruff_db__diagnostic__render__pylint__tests__syntax_errors.snap

@@ -1,6 +0,0 @@
----
-source: crates/ruff_db/src/diagnostic/render/pylint.rs
-expression: env.render_diagnostics(&diagnostics)
----
-syntax_errors.py:1: [invalid-syntax] SyntaxError: Expected one or more symbol names after import
-syntax_errors.py:3: [invalid-syntax] SyntaxError: Expected ')', found newline

crates/ruff_db/src/diagnostic/render/snapshots/ruff_db__diagnostic__render__rdjson__tests__missing_file_preview.snap

@@ -1,20 +0,0 @@
----
-source: crates/ruff_db/src/diagnostic/render/rdjson.rs
-expression: env.render(&diag)
----
-{
-  "diagnostics": [
-    {
-      "code": {
-        "url": "https://docs.astral.sh/ruff/rules/test-diagnostic",
-        "value": "test-diagnostic"
-      },
-      "message": "main diagnostic message"
-    }
-  ],
-  "severity": "WARNING",
-  "source": {
-    "name": "ruff",
-    "url": "https://docs.astral.sh/ruff"
-  }
-}

crates/ruff_db/src/diagnostic/render/snapshots/ruff_db__diagnostic__render__rdjson__tests__missing_file_stable.snap

@@ -1,20 +0,0 @@
----
-source: crates/ruff_db/src/diagnostic/render/rdjson.rs
-expression: env.render(&diag)
----
-{
-  "diagnostics": [
-    {
-      "code": {
-        "url": "https://docs.astral.sh/ruff/rules/test-diagnostic",
-        "value": "test-diagnostic"
-      },
-      "message": "main diagnostic message"
-    }
-  ],
-  "severity": "WARNING",
-  "source": {
-    "name": "ruff",
-    "url": "https://docs.astral.sh/ruff"
-  }
-}

crates/ruff_db/src/lib.rs

@@ -28,21 +28,6 @@ pub use web_time::{Instant, SystemTime, SystemTimeError};
 pub type FxDashMap<K, V> = dashmap::DashMap<K, V, BuildHasherDefault<FxHasher>>;
 pub type FxDashSet<K> = dashmap::DashSet<K, BuildHasherDefault<FxHasher>>;
 
-static VERSION: std::sync::OnceLock<String> = std::sync::OnceLock::new();
-
-/// Returns the version of the executing program if set.
-pub fn program_version() -> Option<&'static str> {
-    VERSION.get().map(|version| version.as_str())
-}
-
-/// Sets the version of the executing program.
-///
-/// ## Errors
-/// If the version has already been initialized (can only be set once).
-pub fn set_program_version(version: String) -> Result<(), String> {
-    VERSION.set(version)
-}
-
 /// Most basic database that gives access to files, the host system, source code, and parsed AST.
 #[salsa::db]
 pub trait Db: salsa::Database {

crates/ruff_linter/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ruff_linter"
-version = "0.12.4"
+version = "0.12.3"
 publish = false
 authors = { workspace = true }
 edition = { workspace = true }

crates/ruff_linter/resources/test/fixtures/flake8_gettext/INT001.py

@@ -1,4 +1 @@
 _(f"{'value'}")
-
-# Don't trigger for t-strings
-_(t"{'value'}")

crates/ruff_linter/resources/test/fixtures/flake8_logging_format/G004.py

@@ -13,7 +13,3 @@ from logging import info
 
 info(f"{name}")
 info(f"{__name__}")
-
-# Don't trigger for t-strings
-info(t"{name}")
-info(t"{__name__}")

crates/ruff_linter/resources/test/fixtures/flake8_pytest_style/PT011.py

@@ -47,7 +47,3 @@ def test_error_match_is_empty():
 
     with pytest.raises(ValueError, match=f""):
         raise ValueError("Can't divide 1 by 0")
-
-def test_ok_t_string_match():
-    with pytest.raises(ValueError, match=t""):
-        raise ValueError("Can't divide 1 by 0")

crates/ruff_linter/resources/test/fixtures/flake8_pytest_style/PT016.py

@@ -23,9 +23,3 @@ def f():
     pytest.fail(msg=f"")
     pytest.fail(reason="")
     pytest.fail(reason=f"")
-
-# Skip for t-strings
-def g():
-    pytest.fail(t"")
-    pytest.fail(msg=t"")
-    pytest.fail(reason=t"")

crates/ruff_linter/resources/test/fixtures/flake8_pytest_style/PT030.py

@@ -32,7 +32,3 @@ def test_error_match_is_empty():
 
     with pytest.warns(UserWarning, match=f""):
         pass
-
-def test_ok_match_t_string():
-    with pytest.warns(UserWarning, match=t""):
-        pass

crates/ruff_linter/resources/test/fixtures/flake8_type_checking/TC001-3_future.py

@@ -1,10 +0,0 @@
-from collections import Counter
-
-from elsewhere import third_party
-
-from . import first_party
-
-
-def f(x: first_party.foo): ...
-def g(x: third_party.bar): ...
-def h(x: Counter): ...

crates/ruff_linter/resources/test/fixtures/flake8_type_checking/TC001_future.py

@@ -1,68 +0,0 @@
-def f():
-    from . import first_party
-
-    def f(x: first_party.foo): ...
-
-
-# Type parameter bounds
-def g():
-    from . import foo
-
-    class C[T: foo.Ty]: ...
-
-
-def h():
-    from . import foo
-
-    def f[T: foo.Ty](x: T): ...
-
-
-def i():
-    from . import foo
-
-    type Alias[T: foo.Ty] = list[T]
-
-
-# Type parameter defaults
-def j():
-    from . import foo
-
-    class C[T = foo.Ty]: ...
-
-
-def k():
-    from . import foo
-
-    def f[T = foo.Ty](x: T): ...
-
-
-def l():
-    from . import foo
-
-    type Alias[T = foo.Ty] = list[T]
-
-
-# non-generic type alias
-def m():
-    from . import foo
-
-    type Alias = foo.Ty
-
-
-# unions
-from typing import Union
-
-
-def n():
-    from . import foo
-
-    def f(x: Union[foo.Ty, int]): ...
-    def g(x: foo.Ty | int): ...
-
-
-# runtime and typing usage
-def o():
-    from . import foo
-
-    def f(x: foo.Ty):
-        return foo.Ty()

crates/ruff_linter/resources/test/fixtures/flake8_type_checking/TC001_future_present.py

@@ -1,6 +0,0 @@
-from __future__ import annotations
-
-from . import first_party
-
-
-def f(x: first_party.foo): ...

crates/ruff_linter/resources/test/fixtures/flake8_unused_arguments/ARG.py

@@ -245,14 +245,3 @@ def f(bar: str):
 class C:
     def __init__(self, x) -> None:
         print(locals())
-
-###
-# Should trigger for t-string here
-# even though the corresponding f-string
-# does not trigger (since it is common in stubs)
-###
-class C:
-    def f(self, x, y):
-        """Docstring."""
-        msg = t"{x}..."
-        raise NotImplementedError(msg)

crates/ruff_linter/resources/test/fixtures/flake8_use_pathlib/PTH210.py

@@ -54,13 +54,6 @@ windows_path.with_suffix(r"s")
 windows_path.with_suffix(u'' "json")
 windows_path.with_suffix(suffix="js")
 
-Path().with_suffix(".")
-Path().with_suffix("py")
-PosixPath().with_suffix("py")
-PurePath().with_suffix("py")
-PurePosixPath().with_suffix("py")
-PureWindowsPath().with_suffix("py")
-WindowsPath().with_suffix("py")
 
 ### No errors
 path.with_suffix()

crates/ruff_linter/resources/test/fixtures/flake8_use_pathlib/PTH210_2.py

@@ -1,26 +0,0 @@
-from pathlib import (
-    Path,
-    PosixPath,
-    PurePath,
-    PurePosixPath,
-    PureWindowsPath,
-    WindowsPath,
-)
-import pathlib
-
-
-path = Path()
-posix_path: pathlib.PosixPath = PosixPath()
-pure_path: PurePath = PurePath()
-pure_posix_path = pathlib.PurePosixPath()
-pure_windows_path: PureWindowsPath = pathlib.PureWindowsPath()
-windows_path: pathlib.WindowsPath = pathlib.WindowsPath()
-
-
-### No Errors
-path.with_suffix(".")
-posix_path.with_suffix(".")
-pure_path.with_suffix(".")
-pure_posix_path.with_suffix(".")
-pure_windows_path.with_suffix(".")
-windows_path.with_suffix(".")

crates/ruff_linter/resources/test/fixtures/flake8_use_pathlib/full_name.py

@@ -104,6 +104,3 @@ os.chmod(x)
 os.replace("src", "dst", src_dir_fd=1, dst_dir_fd=2)
 os.replace("src", "dst", src_dir_fd=1)
 os.replace("src", "dst", dst_dir_fd=2)
-
-os.getcwd()
-os.getcwdb()

crates/ruff_linter/resources/test/fixtures/isort/required_imports/whitespace.py

@@ -1,5 +0,0 @@
-# This is a regression test for https://github.com/astral-sh/ruff/issues/19310
-# there is a (potentially invisible) unicode formfeed character (000C) between "docstring" and the semicolon
-"docstring"; print(
-    f"{__doc__=}",
-)

crates/ruff_linter/resources/test/fixtures/pep8_naming/N802.py

@@ -48,39 +48,6 @@ from typing import override, overload
 def BAD_FUNC():
     pass
 
-
 @overload
 def BAD_FUNC():
     pass
-
-
-import ast
-from ast import NodeTransformer
-
-
-class Visitor(ast.NodeVisitor):
-    def visit_Constant(self, node):
-        pass
-
-    def bad_Name(self):
-        pass
-
-class ExtendsVisitor(Visitor):
-    def visit_Constant(self, node):
-        pass
-
-class Transformer(NodeTransformer):
-    def visit_Constant(self, node):
-        pass
-
-
-from http.server import BaseHTTPRequestHandler
-
-
-class MyRequestHandler(BaseHTTPRequestHandler):
-    def do_GET(self):
-        pass
-
-    def dont_GET(self):
-        pass
-

crates/ruff_linter/resources/test/fixtures/pycodestyle/E20.py

@@ -189,18 +189,3 @@ f"{ham[lower + 1  :, "columnname"]}"
 #: Okay: https://github.com/astral-sh/ruff/issues/12023
 f"{x = :.2f}"
 f"{(x) = :.2f}"
-
-# t-strings
-t"{ {'a': 1} }"
-t"{[ { {'a': 1} } ]}"
-t"normal { {t"{ { [1, 2] } }" } } normal"
-
-t"{x = :.2f}"
-t"{(x) = :.2f}"
-
-#: Okay
-t"{ham[lower +1 :, "columnname"]}"
-
-#: E203:1:13
-t"{ham[lower + 1  :, "columnname"]}"
-

crates/ruff_linter/resources/test/fixtures/pycodestyle/E23.py

@@ -142,20 +142,3 @@ class PEP696GoodWithEmptyBases[A: object="foo"[::-1], B: object =[[["foo", "bar"
 
 class PEP696GoodWithNonEmptyBases[A: object="foo"[::-1], B: object =[[["foo", "bar"]]], C: object= bytes](object, something_dynamic[x::-1]):
     pass
-
-# E231
-t"{(a,b)}"
-
-# Okay because it's hard to differentiate between the usages of a colon in a t-string
-t"{a:=1}"
-t"{ {'a':1} }"
-t"{a:.3f}"
-t"{(a:=1)}"
-t"{(lambda x:x)}"
-t"normal{t"{a:.3f}"}normal"
-
-#: Okay
-snapshot.file_uri[len(t's3://{self.s3_bucket_name}/'):]
-
-#: E231
-{len(t's3://{self.s3_bucket_name}/'):1}

crates/ruff_linter/resources/test/fixtures/pydocstyle/D.py

@@ -722,10 +722,3 @@ def inconsistent_indent_byte_size():
 
        Returns:
     """
-
-
-def line_continuation_chars():\
-
-    """No fix should be offered for D201/D202 because of the line continuation chars."""\
-
-    ...

crates/ruff_linter/resources/test/fixtures/pylint/assert_on_string_literal.py

@@ -22,10 +22,3 @@ assert b"hello"  # [assert-on-string-literal]
 assert "", b"hi"  # [assert-on-string-literal]
 assert "WhyNotHere?", "HereIsOk"  # [assert-on-string-literal]
 assert 12, "ok here"
-
-
-# t-strings are always True even when "empty"
-# skip lint in this case
-assert t""
-assert t"hey"
-assert t"{a}"

crates/ruff_linter/resources/test/fixtures/pylint/no_self_use.py

@@ -140,15 +140,3 @@ class Foo:
     def unused_message_2(self, x):
         msg = ""
         raise NotImplementedError(x)
-
-class TPerson:
-    def developer_greeting(self, name):  # [no-self-use]
-        print(t"Greetings {name}!")
-
-    def greeting_1(self):
-        print(t"Hello from {self.name} !")
-
-    def tstring(self, x):
-        msg = t"{x}"
-        raise NotImplementedError(msg)
-

crates/ruff_linter/resources/test/fixtures/pylint/single_string_slots.py

@@ -33,11 +33,3 @@ class Foo:
 
     def __init__(self, bar):
         self.bar = bar
-
-# This is a type error, out of scope for the rule
-class Foo:
-    __slots__ = t"bar{baz}"
-
-    def __init__(self, bar):
-        self.bar = bar
-

crates/ruff_linter/resources/test/fixtures/pylint/unspecified_encoding.py

@@ -91,16 +91,9 @@ Path("foo.txt").write_text(text, encoding="utf-8")
 Path("foo.txt").write_text(text, *args)
 Path("foo.txt").write_text(text, **kwargs)
 
-# https://github.com/astral-sh/ruff/issues/19294
+# Violation but not detectable
 x = Path("foo.txt")
 x.open()
 
 # https://github.com/astral-sh/ruff/issues/18107
 codecs.open("plw1514.py", "r", "utf-8").close() # this is fine
-
-# function argument annotated as Path
-from pathlib import Path
-
-def format_file(file: Path):
-    with file.open() as f:
-        contents = f.read()

crates/ruff_linter/resources/test/fixtures/pyupgrade/UP012.py

@@ -84,7 +84,3 @@ def _match_ignore(line):
 # Not a valid type annotation but this test shouldn't result in a panic.
 # Refer: https://github.com/astral-sh/ruff/issues/11736
 x: '"foo".encode("utf-8")'
-
-# AttributeError for t-strings so skip lint
-(t"foo{bar}").encode("utf-8")
-(t"foo{bar}").encode(encoding="utf-8")

crates/ruff_linter/resources/test/fixtures/pyupgrade/UP018.py

@@ -90,7 +90,3 @@ bool(True)and None
 int(1)and None
 float(1.)and None
 bool(True)and()
-
-
-# t-strings are not native literals
-str(t"hey")

crates/ruff_linter/resources/test/fixtures/refurb/FURB164.py

@@ -27,24 +27,7 @@ _ = Decimal.from_float(float("   -inF\n \t"))
 _ = Decimal.from_float(float("  InfinIty \n\t "))
 _ = Decimal.from_float(float("   -InfinIty\n \t"))
 
-# Cases with keyword arguments - should produce unsafe fixes
-_ = Fraction.from_decimal(dec=Decimal("4.2"))
-_ = Decimal.from_float(f=4.2)
-
-# Cases with invalid argument counts - should not get fixes
-_ = Fraction.from_decimal(Decimal("4.2"), 1)
-_ = Decimal.from_float(4.2, None)
-
-# Cases with wrong keyword arguments - should not get fixes  
-_ = Fraction.from_decimal(numerator=Decimal("4.2"))
-_ = Decimal.from_float(value=4.2)
-
-# Cases with type validation issues - should produce unsafe fixes
-_ = Decimal.from_float("4.2")  # Invalid type for from_float
-_ = Fraction.from_decimal(4.2)  # Invalid type for from_decimal
-_ = Fraction.from_float("4.2")  # Invalid type for from_float
-
-# OK - should not trigger the rule
+# OK
 _ = Fraction(0.1)
 _ = Fraction(-0.5)
 _ = Fraction(5.0)

crates/ruff_linter/resources/test/fixtures/ruff/RUF058_2.py

@@ -1,16 +0,0 @@
-from itertools import starmap
-import itertools
-
-# Errors in Python 3.14+
-starmap(func, zip(a, b, c, strict=True))
-starmap(func, zip(a, b, c, strict=False))
-starmap(func, zip(a, b, c, strict=strict))
-
-
-# No errors
-
-starmap(func)
-starmap(func, zip(a, b, c, **kwargs))
-starmap(func, zip(a, b, c), foo)
-starmap(func, zip(a, b, c, lorem=ipsum))
-starmap(func, zip(a, b, c), lorem=ipsum)

crates/ruff_linter/src/checkers/ast/analyze/deferred_scopes.rs

@@ -71,7 +71,7 @@ pub(crate) fn deferred_scopes(checker: &Checker) {
                         flake8_type_checking::helpers::is_valid_runtime_import(
                             binding,
                             &checker.semantic,
-                            checker.settings(),
+                            &checker.settings().flake8_type_checking,
                         )
                     })
                     .collect()

crates/ruff_linter/src/checkers/ast/analyze/expression.rs

@@ -1044,6 +1044,7 @@ pub(crate) fn expression(expr: &Expr, checker: &Checker) {
                 Rule::OsMakedirs,
                 Rule::OsRename,
                 Rule::OsReplace,
+                Rule::OsGetcwd,
                 Rule::OsStat,
                 Rule::OsPathJoin,
                 Rule::OsPathSamefile,
@@ -1109,9 +1110,6 @@ pub(crate) fn expression(expr: &Expr, checker: &Checker) {
                 if checker.is_rule_enabled(Rule::OsReadlink) {
                     flake8_use_pathlib::rules::os_readlink(checker, call, segments);
                 }
-                if checker.is_rule_enabled(Rule::OsGetcwd) {
-                    flake8_use_pathlib::rules::os_getcwd(checker, call, segments);
-                }
                 if checker.is_rule_enabled(Rule::PathConstructorCurrentDirectory) {
                     flake8_use_pathlib::rules::path_constructor_current_directory(
                         checker, call, segments,

crates/ruff_linter/src/checkers/ast/mod.rs

@@ -2770,10 +2770,11 @@ impl<'a> Checker<'a> {
 
                         self.semantic.restore(snapshot);
 
-                        if self.is_rule_enabled(Rule::QuotedAnnotation) {
-                            pyupgrade::rules::quoted_annotation(self, annotation, range);
+                        if self.semantic.in_typing_only_annotation() {
+                            if self.is_rule_enabled(Rule::QuotedAnnotation) {
+                                pyupgrade::rules::quoted_annotation(self, annotation, range);
+                            }
                         }
-
                         if self.source_type.is_stub() {
                             if self.is_rule_enabled(Rule::QuotedAnnotationInStub) {
                                 flake8_pyi::rules::quoted_annotation_in_stub(

crates/ruff_linter/src/codes.rs

@@ -928,7 +928,7 @@ pub fn code_to_rule(linter: Linter, code: &str) -> Option<(RuleGroup, Rule)> {
         (Flake8UsePathlib, "106") => (RuleGroup::Stable, rules::flake8_use_pathlib::rules::OsRmdir),
         (Flake8UsePathlib, "107") => (RuleGroup::Stable, rules::flake8_use_pathlib::rules::OsRemove),
         (Flake8UsePathlib, "108") => (RuleGroup::Stable, rules::flake8_use_pathlib::rules::OsUnlink),
-        (Flake8UsePathlib, "109") => (RuleGroup::Stable, rules::flake8_use_pathlib::rules::OsGetcwd),
+        (Flake8UsePathlib, "109") => (RuleGroup::Stable, rules::flake8_use_pathlib::violations::OsGetcwd),
         (Flake8UsePathlib, "110") => (RuleGroup::Stable, rules::flake8_use_pathlib::rules::OsPathExists),
         (Flake8UsePathlib, "111") => (RuleGroup::Stable, rules::flake8_use_pathlib::rules::OsPathExpanduser),
         (Flake8UsePathlib, "112") => (RuleGroup::Stable, rules::flake8_use_pathlib::rules::OsPathIsdir),

crates/ruff_linter/src/importer/insertion.rs

@@ -288,7 +288,7 @@ fn match_docstring_end(body: &[Stmt]) -> Option<TextSize> {
 fn match_semicolon(s: &str) -> Option<TextSize> {
     for (offset, c) in s.char_indices() {
         match c {
-            _ if is_python_whitespace(c) => continue,
+            ' ' | '\t' => continue,
             ';' => return Some(TextSize::try_from(offset).unwrap()),
             _ => break,
         }

crates/ruff_linter/src/importer/mod.rs

@@ -527,17 +527,6 @@ impl<'a> Importer<'a> {
             None
         }
     }
-
-    /// Add a `from __future__ import annotations` import.
-    pub(crate) fn add_future_import(&self) -> Edit {
-        let import = &NameImport::ImportFrom(MemberNameImport::member(
-            "__future__".to_string(),
-            "annotations".to_string(),
-        ));
-        // Note that `TextSize::default` should ensure that the import is added at the very
-        // beginning of the file via `Insertion::start_of_file`.
-        self.add_import(import, TextSize::default())
-    }
 }
 
 /// An edit to the top-level of a module, making it available at runtime.

crates/ruff_linter/src/message/mod.rs

@@ -15,6 +15,8 @@ pub use github::GithubEmitter;
 pub use gitlab::GitlabEmitter;
 pub use grouped::GroupedEmitter;
 pub use junit::JunitEmitter;
+pub use pylint::PylintEmitter;
+pub use rdjson::RdjsonEmitter;
 use ruff_notebook::NotebookIndex;
 use ruff_source_file::{LineColumn, SourceFile};
 use ruff_text_size::{Ranged, TextRange, TextSize};
@@ -29,6 +31,8 @@ mod github;
 mod gitlab;
 mod grouped;
 mod junit;
+mod pylint;
+mod rdjson;
 mod sarif;
 mod text;
 
@@ -76,13 +80,6 @@ where
         body,
     );
 
-    let span = Span::from(file).with_range(range);
-    let mut annotation = Annotation::primary(span);
-    if let Some(suggestion) = suggestion {
-        annotation = annotation.message(suggestion);
-    }
-    diagnostic.annotate(annotation);
-
     if let Some(fix) = fix {
         diagnostic.set_fix(fix);
     }
@@ -95,6 +92,13 @@ where
         diagnostic.set_noqa_offset(noqa_offset);
     }
 
+    let span = Span::from(file).with_range(range);
+    let mut annotation = Annotation::primary(span);
+    if let Some(suggestion) = suggestion {
+        annotation = annotation.message(suggestion);
+    }
+    diagnostic.annotate(annotation);
+
     diagnostic.set_secondary_code(SecondaryCode::new(rule.noqa_code().to_string()));
 
     diagnostic
@@ -126,10 +130,6 @@ impl FileResolver for EmitterContext<'_> {
             UnifiedFile::Ruff(file) => self.notebook_indexes.get(file.name()).is_some(),
         }
     }
-
-    fn current_directory(&self) -> &std::path::Path {
-        crate::fs::get_cwd()
-    }
 }
 
 struct MessageWithLocation<'a> {

crates/ruff_linter/src/message/pylint.rs

@@ -0,0 +1,72 @@
+use std::io::Write;
+
+use ruff_db::diagnostic::Diagnostic;
+use ruff_source_file::OneIndexed;
+
+use crate::fs::relativize_path;
+use crate::message::{Emitter, EmitterContext};
+
+/// Generate violations in Pylint format.
+/// See: [Flake8 documentation](https://flake8.pycqa.org/en/latest/internal/formatters.html#pylint-formatter)
+#[derive(Default)]
+pub struct PylintEmitter;
+
+impl Emitter for PylintEmitter {
+    fn emit(
+        &mut self,
+        writer: &mut dyn Write,
+        diagnostics: &[Diagnostic],
+        context: &EmitterContext,
+    ) -> anyhow::Result<()> {
+        for diagnostic in diagnostics {
+            let filename = diagnostic.expect_ruff_filename();
+            let row = if context.is_notebook(&filename) {
+                // We can't give a reasonable location for the structured formats,
+                // so we show one that's clearly a fallback
+                OneIndexed::from_zero_indexed(0)
+            } else {
+                diagnostic.expect_ruff_start_location().line
+            };
+
+            let body = if let Some(code) = diagnostic.secondary_code() {
+                format!("[{code}] {body}", body = diagnostic.body())
+            } else {
+                diagnostic.body().to_string()
+            };
+
+            writeln!(
+                writer,
+                "{path}:{row}: {body}",
+                path = relativize_path(&filename),
+            )?;
+        }
+
+        Ok(())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use insta::assert_snapshot;
+
+    use crate::message::PylintEmitter;
+    use crate::message::tests::{
+        capture_emitter_output, create_diagnostics, create_syntax_error_diagnostics,
+    };
+
+    #[test]
+    fn output() {
+        let mut emitter = PylintEmitter;
+        let content = capture_emitter_output(&mut emitter, &create_diagnostics());
+
+        assert_snapshot!(content);
+    }
+
+    #[test]
+    fn syntax_errors() {
+        let mut emitter = PylintEmitter;
+        let content = capture_emitter_output(&mut emitter, &create_syntax_error_diagnostics());
+
+        assert_snapshot!(content);
+    }
+}

crates/ruff_linter/src/message/rdjson.rs

@@ -0,0 +1,143 @@
+use std::io::Write;
+
+use serde::ser::SerializeSeq;
+use serde::{Serialize, Serializer};
+use serde_json::{Value, json};
+
+use ruff_db::diagnostic::Diagnostic;
+use ruff_source_file::SourceCode;
+use ruff_text_size::Ranged;
+
+use crate::Edit;
+use crate::message::{Emitter, EmitterContext, LineColumn};
+
+#[derive(Default)]
+pub struct RdjsonEmitter;
+
+impl Emitter for RdjsonEmitter {
+    fn emit(
+        &mut self,
+        writer: &mut dyn Write,
+        diagnostics: &[Diagnostic],
+        _context: &EmitterContext,
+    ) -> anyhow::Result<()> {
+        serde_json::to_writer_pretty(
+            writer,
+            &json!({
+                "source": {
+                    "name": "ruff",
+                    "url": "https://docs.astral.sh/ruff",
+                },
+                "severity": "warning",
+                "diagnostics": &ExpandedMessages{ diagnostics }
+            }),
+        )?;
+
+        Ok(())
+    }
+}
+
+struct ExpandedMessages<'a> {
+    diagnostics: &'a [Diagnostic],
+}
+
+impl Serialize for ExpandedMessages<'_> {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        let mut s = serializer.serialize_seq(Some(self.diagnostics.len()))?;
+
+        for message in self.diagnostics {
+            let value = message_to_rdjson_value(message);
+            s.serialize_element(&value)?;
+        }
+
+        s.end()
+    }
+}
+
+fn message_to_rdjson_value(message: &Diagnostic) -> Value {
+    let source_file = message.expect_ruff_source_file();
+    let source_code = source_file.to_source_code();
+
+    let start_location = source_code.line_column(message.expect_range().start());
+    let end_location = source_code.line_column(message.expect_range().end());
+
+    if let Some(fix) = message.fix() {
+        json!({
+            "message": message.body(),
+            "location": {
+                "path": message.expect_ruff_filename(),
+                "range": rdjson_range(start_location, end_location),
+            },
+            "code": {
+                "value": message.secondary_code(),
+                "url": message.to_ruff_url(),
+            },
+            "suggestions": rdjson_suggestions(fix.edits(), &source_code),
+        })
+    } else {
+        json!({
+            "message": message.body(),
+            "location": {
+                "path": message.expect_ruff_filename(),
+                "range": rdjson_range(start_location, end_location),
+            },
+            "code": {
+                "value": message.secondary_code(),
+                "url": message.to_ruff_url(),
+            },
+        })
+    }
+}
+
+fn rdjson_suggestions(edits: &[Edit], source_code: &SourceCode) -> Value {
+    Value::Array(
+        edits
+            .iter()
+            .map(|edit| {
+                let location = source_code.line_column(edit.start());
+                let end_location = source_code.line_column(edit.end());
+
+                json!({
+                    "range": rdjson_range(location, end_location),
+                    "text": edit.content().unwrap_or_default(),
+                })
+            })
+            .collect(),
+    )
+}
+
+fn rdjson_range(start: LineColumn, end: LineColumn) -> Value {
+    json!({
+        "start": start,
+        "end": end,
+    })
+}
+
+#[cfg(test)]
+mod tests {
+    use insta::assert_snapshot;
+
+    use crate::message::RdjsonEmitter;
+    use crate::message::tests::{
+        capture_emitter_output, create_diagnostics, create_syntax_error_diagnostics,
+    };
+
+    #[test]
+    fn output() {
+        let mut emitter = RdjsonEmitter;
+        let content = capture_emitter_output(&mut emitter, &create_diagnostics());
+
+        assert_snapshot!(content);
+    }
+
+    #[test]
+    fn syntax_errors() {
+        let mut emitter = RdjsonEmitter;
+        let content = capture_emitter_output(&mut emitter, &create_syntax_error_diagnostics());
+
+        assert_snapshot!(content);
+    }
+}

crates/ruff_linter/src/message/snapshots/ruff_linter__message__pylint__tests__output.snap

@@ -1,6 +1,7 @@
 ---
-source: crates/ruff_db/src/diagnostic/render/pylint.rs
-expression: env.render_diagnostics(&diagnostics)
+source: crates/ruff_linter/src/message/pylint.rs
+expression: content
+snapshot_kind: text
 ---
 fib.py:1: [F401] `os` imported but unused
 fib.py:6: [F841] Local variable `x` is assigned to but never used

crates/ruff_linter/src/message/snapshots/ruff_linter__message__pylint__tests__syntax_errors.snap

@@ -0,0 +1,7 @@
+---
+source: crates/ruff_linter/src/message/pylint.rs
+expression: content
+snapshot_kind: text
+---
+syntax_errors.py:1: SyntaxError: Expected one or more symbol names after import
+syntax_errors.py:3: SyntaxError: Expected ')', found newline

crates/ruff_linter/src/message/snapshots/ruff_linter__message__rdjson__tests__output.snap

@@ -1,6 +1,7 @@
 ---
-source: crates/ruff_db/src/diagnostic/render/rdjson.rs
-expression: env.render_diagnostics(&diagnostics)
+source: crates/ruff_linter/src/message/rdjson.rs
+expression: content
+snapshot_kind: text
 ---
 {
   "diagnostics": [
@@ -95,7 +96,7 @@ expression: env.render_diagnostics(&diagnostics)
       "message": "Undefined name `a`"
     }
   ],
-  "severity": "WARNING",
+  "severity": "warning",
   "source": {
     "name": "ruff",
     "url": "https://docs.astral.sh/ruff"

crates/ruff_linter/src/message/snapshots/ruff_linter__message__rdjson__tests__syntax_errors.snap

@@ -1,12 +1,14 @@
 ---
-source: crates/ruff_db/src/diagnostic/render/rdjson.rs
-expression: env.render_diagnostics(&diagnostics)
+source: crates/ruff_linter/src/message/rdjson.rs
+expression: content
+snapshot_kind: text
 ---
 {
   "diagnostics": [
     {
       "code": {
-        "value": "invalid-syntax"
+        "url": null,
+        "value": null
       },
       "location": {
         "path": "syntax_errors.py",
@@ -25,7 +27,8 @@ expression: env.render_diagnostics(&diagnostics)
     },
     {
       "code": {
-        "value": "invalid-syntax"
+        "url": null,
+        "value": null
       },
       "location": {
         "path": "syntax_errors.py",
@@ -43,7 +46,7 @@ expression: env.render_diagnostics(&diagnostics)
       "message": "SyntaxError: Expected ')', found newline"
     }
   ],
-  "severity": "WARNING",
+  "severity": "warning",
   "source": {
     "name": "ruff",
     "url": "https://docs.astral.sh/ruff"

crates/ruff_linter/src/preview.rs

@@ -134,11 +134,6 @@ pub(crate) const fn is_fix_os_path_dirname_enabled(settings: &LinterSettings) ->
     settings.preview.is_enabled()
 }
 
-// https://github.com/astral-sh/ruff/pull/19245
-pub(crate) const fn is_fix_os_getcwd_enabled(settings: &LinterSettings) -> bool {
-    settings.preview.is_enabled()
-}
-
 // https://github.com/astral-sh/ruff/pull/11436
 // https://github.com/astral-sh/ruff/pull/11168
 pub(crate) const fn is_dunder_init_fix_unused_import_enabled(settings: &LinterSettings) -> bool {
@@ -200,8 +195,3 @@ pub(crate) const fn is_safe_super_call_with_parameters_fix_enabled(
 pub(crate) const fn is_assert_raises_exception_call_enabled(settings: &LinterSettings) -> bool {
     settings.preview.is_enabled()
 }
-
-// https://github.com/astral-sh/ruff/pull/19100
-pub(crate) const fn is_add_future_annotations_imports_enabled(settings: &LinterSettings) -> bool {
-    settings.preview.is_enabled()
-}

crates/ruff_linter/src/rules/flake8_bugbear/snapshots/ruff_linter__rules__flake8_bugbear__tests__B018_B018.py.snap

@@ -1,5 +1,6 @@
 ---
 source: crates/ruff_linter/src/rules/flake8_bugbear/mod.rs
+snapshot_kind: text
 ---
 B018.py:11:5: B018 Found useless expression. Either assign it to a variable or remove it.
    |

crates/ruff_linter/src/rules/flake8_future_annotations/rules/future_required_type_annotation.rs

@@ -2,7 +2,8 @@ use std::fmt;
 
 use ruff_macros::{ViolationMetadata, derive_message_formats};
 use ruff_python_ast::Expr;
-use ruff_text_size::Ranged;
+use ruff_python_semantic::{MemberNameImport, NameImport};
+use ruff_text_size::{Ranged, TextSize};
 
 use crate::checkers::ast::Checker;
 use crate::{AlwaysFixableViolation, Fix};
@@ -84,7 +85,15 @@ impl AlwaysFixableViolation for FutureRequiredTypeAnnotation {
 
 /// FA102
 pub(crate) fn future_required_type_annotation(checker: &Checker, expr: &Expr, reason: Reason) {
-    checker
-        .report_diagnostic(FutureRequiredTypeAnnotation { reason }, expr.range())
-        .set_fix(Fix::unsafe_edit(checker.importer().add_future_import()));
+    let mut diagnostic =
+        checker.report_diagnostic(FutureRequiredTypeAnnotation { reason }, expr.range());
+    let required_import = NameImport::ImportFrom(MemberNameImport::member(
+        "__future__".to_string(),
+        "annotations".to_string(),
+    ));
+    diagnostic.set_fix(Fix::unsafe_edit(
+        checker
+            .importer()
+            .add_import(&required_import, TextSize::default()),
+    ));
 }

crates/ruff_linter/src/rules/flake8_future_annotations/rules/future_rewritable_type_annotation.rs

@@ -1,10 +1,12 @@
+use ruff_diagnostics::Fix;
 use ruff_python_ast::Expr;
 
 use ruff_macros::{ViolationMetadata, derive_message_formats};
+use ruff_python_semantic::{MemberNameImport, NameImport};
 use ruff_text_size::Ranged;
 
+use crate::AlwaysFixableViolation;
 use crate::checkers::ast::Checker;
-use crate::{AlwaysFixableViolation, Fix};
 
 /// ## What it does
 /// Checks for missing `from __future__ import annotations` imports upon
@@ -93,7 +95,15 @@ pub(crate) fn future_rewritable_type_annotation(checker: &Checker, expr: &Expr)
 
     let Some(name) = name else { return };
 
+    let import = &NameImport::ImportFrom(MemberNameImport::member(
+        "__future__".to_string(),
+        "annotations".to_string(),
+    ));
     checker
         .report_diagnostic(FutureRewritableTypeAnnotation { name }, expr.range())
-        .set_fix(Fix::unsafe_edit(checker.importer().add_future_import()));
+        .set_fix(Fix::unsafe_edit(
+            checker
+                .importer()
+                .add_import(import, ruff_text_size::TextSize::default()),
+        ));
 }

crates/ruff_linter/src/rules/flake8_gettext/snapshots/ruff_linter__rules__flake8_gettext__tests__f-string-in-get-text-func-call_INT001.py.snap

@@ -1,10 +1,9 @@
 ---
 source: crates/ruff_linter/src/rules/flake8_gettext/mod.rs
+snapshot_kind: text
 ---
 INT001.py:1:3: INT001 f-string is resolved before function call; consider `_("string %s") % arg`
   |
 1 | _(f"{'value'}")
   |   ^^^^^^^^^^^^ INT001
-2 |
-3 | # Don't trigger for t-strings
   |

crates/ruff_linter/src/rules/flake8_logging_format/snapshots/ruff_linter__rules__flake8_logging_format__tests__G004.py.snap

@@ -52,6 +52,4 @@ G004.py:15:6: G004 Logging statement uses f-string
 14 | info(f"{name}")
 15 | info(f"{__name__}")
    |      ^^^^^^^^^^^^^ G004
-16 |
-17 | # Don't trigger for t-strings
    |

crates/ruff_linter/src/rules/flake8_pytest_style/snapshots/ruff_linter__rules__flake8_pytest_style__tests__PT016.snap

@@ -1,5 +1,6 @@
 ---
 source: crates/ruff_linter/src/rules/flake8_pytest_style/mod.rs
+snapshot_kind: text
 ---
 PT016.py:19:5: PT016 No message passed to `pytest.fail()`
    |
@@ -66,6 +67,4 @@ PT016.py:25:5: PT016 No message passed to `pytest.fail()`
 24 |     pytest.fail(reason="")
 25 |     pytest.fail(reason=f"")
    |     ^^^^^^^^^^^ PT016
-26 |
-27 | # Skip for t-strings
    |

crates/ruff_linter/src/rules/flake8_type_checking/helpers.rs

@@ -8,110 +8,41 @@ use ruff_python_ast::{self as ast, Decorator, Expr, StringLiteralFlags};
 use ruff_python_codegen::{Generator, Stylist};
 use ruff_python_parser::typing::parse_type_annotation;
 use ruff_python_semantic::{
-    Binding, BindingKind, Modules, NodeId, ScopeKind, SemanticModel, analyze,
+    Binding, BindingKind, Modules, NodeId, ResolvedReference, ScopeKind, SemanticModel, analyze,
 };
 use ruff_text_size::{Ranged, TextRange};
 
 use crate::Edit;
 use crate::Locator;
-use crate::settings::LinterSettings;
+use crate::rules::flake8_type_checking::settings::Settings;
 
-/// Represents the kind of an existing or potential typing-only annotation.
-///
-/// Note that the order of variants is important here. `Runtime` has the highest precedence when
-/// calling [`TypingReference::combine`] on two references, followed by `Future`, `Quote`, and
-/// `TypingOnly` with the lowest precedence.
-#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)]
-pub(crate) enum TypingReference {
-    /// The reference is in a runtime-evaluated context.
-    Runtime,
-    /// The reference is in a runtime-evaluated context, but the
-    /// `lint.future-annotations` setting is enabled.
-    ///
-    /// This takes precedence if both quoting and future imports are enabled.
-    Future,
-    /// The reference is in a runtime-evaluated context, but the
-    /// `lint.flake8-type-checking.quote-annotations` setting is enabled.
-    Quote,
-    /// The reference is in a typing-only context.
-    TypingOnly,
-}
-
-impl TypingReference {
-    /// Determine the kind of [`TypingReference`] for all references to a binding.
-    pub(crate) fn from_references(
-        binding: &Binding,
-        semantic: &SemanticModel,
-        settings: &LinterSettings,
-    ) -> Self {
-        let references = binding
-            .references()
-            .map(|reference_id| semantic.reference(reference_id));
-        let mut kind = Self::TypingOnly;
-        for reference in references {
-            if reference.in_type_checking_block() {
-                kind = kind.combine(Self::TypingOnly);
-                continue;
-            }
-
-            // if we're not in a type checking block, we necessarily need to be within a
-            // type definition to be considered a typing reference
-            if !reference.in_type_definition() {
-                return Self::Runtime;
-            }
-
-            if reference.in_typing_only_annotation() || reference.in_string_type_definition() {
-                kind = kind.combine(Self::TypingOnly);
-                continue;
-            }
-
-            // prefer `from __future__ import annotations` to quoting
-            if settings.future_annotations()
-                && !reference.in_typing_only_annotation()
-                && reference.in_runtime_evaluated_annotation()
-            {
-                kind = kind.combine(Self::Future);
-                continue;
-            }
-
-            if settings.flake8_type_checking.quote_annotations
-                && reference.in_runtime_evaluated_annotation()
-            {
-                kind = kind.combine(Self::Quote);
-                continue;
-            }
-
-            return Self::Runtime;
-        }
-
-        kind
-    }
-
-    /// Logically combine two `TypingReference`s into one.
-    ///
-    /// `TypingReference::Runtime` has the highest precedence, followed by
-    /// `TypingReference::Future`, `TypingReference::Quote`, and then `TypingReference::TypingOnly`.
-    fn combine(self, other: TypingReference) -> TypingReference {
-        self.min(other)
-    }
-
-    fn is_runtime(self) -> bool {
-        matches!(self, Self::Runtime)
-    }
+/// Returns `true` if the [`ResolvedReference`] is in a typing-only context _or_ a runtime-evaluated
+/// context (with quoting enabled).
+pub(crate) fn is_typing_reference(reference: &ResolvedReference, settings: &Settings) -> bool {
+    reference.in_type_checking_block()
+        // if we're not in a type checking block, we necessarily need to be within a
+        // type definition to be considered a typing reference
+        || (reference.in_type_definition()
+            && (reference.in_typing_only_annotation()
+                || reference.in_string_type_definition()
+                || (settings.quote_annotations && reference.in_runtime_evaluated_annotation())))
 }
 
 /// Returns `true` if the [`Binding`] represents a runtime-required import.
 pub(crate) fn is_valid_runtime_import(
     binding: &Binding,
     semantic: &SemanticModel,
-    settings: &LinterSettings,
+    settings: &Settings,
 ) -> bool {
     if matches!(
         binding.kind,
         BindingKind::Import(..) | BindingKind::FromImport(..) | BindingKind::SubmoduleImport(..)
     ) {
         binding.context.is_runtime()
-            && TypingReference::from_references(binding, semantic, settings).is_runtime()
+            && binding
+                .references()
+                .map(|reference_id| semantic.reference(reference_id))
+                .any(|reference| !is_typing_reference(reference, settings))
     } else {
         false
     }

crates/ruff_linter/src/rules/flake8_type_checking/imports.rs

@@ -13,8 +13,6 @@ pub(crate) struct ImportBinding<'a> {
     pub(crate) range: TextRange,
     /// The range of the import's parent statement.
     pub(crate) parent_range: Option<TextRange>,
-    /// Whether the binding needs `from __future__ import annotations` to be imported.
-    pub(crate) needs_future_import: bool,
 }
 
 impl Ranged for ImportBinding<'_> {

crates/ruff_linter/src/rules/flake8_type_checking/mod.rs

@@ -9,12 +9,10 @@ mod tests {
     use std::path::Path;
 
     use anyhow::Result;
-    use itertools::Itertools;
     use ruff_python_ast::PythonVersion;
     use test_case::test_case;
 
     use crate::registry::{Linter, Rule};
-    use crate::settings::types::PreviewMode;
     use crate::test::{test_path, test_snippet};
     use crate::{assert_diagnostics, settings};
 
@@ -66,40 +64,6 @@ mod tests {
         Ok(())
     }
 
-    #[test_case(&[Rule::TypingOnlyFirstPartyImport], Path::new("TC001.py"))]
-    #[test_case(&[Rule::TypingOnlyThirdPartyImport], Path::new("TC002.py"))]
-    #[test_case(&[Rule::TypingOnlyStandardLibraryImport], Path::new("TC003.py"))]
-    #[test_case(
-        &[
-            Rule::TypingOnlyFirstPartyImport,
-            Rule::TypingOnlyThirdPartyImport,
-            Rule::TypingOnlyStandardLibraryImport,
-        ],
-        Path::new("TC001-3_future.py")
-    )]
-    #[test_case(&[Rule::TypingOnlyFirstPartyImport], Path::new("TC001_future.py"))]
-    #[test_case(&[Rule::TypingOnlyFirstPartyImport], Path::new("TC001_future_present.py"))]
-    fn add_future_import(rules: &[Rule], path: &Path) -> Result<()> {
-        let name = rules.iter().map(Rule::noqa_code).join("-");
-        let snapshot = format!("add_future_import__{}_{}", name, path.to_string_lossy());
-        let diagnostics = test_path(
-            Path::new("flake8_type_checking").join(path).as_path(),
-            &settings::LinterSettings {
-                future_annotations: true,
-                preview: PreviewMode::Enabled,
-                // also enable quoting annotations to check the interaction. the future import
-                // should take precedence.
-                flake8_type_checking: super::settings::Settings {
-                    quote_annotations: true,
-                    ..Default::default()
-                },
-                ..settings::LinterSettings::for_rules(rules.iter().copied())
-            },
-        )?;
-        assert_diagnostics!(snapshot, diagnostics);
-        Ok(())
-    }
-
     // we test these rules as a pair, since they're opposites of one another
     // so we want to make sure their fixes are not going around in circles.
     #[test_case(Rule::UnquotedTypeAlias, Path::new("TC007.py"))]

crates/ruff_linter/src/rules/flake8_type_checking/rules/runtime_import_in_type_checking_block.rs

@@ -139,7 +139,6 @@ pub(crate) fn runtime_import_in_type_checking_block(checker: &Checker, scope: &S
                 binding,
                 range: binding.range(),
                 parent_range: binding.parent_range(checker.semantic()),
-                needs_future_import: false, // TODO(brent) See #19359.
             };
 
             if checker.rule_is_ignored(Rule::RuntimeImportInTypeCheckingBlock, import.start())

crates/ruff_linter/src/rules/flake8_type_checking/rules/runtime_string_union.rs

@@ -23,28 +23,17 @@ use crate::checkers::ast::Checker;
 ///
 /// ## Example
 /// ```python
-/// var: "Foo" | None
-///
-///
-/// class Foo: ...
+/// var: str | "int"
 /// ```
 ///
 /// Use instead:
 /// ```python
-/// from __future__ import annotations
-///
-/// var: Foo | None
-///
-///
-/// class Foo: ...
+/// var: str | int
 /// ```
 ///
 /// Or, extend the quotes to include the entire union:
 /// ```python
-/// var: "Foo | None"
-///
-///
-/// class Foo: ...
+/// var: "str | int"
 /// ```
 ///
 /// ## References

crates/ruff_linter/src/rules/flake8_type_checking/rules/typing_only_runtime_import.rs

@@ -13,7 +13,7 @@ use crate::fix;
 use crate::importer::ImportedMembers;
 use crate::preview::is_full_path_match_source_strategy_enabled;
 use crate::rules::flake8_type_checking::helpers::{
-    TypingReference, filter_contained, quote_annotation,
+    filter_contained, is_typing_reference, quote_annotation,
 };
 use crate::rules::flake8_type_checking::imports::ImportBinding;
 use crate::rules::isort::categorize::MatchSourceStrategy;
@@ -71,19 +71,12 @@ use crate::{Fix, FixAvailability, Violation};
 /// the criterion for determining whether an import is first-party
 /// is stricter, which could affect whether this lint is triggered vs [`TC001`](https://docs.astral.sh/ruff/rules/typing-only-third-party-import/). See [this FAQ section](https://docs.astral.sh/ruff/faq/#how-does-ruff-determine-which-of-my-imports-are-first-party-third-party-etc) for more details.
 ///
-/// If [`lint.future-annotations`] is set to `true`, `from __future__ import
-/// annotations` will be added if doing so would enable an import to be moved into an `if
-/// TYPE_CHECKING:` block. This takes precedence over the
-/// [`lint.flake8-type-checking.quote-annotations`] setting described above if both settings are
-/// enabled.
-///
 /// ## Options
 /// - `lint.flake8-type-checking.quote-annotations`
 /// - `lint.flake8-type-checking.runtime-evaluated-base-classes`
 /// - `lint.flake8-type-checking.runtime-evaluated-decorators`
 /// - `lint.flake8-type-checking.strict`
 /// - `lint.typing-modules`
-/// - `lint.future-annotations`
 ///
 /// ## References
 /// - [PEP 563: Runtime annotation resolution and `TYPE_CHECKING`](https://peps.python.org/pep-0563/#runtime-annotation-resolution-and-type-checking)
@@ -158,19 +151,12 @@ impl Violation for TypingOnlyFirstPartyImport {
 /// the criterion for determining whether an import is first-party
 /// is stricter, which could affect whether this lint is triggered vs [`TC001`](https://docs.astral.sh/ruff/rules/typing-only-first-party-import/). See [this FAQ section](https://docs.astral.sh/ruff/faq/#how-does-ruff-determine-which-of-my-imports-are-first-party-third-party-etc) for more details.
 ///
-/// If [`lint.future-annotations`] is set to `true`, `from __future__ import
-/// annotations` will be added if doing so would enable an import to be moved into an `if
-/// TYPE_CHECKING:` block. This takes precedence over the
-/// [`lint.flake8-type-checking.quote-annotations`] setting described above if both settings are
-/// enabled.
-///
 /// ## Options
 /// - `lint.flake8-type-checking.quote-annotations`
 /// - `lint.flake8-type-checking.runtime-evaluated-base-classes`
 /// - `lint.flake8-type-checking.runtime-evaluated-decorators`
 /// - `lint.flake8-type-checking.strict`
 /// - `lint.typing-modules`
-/// - `lint.future-annotations`
 ///
 /// ## References
 /// - [PEP 563: Runtime annotation resolution and `TYPE_CHECKING`](https://peps.python.org/pep-0563/#runtime-annotation-resolution-and-type-checking)
@@ -240,22 +226,12 @@ impl Violation for TypingOnlyThirdPartyImport {
 ///     return str(path)
 /// ```
 ///
-/// ## Preview
-///
-/// When [preview](https://docs.astral.sh/ruff/preview/) is enabled, if
-/// [`lint.future-annotations`] is set to `true`, `from __future__ import
-/// annotations` will be added if doing so would enable an import to be moved into an `if
-/// TYPE_CHECKING:` block. This takes precedence over the
-/// [`lint.flake8-type-checking.quote-annotations`] setting described above if both settings are
-/// enabled.
-///
 /// ## Options
 /// - `lint.flake8-type-checking.quote-annotations`
 /// - `lint.flake8-type-checking.runtime-evaluated-base-classes`
 /// - `lint.flake8-type-checking.runtime-evaluated-decorators`
 /// - `lint.flake8-type-checking.strict`
 /// - `lint.typing-modules`
-/// - `lint.future-annotations`
 ///
 /// ## References
 /// - [PEP 563: Runtime annotation resolution and `TYPE_CHECKING`](https://peps.python.org/pep-0563/#runtime-annotation-resolution-and-type-checking)
@@ -295,10 +271,9 @@ pub(crate) fn typing_only_runtime_import(
     for binding_id in scope.binding_ids() {
         let binding = checker.semantic().binding(binding_id);
 
-        // If we can't add a `__future__` import and in un-strict mode, don't flag typing-only
-        // imports that are implicitly loaded by way of a valid runtime import.
-        if !checker.settings().future_annotations()
-            && !checker.settings().flake8_type_checking.strict
+        // If we're in un-strict mode, don't flag typing-only imports that are
+        // implicitly loaded by way of a valid runtime import.
+        if !checker.settings().flake8_type_checking.strict
             && runtime_imports
                 .iter()
                 .any(|import| is_implicit_import(binding, import))
@@ -314,102 +289,95 @@ pub(crate) fn typing_only_runtime_import(
             continue;
         };
 
-        if !binding.context.is_runtime() {
-            continue;
-        }
+        if binding.context.is_runtime()
+            && binding
+                .references()
+                .map(|reference_id| checker.semantic().reference(reference_id))
+                .all(|reference| {
+                    is_typing_reference(reference, &checker.settings().flake8_type_checking)
+                })
+        {
+            let qualified_name = import.qualified_name();
 
-        let typing_reference =
-            TypingReference::from_references(binding, checker.semantic(), checker.settings());
-
-        let needs_future_import = match typing_reference {
-            TypingReference::Runtime => continue,
-            // We can only get the `Future` variant if `future_annotations` is
-            // enabled, so we can unconditionally set this here.
-            TypingReference::Future => true,
-            TypingReference::TypingOnly | TypingReference::Quote => false,
-        };
-
-        let qualified_name = import.qualified_name();
-
-        if is_exempt(
-            &qualified_name.to_string(),
-            &checker
-                .settings()
-                .flake8_type_checking
-                .exempt_modules
-                .iter()
-                .map(String::as_str)
-                .collect::<Vec<_>>(),
-        ) {
-            continue;
-        }
-
-        let source_name = import.source_name().join(".");
-
-        // Categorize the import, using coarse-grained categorization.
-        let match_source_strategy =
-            if is_full_path_match_source_strategy_enabled(checker.settings()) {
-                MatchSourceStrategy::FullPath
-            } else {
-                MatchSourceStrategy::Root
-            };
-
-        let import_type = match categorize(
-            &source_name,
-            qualified_name.is_unresolved_import(),
-            &checker.settings().src,
-            checker.package(),
-            checker.settings().isort.detect_same_package,
-            &checker.settings().isort.known_modules,
-            checker.target_version(),
-            checker.settings().isort.no_sections,
-            &checker.settings().isort.section_order,
-            &checker.settings().isort.default_section,
-            match_source_strategy,
-        ) {
-            ImportSection::Known(ImportType::LocalFolder | ImportType::FirstParty) => {
-                ImportType::FirstParty
-            }
-            ImportSection::Known(ImportType::ThirdParty) | ImportSection::UserDefined(_) => {
-                ImportType::ThirdParty
-            }
-            ImportSection::Known(ImportType::StandardLibrary) => ImportType::StandardLibrary,
-            ImportSection::Known(ImportType::Future) => {
+            if is_exempt(
+                &qualified_name.to_string(),
+                &checker
+                    .settings()
+                    .flake8_type_checking
+                    .exempt_modules
+                    .iter()
+                    .map(String::as_str)
+                    .collect::<Vec<_>>(),
+            ) {
                 continue;
             }
-        };
 
-        if !checker.is_rule_enabled(rule_for(import_type)) {
-            continue;
-        }
+            let source_name = import.source_name().join(".");
 
-        let Some(node_id) = binding.source else {
-            continue;
-        };
+            // Categorize the import, using coarse-grained categorization.
+            let match_source_strategy =
+                if is_full_path_match_source_strategy_enabled(checker.settings()) {
+                    MatchSourceStrategy::FullPath
+                } else {
+                    MatchSourceStrategy::Root
+                };
 
-        let import = ImportBinding {
-            import,
-            reference_id,
-            binding,
-            range: binding.range(),
-            parent_range: binding.parent_range(checker.semantic()),
-            needs_future_import,
-        };
+            let import_type = match categorize(
+                &source_name,
+                qualified_name.is_unresolved_import(),
+                &checker.settings().src,
+                checker.package(),
+                checker.settings().isort.detect_same_package,
+                &checker.settings().isort.known_modules,
+                checker.target_version(),
+                checker.settings().isort.no_sections,
+                &checker.settings().isort.section_order,
+                &checker.settings().isort.default_section,
+                match_source_strategy,
+            ) {
+                ImportSection::Known(ImportType::LocalFolder | ImportType::FirstParty) => {
+                    ImportType::FirstParty
+                }
+                ImportSection::Known(ImportType::ThirdParty) | ImportSection::UserDefined(_) => {
+                    ImportType::ThirdParty
+                }
+                ImportSection::Known(ImportType::StandardLibrary) => ImportType::StandardLibrary,
+                ImportSection::Known(ImportType::Future) => {
+                    continue;
+                }
+            };
 
-        if checker.rule_is_ignored(rule_for(import_type), import.start())
-            || import.parent_range.is_some_and(|parent_range| {
-                checker.rule_is_ignored(rule_for(import_type), parent_range.start())
-            })
-        {
-            ignores_by_statement
-                .entry((node_id, import_type))
-                .or_default()
-                .push(import);
-        } else {
-            errors_by_statement
-                .entry((node_id, import_type))
-                .or_default()
-                .push(import);
+            if !checker.is_rule_enabled(rule_for(import_type)) {
+                continue;
+            }
+
+            let Some(node_id) = binding.source else {
+                continue;
+            };
+
+            let import = ImportBinding {
+                import,
+                reference_id,
+                binding,
+                range: binding.range(),
+                parent_range: binding.parent_range(checker.semantic()),
+            };
+
+            if checker.rule_is_ignored(rule_for(import_type), import.start())
+                || import.parent_range.is_some_and(|parent_range| {
+                    checker.rule_is_ignored(rule_for(import_type), parent_range.start())
+                })
+            {
+                ignores_by_statement
+                    .entry((node_id, import_type))
+                    .or_default()
+                    .push(import);
+            } else {
+                errors_by_statement
+                    .entry((node_id, import_type))
+                    .or_default()
+                    .push(import);
+            }
         }
     }
 
@@ -541,8 +509,6 @@ fn fix_imports(checker: &Checker, node_id: NodeId, imports: &[ImportBinding]) ->
         .min()
         .expect("Expected at least one import");
 
-    let add_future_import = imports.iter().any(|binding| binding.needs_future_import);
-
     // Step 1) Remove the import.
     let remove_import_edit = fix::edits::remove_unused_imports(
         member_names.iter().map(AsRef::as_ref),
@@ -566,52 +532,37 @@ fn fix_imports(checker: &Checker, node_id: NodeId, imports: &[ImportBinding]) ->
         )?
         .into_edits();
 
-    // Step 3) Either add a `__future__` import or quote any runtime usages of the referenced
-    // symbol.
-    let fix = if add_future_import {
-        let future_import = checker.importer().add_future_import();
-
-        // The order here is very important. We first need to add the `__future__` import, if
-        // needed, since it's a syntax error to come later. Then `type_checking_edit` imports
-        // `TYPE_CHECKING`, if available. Then we can add and/or remove existing imports.
-        Fix::unsafe_edits(
-            future_import,
-            std::iter::once(type_checking_edit)
-                .chain(add_import_edit)
-                .chain(std::iter::once(remove_import_edit)),
-        )
-    } else {
-        let quote_reference_edits = filter_contained(
-            imports
-                .iter()
-                .flat_map(|ImportBinding { binding, .. }| {
-                    binding.references.iter().filter_map(|reference_id| {
-                        let reference = checker.semantic().reference(*reference_id);
-                        if reference.in_runtime_context() {
-                            Some(quote_annotation(
-                                reference.expression_id()?,
-                                checker.semantic(),
-                                checker.stylist(),
-                                checker.locator(),
-                                checker.default_string_flags(),
-                            ))
-                        } else {
-                            None
-                        }
-                    })
+    // Step 3) Quote any runtime usages of the referenced symbol.
+    let quote_reference_edits = filter_contained(
+        imports
+            .iter()
+            .flat_map(|ImportBinding { binding, .. }| {
+                binding.references.iter().filter_map(|reference_id| {
+                    let reference = checker.semantic().reference(*reference_id);
+                    if reference.in_runtime_context() {
+                        Some(quote_annotation(
+                            reference.expression_id()?,
+                            checker.semantic(),
+                            checker.stylist(),
+                            checker.locator(),
+                            checker.default_string_flags(),
+                        ))
+                    } else {
+                        None
+                    }
                 })
-                .collect::<Vec<_>>(),
-        );
-        Fix::unsafe_edits(
-            type_checking_edit,
-            add_import_edit
-                .into_iter()
-                .chain(std::iter::once(remove_import_edit))
-                .chain(quote_reference_edits),
-        )
-    };
+            })
+            .collect::<Vec<_>>(),
+    );
 
-    Ok(fix.isolate(Checker::isolation(
+    Ok(Fix::unsafe_edits(
+        type_checking_edit,
+        add_import_edit
+            .into_iter()
+            .chain(std::iter::once(remove_import_edit))
+            .chain(quote_reference_edits),
+    )
+    .isolate(Checker::isolation(
         checker.semantic().parent_statement_id(node_id),
     )))
 }

crates/ruff_linter/src/rules/flake8_type_checking/snapshots/ruff_linter__rules__flake8_type_checking__tests__add_future_import__TC001-TC002-TC003_TC001-3_future.py.snap

@@ -1,76 +0,0 @@
----
-source: crates/ruff_linter/src/rules/flake8_type_checking/mod.rs
----
-TC001-3_future.py:1:25: TC003 [*] Move standard library import `collections.Counter` into a type-checking block
-  |
-1 | from collections import Counter
-  |                         ^^^^^^^ TC003
-2 |
-3 | from elsewhere import third_party
-  |
-  = help: Move into type-checking block
-
-ℹ Unsafe fix
-1     |-from collections import Counter
-   1  |+from __future__ import annotations
-2  2  | 
-3  3  | from elsewhere import third_party
-4  4  | 
-5  5  | from . import first_party
-   6  |+from typing import TYPE_CHECKING
-   7  |+
-   8  |+if TYPE_CHECKING:
-   9  |+    from collections import Counter
-6  10 | 
-7  11 | 
-8  12 | def f(x: first_party.foo): ...
-
-TC001-3_future.py:3:23: TC002 [*] Move third-party import `elsewhere.third_party` into a type-checking block
-  |
-1 | from collections import Counter
-2 |
-3 | from elsewhere import third_party
-  |                       ^^^^^^^^^^^ TC002
-4 |
-5 | from . import first_party
-  |
-  = help: Move into type-checking block
-
-ℹ Unsafe fix
-   1  |+from __future__ import annotations
-1  2  | from collections import Counter
-2  3  | 
-3     |-from elsewhere import third_party
-4  4  | 
-5  5  | from . import first_party
-   6  |+from typing import TYPE_CHECKING
-   7  |+
-   8  |+if TYPE_CHECKING:
-   9  |+    from elsewhere import third_party
-6  10 | 
-7  11 | 
-8  12 | def f(x: first_party.foo): ...
-
-TC001-3_future.py:5:15: TC001 [*] Move application import `.first_party` into a type-checking block
-  |
-3 | from elsewhere import third_party
-4 |
-5 | from . import first_party
-  |               ^^^^^^^^^^^ TC001
-  |
-  = help: Move into type-checking block
-
-ℹ Unsafe fix
-   1  |+from __future__ import annotations
-1  2  | from collections import Counter
-2  3  | 
-3  4  | from elsewhere import third_party
-4  5  | 
-5     |-from . import first_party
-   6  |+from typing import TYPE_CHECKING
-   7  |+
-   8  |+if TYPE_CHECKING:
-   9  |+    from . import first_party
-6  10 | 
-7  11 | 
-8  12 | def f(x: first_party.foo): ...

crates/ruff_linter/src/rules/flake8_type_checking/snapshots/ruff_linter__rules__flake8_type_checking__tests__add_future_import__TC001_TC001.py.snap

@@ -1,32 +0,0 @@
----
-source: crates/ruff_linter/src/rules/flake8_type_checking/mod.rs
----
-TC001.py:20:19: TC001 [*] Move application import `.TYP001` into a type-checking block
-   |
-19 | def f():
-20 |     from . import TYP001
-   |                   ^^^^^^ TC001
-21 |
-22 |     x: TYP001
-   |
-   = help: Move into type-checking block
-
-ℹ Unsafe fix
-2  2  | 
-3  3  | For typing-only import detection tests, see `TC002.py`.
-4  4  | """
-   5  |+from typing import TYPE_CHECKING
-   6  |+
-   7  |+if TYPE_CHECKING:
-   8  |+    from . import TYP001
-5  9  | 
-6  10 | 
-7  11 | def f():
---------------------------------------------------------------------------------
-17 21 | 
-18 22 | 
-19 23 | def f():
-20    |-    from . import TYP001
-21 24 | 
-22 25 |     x: TYP001
-23 26 |

crates/ruff_linter/src/rules/flake8_type_checking/snapshots/ruff_linter__rules__flake8_type_checking__tests__add_future_import__TC001_TC001_future.py.snap

@@ -1,56 +0,0 @@
----
-source: crates/ruff_linter/src/rules/flake8_type_checking/mod.rs
----
-TC001_future.py:2:19: TC001 [*] Move application import `.first_party` into a type-checking block
-  |
-1 | def f():
-2 |     from . import first_party
-  |                   ^^^^^^^^^^^ TC001
-3 |
-4 |     def f(x: first_party.foo): ...
-  |
-  = help: Move into type-checking block
-
-ℹ Unsafe fix
-1   |-def f():
-  1 |+from __future__ import annotations
-  2 |+from typing import TYPE_CHECKING
-  3 |+
-  4 |+if TYPE_CHECKING:
-2 5 |     from . import first_party
-  6 |+def f():
-3 7 | 
-4 8 |     def f(x: first_party.foo): ...
-5 9 | 
-
-TC001_future.py:57:19: TC001 [*] Move application import `.foo` into a type-checking block
-   |
-56 | def n():
-57 |     from . import foo
-   |                   ^^^ TC001
-58 |
-59 |     def f(x: Union[foo.Ty, int]): ...
-   |
-   = help: Move into type-checking block
-
-ℹ Unsafe fix
-   1  |+from __future__ import annotations
-1  2  | def f():
-2  3  |     from . import first_party
-3  4  | 
---------------------------------------------------------------------------------
-50 51 | 
-51 52 | 
-52 53 | # unions
-53    |-from typing import Union
-   54 |+from typing import Union, TYPE_CHECKING
-54 55 | 
-   56 |+if TYPE_CHECKING:
-   57 |+    from . import foo
-   58 |+
-55 59 | 
-56 60 | def n():
-57    |-    from . import foo
-58 61 | 
-59 62 |     def f(x: Union[foo.Ty, int]): ...
-60 63 |     def g(x: foo.Ty | int): ...

crates/ruff_linter/src/rules/flake8_type_checking/snapshots/ruff_linter__rules__flake8_type_checking__tests__add_future_import__TC001_TC001_future_present.py.snap

@@ -1,23 +0,0 @@
----
-source: crates/ruff_linter/src/rules/flake8_type_checking/mod.rs
----
-TC001_future_present.py:3:15: TC001 [*] Move application import `.first_party` into a type-checking block
-  |
-1 | from __future__ import annotations
-2 |
-3 | from . import first_party
-  |               ^^^^^^^^^^^ TC001
-  |
-  = help: Move into type-checking block
-
-ℹ Unsafe fix
-1 1 | from __future__ import annotations
-2 2 | 
-3   |-from . import first_party
-  3 |+from typing import TYPE_CHECKING
-  4 |+
-  5 |+if TYPE_CHECKING:
-  6 |+    from . import first_party
-4 7 | 
-5 8 | 
-6 9 | def f(x: first_party.foo): ...

crates/ruff_linter/src/rules/flake8_type_checking/snapshots/ruff_linter__rules__flake8_type_checking__tests__add_future_import__TC002_TC002.py.snap

@@ -1,251 +0,0 @@
----
-source: crates/ruff_linter/src/rules/flake8_type_checking/mod.rs
----
-TC002.py:5:22: TC002 [*] Move third-party import `pandas` into a type-checking block
-  |
-4 | def f():
-5 |     import pandas as pd  # TC002
-  |                      ^^ TC002
-6 |
-7 |     x: pd.DataFrame
-  |
-  = help: Move into type-checking block
-
-ℹ Unsafe fix
-1 1 | """Tests to determine accurate detection of typing-only imports."""
-  2 |+from typing import TYPE_CHECKING
-  3 |+
-  4 |+if TYPE_CHECKING:
-  5 |+    import pandas as pd
-2 6 | 
-3 7 | 
-4 8 | def f():
-5   |-    import pandas as pd  # TC002
-6 9 | 
-7 10 |     x: pd.DataFrame
-8 11 | 
-
-TC002.py:11:24: TC002 [*] Move third-party import `pandas.DataFrame` into a type-checking block
-   |
-10 | def f():
-11 |     from pandas import DataFrame  # TC002
-   |                        ^^^^^^^^^ TC002
-12 |
-13 |     x: DataFrame
-   |
-   = help: Move into type-checking block
-
-ℹ Unsafe fix
-1  1  | """Tests to determine accurate detection of typing-only imports."""
-   2  |+from typing import TYPE_CHECKING
-   3  |+
-   4  |+if TYPE_CHECKING:
-   5  |+    from pandas import DataFrame
-2  6  | 
-3  7  | 
-4  8  | def f():
---------------------------------------------------------------------------------
-8  12 | 
-9  13 | 
-10 14 | def f():
-11    |-    from pandas import DataFrame  # TC002
-12 15 | 
-13 16 |     x: DataFrame
-14 17 | 
-
-TC002.py:17:37: TC002 [*] Move third-party import `pandas.DataFrame` into a type-checking block
-   |
-16 | def f():
-17 |     from pandas import DataFrame as df  # TC002
-   |                                     ^^ TC002
-18 |
-19 |     x: df
-   |
-   = help: Move into type-checking block
-
-ℹ Unsafe fix
-1  1  | """Tests to determine accurate detection of typing-only imports."""
-   2  |+from typing import TYPE_CHECKING
-   3  |+
-   4  |+if TYPE_CHECKING:
-   5  |+    from pandas import DataFrame as df
-2  6  | 
-3  7  | 
-4  8  | def f():
---------------------------------------------------------------------------------
-14 18 | 
-15 19 | 
-16 20 | def f():
-17    |-    from pandas import DataFrame as df  # TC002
-18 21 | 
-19 22 |     x: df
-20 23 | 
-
-TC002.py:23:22: TC002 [*] Move third-party import `pandas` into a type-checking block
-   |
-22 | def f():
-23 |     import pandas as pd  # TC002
-   |                      ^^ TC002
-24 |
-25 |     x: pd.DataFrame = 1
-   |
-   = help: Move into type-checking block
-
-ℹ Unsafe fix
-1  1  | """Tests to determine accurate detection of typing-only imports."""
-   2  |+from typing import TYPE_CHECKING
-   3  |+
-   4  |+if TYPE_CHECKING:
-   5  |+    import pandas as pd
-2  6  | 
-3  7  | 
-4  8  | def f():
---------------------------------------------------------------------------------
-20 24 | 
-21 25 | 
-22 26 | def f():
-23    |-    import pandas as pd  # TC002
-24 27 | 
-25 28 |     x: pd.DataFrame = 1
-26 29 | 
-
-TC002.py:29:24: TC002 [*] Move third-party import `pandas.DataFrame` into a type-checking block
-   |
-28 | def f():
-29 |     from pandas import DataFrame  # TC002
-   |                        ^^^^^^^^^ TC002
-30 |
-31 |     x: DataFrame = 2
-   |
-   = help: Move into type-checking block
-
-ℹ Unsafe fix
-1  1  | """Tests to determine accurate detection of typing-only imports."""
-   2  |+from typing import TYPE_CHECKING
-   3  |+
-   4  |+if TYPE_CHECKING:
-   5  |+    from pandas import DataFrame
-2  6  | 
-3  7  | 
-4  8  | def f():
---------------------------------------------------------------------------------
-26 30 | 
-27 31 | 
-28 32 | def f():
-29    |-    from pandas import DataFrame  # TC002
-30 33 | 
-31 34 |     x: DataFrame = 2
-32 35 | 
-
-TC002.py:35:37: TC002 [*] Move third-party import `pandas.DataFrame` into a type-checking block
-   |
-34 | def f():
-35 |     from pandas import DataFrame as df  # TC002
-   |                                     ^^ TC002
-36 |
-37 |     x: df = 3
-   |
-   = help: Move into type-checking block
-
-ℹ Unsafe fix
-1  1  | """Tests to determine accurate detection of typing-only imports."""
-   2  |+from typing import TYPE_CHECKING
-   3  |+
-   4  |+if TYPE_CHECKING:
-   5  |+    from pandas import DataFrame as df
-2  6  | 
-3  7  | 
-4  8  | def f():
---------------------------------------------------------------------------------
-32 36 | 
-33 37 | 
-34 38 | def f():
-35    |-    from pandas import DataFrame as df  # TC002
-36 39 | 
-37 40 |     x: df = 3
-38 41 | 
-
-TC002.py:41:22: TC002 [*] Move third-party import `pandas` into a type-checking block
-   |
-40 | def f():
-41 |     import pandas as pd  # TC002
-   |                      ^^ TC002
-42 |
-43 |     x: "pd.DataFrame" = 1
-   |
-   = help: Move into type-checking block
-
-ℹ Unsafe fix
-1  1  | """Tests to determine accurate detection of typing-only imports."""
-   2  |+from typing import TYPE_CHECKING
-   3  |+
-   4  |+if TYPE_CHECKING:
-   5  |+    import pandas as pd
-2  6  | 
-3  7  | 
-4  8  | def f():
---------------------------------------------------------------------------------
-38 42 | 
-39 43 | 
-40 44 | def f():
-41    |-    import pandas as pd  # TC002
-42 45 | 
-43 46 |     x: "pd.DataFrame" = 1
-44 47 | 
-
-TC002.py:47:22: TC002 [*] Move third-party import `pandas` into a type-checking block
-   |
-46 | def f():
-47 |     import pandas as pd  # TC002
-   |                      ^^ TC002
-48 |
-49 |     x = dict["pd.DataFrame", "pd.DataFrame"]
-   |
-   = help: Move into type-checking block
-
-ℹ Unsafe fix
-1  1  | """Tests to determine accurate detection of typing-only imports."""
-   2  |+from typing import TYPE_CHECKING
-   3  |+
-   4  |+if TYPE_CHECKING:
-   5  |+    import pandas as pd
-2  6  | 
-3  7  | 
-4  8  | def f():
---------------------------------------------------------------------------------
-44 48 | 
-45 49 | 
-46 50 | def f():
-47    |-    import pandas as pd  # TC002
-48 51 | 
-49 52 |     x = dict["pd.DataFrame", "pd.DataFrame"]
-50 53 | 
-
-TC002.py:172:24: TC002 [*] Move third-party import `module.Member` into a type-checking block
-    |
-170 |     global Member
-171 |
-172 |     from module import Member
-    |                        ^^^^^^ TC002
-173 |
-174 |     x: Member = 1
-    |
-    = help: Move into type-checking block
-
-ℹ Unsafe fix
-1   1   | """Tests to determine accurate detection of typing-only imports."""
-    2   |+from typing import TYPE_CHECKING
-    3   |+
-    4   |+if TYPE_CHECKING:
-    5   |+    from module import Member
-2   6   | 
-3   7   | 
-4   8   | def f():
---------------------------------------------------------------------------------
-169 173 | def f():
-170 174 |     global Member
-171 175 | 
-172     |-    from module import Member
-173 176 | 
-174 177 |     x: Member = 1
-175 178 |

crates/ruff_linter/src/rules/flake8_type_checking/snapshots/ruff_linter__rules__flake8_type_checking__tests__add_future_import__TC003_TC003.py.snap

@@ -1,28 +0,0 @@
----
-source: crates/ruff_linter/src/rules/flake8_type_checking/mod.rs
----
-TC003.py:8:12: TC003 [*] Move standard library import `os` into a type-checking block
-   |
- 7 | def f():
- 8 |     import os
-   |            ^^ TC003
- 9 |
-10 |     x: os
-   |
-   = help: Move into type-checking block
-
-ℹ Unsafe fix
-2  2  | 
-3  3  | For typing-only import detection tests, see `TC002.py`.
-4  4  | """
-   5  |+from typing import TYPE_CHECKING
-   6  |+
-   7  |+if TYPE_CHECKING:
-   8  |+    import os
-5  9  | 
-6  10 | 
-7  11 | def f():
-8     |-    import os
-9  12 | 
-10 13 |     x: os
-11 14 |

crates/ruff_linter/src/rules/flake8_unused_arguments/snapshots/ruff_linter__rules__flake8_unused_arguments__tests__ARG002_ARG.py.snap

@@ -66,13 +66,3 @@ ARG.py:216:24: ARG002 Unused method argument: `x`
     |                        ^ ARG002
 217 |         print("Hello, world!")
     |
-
-ARG.py:255:20: ARG002 Unused method argument: `y`
-    |
-253 | ###
-254 | class C:
-255 |     def f(self, x, y):
-    |                    ^ ARG002
-256 |         """Docstring."""
-257 |         msg = t"{x}..."
-    |

crates/ruff_linter/src/rules/flake8_use_pathlib/mod.rs

@@ -8,7 +8,6 @@ mod tests {
     use std::path::Path;
 
     use anyhow::Result;
-    use ruff_python_ast::PythonVersion;
     use test_case::test_case;
 
     use crate::assert_diagnostics;
@@ -144,22 +143,4 @@ mod tests {
         assert_diagnostics!(snapshot, diagnostics);
         Ok(())
     }
-
-    #[test_case(Rule::InvalidPathlibWithSuffix, Path::new("PTH210_2.py"))]
-    fn pathlib_with_suffix_py314(rule_code: Rule, path: &Path) -> Result<()> {
-        let snapshot = format!(
-            "py314__{}_{}",
-            rule_code.noqa_code(),
-            path.to_string_lossy()
-        );
-        let diagnostics = test_path(
-            Path::new("flake8_use_pathlib").join(path).as_path(),
-            &settings::LinterSettings {
-                unresolved_target_version: PythonVersion::PY314.into(),
-                ..settings::LinterSettings::for_rule(rule_code)
-            },
-        )?;
-        assert_diagnostics!(snapshot, diagnostics);
-        Ok(())
-    }
 }

crates/ruff_linter/src/rules/flake8_use_pathlib/rules/invalid_pathlib_with_suffix.rs

@@ -1,21 +1,20 @@
 use crate::checkers::ast::Checker;
 use crate::{Edit, Fix, FixAvailability, Violation};
 use ruff_macros::{ViolationMetadata, derive_message_formats};
-use ruff_python_ast::{self as ast, PythonVersion, StringFlags};
+use ruff_python_ast::{self as ast, StringFlags};
 use ruff_python_semantic::SemanticModel;
-use ruff_python_semantic::analyze::typing::{self, PathlibPathChecker, TypeChecker};
+use ruff_python_semantic::analyze::typing;
 use ruff_text_size::Ranged;
 
 /// ## What it does
 /// Checks for `pathlib.Path.with_suffix()` calls where
 /// the given suffix does not have a leading dot
-/// or the given suffix is a single dot `"."` and the
-/// Python version is less than 3.14.
+/// or the given suffix is a single dot `"."`.
 ///
 /// ## Why is this bad?
 /// `Path.with_suffix()` will raise an error at runtime
 /// if the given suffix is not prefixed with a dot
-/// or, in versions prior to Python 3.14, if it is a single dot `"."`.
+/// or it is a single dot `"."`.
 ///
 /// ## Example
 ///
@@ -58,6 +57,9 @@ use ruff_text_size::Ranged;
 /// No fix is offered if the suffix `"."` is given, since the intent is unclear.
 #[derive(ViolationMetadata)]
 pub(crate) struct InvalidPathlibWithSuffix {
+    // TODO: Since "." is a correct suffix in Python 3.14,
+    // we will need to update this rule and documentation
+    // once Ruff supports Python 3.14.
     single_dot: bool,
 }
 
@@ -114,13 +116,6 @@ pub(crate) fn invalid_pathlib_with_suffix(checker: &Checker, call: &ast::ExprCal
     };
 
     let single_dot = string_value == ".";
-
-    // As of Python 3.14, a single dot is considered a valid suffix.
-    // https://docs.python.org/3.14/library/pathlib.html#pathlib.PurePath.with_suffix
-    if single_dot && checker.target_version() >= PythonVersion::PY314 {
-        return;
-    }
-
     let mut diagnostic =
         checker.report_diagnostic(InvalidPathlibWithSuffix { single_dot }, call.range);
     if !single_dot {
@@ -141,13 +136,12 @@ fn is_path_with_suffix_call(semantic: &SemanticModel, func: &ast::Expr) -> bool
         return false;
     }
 
-    match &**value {
-        ast::Expr::Name(name) => {
-            let Some(binding) = semantic.only_binding(name).map(|id| semantic.binding(id)) else {
-                return false;
-            };
-            typing::is_pathlib_path(binding, semantic)
-        }
-        expr => PathlibPathChecker::match_initializer(expr, semantic),
-    }
+    let ast::Expr::Name(name) = &**value else {
+        return false;
+    };
+    let Some(binding) = semantic.only_binding(name).map(|id| semantic.binding(id)) else {
+        return false;
+    };
+
+    typing::is_pathlib_path(binding, semantic)
 }

crates/ruff_linter/src/rules/flake8_use_pathlib/rules/mod.rs

@@ -1,6 +1,5 @@
 pub(crate) use glob_rule::*;
 pub(crate) use invalid_pathlib_with_suffix::*;
-pub(crate) use os_getcwd::*;
 pub(crate) use os_path_abspath::*;
 pub(crate) use os_path_basename::*;
 pub(crate) use os_path_dirname::*;
@@ -24,7 +23,6 @@ pub(crate) use replaceable_by_pathlib::*;
 
 mod glob_rule;
 mod invalid_pathlib_with_suffix;
-mod os_getcwd;
 mod os_path_abspath;
 mod os_path_basename;
 mod os_path_dirname;

crates/ruff_linter/src/rules/flake8_use_pathlib/rules/os_getcwd.rs

@@ -1,100 +0,0 @@
-use crate::checkers::ast::Checker;
-use crate::importer::ImportRequest;
-use crate::preview::is_fix_os_getcwd_enabled;
-use crate::{FixAvailability, Violation};
-use ruff_diagnostics::{Applicability, Edit, Fix};
-use ruff_macros::{ViolationMetadata, derive_message_formats};
-use ruff_python_ast::ExprCall;
-use ruff_text_size::Ranged;
-
-/// ## What it does
-/// Checks for uses of `os.getcwd` and `os.getcwdb`.
-///
-/// ## Why is this bad?
-/// `pathlib` offers a high-level API for path manipulation, as compared to
-/// the lower-level API offered by `os`. When possible, using `Path` object
-/// methods such as `Path.cwd()` can improve readability over the `os`
-/// module's counterparts (e.g., `os.getcwd()`).
-///
-/// ## Examples
-/// ```python
-/// import os
-///
-/// cwd = os.getcwd()
-/// ```
-///
-/// Use instead:
-/// ```python
-/// from pathlib import Path
-///
-/// cwd = Path.cwd()
-/// ```
-///
-/// ## Known issues
-/// While using `pathlib` can improve the readability and type safety of your code,
-/// it can be less performant than the lower-level alternatives that work directly with strings,
-/// especially on older versions of Python.
-///
-/// ## Fix Safety
-/// This rule's fix is marked as unsafe if the replacement would remove comments attached to the original expression.
-///
-/// ## References
-/// - [Python documentation: `Path.cwd`](https://docs.python.org/3/library/pathlib.html#pathlib.Path.cwd)
-/// - [Python documentation: `os.getcwd`](https://docs.python.org/3/library/os.html#os.getcwd)
-/// - [Python documentation: `os.getcwdb`](https://docs.python.org/3/library/os.html#os.getcwdb)
-/// - [PEP 428 – The pathlib module – object-oriented filesystem paths](https://peps.python.org/pep-0428/)
-/// - [Correspondence between `os` and `pathlib`](https://docs.python.org/3/library/pathlib.html#correspondence-to-tools-in-the-os-module)
-/// - [Why you should be using pathlib](https://treyhunner.com/2018/12/why-you-should-be-using-pathlib/)
-/// - [No really, pathlib is great](https://treyhunner.com/2019/01/no-really-pathlib-is-great/)
-#[derive(ViolationMetadata)]
-pub(crate) struct OsGetcwd;
-
-impl Violation for OsGetcwd {
-    const FIX_AVAILABILITY: FixAvailability = FixAvailability::Sometimes;
-    #[derive_message_formats]
-    fn message(&self) -> String {
-        "`os.getcwd()` should be replaced by `Path.cwd()`".to_string()
-    }
-
-    fn fix_title(&self) -> Option<String> {
-        Some("Replace with `Path.cwd()`".to_string())
-    }
-}
-
-/// PTH109
-pub(crate) fn os_getcwd(checker: &Checker, call: &ExprCall, segments: &[&str]) {
-    if !matches!(segments, ["os", "getcwd" | "getcwdb"]) {
-        return;
-    }
-
-    let range = call.range();
-    let mut diagnostic = checker.report_diagnostic(OsGetcwd, call.func.range());
-
-    if !call.arguments.is_empty() {
-        return;
-    }
-
-    if is_fix_os_getcwd_enabled(checker.settings()) {
-        diagnostic.try_set_fix(|| {
-            let (import_edit, binding) = checker.importer().get_or_import_symbol(
-                &ImportRequest::import("pathlib", "Path"),
-                call.start(),
-                checker.semantic(),
-            )?;
-
-            let applicability = if checker.comment_ranges().intersects(range) {
-                Applicability::Unsafe
-            } else {
-                Applicability::Safe
-            };
-
-            let replacement = format!("{binding}.cwd()");
-
-            Ok(Fix::applicable_edits(
-                Edit::range_replacement(replacement, range),
-                [import_edit],
-                applicability,
-            ))
-        });
-    }
-}

crates/ruff_linter/src/rules/flake8_use_pathlib/rules/replaceable_by_pathlib.rs

@@ -7,8 +7,8 @@ use crate::checkers::ast::Checker;
 use crate::rules::flake8_use_pathlib::helpers::is_keyword_only_argument_non_default;
 use crate::rules::flake8_use_pathlib::rules::Glob;
 use crate::rules::flake8_use_pathlib::violations::{
-    BuiltinOpen, Joiner, OsChmod, OsListdir, OsMakedirs, OsMkdir, OsPathJoin, OsPathSamefile,
-    OsPathSplitext, OsRename, OsReplace, OsStat, OsSymlink, PyPath,
+    BuiltinOpen, Joiner, OsChmod, OsGetcwd, OsListdir, OsMakedirs, OsMkdir, OsPathJoin,
+    OsPathSamefile, OsPathSplitext, OsRename, OsReplace, OsStat, OsSymlink, PyPath,
 };
 
 pub(crate) fn replaceable_by_pathlib(checker: &Checker, call: &ExprCall) {
@@ -83,6 +83,10 @@ pub(crate) fn replaceable_by_pathlib(checker: &Checker, call: &ExprCall) {
             }
             checker.report_diagnostic_if_enabled(OsReplace, range)
         }
+        // PTH109
+        ["os", "getcwd"] => checker.report_diagnostic_if_enabled(OsGetcwd, range),
+        ["os", "getcwdb"] => checker.report_diagnostic_if_enabled(OsGetcwd, range),
+
         // PTH116
         ["os", "stat"] => {
             // `dir_fd` is not supported by pathlib, so check if it's set to non-default values.

crates/ruff_linter/src/rules/flake8_use_pathlib/snapshots/ruff_linter__rules__flake8_use_pathlib__tests__PTH210_PTH210.py.snap

@@ -536,7 +536,7 @@ PTH210.py:54:1: PTH210 [*] Dotless suffix passed to `.with_suffix()`
    54 |+windows_path.with_suffix(u'.' "json")
 55 55 | windows_path.with_suffix(suffix="js")
 56 56 | 
-57 57 | Path().with_suffix(".")
+57 57 | 
 
 PTH210.py:55:1: PTH210 [*] Dotless suffix passed to `.with_suffix()`
    |
@@ -544,8 +544,6 @@ PTH210.py:55:1: PTH210 [*] Dotless suffix passed to `.with_suffix()`
 54 | windows_path.with_suffix(u'' "json")
 55 | windows_path.with_suffix(suffix="js")
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ PTH210
-56 |
-57 | Path().with_suffix(".")
    |
    = help: Add a leading dot
 
@@ -556,140 +554,5 @@ PTH210.py:55:1: PTH210 [*] Dotless suffix passed to `.with_suffix()`
 55    |-windows_path.with_suffix(suffix="js")
    55 |+windows_path.with_suffix(suffix=".js")
 56 56 | 
-57 57 | Path().with_suffix(".")
-58 58 | Path().with_suffix("py")
-
-PTH210.py:57:1: PTH210 Invalid suffix passed to `.with_suffix()`
-   |
-55 | windows_path.with_suffix(suffix="js")
-56 |
-57 | Path().with_suffix(".")
-   | ^^^^^^^^^^^^^^^^^^^^^^^ PTH210
-58 | Path().with_suffix("py")
-59 | PosixPath().with_suffix("py")
-   |
-   = help: Remove "." or extend to valid suffix
-
-PTH210.py:58:1: PTH210 [*] Dotless suffix passed to `.with_suffix()`
-   |
-57 | Path().with_suffix(".")
-58 | Path().with_suffix("py")
-   | ^^^^^^^^^^^^^^^^^^^^^^^^ PTH210
-59 | PosixPath().with_suffix("py")
-60 | PurePath().with_suffix("py")
-   |
-   = help: Add a leading dot
-
-ℹ Unsafe fix
-55 55 | windows_path.with_suffix(suffix="js")
-56 56 | 
-57 57 | Path().with_suffix(".")
-58    |-Path().with_suffix("py")
-   58 |+Path().with_suffix(".py")
-59 59 | PosixPath().with_suffix("py")
-60 60 | PurePath().with_suffix("py")
-61 61 | PurePosixPath().with_suffix("py")
-
-PTH210.py:59:1: PTH210 [*] Dotless suffix passed to `.with_suffix()`
-   |
-57 | Path().with_suffix(".")
-58 | Path().with_suffix("py")
-59 | PosixPath().with_suffix("py")
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ PTH210
-60 | PurePath().with_suffix("py")
-61 | PurePosixPath().with_suffix("py")
-   |
-   = help: Add a leading dot
-
-ℹ Unsafe fix
-56 56 | 
-57 57 | Path().with_suffix(".")
-58 58 | Path().with_suffix("py")
-59    |-PosixPath().with_suffix("py")
-   59 |+PosixPath().with_suffix(".py")
-60 60 | PurePath().with_suffix("py")
-61 61 | PurePosixPath().with_suffix("py")
-62 62 | PureWindowsPath().with_suffix("py")
-
-PTH210.py:60:1: PTH210 [*] Dotless suffix passed to `.with_suffix()`
-   |
-58 | Path().with_suffix("py")
-59 | PosixPath().with_suffix("py")
-60 | PurePath().with_suffix("py")
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ PTH210
-61 | PurePosixPath().with_suffix("py")
-62 | PureWindowsPath().with_suffix("py")
-   |
-   = help: Add a leading dot
-
-ℹ Unsafe fix
-57 57 | Path().with_suffix(".")
-58 58 | Path().with_suffix("py")
-59 59 | PosixPath().with_suffix("py")
-60    |-PurePath().with_suffix("py")
-   60 |+PurePath().with_suffix(".py")
-61 61 | PurePosixPath().with_suffix("py")
-62 62 | PureWindowsPath().with_suffix("py")
-63 63 | WindowsPath().with_suffix("py")
-
-PTH210.py:61:1: PTH210 [*] Dotless suffix passed to `.with_suffix()`
-   |
-59 | PosixPath().with_suffix("py")
-60 | PurePath().with_suffix("py")
-61 | PurePosixPath().with_suffix("py")
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ PTH210
-62 | PureWindowsPath().with_suffix("py")
-63 | WindowsPath().with_suffix("py")
-   |
-   = help: Add a leading dot
-
-ℹ Unsafe fix
-58 58 | Path().with_suffix("py")
-59 59 | PosixPath().with_suffix("py")
-60 60 | PurePath().with_suffix("py")
-61    |-PurePosixPath().with_suffix("py")
-   61 |+PurePosixPath().with_suffix(".py")
-62 62 | PureWindowsPath().with_suffix("py")
-63 63 | WindowsPath().with_suffix("py")
-64 64 | 
-
-PTH210.py:62:1: PTH210 [*] Dotless suffix passed to `.with_suffix()`
-   |
-60 | PurePath().with_suffix("py")
-61 | PurePosixPath().with_suffix("py")
-62 | PureWindowsPath().with_suffix("py")
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ PTH210
-63 | WindowsPath().with_suffix("py")
-   |
-   = help: Add a leading dot
-
-ℹ Unsafe fix
-59 59 | PosixPath().with_suffix("py")
-60 60 | PurePath().with_suffix("py")
-61 61 | PurePosixPath().with_suffix("py")
-62    |-PureWindowsPath().with_suffix("py")
-   62 |+PureWindowsPath().with_suffix(".py")
-63 63 | WindowsPath().with_suffix("py")
-64 64 | 
-65 65 | ### No errors
-
-PTH210.py:63:1: PTH210 [*] Dotless suffix passed to `.with_suffix()`
-   |
-61 | PurePosixPath().with_suffix("py")
-62 | PureWindowsPath().with_suffix("py")
-63 | WindowsPath().with_suffix("py")
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ PTH210
-64 |
-65 | ### No errors
-   |
-   = help: Add a leading dot
-
-ℹ Unsafe fix
-60 60 | PurePath().with_suffix("py")
-61 61 | PurePosixPath().with_suffix("py")
-62 62 | PureWindowsPath().with_suffix("py")
-63    |-WindowsPath().with_suffix("py")
-   63 |+WindowsPath().with_suffix(".py")
-64 64 | 
-65 65 | ### No errors
-66 66 | path.with_suffix()
+57 57 | 
+58 58 | ### No errors

crates/ruff_linter/src/rules/flake8_use_pathlib/snapshots/ruff_linter__rules__flake8_use_pathlib__tests__full_name.py.snap

@@ -103,7 +103,6 @@ full_name.py:16:1: PTH109 `os.getcwd()` should be replaced by `Path.cwd()`
 17 | b = os.path.exists(p)
 18 | bb = os.path.expanduser(p)
    |
-   = help: Replace with `Path.cwd()`
 
 full_name.py:17:5: PTH110 `os.path.exists()` should be replaced by `Path.exists()`
    |
@@ -293,7 +292,6 @@ full_name.py:35:1: PTH109 `os.getcwd()` should be replaced by `Path.cwd()`
 36 | os.path.join(p, *q)
 37 | os.sep.join(p, *q)
    |
-   = help: Replace with `Path.cwd()`
 
 full_name.py:36:1: PTH118 `os.path.join()` should be replaced by `Path.joinpath()`
    |
@@ -362,21 +360,3 @@ full_name.py:71:1: PTH123 `open()` should be replaced by `Path.open()`
 72 |
 73 | # https://github.com/astral-sh/ruff/issues/17693
    |
-
-full_name.py:108:1: PTH109 `os.getcwd()` should be replaced by `Path.cwd()`
-    |
-106 | os.replace("src", "dst", dst_dir_fd=2)
-107 |
-108 | os.getcwd()
-    | ^^^^^^^^^ PTH109
-109 | os.getcwdb()
-    |
-    = help: Replace with `Path.cwd()`
-
-full_name.py:109:1: PTH109 `os.getcwd()` should be replaced by `Path.cwd()`
-    |
-108 | os.getcwd()
-109 | os.getcwdb()
-    | ^^^^^^^^^^ PTH109
-    |
-    = help: Replace with `Path.cwd()`

crates/ruff_linter/src/rules/flake8_use_pathlib/snapshots/ruff_linter__rules__flake8_use_pathlib__tests__import_as.py.snap

@@ -103,7 +103,6 @@ import_as.py:16:1: PTH109 `os.getcwd()` should be replaced by `Path.cwd()`
 17 | b = foo_p.exists(p)
 18 | bb = foo_p.expanduser(p)
    |
-   = help: Replace with `Path.cwd()`
 
 import_as.py:17:5: PTH110 `os.path.exists()` should be replaced by `Path.exists()`
    |

crates/ruff_linter/src/rules/flake8_use_pathlib/snapshots/ruff_linter__rules__flake8_use_pathlib__tests__import_from.py.snap

@@ -103,7 +103,6 @@ import_from.py:18:1: PTH109 `os.getcwd()` should be replaced by `Path.cwd()`
 19 | b = exists(p)
 20 | bb = expanduser(p)
    |
-   = help: Replace with `Path.cwd()`
 
 import_from.py:19:5: PTH110 `os.path.exists()` should be replaced by `Path.exists()`
    |

crates/ruff_linter/src/rules/flake8_use_pathlib/snapshots/ruff_linter__rules__flake8_use_pathlib__tests__import_from_as.py.snap

@@ -103,7 +103,6 @@ import_from_as.py:23:1: PTH109 `os.getcwd()` should be replaced by `Path.cwd()`
 24 | b = xexists(p)
 25 | bb = xexpanduser(p)
    |
-   = help: Replace with `Path.cwd()`
 
 import_from_as.py:24:5: PTH110 `os.path.exists()` should be replaced by `Path.exists()`
    |

crates/ruff_linter/src/rules/flake8_use_pathlib/snapshots/ruff_linter__rules__flake8_use_pathlib__tests__preview_full_name.py.snap

@@ -168,7 +168,6 @@ full_name.py:16:1: PTH109 `os.getcwd()` should be replaced by `Path.cwd()`
 17 | b = os.path.exists(p)
 18 | bb = os.path.expanduser(p)
    |
-   = help: Replace with `Path.cwd()`
 
 full_name.py:17:5: PTH110 [*] `os.path.exists()` should be replaced by `Path.exists()`
    |
@@ -511,7 +510,6 @@ full_name.py:35:1: PTH109 `os.getcwd()` should be replaced by `Path.cwd()`
 36 | os.path.join(p, *q)
 37 | os.sep.join(p, *q)
    |
-   = help: Replace with `Path.cwd()`
 
 full_name.py:36:1: PTH118 `os.path.join()` should be replaced by `Path.joinpath()`
    |
@@ -580,50 +578,3 @@ full_name.py:71:1: PTH123 `open()` should be replaced by `Path.open()`
 72 |
 73 | # https://github.com/astral-sh/ruff/issues/17693
    |
-
-full_name.py:108:1: PTH109 [*] `os.getcwd()` should be replaced by `Path.cwd()`
-    |
-106 | os.replace("src", "dst", dst_dir_fd=2)
-107 |
-108 | os.getcwd()
-    | ^^^^^^^^^ PTH109
-109 | os.getcwdb()
-    |
-    = help: Replace with `Path.cwd()`
-
-ℹ Safe fix
-1   1   | import os
-2   2   | import os.path
-    3   |+import pathlib
-3   4   | 
-4   5   | p = "/foo"
-5   6   | q = "bar"
---------------------------------------------------------------------------------
-105 106 | os.replace("src", "dst", src_dir_fd=1)
-106 107 | os.replace("src", "dst", dst_dir_fd=2)
-107 108 | 
-108     |-os.getcwd()
-    109 |+pathlib.Path.cwd()
-109 110 | os.getcwdb()
-
-full_name.py:109:1: PTH109 [*] `os.getcwd()` should be replaced by `Path.cwd()`
-    |
-108 | os.getcwd()
-109 | os.getcwdb()
-    | ^^^^^^^^^^ PTH109
-    |
-    = help: Replace with `Path.cwd()`
-
-ℹ Safe fix
-1   1   | import os
-2   2   | import os.path
-    3   |+import pathlib
-3   4   | 
-4   5   | p = "/foo"
-5   6   | q = "bar"
---------------------------------------------------------------------------------
-106 107 | os.replace("src", "dst", dst_dir_fd=2)
-107 108 | 
-108 109 | os.getcwd()
-109     |-os.getcwdb()
-    110 |+pathlib.Path.cwd()