[ty] Rename extra-paths to non-environment-paths, and --extra-search-path to --non-environment-search-path

.config/nextest.toml

@@ -1,12 +1,3 @@
-# Define serial test group for running tests sequentially.
-[test-groups]
-serial = { max-threads = 1 }
-
-# Run ty file watching tests sequentially to avoid race conditions.
-[[profile.default.overrides]]
-filter = 'binary(file_watching)'
-test-group = 'serial'
-
 [profile.ci]
 # Print out output for failing tests as soon as they fail, and also at the end
 # of the run (for easy scrollability).

.editorconfig

@@ -10,7 +10,7 @@ indent_style = space
 insert_final_newline = true
 indent_size = 2
 
-[*.{rs,py,pyi,toml}]
+[*.{rs,py,pyi}]
 indent_size = 4
 
 [*.snap]
@@ -18,3 +18,6 @@ trim_trailing_whitespace = false
 
 [*.md]
 max_line_length = 100
+
+[*.toml]
+indent_size = 4

.github/workflows/ci.yaml

@@ -12,10 +12,6 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number || github.sha }}
   cancel-in-progress: true
 
-defaults:
-  run:
-    shell: bash
-
 env:
   CARGO_INCREMENTAL: 0
   CARGO_NET_RETRY: 10
@@ -23,7 +19,6 @@ env:
   RUSTUP_MAX_RETRIES: 10
   PACKAGE_NAME: ruff
   PYTHON_VERSION: "3.13"
-  NEXTEST_PROFILE: ci
 
 jobs:
   determine_changes:
@@ -147,7 +142,7 @@ jobs:
         env:
           MERGE_BASE: ${{ steps.merge_base.outputs.sha }}
         run: |
-          if git diff --quiet "${MERGE_BASE}...HEAD" -- 'python/py-fuzzer/**' \
+          if git diff --quiet "${MERGE_BASE}...HEAD" -- 'python/py_fuzzer/**' \
           ; then
               echo "changed=false" >> "$GITHUB_OUTPUT"
           else
@@ -242,7 +237,7 @@ jobs:
 
   cargo-test-linux:
     name: "cargo test (linux)"
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-22.04-16' || 'ubuntu-latest' }}
+    runs-on: depot-ubuntu-22.04-16
     needs: determine_changes
     if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
     timeout-minutes: 20
@@ -276,6 +271,9 @@ jobs:
         # This step is just to get nice GitHub annotations on the PR diff in the files-changed tab.
         run: cargo test -p ty_python_semantic --test mdtest || true
       - name: "Run tests"
+        shell: bash
+        env:
+          NEXTEST_PROFILE: "ci"
         run: cargo insta test --all-features --unreferenced reject --test-runner nextest
 
       # Check for broken links in the documentation.
@@ -301,13 +299,9 @@ jobs:
 
   cargo-test-linux-release:
     name: "cargo test (linux, release)"
-    # release builds timeout on GitHub runners, so this job is just skipped on forks in the `if` check
     runs-on: depot-ubuntu-22.04-16
     needs: determine_changes
-    if: |
-      github.repository == 'astral-sh/ruff' &&
-      !contains(github.event.pull_request.labels.*.name, 'no-test') &&
-      (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main')
+    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
     timeout-minutes: 20
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
@@ -331,11 +325,14 @@ jobs:
         with:
           enable-cache: "true"
       - name: "Run tests"
+        shell: bash
+        env:
+          NEXTEST_PROFILE: "ci"
         run: cargo insta test --release --all-features --unreferenced reject --test-runner nextest
 
   cargo-test-windows:
     name: "cargo test (windows)"
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-windows-2022-16' || 'windows-latest' }}
+    runs-on: depot-windows-2022-16
     needs: determine_changes
     if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
     timeout-minutes: 20
@@ -355,41 +352,15 @@ jobs:
         with:
           enable-cache: "true"
       - name: "Run tests"
+        shell: bash
         env:
+          NEXTEST_PROFILE: "ci"
           # Workaround for <https://github.com/nextest-rs/nextest/issues/1493>.
           RUSTUP_WINDOWS_PATH_ADD_BIN: 1
         run: |
           cargo nextest run --all-features --profile ci
           cargo test --all-features --doc
 
-  cargo-test-macos:
-    name: "cargo test (macos)"
-    runs-on: macos-latest
-    needs: determine_changes
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
-    timeout-minutes: 20
-    steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-        with:
-          persist-credentials: false
-      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-      - name: "Install Rust toolchain"
-        run: rustup show
-      - name: "Install mold"
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
-      - name: "Install cargo nextest"
-        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
-        with:
-          tool: cargo-nextest
-      - name: "Install uv"
-        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
-        with:
-          enable-cache: "true"
-      - name: "Run tests"
-        run: |
-          cargo nextest run --all-features --profile ci
-          cargo test --all-features --doc
-
   cargo-test-wasm:
     name: "cargo test (wasm)"
     runs-on: ubuntu-latest
@@ -420,9 +391,26 @@ jobs:
           cd crates/ty_wasm
           wasm-pack test --node
 
+  cargo-build-release:
+    name: "cargo build (release)"
+    runs-on: macos-latest
+    if: ${{ github.ref == 'refs/heads/main' }}
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
+      - name: "Install Rust toolchain"
+        run: rustup show
+      - name: "Install mold"
+        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
+      - name: "Build"
+        run: cargo build --release --locked
+
   cargo-build-msrv:
     name: "cargo build (msrv)"
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-latest-8' || 'ubuntu-latest' }}
+    runs-on: depot-ubuntu-latest-8
     needs: determine_changes
     if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
     timeout-minutes: 20
@@ -443,6 +431,7 @@ jobs:
       - name: "Install mold"
         uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
       - name: "Build tests"
+        shell: bash
         env:
           MSRV: ${{ steps.msrv.outputs.value }}
         run: cargo "+${MSRV}" test --no-run --all-features
@@ -463,7 +452,7 @@ jobs:
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install cargo-binstall"
-        uses: cargo-bins/cargo-binstall@a66119fbb1c952daba62640c2609111fe0803621 # v1.15.7
+        uses: cargo-bins/cargo-binstall@38e8f5e4c386b611d51e8aa997b9a06a3c8eb67a # v1.15.6
       - name: "Install cargo-fuzz"
         # Download the latest version from quick install and not the github releases because github releases only has MUSL targets.
         run: cargo binstall cargo-fuzz --force  --disable-strategies crate-meta-data --no-confirm
@@ -535,7 +524,7 @@ jobs:
 
   ecosystem:
     name: "ecosystem"
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-latest-8' || 'ubuntu-latest' }}
+    runs-on: depot-ubuntu-latest-8
     needs:
       - cargo-test-linux
       - determine_changes
@@ -660,13 +649,13 @@ jobs:
 
   fuzz-ty:
     name: "Fuzz for new ty panics"
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-22.04-16' || 'ubuntu-latest' }}
+    runs-on: depot-ubuntu-22.04-16
     needs:
       - cargo-test-linux
       - determine_changes
     # Only runs on pull requests, since that is the only we way we can find the base version for comparison.
     if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && github.event_name == 'pull_request' && (needs.determine_changes.outputs.ty == 'true' || needs.determine_changes.outputs.py-fuzzer == 'true') }}
-    timeout-minutes: 5
+    timeout-minutes: 20
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
@@ -714,28 +703,10 @@ jobs:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
-      - uses: cargo-bins/cargo-binstall@a66119fbb1c952daba62640c2609111fe0803621 # v1.15.7
+      - uses: cargo-bins/cargo-binstall@38e8f5e4c386b611d51e8aa997b9a06a3c8eb67a # v1.15.6
       - run: cargo binstall --no-confirm cargo-shear
       - run: cargo shear
 
-  ty-completion-evaluation:
-    name: "ty completion evaluation"
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-22.04-16' || 'ubuntu-latest' }}
-    needs: determine_changes
-    if: ${{ needs.determine_changes.outputs.ty == 'true' || github.ref == 'refs/heads/main' }}
-    steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-        with:
-          persist-credentials: false
-      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
-      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-      - name: "Install Rust toolchain"
-        run: rustup show
-      - name: "Run ty completion evaluation"
-        run: cargo run --release --package ty_completion_eval -- all --threshold 0.4 --tasks /tmp/completion-evaluation-tasks.csv
-      - name: "Ensure there are no changes"
-        run: diff ./crates/ty_completion_eval/completion-evaluation-tasks.csv /tmp/completion-evaluation-tasks.csv
-
   python-package:
     name: "python package"
     runs-on: ubuntu-latest
@@ -766,7 +737,7 @@ jobs:
 
   pre-commit:
     name: "pre-commit"
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-22.04-16' || 'ubuntu-latest' }}
+    runs-on: depot-ubuntu-22.04-16
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
@@ -778,7 +749,7 @@ jobs:
         with:
           node-version: 22
       - name: "Cache pre-commit"
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
         with:
           path: ~/.cache/pre-commit
           key: pre-commit-${{ hashFiles('.pre-commit-config.yaml') }}
@@ -940,12 +911,8 @@ jobs:
     runs-on: ubuntu-24.04
     needs: determine_changes
     if: |
-      github.repository == 'astral-sh/ruff' &&
-      (
-        github.ref == 'refs/heads/main' ||
-        needs.determine_changes.outputs.formatter == 'true' ||
-        needs.determine_changes.outputs.linter == 'true'
-      )
+      github.ref == 'refs/heads/main' || 
+      (needs.determine_changes.outputs.formatter == 'true' || needs.determine_changes.outputs.linter == 'true')
     timeout-minutes: 20
     steps:
       - name: "Checkout Branch"
@@ -968,7 +935,7 @@ jobs:
         run: cargo codspeed build --features "codspeed,instrumented" --no-default-features -p ruff_benchmark --bench formatter --bench lexer --bench linter --bench parser
 
       - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@6b43a0cd438f6ca5ad26f9ed03ed159ed2df7da9 # v4.1.1
+        uses: CodSpeedHQ/action@3959e9e296ef25296e93e32afcc97196f966e57f # v4.1.0
         with:
           mode: instrumentation
           run: cargo codspeed run
@@ -979,11 +946,8 @@ jobs:
     runs-on: ubuntu-24.04
     needs: determine_changes
     if: |
-      github.repository == 'astral-sh/ruff' &&
-      (
-        github.ref == 'refs/heads/main' ||
-        needs.determine_changes.outputs.ty == 'true'
-      )
+      github.ref == 'refs/heads/main' || 
+      needs.determine_changes.outputs.ty == 'true'
     timeout-minutes: 20
     steps:
       - name: "Checkout Branch"
@@ -1006,23 +970,19 @@ jobs:
         run: cargo codspeed build --features "codspeed,instrumented" --no-default-features -p ruff_benchmark --bench ty
 
       - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@6b43a0cd438f6ca5ad26f9ed03ed159ed2df7da9 # v4.1.1
+        uses: CodSpeedHQ/action@3959e9e296ef25296e93e32afcc97196f966e57f # v4.1.0
         with:
           mode: instrumentation
           run: cargo codspeed run
           token: ${{ secrets.CODSPEED_TOKEN }}
 
   benchmarks-walltime:
-    name: "benchmarks walltime (${{ matrix.benchmarks }})"
     runs-on: codspeed-macro
     needs: determine_changes
     if: ${{ github.repository == 'astral-sh/ruff' && !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.ty == 'true' || github.ref == 'refs/heads/main') }}
     timeout-minutes: 20
-    strategy:
-      matrix:
-        benchmarks:
-          - "medium|multithreaded"
-          - "small|large"
+    env:
+      TY_LOG: ruff_benchmark=debug
     steps:
       - name: "Checkout Branch"
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
@@ -1044,7 +1004,7 @@ jobs:
         run: cargo codspeed build --features "codspeed,walltime" --no-default-features -p ruff_benchmark
 
       - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@6b43a0cd438f6ca5ad26f9ed03ed159ed2df7da9 # v4.1.1
+        uses: CodSpeedHQ/action@3959e9e296ef25296e93e32afcc97196f966e57f # v4.1.0
         env:
           # enabling walltime flamegraphs adds ~6 minutes to the CI time, and they don't
           # appear to provide much useful insight for our walltime benchmarks right now
@@ -1052,5 +1012,5 @@ jobs:
           CODSPEED_PERF_ENABLED: false
         with:
           mode: walltime
-          run: cargo codspeed run --bench ty_walltime "${{ matrix.benchmarks }}"
+          run: cargo codspeed run
           token: ${{ secrets.CODSPEED_TOKEN }}

.github/workflows/mypy_primer.yaml

@@ -19,10 +19,6 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number || github.sha }}
   cancel-in-progress: true
 
-defaults:
-  run:
-    shell: bash
-
 env:
   CARGO_INCREMENTAL: 0
   CARGO_NET_RETRY: 10
@@ -33,7 +29,7 @@ env:
 jobs:
   mypy_primer:
     name: Run mypy_primer
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-22.04-32' || 'ubuntu-latest' }}
+    runs-on: depot-ubuntu-22.04-32
     timeout-minutes: 20
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
@@ -53,6 +49,7 @@ jobs:
         run: rustup show
 
       - name: Run mypy_primer
+        shell: bash
         env:
           PRIMER_SELECTOR: crates/ty_python_semantic/resources/primer/good.txt
           DIFF_FILE: mypy_primer.diff
@@ -75,7 +72,7 @@ jobs:
 
   memory_usage:
     name: Run memory statistics
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-22.04-32' || 'ubuntu-latest' }}
+    runs-on: depot-ubuntu-22.04-32
     timeout-minutes: 20
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
@@ -95,6 +92,7 @@ jobs:
         run: rustup show
 
       - name: Run mypy_primer
+        shell: bash
         env:
           TY_MAX_PARALLELISM: 1 # for deterministic memory numbers
           TY_MEMORY_REPORT: mypy_primer

.github/workflows/sync_typeshed.yaml

@@ -16,10 +16,8 @@ name: Sync typeshed
 # 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. Attempts to update any snapshots that might have changed
-#       (this sub-step is allowed to fail)
-#    d. Commits the changes and pushes them to the same upstream branch
-#    e. Creates a PR against the `main` branch using the branch all three workers have pushed to
+#    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:
@@ -28,18 +26,8 @@ on:
     # Run on the 1st and the 15th of every month:
     - cron: "0 0 1,15 * *"
 
-defaults:
-  run:
-    shell: bash
-
 env:
-  # Don't set this flag globally for the workflow: it does strange things
-  # to the snapshots in the `cargo insta test --accept` step in the MacOS job.
-  #
-  # FORCE_COLOR: 1
-
-  CARGO_TERM_COLOR: always
-  NEXTEST_PROFILE: "ci"
+  FORCE_COLOR: 1
   GH_TOKEN: ${{ github.token }}
 
   # The name of the upstream branch that the first worker creates,
@@ -98,8 +86,6 @@ jobs:
           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() }}
-        env:
-          FORCE_COLOR: 1
         run: |
           cd ruff
           ./scripts/codemod_docstrings.sh
@@ -138,8 +124,7 @@ jobs:
           git config --global user.email '<>'
       - name: Sync Windows docstrings
         id: docstrings
-        env:
-          FORCE_COLOR: 1
+        shell: bash
         run: ./scripts/codemod_docstrings.sh
       - name: Commit the changes
         if: ${{ steps.docstrings.outcome == 'success' }}
@@ -176,63 +161,26 @@ jobs:
           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() }}
-        env:
-          FORCE_COLOR: 1
         run: |
-          ./scripts/codemod_docstrings.sh
           git commit -am "Sync macOS docstrings" --allow-empty
-      - name: Format the changes
-        if: ${{ success() }}
-        env:
-          FORCE_COLOR: 1
-        run: |
+
           # Here we just reformat the codemodded stubs so that they are
           # consistent with the other typeshed stubs around them.
           # Typeshed formats code using black in their CI, so we just invoke
           # black on the stubs the same way that typeshed does.
           uvx black "${VENDORED_TYPESHED}/stdlib" --config "${VENDORED_TYPESHED}/pyproject.toml" || true
           git commit -am "Format codemodded docstrings" --allow-empty
-      - name: Remove typeshed pyproject.toml file
-        if: ${{ success() }}
-        run: |
+
           rm "${VENDORED_TYPESHED}/pyproject.toml"
           git commit -am "Remove pyproject.toml file"
-      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-      - name: "Install Rust toolchain"
-        if: ${{ success() }}
-        run: rustup show
-      - name: "Install mold"
-        if: ${{ success() }}
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
-      - name: "Install cargo nextest"
-        if: ${{ success() }}
-        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
-        with:
-          tool: cargo-nextest
-      - name: "Install cargo insta"
-        if: ${{ success() }}
-        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
-        with:
-          tool: cargo-insta
-      - name: Update snapshots
-        if: ${{ success() }}
-        run: |
-          # The `cargo insta` docs indicate that `--unreferenced=delete` might be a good option,
-          # but from local testing it appears to just revert all changes made by `cargo insta test --accept`.
-          #
-          # If there were only snapshot-related failures, `cargo insta test --accept` will have exit code 0,
-          # but if there were also other mdtest failures (for example), it will return a nonzero exit code.
-          # We don't care about other tests failing here, we just want snapshots updated where possible,
-          # so we use `|| true` here to ignore the exit code.
-          cargo insta test --accept --color=always --all-features --test-runner=nextest || true
-      - name: Commit snapshot changes
-        if: ${{ success() }}
-        run: git commit -am "Update snapshots" || echo "No snapshot changes to commit"
-      - name: Push changes upstream and create a PR
-        if: ${{ success() }}
-        run: |
+
           git push
+      - name: Create a PR
+        if: ${{ success() }}
+        run: |
           gh pr list --repo "${GITHUB_REPOSITORY}" --head "${UPSTREAM_BRANCH}" --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"
 

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

@@ -22,7 +22,7 @@ env:
 jobs:
   ty-ecosystem-analyzer:
     name: Compute diagnostic diff
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-22.04-32' || 'ubuntu-latest' }}
+    runs-on: depot-ubuntu-22.04-32
     timeout-minutes: 20
     if: contains(github.event.label.name, 'ecosystem-analyzer')
     steps:
@@ -64,12 +64,12 @@ jobs:
 
           cd ..
 
-          uv tool install "git+https://github.com/astral-sh/ecosystem-analyzer@908758da02a73ef3f3308e1dbb2248510029bbe4"
+          uv tool install "git+https://github.com/astral-sh/ecosystem-analyzer@279f8a15b0e7f77213bf9096dbc2335a19ef89c5"
 
           ecosystem-analyzer \
             --repository ruff \
             diff \
-            --profile=profiling \
+            --profile=release \
             --projects-old ruff/projects_old.txt \
             --projects-new ruff/projects_new.txt \
             --old old_commit \

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

@@ -19,7 +19,7 @@ env:
 jobs:
   ty-ecosystem-report:
     name: Create ecosystem report
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-22.04-32' || 'ubuntu-latest' }}
+    runs-on: depot-ubuntu-22.04-32
     timeout-minutes: 20
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
@@ -49,13 +49,13 @@ jobs:
 
           cd ..
 
-          uv tool install "git+https://github.com/astral-sh/ecosystem-analyzer@908758da02a73ef3f3308e1dbb2248510029bbe4"
+          uv tool install "git+https://github.com/astral-sh/ecosystem-analyzer@279f8a15b0e7f77213bf9096dbc2335a19ef89c5"
 
           ecosystem-analyzer \
             --verbose \
             --repository ruff \
             analyze \
-            --profile=profiling \
+            --profile=release \
             --projects ruff/crates/ty_python_semantic/resources/primer/good.txt \
             --output ecosystem-diagnostics.json
 

.github/workflows/typing_conformance.yaml

@@ -29,7 +29,7 @@ env:
 jobs:
   typing_conformance:
     name: Compute diagnostic diff
-    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-22.04-32' || 'ubuntu-latest' }}
+    runs-on: depot-ubuntu-22.04-32
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0

.pre-commit-config.yaml

@@ -16,8 +16,7 @@ exclude: |
     crates/ruff_python_formatter/resources/.*|
     crates/ruff_python_formatter/tests/snapshots/.*|
     crates/ruff_python_resolver/resources/.*|
-    crates/ruff_python_resolver/tests/snapshots/.*|
-    crates/ty_completion_eval/truth/.*
+    crates/ruff_python_resolver/tests/snapshots/.*
   )$
 
 repos:

BREAKING_CHANGES.md

@@ -1,21 +1,5 @@
 # Breaking Changes
 
-## 0.14.0
-
-- **Default to Python 3.10**
-
-    Ruff now defaults to Python 3.10 instead of 3.9 if no explicit Python
-    version is configured using [`ruff.target-version`](https://docs.astral.sh/ruff/settings/#target-version)
-    or [`project.requires-python`](https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#python-requires)
-    ([#20725](https://github.com/astral-sh/ruff/pull/20725))
-
-- **Default to Python 3.14 for syntax errors**
-
-    Ruff will default to the _latest_ supported Python version (3.14) when
-    checking for syntax errors without a Python version configured. The default
-    in all other cases, like applying lint rules, remains at the minimum
-    supported Python version (3.10).
-
 ## 0.13.0
 
 - **Several rules can now add `from __future__ import annotations` automatically**

CHANGELOG.md

@@ -1,104 +1,266 @@
 # Changelog
 
-## 0.14.1
+## 0.13.3
 
-Released on 2025-10-16.
+Released on 2025-10-02.
 
 ### Preview features
 
-- [formatter] Remove parentheses around multiple exception types on Python 3.14+ ([#20768](https://github.com/astral-sh/ruff/pull/20768))
-- \[`flake8-bugbear`\] Omit annotation in preview fix for `B006` ([#20877](https://github.com/astral-sh/ruff/pull/20877))
-- \[`flake8-logging-format`\] Avoid dropping implicitly concatenated pieces in the `G004` fix ([#20793](https://github.com/astral-sh/ruff/pull/20793))
-- \[`pydoclint`\] Implement `docstring-extraneous-parameter` (`DOC102`) ([#20376](https://github.com/astral-sh/ruff/pull/20376))
-- \[`pyupgrade`\] Extend `UP019` to detect `typing_extensions.Text` (`UP019`) ([#20825](https://github.com/astral-sh/ruff/pull/20825))
-- \[`pyupgrade`\] Fix false negative for `TypeVar` with default argument in `non-pep695-generic-class` (`UP046`) ([#20660](https://github.com/astral-sh/ruff/pull/20660))
+- Display diffs for `ruff format --check` and add support for different output formats ([#20443](https://github.com/astral-sh/ruff/pull/20443))
+- \[`pyflakes`\] Handle some common submodule import situations for `unused-import` (`F401`) ([#20200](https://github.com/astral-sh/ruff/pull/20200))
+- \[`ruff`\] Do not flag `%r` + `repr()` combinations (`RUF065`) ([#20600](https://github.com/astral-sh/ruff/pull/20600))
 
 ### Bug fixes
 
-- Fix false negatives in `Truthiness::from_expr` for lambdas, generators, and f-strings ([#20704](https://github.com/astral-sh/ruff/pull/20704))
-- Fix syntax error false positives for escapes and quotes in f-strings ([#20867](https://github.com/astral-sh/ruff/pull/20867))
-- Fix syntax error false positives on parenthesized context managers ([#20846](https://github.com/astral-sh/ruff/pull/20846))
-- \[`fastapi`\] Fix false positives for path parameters that FastAPI doesn't recognize (`FAST003`) ([#20687](https://github.com/astral-sh/ruff/pull/20687))
-- \[`flake8-pyi`\] Fix operator precedence by adding parentheses when needed (`PYI061`) ([#20508](https://github.com/astral-sh/ruff/pull/20508))
-- \[`ruff`\] Suppress diagnostic for f-string interpolations with debug text (`RUF010`) ([#20525](https://github.com/astral-sh/ruff/pull/20525))
+- \[`cli`\] Add conflict between `--add-noqa` and `--diff` options ([#20642](https://github.com/astral-sh/ruff/pull/20642))
+- \[`pylint`\] Exempt required imports from `PLR0402` ([#20381](https://github.com/astral-sh/ruff/pull/20381))
+- \[`pylint`\] Fix missing `max-nested-blocks` in settings display ([#20574](https://github.com/astral-sh/ruff/pull/20574))
+- \[`pyupgrade`\] Prevent infinite loop with `I002` and `UP026` ([#20634](https://github.com/astral-sh/ruff/pull/20634))
 
 ### Rule changes
 
-- \[`airflow`\] Add warning to `airflow.datasets.DatasetEvent` usage (`AIR301`) ([#20551](https://github.com/astral-sh/ruff/pull/20551))
-- \[`flake8-bugbear`\] Mark `B905` and `B912` fixes as unsafe ([#20695](https://github.com/astral-sh/ruff/pull/20695))
-- Use `DiagnosticTag` for more rules - changes display in editors ([#20758](https://github.com/astral-sh/ruff/pull/20758),[#20734](https://github.com/astral-sh/ruff/pull/20734))
+- \[`flake8-simplify`\] Improve help message clarity (`SIM105`) ([#20548](https://github.com/astral-sh/ruff/pull/20548))
 
 ### Documentation
 
-- Update Python compatibility from 3.13 to 3.14 in README.md ([#20852](https://github.com/astral-sh/ruff/pull/20852))
-- Update `lint.flake8-type-checking.quoted-annotations` docs ([#20765](https://github.com/astral-sh/ruff/pull/20765))
-- Update setup instructions for Zed 0.208.0+ ([#20902](https://github.com/astral-sh/ruff/pull/20902))
-- \[`flake8-datetimez`\] Clarify docs for several rules ([#20778](https://github.com/astral-sh/ruff/pull/20778))
-- Fix typo in `RUF015` description ([#20873](https://github.com/astral-sh/ruff/pull/20873))
+- Add the *The Basics* title back to CONTRIBUTING.md ([#20624](https://github.com/astral-sh/ruff/pull/20624))
+- Fixed documentation for try_consider_else ([#20587](https://github.com/astral-sh/ruff/pull/20587))
+- \[`isort`\] Clarify dependency between `order-by-type` and `case-sensitive` settings ([#20559](https://github.com/astral-sh/ruff/pull/20559))
+- \[`pylint`\] Clarify fix safety to include left-hand hashability (`PLR6201`) ([#20518](https://github.com/astral-sh/ruff/pull/20518))
 
 ### Other changes
 
-- Reduce binary size ([#20863](https://github.com/astral-sh/ruff/pull/20863))
-- Improved error recovery for unclosed strings (including f- and t-strings) ([#20848](https://github.com/astral-sh/ruff/pull/20848))
+- \[`playground`\] Fix quick fixes for empty ranges in playground ([#20599](https://github.com/astral-sh/ruff/pull/20599))
 
 ### Contributors
 
-- [@ntBre](https://github.com/ntBre)
-- [@Paillat-dev](https://github.com/Paillat-dev)
-- [@terror](https://github.com/terror)
-- [@pieterh-oai](https://github.com/pieterh-oai)
-- [@MichaReiser](https://github.com/MichaReiser)
 - [@TaKO8Ki](https://github.com/TaKO8Ki)
-- [@ageorgou](https://github.com/ageorgou)
-- [@danparizher](https://github.com/danparizher)
-- [@mgaitan](https://github.com/mgaitan)
-- [@augustelalande](https://github.com/augustelalande)
+- [@ntBre](https://github.com/ntBre)
 - [@dylwil3](https://github.com/dylwil3)
-- [@Lee-W](https://github.com/Lee-W)
-- [@injust](https://github.com/injust)
-- [@CarrotManMatt](https://github.com/CarrotManMatt)
+- [@MichaReiser](https://github.com/MichaReiser)
+- [@danparizher](https://github.com/danparizher)
+- [@LilMonk](https://github.com/LilMonk)
+- [@mgiovani](https://github.com/mgiovani)
+- [@IDrokin117](https://github.com/IDrokin117)
 
-## 0.14.0
+## 0.13.2
 
-Released on 2025-10-07.
-
-### Breaking changes
-
-- Update default and latest Python versions for 3.14 ([#20725](https://github.com/astral-sh/ruff/pull/20725))
+Released on 2025-09-25.
 
 ### Preview features
 
-- \[`flake8-bugbear`\] Include certain guaranteed-mutable expressions: tuples, generators, and assignment expressions (`B006`) ([#20024](https://github.com/astral-sh/ruff/pull/20024))
-- \[`refurb`\] Add fixes for `FURB101` and `FURB103` ([#20520](https://github.com/astral-sh/ruff/pull/20520))
-- \[`ruff`\] Extend `FA102` with listed PEP 585-compatible APIs ([#20659](https://github.com/astral-sh/ruff/pull/20659))
+- \[`flake8-async`\] Implement `blocking-path-method` (`ASYNC240`) ([#20264](https://github.com/astral-sh/ruff/pull/20264))
+- \[`flake8-bugbear`\] Implement `map-without-explicit-strict` (`B912`) ([#20429](https://github.com/astral-sh/ruff/pull/20429))
+- \[`flake8-bultins`\] Detect class-scope builtin shadowing in decorators, default args, and attribute initializers (`A003`) ([#20178](https://github.com/astral-sh/ruff/pull/20178))
+- \[`ruff`\] Implement `logging-eager-conversion` (`RUF065`) ([#19942](https://github.com/astral-sh/ruff/pull/19942))
+- Include `.pyw` files by default when linting and formatting ([#20458](https://github.com/astral-sh/ruff/pull/20458))
 
 ### Bug fixes
 
-- \[`flake8-annotations`\] Fix return type annotations to handle shadowed builtin symbols (`ANN201`, `ANN202`, `ANN204`, `ANN205`, `ANN206`) ([#20612](https://github.com/astral-sh/ruff/pull/20612))
-- \[`flynt`\] Fix f-string quoting for mixed quote joiners (`FLY002`) ([#20662](https://github.com/astral-sh/ruff/pull/20662))
-- \[`isort`\] Fix inserting required imports before future imports (`I002`) ([#20676](https://github.com/astral-sh/ruff/pull/20676))
-- \[`ruff`\] Handle argfile expansion errors gracefully ([#20691](https://github.com/astral-sh/ruff/pull/20691))
-- \[`ruff`\] Skip `RUF051` if `else`/`elif` block is present ([#20705](https://github.com/astral-sh/ruff/pull/20705))
-- \[`ruff`\] Improve handling of intermixed comments inside from-imports ([#20561](https://github.com/astral-sh/ruff/pull/20561))
+- Deduplicate input paths ([#20105](https://github.com/astral-sh/ruff/pull/20105))
+- \[`flake8-comprehensions`\] Preserve trailing commas for single-element lists (`C409`) ([#19571](https://github.com/astral-sh/ruff/pull/19571))
+- \[`flake8-pyi`\] Avoid syntax error from conflict with `PIE790` (`PYI021`) ([#20010](https://github.com/astral-sh/ruff/pull/20010))
+- \[`flake8-simplify`\] Correct fix for positive `maxsplit` without separator (`SIM905`) ([#20056](https://github.com/astral-sh/ruff/pull/20056))
+- \[`pyupgrade`\] Fix `UP008` not to apply when `__class__` is a local variable ([#20497](https://github.com/astral-sh/ruff/pull/20497))
+- \[`ruff`\] Fix `B004` to skip invalid `hasattr`/`getattr` calls ([#20486](https://github.com/astral-sh/ruff/pull/20486))
+- \[`ruff`\] Replace `-nan` with `nan` when using the value to construct a `Decimal` (`FURB164` ) ([#20391](https://github.com/astral-sh/ruff/pull/20391))
 
 ### Documentation
 
-- \[`flake8-comprehensions`\] Clarify fix safety documentation (`C413`) ([#20640](https://github.com/astral-sh/ruff/pull/20640))
+- Add 'Finding ways to help' to CONTRIBUTING.md ([#20567](https://github.com/astral-sh/ruff/pull/20567))
+- Update import path to `ruff-wasm-web` ([#20539](https://github.com/astral-sh/ruff/pull/20539))
+- \[`flake8-bandit`\] Clarify the supported hashing functions (`S324`) ([#20534](https://github.com/astral-sh/ruff/pull/20534))
+
+### Other changes
+
+- \[`playground`\] Allow hover quick fixes to appear for overlapping diagnostics ([#20527](https://github.com/astral-sh/ruff/pull/20527))
+- \[`playground`\] Fix non‑BMP code point handling in quick fixes and markers ([#20526](https://github.com/astral-sh/ruff/pull/20526))
 
 ### Contributors
 
+- [@BurntSushi](https://github.com/BurntSushi)
+- [@mtshiba](https://github.com/mtshiba)
+- [@second-ed](https://github.com/second-ed)
 - [@danparizher](https://github.com/danparizher)
-- [@terror](https://github.com/terror)
+- [@ShikChen](https://github.com/ShikChen)
+- [@PieterCK](https://github.com/PieterCK)
+- [@GDYendell](https://github.com/GDYendell)
+- [@RazerM](https://github.com/RazerM)
 - [@TaKO8Ki](https://github.com/TaKO8Ki)
-- [@ntBre](https://github.com/ntBre)
-- [@njhearp](https://github.com/njhearp)
 - [@amyreese](https://github.com/amyreese)
-- [@IDrokin117](https://github.com/IDrokin117)
+- [@ntbre](https://github.com/ntBre)
+- [@MichaReiser](https://github.com/MichaReiser)
+
+## 0.13.1
+
+Released on 2025-09-18.
+
+### Preview features
+
+- \[`flake8-simplify`\] Detect unnecessary `None` default for additional key expression types (`SIM910`) ([#20343](https://github.com/astral-sh/ruff/pull/20343))
+- \[`flake8-use-pathlib`\] Add fix for `PTH123` ([#20169](https://github.com/astral-sh/ruff/pull/20169))
+- \[`flake8-use-pathlib`\] Fix `PTH101`, `PTH104`, `PTH105`, `PTH121` fixes ([#20143](https://github.com/astral-sh/ruff/pull/20143))
+- \[`flake8-use-pathlib`\] Make `PTH111` fix unsafe because it can change behavior ([#20215](https://github.com/astral-sh/ruff/pull/20215))
+- \[`pycodestyle`\] Fix `E301` to only trigger for functions immediately within a class ([#19768](https://github.com/astral-sh/ruff/pull/19768))
+- \[`refurb`\] Mark `single-item-membership-test` fix as always unsafe (`FURB171`) ([#20279](https://github.com/astral-sh/ruff/pull/20279))
+
+### Bug fixes
+
+- Handle t-strings for token-based rules and suppression comments ([#20357](https://github.com/astral-sh/ruff/pull/20357))
+- \[`flake8-bandit`\] Fix truthiness: dict-only `**` displays not truthy for `shell` (`S602`, `S604`, `S609`) ([#20177](https://github.com/astral-sh/ruff/pull/20177))
+- \[`flake8-simplify`\] Fix diagnostic to show correct method name for `str.rsplit` calls (`SIM905`) ([#20459](https://github.com/astral-sh/ruff/pull/20459))
+- \[`flynt`\] Use triple quotes for joined raw strings with newlines (`FLY002`) ([#20197](https://github.com/astral-sh/ruff/pull/20197))
+- \[`pyupgrade`\] Fix false positive when class name is shadowed by local variable (`UP008`) ([#20427](https://github.com/astral-sh/ruff/pull/20427))
+- \[`pyupgrade`\] Prevent infinite loop with `I002` and `UP026` ([#20327](https://github.com/astral-sh/ruff/pull/20327))
+- \[`ruff`\] Recognize t-strings, generators, and lambdas in `invalid-index-type` (`RUF016`) ([#20213](https://github.com/astral-sh/ruff/pull/20213))
+
+### Rule changes
+
+- \[`RUF102`\] Respect rule redirects in invalid rule code detection ([#20245](https://github.com/astral-sh/ruff/pull/20245))
+- \[`flake8-bugbear`\] Mark the fix for `unreliable-callable-check` as always unsafe (`B004`) ([#20318](https://github.com/astral-sh/ruff/pull/20318))
+- \[`ruff`\] Allow dataclass attribute value instantiation from nested frozen dataclass (`RUF009`) ([#20352](https://github.com/astral-sh/ruff/pull/20352))
+
+### CLI
+
+- Add fixes to `output-format=sarif` ([#20300](https://github.com/astral-sh/ruff/pull/20300))
+- Treat panics as fatal diagnostics, sort panics last ([#20258](https://github.com/astral-sh/ruff/pull/20258))
+
+### Documentation
+
+- \[`ruff`\] Add `analyze.string-imports-min-dots` to settings ([#20375](https://github.com/astral-sh/ruff/pull/20375))
+- Update README.md with Albumentations new repository URL ([#20415](https://github.com/astral-sh/ruff/pull/20415))
+
+### Other changes
+
+- Bump MSRV to Rust 1.88 ([#20470](https://github.com/astral-sh/ruff/pull/20470))
+- Enable inline noqa for multiline strings in playground ([#20442](https://github.com/astral-sh/ruff/pull/20442))
+
+### Contributors
+
 - [@chirizxc](https://github.com/chirizxc)
+- [@danparizher](https://github.com/danparizher)
+- [@IDrokin117](https://github.com/IDrokin117)
+- [@amyreese](https://github.com/amyreese)
+- [@AlexWaygood](https://github.com/AlexWaygood)
+- [@dylwil3](https://github.com/dylwil3)
+- [@njhearp](https://github.com/njhearp)
+- [@woodruffw](https://github.com/woodruffw)
+- [@dcreager](https://github.com/dcreager)
+- [@TaKO8Ki](https://github.com/TaKO8Ki)
+- [@BurntSushi](https://github.com/BurntSushi)
+- [@salahelfarissi](https://github.com/salahelfarissi)
+- [@MichaReiser](https://github.com/MichaReiser)
 
-## 0.13.x
+## 0.13.0
 
-See [changelogs/0.13.x](./changelogs/0.13.x.md)
+Check out the [blog post](https://astral.sh/blog/ruff-v0.13.0) for a migration
+guide and overview of the changes!
+
+### Breaking changes
+
+- **Several rules can now add `from __future__ import annotations` automatically**
+
+    `TC001`, `TC002`, `TC003`, `RUF013`, and `UP037` now add `from __future__ import annotations` as part of their fixes when the
+    `lint.future-annotations` setting is enabled. This allows the rules to move
+    more imports into `TYPE_CHECKING` blocks (`TC001`, `TC002`, and `TC003`),
+    use PEP 604 union syntax on Python versions before 3.10 (`RUF013`), and
+    unquote more annotations (`UP037`).
+
+- **Full module paths are now used to verify first-party modules**
+
+    Ruff now checks that the full path to a module exists on disk before
+    categorizing it as a first-party import. This change makes first-party
+    import detection more accurate, helping to avoid false positives on local
+    directories with the same name as a third-party dependency, for example. See
+    the [FAQ
+    section](https://docs.astral.sh/ruff/faq/#how-does-ruff-determine-which-of-my-imports-are-first-party-third-party-etc) on import categorization for more details.
+
+- **Deprecated rules must now be selected by exact rule code**
+
+    Ruff will no longer activate deprecated rules selected by their group name
+    or prefix. As noted below, the two remaining deprecated rules were also
+    removed in this release, so this won't affect any current rules, but it will
+    still affect any deprecations in the future.
+
+- **The deprecated macOS configuration directory fallback has been removed**
+
+    Ruff will no longer look for a user-level configuration file at
+    `~/Library/Application Support/ruff/ruff.toml` on macOS. This feature was
+    deprecated in v0.5 in favor of using the [XDG
+    specification](https://specifications.freedesktop.org/basedir-spec/latest/)
+    (usually resolving to `~/.config/ruff/ruff.toml`), like on Linux. The
+    fallback and accompanying deprecation warning have now been removed.
+
+### Removed Rules
+
+The following rules have been removed:
+
+- [`pandas-df-variable-name`](https://docs.astral.sh/ruff/rules/pandas-df-variable-name) (`PD901`)
+- [`non-pep604-isinstance`](https://docs.astral.sh/ruff/rules/non-pep604-isinstance) (`UP038`)
+
+### Stabilization
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`airflow-dag-no-schedule-argument`](https://docs.astral.sh/ruff/rules/airflow-dag-no-schedule-argument)
+    (`AIR002`)
+- [`airflow3-removal`](https://docs.astral.sh/ruff/rules/airflow3-removal) (`AIR301`)
+- [`airflow3-moved-to-provider`](https://docs.astral.sh/ruff/rules/airflow3-moved-to-provider)
+    (`AIR302`)
+- [`airflow3-suggested-update`](https://docs.astral.sh/ruff/rules/airflow3-suggested-update)
+    (`AIR311`)
+- [`airflow3-suggested-to-move-to-provider`](https://docs.astral.sh/ruff/rules/airflow3-suggested-to-move-to-provider)
+    (`AIR312`)
+- [`long-sleep-not-forever`](https://docs.astral.sh/ruff/rules/long-sleep-not-forever) (`ASYNC116`)
+- [`f-string-number-format`](https://docs.astral.sh/ruff/rules/f-string-number-format) (`FURB116`)
+- [`os-symlink`](https://docs.astral.sh/ruff/rules/os-symlink) (`PTH211`)
+- [`generic-not-last-base-class`](https://docs.astral.sh/ruff/rules/generic-not-last-base-class)
+    (`PYI059`)
+- [`redundant-none-literal`](https://docs.astral.sh/ruff/rules/redundant-none-literal) (`PYI061`)
+- [`pytest-raises-ambiguous-pattern`](https://docs.astral.sh/ruff/rules/pytest-raises-ambiguous-pattern)
+    (`RUF043`)
+- [`unused-unpacked-variable`](https://docs.astral.sh/ruff/rules/unused-unpacked-variable)
+    (`RUF059`)
+- [`useless-class-metaclass-type`](https://docs.astral.sh/ruff/rules/useless-class-metaclass-type)
+    (`UP050`)
+
+The following behaviors have been stabilized:
+
+- [`assert-raises-exception`](https://docs.astral.sh/ruff/rules/assert-raises-exception) (`B017`)
+    now checks for direct calls to `unittest.TestCase.assert_raises` and `pytest.raises` instead of
+    only the context manager forms.
+- [`missing-trailing-comma`](https://docs.astral.sh/ruff/rules/missing-trailing-comma) (`COM812`)
+    and [`prohibited-trailing-comma`](https://docs.astral.sh/ruff/rules/prohibited-trailing-comma)
+    (`COM819`) now check for trailing commas in PEP 695 type parameter lists.
+- [`raw-string-in-exception`](https://docs.astral.sh/ruff/rules/raw-string-in-exception) (`EM101`)
+    now also checks for byte strings in exception messages.
+- [`invalid-mock-access`](https://docs.astral.sh/ruff/rules/invalid-mock-access) (`PGH005`) now
+    checks for `AsyncMock` methods like `not_awaited` in addition to the synchronous variants.
+- [`useless-import-alias`](https://docs.astral.sh/ruff/rules/useless-import-alias) (`PLC0414`) no
+    longer applies to `__init__.py` files, where it conflicted with one of the suggested fixes for
+    [`unused-import`](https://docs.astral.sh/ruff/rules/unused-import) (`F401`).
+- [`bidirectional-unicode`](https://docs.astral.sh/ruff/rules/bidirectional-unicode) (`PLE2502`) now
+    also checks for U+061C (Arabic Letter Mark).
+- The fix for
+    [`multiple-with-statements`](https://docs.astral.sh/ruff/rules/multiple-with-statements)
+    (`SIM117`) is now marked as always safe.
+
+### Preview features
+
+- \[`pyupgrade`\] Enable `UP043` in stub files ([#20027](https://github.com/astral-sh/ruff/pull/20027))
+
+### Bug fixes
+
+- \[`pyupgrade`\] Apply `UP008` only when the `__class__` cell exists ([#19424](https://github.com/astral-sh/ruff/pull/19424))
+- \[`ruff`\] Fix empty f-string detection in `in-empty-collection` (`RUF060`) ([#20249](https://github.com/astral-sh/ruff/pull/20249))
+
+### Server
+
+- Add support for using uv as an alternative formatter backend ([#19665](https://github.com/astral-sh/ruff/pull/19665))
+
+### Documentation
+
+- \[`pep8-naming`\] Fix formatting of `__all__` (`N816`) ([#20301](https://github.com/astral-sh/ruff/pull/20301))
 
 ## 0.12.x
 

CONTRIBUTING.md

@@ -321,15 +321,9 @@ them to [PyPI](https://pypi.org/project/ruff/).
 Ruff follows the [semver](https://semver.org/) versioning standard. However, as pre-1.0 software,
 even patch releases may contain [non-backwards-compatible changes](https://semver.org/#spec-item-4).
 
-### Installing tools
-
-1. Install `uv`: `curl -LsSf https://astral.sh/uv/install.sh | sh`
-
-1. Install `npm`: `brew install npm` or similar
-
 ### Creating a new release
 
-Commit each step of this process separately for easier review.
+1. Install `uv`: `curl -LsSf https://astral.sh/uv/install.sh | sh`
 
 1. Run `./scripts/release.sh`; this command will:
 
@@ -343,7 +337,6 @@ Commit each step of this process separately for easier review.
 
     - Often labels will be missing from pull requests they will need to be manually organized into the proper section
     - Changes should be edited to be user-facing descriptions, avoiding internal details
-    - Square brackets (eg, `[ruff]` project name) will be automatically escaped by `pre-commit`
 
     Additionally, for minor releases:
 
@@ -383,13 +376,13 @@ Commit each step of this process separately for easier review.
 
 1. Verify the GitHub release:
 
-    1. The changelog should match the content of `CHANGELOG.md`
+    1. The Changelog should match the content of `CHANGELOG.md`
+    1. Append the contributors from the `scripts/release.sh` script
 
 1. If needed, [update the schemastore](https://github.com/astral-sh/ruff/blob/main/scripts/update_schemastore.py).
 
     1. One can determine if an update is needed when
         `git diff old-version-tag new-version-tag -- ruff.schema.json` returns a non-empty diff.
-    1. Run `uv run --only-dev --no-sync scripts/update_schemastore.py --proto <https|ssh>`
     1. Once run successfully, you should follow the link in the output to create a PR.
 
 1. If needed, update the [`ruff-lsp`](https://github.com/astral-sh/ruff-lsp) and

Cargo.lock

@@ -50,9 +50,9 @@ dependencies = [
 
 [[package]]
 name = "anstream"
-version = "0.6.21"
+version = "0.6.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43d5b281e737544384e969a5ccad3f1cdd24b48086a0fc1b2a5262a26b8f4f4a"
+checksum = "3ae563653d1938f79b1ab1b5e668c87c76a9930414574a6583a7b7e11a8e6192"
 dependencies = [
  "anstyle",
  "anstyle-parse",
@@ -65,9 +65,9 @@ dependencies = [
 
 [[package]]
 name = "anstyle"
-version = "1.0.13"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5192cca8006f1fd4f7237516f40fa183bb07f8fbdfedaa0036de5ea9b0b45e78"
+checksum = "862ed96ca487e809f1c8e5a8447f6ee2cf102f846893800b20cebdf541fc6bbd"
 
 [[package]]
 name = "anstyle-lossy"
@@ -214,6 +214,15 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
+[[package]]
+name = "bincode"
+version = "1.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "bincode"
 version = "2.0.1"
@@ -234,26 +243,6 @@ dependencies = [
  "virtue",
 ]
 
-[[package]]
-name = "bindgen"
-version = "0.72.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "993776b509cfb49c750f11b8f07a46fa23e0a1386ffc01fb1e7d343efc387895"
-dependencies = [
- "bitflags 2.9.4",
- "cexpr",
- "clang-sys",
- "itertools 0.10.5",
- "log",
- "prettyplease",
- "proc-macro2",
- "quote",
- "regex",
- "rustc-hash",
- "shlex",
- "syn",
-]
-
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -327,9 +316,9 @@ dependencies = [
 
 [[package]]
 name = "camino"
-version = "1.2.1"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "276a59bf2b2c967788139340c9f0c5b12d7fd6630315c15c217e559de85d2609"
+checksum = "e1de8bc0aa9e9385ceb3bf0c152e3a9b9544f6c4a912c8ae504e80c1f0368603"
 dependencies = [
  "serde_core",
 ]
@@ -361,15 +350,6 @@ dependencies = [
  "shlex",
 ]
 
-[[package]]
-name = "cexpr"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fac387a98bb7c37292057cffc56d62ecb629900026402633ae9160df93a8766"
-dependencies = [
- "nom",
-]
-
 [[package]]
 name = "cfg-if"
 version = "1.0.3"
@@ -420,17 +400,6 @@ dependencies = [
  "half",
 ]
 
-[[package]]
-name = "clang-sys"
-version = "1.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b023947811758c97c59bf9d1c188fd619ad4718dcaa767947df1cadb14f39f4"
-dependencies = [
- "glob",
- "libc",
- "libloading",
-]
-
 [[package]]
 name = "clap"
 version = "4.5.48"
@@ -517,17 +486,16 @@ dependencies = [
 
 [[package]]
 name = "codspeed"
-version = "4.0.4"
+version = "3.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0f62ea8934802f8b374bf691eea524c3aa444d7014f604dd4182a3667b69510"
+checksum = "35584c5fcba8059780748866387fb97c5a203bcfc563fc3d0790af406727a117"
 dependencies = [
  "anyhow",
- "bindgen",
- "cc",
+ "bincode 1.3.3",
  "colored 2.2.0",
  "glob",
  "libc",
- "nix 0.30.1",
+ "nix 0.29.0",
  "serde",
  "serde_json",
  "statrs",
@@ -536,22 +504,20 @@ dependencies = [
 
 [[package]]
 name = "codspeed-criterion-compat"
-version = "4.0.4"
+version = "3.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d87efbc015fc0ff1b2001cd87df01c442824de677e01a77230bf091534687abb"
+checksum = "78f6c1c6bed5fd84d319e8b0889da051daa361c79b7709c9394dfe1a882bba67"
 dependencies = [
- "clap",
  "codspeed",
  "codspeed-criterion-compat-walltime",
  "colored 2.2.0",
- "regex",
 ]
 
 [[package]]
 name = "codspeed-criterion-compat-walltime"
-version = "4.0.4"
+version = "3.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae5713ace440123bb4f1f78dd068d46872cb8548bfe61f752e7b2ad2c06d7f00"
+checksum = "c989289ce6b1cbde72ed560496cb8fbf5aa14d5ef5666f168e7f87751038352e"
 dependencies = [
  "anes",
  "cast",
@@ -574,22 +540,20 @@ dependencies = [
 
 [[package]]
 name = "codspeed-divan-compat"
-version = "4.0.4"
+version = "3.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95b4214b974f8f5206497153e89db90274e623f06b00bf4b9143eeb7735d975d"
+checksum = "adf64eda57508448d59efd940bad62ede7c50b0d451a150b8d6a0eca642792a6"
 dependencies = [
- "clap",
  "codspeed",
  "codspeed-divan-compat-macros",
  "codspeed-divan-compat-walltime",
- "regex",
 ]
 
 [[package]]
 name = "codspeed-divan-compat-macros"
-version = "4.0.4"
+version = "3.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a53f34a16cb70ce4fd9ad57e1db016f0718e434f34179ca652006443b9a39967"
+checksum = "058167258e819b16a4ba601fdfe270349ef191154758dbce122c62a698f70ba8"
 dependencies = [
  "divan-macros",
  "itertools 0.14.0",
@@ -601,9 +565,9 @@ dependencies = [
 
 [[package]]
 name = "codspeed-divan-compat-walltime"
-version = "4.0.4"
+version = "3.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8a5099050c8948dce488b8eaa2e68dc5cf571cb8f9fce99aaaecbdddb940bcd"
+checksum = "48f9866ee3a4ef9d2868823ea5811886763af244f2df584ca247f49281c43f1f"
 dependencies = [
  "cfg-if",
  "clap",
@@ -854,27 +818,6 @@ dependencies = [
  "typenum",
 ]
 
-[[package]]
-name = "csv"
-version = "1.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acdc4883a9c96732e4733212c01447ebd805833b7275a73ca3ee080fd77afdaf"
-dependencies = [
- "csv-core",
- "itoa",
- "ryu",
- "serde",
-]
-
-[[package]]
-name = "csv-core"
-version = "0.1.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d02f3b0da4c6504f86e9cd789d8dbafab48c2321be74e9987593de5a894d93d"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "ctrlc"
 version = "3.5.0"
@@ -1563,7 +1506,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4b0f83760fb341a774ed326568e19f5a863af4a952def8c39f9ab92fd95b88e5"
 dependencies = [
  "equivalent",
- "hashbrown 0.15.5",
+ "hashbrown 0.16.0",
  "serde",
  "serde_core",
 ]
@@ -1837,15 +1780,15 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.177"
+version = "0.2.175"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2874a2af47a2325c2001a6e6fad9b16a53b802102b528163885171cf92b15976"
+checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543"
 
 [[package]]
 name = "libcst"
-version = "1.8.5"
+version = "1.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d56bcd52d9b5e5f43e7fba20eb1f423ccb18c84cdf1cb506b8c1b95776b0b49"
+checksum = "052ef5d9fc958a51aeebdf3713573b36c6fd6eed0bf0e60e204d2c0f8cf19b9f"
 dependencies = [
  "annotate-snippets",
  "libcst_derive",
@@ -1858,24 +1801,14 @@ dependencies = [
 
 [[package]]
 name = "libcst_derive"
-version = "1.8.5"
+version = "1.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fcf5a725c4db703660124fe0edb98285f1605d0b87b7ee8684b699764a4f01a"
+checksum = "a91a751afee92cbdd59d4bc6754c7672712eec2d30a308f23de4e3287b2929cb"
 dependencies = [
  "quote",
  "syn",
 ]
 
-[[package]]
-name = "libloading"
-version = "0.8.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7c4b02199fee7c5d21a5ae7d8cfa79a6ef5bb2fc834d6e9058e89c825efdc55"
-dependencies = [
- "cfg-if",
- "windows-link 0.2.0",
-]
-
 [[package]]
 name = "libmimalloc-sys"
 version = "0.1.44"
@@ -2017,9 +1950,9 @@ checksum = "2f926ade0c4e170215ae43342bf13b9310a437609c81f29f86c5df6657582ef9"
 
 [[package]]
 name = "memchr"
-version = "2.7.6"
+version = "2.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f52b00d39961fc5b2736ea853c9cc86238e165017a493d1d5c8eac6bdc4cc273"
+checksum = "32a282da65faaf38286cf3be983213fcf1d2e2a58700e808f83f4ea9a4804bc0"
 
 [[package]]
 name = "memoffset"
@@ -2528,16 +2461,6 @@ dependencies = [
  "yansi",
 ]
 
-[[package]]
-name = "prettyplease"
-version = "0.2.37"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "479ca8adacdd7ce8f1fb39ce9ecccbfe93a3f1344b3d0d97f20bc0196208f62b"
-dependencies = [
- "proc-macro2",
- "syn",
-]
-
 [[package]]
 name = "proc-macro-crate"
 version = "3.4.0"
@@ -2569,9 +2492,9 @@ dependencies = [
 
 [[package]]
 name = "pyproject-toml"
-version = "0.13.7"
+version = "0.13.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6d755483ad14b49e76713b52285235461a5b4f73f17612353e11a5de36a5fd2"
+checksum = "ec768e063102b426e8962989758115e8659485124de9207bc365fab524125d65"
 dependencies = [
  "indexmap",
  "pep440_rs",
@@ -2769,9 +2692,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.11.3"
+version = "1.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b5288124840bee7b386bc413c487869b360b2b4ec421ea56425128692f2a82c"
+checksum = "23d7fd106d8c02486a8d64e778353d1cffe08ce79ac2e82f540c86d0facf6912"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -2781,9 +2704,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.4.11"
+version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "833eb9ce86d40ef33cb1306d8accf7bc8ec2bfea4355cbdebb3df68b40925cad"
+checksum = "6b9458fa0bfeeac22b5ca447c63aaf45f28439a709ccd244698632f9aa6394d6"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -2815,12 +2738,12 @@ dependencies = [
 
 [[package]]
 name = "ruff"
-version = "0.14.1"
+version = "0.13.3"
 dependencies = [
  "anyhow",
  "argfile",
  "assert_fs",
- "bincode",
+ "bincode 2.0.1",
  "bitflags 2.9.4",
  "cachedir",
  "clap",
@@ -2854,7 +2777,6 @@ dependencies = [
  "ruff_python_ast",
  "ruff_python_formatter",
  "ruff_python_parser",
- "ruff_python_trivia",
  "ruff_server",
  "ruff_source_file",
  "ruff_text_size",
@@ -3072,7 +2994,7 @@ dependencies = [
 
 [[package]]
 name = "ruff_linter"
-version = "0.14.1"
+version = "0.13.3"
 dependencies = [
  "aho-corasick",
  "anyhow",
@@ -3426,7 +3348,7 @@ dependencies = [
 
 [[package]]
 name = "ruff_wasm"
-version = "0.14.1"
+version = "0.13.3"
 dependencies = [
  "console_error_panic_hook",
  "console_log",
@@ -3540,8 +3462,8 @@ checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
 
 [[package]]
 name = "salsa"
-version = "0.24.0"
-source = "git+https://github.com/salsa-rs/salsa.git?rev=ef9f9329be6923acd050c8dddd172e3bc93e8051#ef9f9329be6923acd050c8dddd172e3bc93e8051"
+version = "0.23.0"
+source = "git+https://github.com/salsa-rs/salsa.git?rev=29ab321b45d00daa4315fa2a06f7207759a8c87e#29ab321b45d00daa4315fa2a06f7207759a8c87e"
 dependencies = [
  "boxcar",
  "compact_str",
@@ -3564,13 +3486,13 @@ dependencies = [
 
 [[package]]
 name = "salsa-macro-rules"
-version = "0.24.0"
-source = "git+https://github.com/salsa-rs/salsa.git?rev=ef9f9329be6923acd050c8dddd172e3bc93e8051#ef9f9329be6923acd050c8dddd172e3bc93e8051"
+version = "0.23.0"
+source = "git+https://github.com/salsa-rs/salsa.git?rev=29ab321b45d00daa4315fa2a06f7207759a8c87e#29ab321b45d00daa4315fa2a06f7207759a8c87e"
 
 [[package]]
 name = "salsa-macros"
-version = "0.24.0"
-source = "git+https://github.com/salsa-rs/salsa.git?rev=ef9f9329be6923acd050c8dddd172e3bc93e8051#ef9f9329be6923acd050c8dddd172e3bc93e8051"
+version = "0.23.0"
+source = "git+https://github.com/salsa-rs/salsa.git?rev=29ab321b45d00daa4315fa2a06f7207759a8c87e#29ab321b45d00daa4315fa2a06f7207759a8c87e"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4305,26 +4227,6 @@ dependencies = [
  "ty_python_semantic",
 ]
 
-[[package]]
-name = "ty_completion_eval"
-version = "0.0.0"
-dependencies = [
- "anyhow",
- "bstr",
- "clap",
- "csv",
- "regex",
- "ruff_db",
- "ruff_text_size",
- "serde",
- "tempfile",
- "toml",
- "ty_ide",
- "ty_project",
- "ty_python_semantic",
- "walkdir",
-]
-
 [[package]]
 name = "ty_ide"
 version = "0.0.0"
@@ -4499,7 +4401,6 @@ dependencies = [
  "colored 3.0.0",
  "insta",
  "memchr",
- "path-slash",
  "regex",
  "ruff_db",
  "ruff_index",

Cargo.toml

@@ -43,7 +43,6 @@ ruff_workspace = { path = "crates/ruff_workspace" }
 
 ty = { path = "crates/ty" }
 ty_combine = { path = "crates/ty_combine" }
-ty_completion_eval = { path = "crates/ty_completion_eval" }
 ty_ide = { path = "crates/ty_ide" }
 ty_project = { path = "crates/ty_project", default-features = false }
 ty_python_semantic = { path = "crates/ty_python_semantic" }
@@ -70,9 +69,8 @@ camino = { version = "1.1.7" }
 clap = { version = "4.5.3", features = ["derive"] }
 clap_complete_command = { version = "0.6.0" }
 clearscreen = { version = "4.0.0" }
-csv = { version = "1.3.1" }
-divan = { package = "codspeed-divan-compat", version = "4.0.4" }
-codspeed-criterion-compat = { version = "4.0.4", default-features = false }
+divan = { package = "codspeed-divan-compat", version = "3.0.2" }
+codspeed-criterion-compat = { version = "3.0.2", default-features = false }
 colored = { version = "3.0.0" }
 console_error_panic_hook = { version = "0.1.7" }
 console_log = { version = "1.0.0" }
@@ -146,7 +144,7 @@ regex-automata = { version = "0.4.9" }
 rustc-hash = { version = "2.0.0" }
 rustc-stable-hash = { version = "0.1.2" }
 # When updating salsa, make sure to also update the revision in `fuzz/Cargo.toml`
-salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "ef9f9329be6923acd050c8dddd172e3bc93e8051", default-features = false, features = [
+salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "29ab321b45d00daa4315fa2a06f7207759a8c87e", default-features = false, features = [
     "compact_str",
     "macros",
     "salsa_unstable",
@@ -205,7 +203,7 @@ wild = { version = "2" }
 zip = { version = "0.6.6", default-features = false }
 
 [workspace.metadata.cargo-shear]
-ignored = ["getrandom", "ruff_options_metadata", "uuid", "get-size2", "ty_completion_eval"]
+ignored = ["getrandom", "ruff_options_metadata", "uuid", "get-size2"]
 
 
 [workspace.lints.rust]
@@ -268,7 +266,12 @@ large_stack_arrays = "allow"
 
 
 [profile.release]
-lto = "fat"
+# Note that we set these explicitly, and these values
+# were chosen based on a trade-off between compile times
+# and runtime performance[1].
+#
+# [1]: https://github.com/astral-sh/ruff/pull/9031
+lto = "thin"
 codegen-units = 16
 
 # Some crates don't change as much but benefit more from
@@ -278,8 +281,6 @@ codegen-units = 16
 codegen-units = 1
 [profile.release.package.ruff_python_ast]
 codegen-units = 1
-[profile.release.package.salsa]
-codegen-units = 1
 
 [profile.dev.package.insta]
 opt-level = 3
@@ -295,30 +296,11 @@ opt-level = 3
 [profile.dev.package.ruff_python_parser]
 opt-level = 1
 
-# This profile is meant to mimic the `release` profile as closely as
-# possible, but using settings that are more beneficial for iterative
-# development. That is, the `release` profile is intended for actually
-# building the release, where as `profiling` is meant for building ty/ruff
-# for running benchmarks.
-#
-# The main differences here are to avoid stripping debug information
-# and disabling fat lto. This does result in a mismatch between our release
-# configuration and our benchmarking configuration, which is unfortunate.
-# But compile times with `lto = fat` are completely untenable.
-#
-# This setup does risk that we are measuring something in benchmarks
-# that we aren't shipping, but in order to make those two the same, we'd
-# either need to make compile times way worse for development, or take
-# a hit to binary size and a slight hit to runtime performance in our
-# release builds.
-#
 # Use the `--profile profiling` flag to show symbols in release mode.
 # e.g. `cargo build --profile profiling`
 [profile.profiling]
 inherits = "release"
-strip = false
-debug = "full"
-lto = false
+debug = 1
 
 # The profile that 'cargo dist' will build with.
 [profile.dist]

README.md

@@ -28,7 +28,7 @@ An extremely fast Python linter and code formatter, written in Rust.
 - ⚡️ 10-100x faster than existing linters (like Flake8) and formatters (like Black)
 - 🐍 Installable via `pip`
 - 🛠️ `pyproject.toml` support
-- 🤝 Python 3.14 compatibility
+- 🤝 Python 3.13 compatibility
 - ⚖️ Drop-in parity with [Flake8](https://docs.astral.sh/ruff/faq/#how-does-ruffs-linter-compare-to-flake8), isort, and [Black](https://docs.astral.sh/ruff/faq/#how-does-ruffs-formatter-compare-to-black)
 - 📦 Built-in caching, to avoid re-analyzing unchanged files
 - 🔧 Fix support, for automatic error correction (e.g., automatically remove unused imports)
@@ -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/0.14.1/install.sh | sh
-powershell -c "irm https://astral.sh/ruff/0.14.1/install.ps1 | iex"
+curl -LsSf https://astral.sh/ruff/0.13.3/install.sh | sh
+powershell -c "irm https://astral.sh/ruff/0.13.3/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: v0.14.1
+  rev: v0.13.3
   hooks:
     # Run the linter.
     - id: ruff-check

changelogs/0.13.x.md

@@ -1,263 +0,0 @@
-# Changelog 0.13.x
-
-## 0.13.0
-
-Check out the [blog post](https://astral.sh/blog/ruff-v0.13.0) for a migration
-guide and overview of the changes!
-
-### Breaking changes
-
-- **Several rules can now add `from __future__ import annotations` automatically**
-
-    `TC001`, `TC002`, `TC003`, `RUF013`, and `UP037` now add `from __future__ import annotations` as part of their fixes when the
-    `lint.future-annotations` setting is enabled. This allows the rules to move
-    more imports into `TYPE_CHECKING` blocks (`TC001`, `TC002`, and `TC003`),
-    use PEP 604 union syntax on Python versions before 3.10 (`RUF013`), and
-    unquote more annotations (`UP037`).
-
-- **Full module paths are now used to verify first-party modules**
-
-    Ruff now checks that the full path to a module exists on disk before
-    categorizing it as a first-party import. This change makes first-party
-    import detection more accurate, helping to avoid false positives on local
-    directories with the same name as a third-party dependency, for example. See
-    the [FAQ
-    section](https://docs.astral.sh/ruff/faq/#how-does-ruff-determine-which-of-my-imports-are-first-party-third-party-etc) on import categorization for more details.
-
-- **Deprecated rules must now be selected by exact rule code**
-
-    Ruff will no longer activate deprecated rules selected by their group name
-    or prefix. As noted below, the two remaining deprecated rules were also
-    removed in this release, so this won't affect any current rules, but it will
-    still affect any deprecations in the future.
-
-- **The deprecated macOS configuration directory fallback has been removed**
-
-    Ruff will no longer look for a user-level configuration file at
-    `~/Library/Application Support/ruff/ruff.toml` on macOS. This feature was
-    deprecated in v0.5 in favor of using the [XDG
-    specification](https://specifications.freedesktop.org/basedir-spec/latest/)
-    (usually resolving to `~/.config/ruff/ruff.toml`), like on Linux. The
-    fallback and accompanying deprecation warning have now been removed.
-
-### Removed Rules
-
-The following rules have been removed:
-
-- [`pandas-df-variable-name`](https://docs.astral.sh/ruff/rules/pandas-df-variable-name) (`PD901`)
-- [`non-pep604-isinstance`](https://docs.astral.sh/ruff/rules/non-pep604-isinstance) (`UP038`)
-
-### Stabilization
-
-The following rules have been stabilized and are no longer in preview:
-
-- [`airflow-dag-no-schedule-argument`](https://docs.astral.sh/ruff/rules/airflow-dag-no-schedule-argument)
-    (`AIR002`)
-- [`airflow3-removal`](https://docs.astral.sh/ruff/rules/airflow3-removal) (`AIR301`)
-- [`airflow3-moved-to-provider`](https://docs.astral.sh/ruff/rules/airflow3-moved-to-provider)
-    (`AIR302`)
-- [`airflow3-suggested-update`](https://docs.astral.sh/ruff/rules/airflow3-suggested-update)
-    (`AIR311`)
-- [`airflow3-suggested-to-move-to-provider`](https://docs.astral.sh/ruff/rules/airflow3-suggested-to-move-to-provider)
-    (`AIR312`)
-- [`long-sleep-not-forever`](https://docs.astral.sh/ruff/rules/long-sleep-not-forever) (`ASYNC116`)
-- [`f-string-number-format`](https://docs.astral.sh/ruff/rules/f-string-number-format) (`FURB116`)
-- [`os-symlink`](https://docs.astral.sh/ruff/rules/os-symlink) (`PTH211`)
-- [`generic-not-last-base-class`](https://docs.astral.sh/ruff/rules/generic-not-last-base-class)
-    (`PYI059`)
-- [`redundant-none-literal`](https://docs.astral.sh/ruff/rules/redundant-none-literal) (`PYI061`)
-- [`pytest-raises-ambiguous-pattern`](https://docs.astral.sh/ruff/rules/pytest-raises-ambiguous-pattern)
-    (`RUF043`)
-- [`unused-unpacked-variable`](https://docs.astral.sh/ruff/rules/unused-unpacked-variable)
-    (`RUF059`)
-- [`useless-class-metaclass-type`](https://docs.astral.sh/ruff/rules/useless-class-metaclass-type)
-    (`UP050`)
-
-The following behaviors have been stabilized:
-
-- [`assert-raises-exception`](https://docs.astral.sh/ruff/rules/assert-raises-exception) (`B017`)
-    now checks for direct calls to `unittest.TestCase.assert_raises` and `pytest.raises` instead of
-    only the context manager forms.
-- [`missing-trailing-comma`](https://docs.astral.sh/ruff/rules/missing-trailing-comma) (`COM812`)
-    and [`prohibited-trailing-comma`](https://docs.astral.sh/ruff/rules/prohibited-trailing-comma)
-    (`COM819`) now check for trailing commas in PEP 695 type parameter lists.
-- [`raw-string-in-exception`](https://docs.astral.sh/ruff/rules/raw-string-in-exception) (`EM101`)
-    now also checks for byte strings in exception messages.
-- [`invalid-mock-access`](https://docs.astral.sh/ruff/rules/invalid-mock-access) (`PGH005`) now
-    checks for `AsyncMock` methods like `not_awaited` in addition to the synchronous variants.
-- [`useless-import-alias`](https://docs.astral.sh/ruff/rules/useless-import-alias) (`PLC0414`) no
-    longer applies to `__init__.py` files, where it conflicted with one of the suggested fixes for
-    [`unused-import`](https://docs.astral.sh/ruff/rules/unused-import) (`F401`).
-- [`bidirectional-unicode`](https://docs.astral.sh/ruff/rules/bidirectional-unicode) (`PLE2502`) now
-    also checks for U+061C (Arabic Letter Mark).
-- The fix for
-    [`multiple-with-statements`](https://docs.astral.sh/ruff/rules/multiple-with-statements)
-    (`SIM117`) is now marked as always safe.
-
-### Preview features
-
-- \[`pyupgrade`\] Enable `UP043` in stub files ([#20027](https://github.com/astral-sh/ruff/pull/20027))
-
-### Bug fixes
-
-- \[`pyupgrade`\] Apply `UP008` only when the `__class__` cell exists ([#19424](https://github.com/astral-sh/ruff/pull/19424))
-- \[`ruff`\] Fix empty f-string detection in `in-empty-collection` (`RUF060`) ([#20249](https://github.com/astral-sh/ruff/pull/20249))
-
-### Server
-
-- Add support for using uv as an alternative formatter backend ([#19665](https://github.com/astral-sh/ruff/pull/19665))
-
-### Documentation
-
-- \[`pep8-naming`\] Fix formatting of `__all__` (`N816`) ([#20301](https://github.com/astral-sh/ruff/pull/20301))
-
-## 0.13.1
-
-Released on 2025-09-18.
-
-### Preview features
-
-- \[`flake8-simplify`\] Detect unnecessary `None` default for additional key expression types (`SIM910`) ([#20343](https://github.com/astral-sh/ruff/pull/20343))
-- \[`flake8-use-pathlib`\] Add fix for `PTH123` ([#20169](https://github.com/astral-sh/ruff/pull/20169))
-- \[`flake8-use-pathlib`\] Fix `PTH101`, `PTH104`, `PTH105`, `PTH121` fixes ([#20143](https://github.com/astral-sh/ruff/pull/20143))
-- \[`flake8-use-pathlib`\] Make `PTH111` fix unsafe because it can change behavior ([#20215](https://github.com/astral-sh/ruff/pull/20215))
-- \[`pycodestyle`\] Fix `E301` to only trigger for functions immediately within a class ([#19768](https://github.com/astral-sh/ruff/pull/19768))
-- \[`refurb`\] Mark `single-item-membership-test` fix as always unsafe (`FURB171`) ([#20279](https://github.com/astral-sh/ruff/pull/20279))
-
-### Bug fixes
-
-- Handle t-strings for token-based rules and suppression comments ([#20357](https://github.com/astral-sh/ruff/pull/20357))
-- \[`flake8-bandit`\] Fix truthiness: dict-only `**` displays not truthy for `shell` (`S602`, `S604`, `S609`) ([#20177](https://github.com/astral-sh/ruff/pull/20177))
-- \[`flake8-simplify`\] Fix diagnostic to show correct method name for `str.rsplit` calls (`SIM905`) ([#20459](https://github.com/astral-sh/ruff/pull/20459))
-- \[`flynt`\] Use triple quotes for joined raw strings with newlines (`FLY002`) ([#20197](https://github.com/astral-sh/ruff/pull/20197))
-- \[`pyupgrade`\] Fix false positive when class name is shadowed by local variable (`UP008`) ([#20427](https://github.com/astral-sh/ruff/pull/20427))
-- \[`pyupgrade`\] Prevent infinite loop with `I002` and `UP026` ([#20327](https://github.com/astral-sh/ruff/pull/20327))
-- \[`ruff`\] Recognize t-strings, generators, and lambdas in `invalid-index-type` (`RUF016`) ([#20213](https://github.com/astral-sh/ruff/pull/20213))
-
-### Rule changes
-
-- \[`RUF102`\] Respect rule redirects in invalid rule code detection ([#20245](https://github.com/astral-sh/ruff/pull/20245))
-- \[`flake8-bugbear`\] Mark the fix for `unreliable-callable-check` as always unsafe (`B004`) ([#20318](https://github.com/astral-sh/ruff/pull/20318))
-- \[`ruff`\] Allow dataclass attribute value instantiation from nested frozen dataclass (`RUF009`) ([#20352](https://github.com/astral-sh/ruff/pull/20352))
-
-### CLI
-
-- Add fixes to `output-format=sarif` ([#20300](https://github.com/astral-sh/ruff/pull/20300))
-- Treat panics as fatal diagnostics, sort panics last ([#20258](https://github.com/astral-sh/ruff/pull/20258))
-
-### Documentation
-
-- \[`ruff`\] Add `analyze.string-imports-min-dots` to settings ([#20375](https://github.com/astral-sh/ruff/pull/20375))
-- Update README.md with Albumentations new repository URL ([#20415](https://github.com/astral-sh/ruff/pull/20415))
-
-### Other changes
-
-- Bump MSRV to Rust 1.88 ([#20470](https://github.com/astral-sh/ruff/pull/20470))
-- Enable inline noqa for multiline strings in playground ([#20442](https://github.com/astral-sh/ruff/pull/20442))
-
-### Contributors
-
-- [@chirizxc](https://github.com/chirizxc)
-- [@danparizher](https://github.com/danparizher)
-- [@IDrokin117](https://github.com/IDrokin117)
-- [@amyreese](https://github.com/amyreese)
-- [@AlexWaygood](https://github.com/AlexWaygood)
-- [@dylwil3](https://github.com/dylwil3)
-- [@njhearp](https://github.com/njhearp)
-- [@woodruffw](https://github.com/woodruffw)
-- [@dcreager](https://github.com/dcreager)
-- [@TaKO8Ki](https://github.com/TaKO8Ki)
-- [@BurntSushi](https://github.com/BurntSushi)
-- [@salahelfarissi](https://github.com/salahelfarissi)
-- [@MichaReiser](https://github.com/MichaReiser)
-
-## 0.13.2
-
-Released on 2025-09-25.
-
-### Preview features
-
-- \[`flake8-async`\] Implement `blocking-path-method` (`ASYNC240`) ([#20264](https://github.com/astral-sh/ruff/pull/20264))
-- \[`flake8-bugbear`\] Implement `map-without-explicit-strict` (`B912`) ([#20429](https://github.com/astral-sh/ruff/pull/20429))
-- \[`flake8-bultins`\] Detect class-scope builtin shadowing in decorators, default args, and attribute initializers (`A003`) ([#20178](https://github.com/astral-sh/ruff/pull/20178))
-- \[`ruff`\] Implement `logging-eager-conversion` (`RUF065`) ([#19942](https://github.com/astral-sh/ruff/pull/19942))
-- Include `.pyw` files by default when linting and formatting ([#20458](https://github.com/astral-sh/ruff/pull/20458))
-
-### Bug fixes
-
-- Deduplicate input paths ([#20105](https://github.com/astral-sh/ruff/pull/20105))
-- \[`flake8-comprehensions`\] Preserve trailing commas for single-element lists (`C409`) ([#19571](https://github.com/astral-sh/ruff/pull/19571))
-- \[`flake8-pyi`\] Avoid syntax error from conflict with `PIE790` (`PYI021`) ([#20010](https://github.com/astral-sh/ruff/pull/20010))
-- \[`flake8-simplify`\] Correct fix for positive `maxsplit` without separator (`SIM905`) ([#20056](https://github.com/astral-sh/ruff/pull/20056))
-- \[`pyupgrade`\] Fix `UP008` not to apply when `__class__` is a local variable ([#20497](https://github.com/astral-sh/ruff/pull/20497))
-- \[`ruff`\] Fix `B004` to skip invalid `hasattr`/`getattr` calls ([#20486](https://github.com/astral-sh/ruff/pull/20486))
-- \[`ruff`\] Replace `-nan` with `nan` when using the value to construct a `Decimal` (`FURB164` ) ([#20391](https://github.com/astral-sh/ruff/pull/20391))
-
-### Documentation
-
-- Add 'Finding ways to help' to CONTRIBUTING.md ([#20567](https://github.com/astral-sh/ruff/pull/20567))
-- Update import path to `ruff-wasm-web` ([#20539](https://github.com/astral-sh/ruff/pull/20539))
-- \[`flake8-bandit`\] Clarify the supported hashing functions (`S324`) ([#20534](https://github.com/astral-sh/ruff/pull/20534))
-
-### Other changes
-
-- \[`playground`\] Allow hover quick fixes to appear for overlapping diagnostics ([#20527](https://github.com/astral-sh/ruff/pull/20527))
-- \[`playground`\] Fix non‑BMP code point handling in quick fixes and markers ([#20526](https://github.com/astral-sh/ruff/pull/20526))
-
-### Contributors
-
-- [@BurntSushi](https://github.com/BurntSushi)
-- [@mtshiba](https://github.com/mtshiba)
-- [@second-ed](https://github.com/second-ed)
-- [@danparizher](https://github.com/danparizher)
-- [@ShikChen](https://github.com/ShikChen)
-- [@PieterCK](https://github.com/PieterCK)
-- [@GDYendell](https://github.com/GDYendell)
-- [@RazerM](https://github.com/RazerM)
-- [@TaKO8Ki](https://github.com/TaKO8Ki)
-- [@amyreese](https://github.com/amyreese)
-- [@ntbre](https://github.com/ntBre)
-- [@MichaReiser](https://github.com/MichaReiser)
-
-## 0.13.3
-
-Released on 2025-10-02.
-
-### Preview features
-
-- Display diffs for `ruff format --check` and add support for different output formats ([#20443](https://github.com/astral-sh/ruff/pull/20443))
-- \[`pyflakes`\] Handle some common submodule import situations for `unused-import` (`F401`) ([#20200](https://github.com/astral-sh/ruff/pull/20200))
-- \[`ruff`\] Do not flag `%r` + `repr()` combinations (`RUF065`) ([#20600](https://github.com/astral-sh/ruff/pull/20600))
-
-### Bug fixes
-
-- \[`cli`\] Add conflict between `--add-noqa` and `--diff` options ([#20642](https://github.com/astral-sh/ruff/pull/20642))
-- \[`pylint`\] Exempt required imports from `PLR0402` ([#20381](https://github.com/astral-sh/ruff/pull/20381))
-- \[`pylint`\] Fix missing `max-nested-blocks` in settings display ([#20574](https://github.com/astral-sh/ruff/pull/20574))
-- \[`pyupgrade`\] Prevent infinite loop with `I002` and `UP026` ([#20634](https://github.com/astral-sh/ruff/pull/20634))
-
-### Rule changes
-
-- \[`flake8-simplify`\] Improve help message clarity (`SIM105`) ([#20548](https://github.com/astral-sh/ruff/pull/20548))
-
-### Documentation
-
-- Add the *The Basics* title back to CONTRIBUTING.md ([#20624](https://github.com/astral-sh/ruff/pull/20624))
-- Fixed documentation for try_consider_else ([#20587](https://github.com/astral-sh/ruff/pull/20587))
-- \[`isort`\] Clarify dependency between `order-by-type` and `case-sensitive` settings ([#20559](https://github.com/astral-sh/ruff/pull/20559))
-- \[`pylint`\] Clarify fix safety to include left-hand hashability (`PLR6201`) ([#20518](https://github.com/astral-sh/ruff/pull/20518))
-
-### Other changes
-
-- \[`playground`\] Fix quick fixes for empty ranges in playground ([#20599](https://github.com/astral-sh/ruff/pull/20599))
-
-### Contributors
-
-- [@TaKO8Ki](https://github.com/TaKO8Ki)
-- [@ntBre](https://github.com/ntBre)
-- [@dylwil3](https://github.com/dylwil3)
-- [@MichaReiser](https://github.com/MichaReiser)
-- [@danparizher](https://github.com/danparizher)
-- [@LilMonk](https://github.com/LilMonk)
-- [@mgiovani](https://github.com/mgiovani)
-- [@IDrokin117](https://github.com/IDrokin117)

crates/ruff/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ruff"
-version = "0.14.1"
+version = "0.13.3"
 publish = true
 authors = { workspace = true }
 edition = { workspace = true }
@@ -72,7 +72,6 @@ dunce = { workspace = true }
 indoc = { workspace = true }
 insta = { workspace = true, features = ["filters", "json"] }
 insta-cmd = { workspace = true }
-ruff_python_trivia = { workspace = true }
 tempfile = { workspace = true }
 test-case = { workspace = true }
 

crates/ruff/src/diagnostics.rs

@@ -13,6 +13,7 @@ use log::{debug, warn};
 use ruff_db::diagnostic::Diagnostic;
 use ruff_linter::codes::Rule;
 use ruff_linter::linter::{FixTable, FixerResult, LinterResult, ParseSource, lint_fix, lint_only};
+use ruff_linter::message::create_syntax_error_diagnostic;
 use ruff_linter::package::PackageRoot;
 use ruff_linter::pyproject_toml::lint_pyproject_toml;
 use ruff_linter::settings::types::UnsafeFixes;
@@ -102,7 +103,11 @@ impl Diagnostics {
                 let name = path.map_or_else(|| "-".into(), Path::to_string_lossy);
                 let dummy = SourceFileBuilder::new(name, "").finish();
                 Self::new(
-                    vec![Diagnostic::invalid_syntax(dummy, err, TextRange::default())],
+                    vec![create_syntax_error_diagnostic(
+                        dummy,
+                        err,
+                        TextRange::default(),
+                    )],
                     FxHashMap::default(),
                 )
             }

crates/ruff/tests/cli/main.rs

@@ -1,177 +0,0 @@
-//! Test fixture utilities for ruff CLI tests
-//!
-//! The core concept is borrowed from ty/tests/cli/main.rs and can be extended
-//! with more functionality from there in the future if needed.
-
-#![cfg(not(target_family = "wasm"))]
-
-use anyhow::{Context as _, Result};
-use insta::internals::SettingsBindDropGuard;
-use insta_cmd::get_cargo_bin;
-use std::{
-    fs,
-    path::{Path, PathBuf},
-    process::Command,
-};
-use tempfile::TempDir;
-
-mod lint;
-
-const BIN_NAME: &str = "ruff";
-
-/// Creates a regex filter for replacing temporary directory paths in snapshots
-pub(crate) fn tempdir_filter(path: impl AsRef<str>) -> String {
-    format!(r"{}[\\/]?", regex::escape(path.as_ref()))
-}
-
-/// A test fixture for running ruff CLI tests with temporary directories and files.
-///
-/// This fixture provides:
-/// - Temporary directory management
-/// - File creation utilities
-/// - Proper snapshot filtering for cross-platform compatibility
-/// - Pre-configured ruff command creation
-///
-/// # Example
-///
-/// ```rust,no_run
-/// use crate::common::RuffTestFixture;
-///
-/// let fixture = RuffTestFixture::with_file("ruff.toml", "select = ['E']")?;
-/// let output = fixture.command().args(["check", "."]).output()?;
-/// ```
-pub(crate) struct CliTest {
-    _temp_dir: TempDir,
-    _settings_scope: SettingsBindDropGuard,
-    project_dir: PathBuf,
-}
-
-impl CliTest {
-    /// Creates a new test fixture with an empty temporary directory.
-    ///
-    /// This sets up:
-    /// - A temporary directory that's automatically cleaned up
-    /// - Insta snapshot filters for cross-platform path compatibility
-    /// - Environment isolation for consistent test behavior
-    pub(crate) fn new() -> Result<Self> {
-        Self::with_settings(|_, settings| settings)
-    }
-
-    pub(crate) fn with_settings(
-        setup_settings: impl FnOnce(&Path, insta::Settings) -> insta::Settings,
-    ) -> Result<Self> {
-        let temp_dir = TempDir::new()?;
-
-        // Canonicalize the tempdir path because macOS uses symlinks for tempdirs
-        // and that doesn't play well with our snapshot filtering.
-        // Simplify with dunce because otherwise we get UNC paths on Windows.
-        let project_dir = dunce::simplified(
-            &temp_dir
-                .path()
-                .canonicalize()
-                .context("Failed to canonicalize project path")?,
-        )
-        .to_path_buf();
-
-        let mut settings = setup_settings(&project_dir, insta::Settings::clone_current());
-
-        settings.add_filter(&tempdir_filter(project_dir.to_str().unwrap()), "[TMP]/");
-        settings.add_filter(r#"\\([\w&&[^nr"]]\w|\s|\.)"#, "/$1");
-        settings.add_filter(r"(Panicked at) [^:]+:\d+:\d+", "$1 <location>");
-        settings.add_filter(ruff_linter::VERSION, "[VERSION]");
-        settings.add_filter(
-            r#"The system cannot find the file specified."#,
-            "No such file or directory",
-        );
-
-        let settings_scope = settings.bind_to_scope();
-
-        Ok(Self {
-            project_dir,
-            _temp_dir: temp_dir,
-            _settings_scope: settings_scope,
-        })
-    }
-
-    /// Creates a test fixture with a single file.
-    ///
-    /// # Arguments
-    ///
-    /// * `path` - The relative path for the file
-    /// * `content` - The content to write to the file
-    ///
-    /// # Example
-    ///
-    /// ```rust,no_run
-    /// let fixture = RuffTestFixture::with_file("ruff.toml", "select = ['E']")?;
-    /// ```
-    pub(crate) fn with_file(path: impl AsRef<Path>, content: &str) -> Result<Self> {
-        let fixture = Self::new()?;
-        fixture.write_file(path, content)?;
-        Ok(fixture)
-    }
-
-    /// Ensures that the parent directory of a path exists.
-    fn ensure_parent_directory(path: &Path) -> Result<()> {
-        if let Some(parent) = path.parent() {
-            fs::create_dir_all(parent)
-                .with_context(|| format!("Failed to create directory `{}`", parent.display()))?;
-        }
-        Ok(())
-    }
-
-    /// Writes a file to the test directory.
-    ///
-    /// Parent directories are created automatically if they don't exist.
-    /// Content is dedented to remove common leading whitespace for cleaner test code.
-    ///
-    /// # Arguments
-    ///
-    /// * `path` - The relative path for the file
-    /// * `content` - The content to write to the file
-    pub(crate) fn write_file(&self, path: impl AsRef<Path>, content: &str) -> Result<()> {
-        let path = path.as_ref();
-        let file_path = self.project_dir.join(path);
-
-        Self::ensure_parent_directory(&file_path)?;
-
-        let content = ruff_python_trivia::textwrap::dedent(content);
-        fs::write(&file_path, content.as_ref())
-            .with_context(|| format!("Failed to write file `{}`", file_path.display()))?;
-
-        Ok(())
-    }
-
-    /// Returns the path to the test directory root.
-    pub(crate) fn root(&self) -> &Path {
-        &self.project_dir
-    }
-
-    /// Creates a pre-configured ruff command for testing.
-    ///
-    /// The command is set up with:
-    /// - The correct ruff binary path
-    /// - Working directory set to the test directory
-    /// - Clean environment variables for consistent behavior
-    ///
-    /// You can chain additional arguments and options as needed.
-    ///
-    /// # Example
-    ///
-    /// ```rust,no_run
-    /// let output = fixture
-    ///     .command()
-    ///     .args(["check", "--select", "E"])
-    ///     .arg(".")
-    ///     .output()?;
-    /// ```
-    pub(crate) fn command(&self) -> Command {
-        let mut command = Command::new(get_cargo_bin(BIN_NAME));
-        command.current_dir(&self.project_dir);
-
-        // Unset all environment variables because they can affect test behavior.
-        command.env_clear();
-
-        command
-    }
-}

crates/ruff/tests/cli/snapshots/cli__lint__requires_python_extend_from_shared_config.snap

@@ -1,288 +0,0 @@
----
-source: crates/ruff/tests/cli/lint.rs
-info:
-  program: ruff
-  args:
-    - check
-    - "--no-cache"
-    - "--output-format"
-    - concise
-    - "--show-settings"
-    - test.py
-snapshot_kind: text
----
-success: true
-exit_code: 0
------ stdout -----
-Resolved settings for: "[TMP]/test.py"
-Settings path: "[TMP]/ruff.toml"
-
-# General Settings
-cache_dir = "[TMP]/.ruff_cache"
-fix = false
-fix_only = false
-output_format = concise
-show_fixes = false
-unsafe_fixes = hint
-
-# File Resolver Settings
-file_resolver.exclude = [
-	".bzr",
-	".direnv",
-	".eggs",
-	".git",
-	".git-rewrite",
-	".hg",
-	".ipynb_checkpoints",
-	".mypy_cache",
-	".nox",
-	".pants.d",
-	".pyenv",
-	".pytest_cache",
-	".pytype",
-	".ruff_cache",
-	".svn",
-	".tox",
-	".venv",
-	".vscode",
-	"__pypackages__",
-	"_build",
-	"buck-out",
-	"dist",
-	"node_modules",
-	"site-packages",
-	"venv",
-]
-file_resolver.extend_exclude = []
-file_resolver.force_exclude = false
-file_resolver.include = [
-	"*.py",
-	"*.pyi",
-	"*.ipynb",
-	"**/pyproject.toml",
-]
-file_resolver.extend_include = []
-file_resolver.respect_gitignore = true
-file_resolver.project_root = "[TMP]/"
-
-# Linter Settings
-linter.exclude = []
-linter.project_root = "[TMP]/"
-linter.rules.enabled = [
-	non-pep604-annotation-union (UP007),
-]
-linter.rules.should_fix = [
-	non-pep604-annotation-union (UP007),
-]
-linter.per_file_ignores = {}
-linter.safety_table.forced_safe = []
-linter.safety_table.forced_unsafe = []
-linter.unresolved_target_version = 3.10
-linter.per_file_target_version = {}
-linter.preview = disabled
-linter.explicit_preview_rules = false
-linter.extension = ExtensionMapping({})
-linter.allowed_confusables = []
-linter.builtins = []
-linter.dummy_variable_rgx = ^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$
-linter.external = []
-linter.ignore_init_module_imports = true
-linter.logger_objects = []
-linter.namespace_packages = []
-linter.src = [
-	"[TMP]/",
-	"[TMP]/src",
-]
-linter.tab_size = 4
-linter.line_length = 88
-linter.task_tags = [
-	TODO,
-	FIXME,
-	XXX,
-]
-linter.typing_modules = []
-linter.typing_extensions = true
-
-# Linter Plugins
-linter.flake8_annotations.mypy_init_return = false
-linter.flake8_annotations.suppress_dummy_args = false
-linter.flake8_annotations.suppress_none_returning = false
-linter.flake8_annotations.allow_star_arg_any = false
-linter.flake8_annotations.ignore_fully_untyped = false
-linter.flake8_bandit.hardcoded_tmp_directory = [
-	/tmp,
-	/var/tmp,
-	/dev/shm,
-]
-linter.flake8_bandit.check_typed_exception = false
-linter.flake8_bandit.extend_markup_names = []
-linter.flake8_bandit.allowed_markup_calls = []
-linter.flake8_bugbear.extend_immutable_calls = []
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-linter.flake8_copyright.notice_rgx = (?i)Copyright\s+((?:\(C\)|©)\s+)?\d{4}((-|,\s)\d{4})*
-linter.flake8_copyright.author = none
-linter.flake8_copyright.min_file_size = 0
-linter.flake8_errmsg.max_string_length = 0
-linter.flake8_gettext.functions_names = [
-	_,
-	gettext,
-	ngettext,
-]
-linter.flake8_implicit_str_concat.allow_multiline = true
-linter.flake8_import_conventions.aliases = {
-	altair = alt,
-	holoviews = hv,
-	matplotlib = mpl,
-	matplotlib.pyplot = plt,
-	networkx = nx,
-	numpy = np,
-	numpy.typing = npt,
-	pandas = pd,
-	panel = pn,
-	plotly.express = px,
-	polars = pl,
-	pyarrow = pa,
-	seaborn = sns,
-	tensorflow = tf,
-	tkinter = tk,
-	xml.etree.ElementTree = ET,
-}
-linter.flake8_import_conventions.banned_aliases = {}
-linter.flake8_import_conventions.banned_from = []
-linter.flake8_pytest_style.fixture_parentheses = false
-linter.flake8_pytest_style.parametrize_names_type = tuple
-linter.flake8_pytest_style.parametrize_values_type = list
-linter.flake8_pytest_style.parametrize_values_row_type = tuple
-linter.flake8_pytest_style.raises_require_match_for = [
-	BaseException,
-	Exception,
-	ValueError,
-	OSError,
-	IOError,
-	EnvironmentError,
-	socket.error,
-]
-linter.flake8_pytest_style.raises_extend_require_match_for = []
-linter.flake8_pytest_style.mark_parentheses = false
-linter.flake8_quotes.inline_quotes = double
-linter.flake8_quotes.multiline_quotes = double
-linter.flake8_quotes.docstring_quotes = double
-linter.flake8_quotes.avoid_escape = true
-linter.flake8_self.ignore_names = [
-	_make,
-	_asdict,
-	_replace,
-	_fields,
-	_field_defaults,
-	_name_,
-	_value_,
-]
-linter.flake8_tidy_imports.ban_relative_imports = "parents"
-linter.flake8_tidy_imports.banned_api = {}
-linter.flake8_tidy_imports.banned_module_level_imports = []
-linter.flake8_type_checking.strict = false
-linter.flake8_type_checking.exempt_modules = [
-	typing,
-	typing_extensions,
-]
-linter.flake8_type_checking.runtime_required_base_classes = []
-linter.flake8_type_checking.runtime_required_decorators = []
-linter.flake8_type_checking.quote_annotations = false
-linter.flake8_unused_arguments.ignore_variadic_names = false
-linter.isort.required_imports = []
-linter.isort.combine_as_imports = false
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-linter.isort.single_line_exclusions = []
-linter.isort.split_on_trailing_comma = true
-linter.isort.classes = []
-linter.isort.constants = []
-linter.isort.variables = []
-linter.isort.no_lines_before = []
-linter.isort.lines_after_imports = -1
-linter.isort.lines_between_types = 0
-linter.isort.forced_separate = []
-linter.isort.section_order = [
-	known { type = future },
-	known { type = standard_library },
-	known { type = third_party },
-	known { type = first_party },
-	known { type = local_folder },
-]
-linter.isort.default_section = known { type = third_party }
-linter.isort.no_sections = false
-linter.isort.from_first = false
-linter.isort.length_sort = false
-linter.isort.length_sort_straight = false
-linter.mccabe.max_complexity = 10
-linter.pep8_naming.ignore_names = [
-	setUp,
-	tearDown,
-	setUpClass,
-	tearDownClass,
-	setUpModule,
-	tearDownModule,
-	asyncSetUp,
-	asyncTearDown,
-	setUpTestData,
-	failureException,
-	longMessage,
-	maxDiff,
-]
-linter.pep8_naming.classmethod_decorators = []
-linter.pep8_naming.staticmethod_decorators = []
-linter.pycodestyle.max_line_length = 88
-linter.pycodestyle.max_doc_length = none
-linter.pycodestyle.ignore_overlong_task_comments = false
-linter.pyflakes.extend_generics = []
-linter.pyflakes.allowed_unused_imports = []
-linter.pylint.allow_magic_value_types = [
-	str,
-	bytes,
-]
-linter.pylint.allow_dunder_method_names = []
-linter.pylint.max_args = 5
-linter.pylint.max_positional_args = 5
-linter.pylint.max_returns = 6
-linter.pylint.max_bool_expr = 5
-linter.pylint.max_branches = 12
-linter.pylint.max_statements = 50
-linter.pylint.max_public_methods = 20
-linter.pylint.max_locals = 15
-linter.pylint.max_nested_blocks = 5
-linter.pyupgrade.keep_runtime_typing = false
-linter.ruff.parenthesize_tuple_in_subscript = false
-
-# Formatter Settings
-formatter.exclude = []
-formatter.unresolved_target_version = 3.10
-formatter.per_file_target_version = {}
-formatter.preview = disabled
-formatter.line_width = 88
-formatter.line_ending = auto
-formatter.indent_style = space
-formatter.indent_width = 4
-formatter.quote_style = double
-formatter.magic_trailing_comma = respect
-formatter.docstring_code_format = disabled
-formatter.docstring_code_line_width = dynamic
-
-# Analyze Settings
-analyze.exclude = []
-analyze.preview = disabled
-analyze.target_version = 3.10
-analyze.string_imports = disabled
-analyze.extension = ExtensionMapping({})
-analyze.include_dependencies = {}
-
------ stderr -----

crates/ruff/tests/cli/snapshots/cli__lint__requires_python_no_tool.snap

@@ -1,290 +0,0 @@
----
-source: crates/ruff/tests/cli/lint.rs
-info:
-  program: ruff
-  args:
-    - check
-    - "--no-cache"
-    - "--output-format"
-    - concise
-    - "--show-settings"
-    - "--select"
-    - UP007
-    - test.py
-    - "-"
-snapshot_kind: text
----
-success: true
-exit_code: 0
------ stdout -----
-Resolved settings for: "[TMP]/test.py"
-
-# General Settings
-cache_dir = "[TMP]/.ruff_cache"
-fix = false
-fix_only = false
-output_format = concise
-show_fixes = false
-unsafe_fixes = hint
-
-# File Resolver Settings
-file_resolver.exclude = [
-	".bzr",
-	".direnv",
-	".eggs",
-	".git",
-	".git-rewrite",
-	".hg",
-	".ipynb_checkpoints",
-	".mypy_cache",
-	".nox",
-	".pants.d",
-	".pyenv",
-	".pytest_cache",
-	".pytype",
-	".ruff_cache",
-	".svn",
-	".tox",
-	".venv",
-	".vscode",
-	"__pypackages__",
-	"_build",
-	"buck-out",
-	"dist",
-	"node_modules",
-	"site-packages",
-	"venv",
-]
-file_resolver.extend_exclude = []
-file_resolver.force_exclude = false
-file_resolver.include = [
-	"*.py",
-	"*.pyi",
-	"*.ipynb",
-	"**/pyproject.toml",
-]
-file_resolver.extend_include = []
-file_resolver.respect_gitignore = true
-file_resolver.project_root = "[TMP]/"
-
-# Linter Settings
-linter.exclude = []
-linter.project_root = "[TMP]/"
-linter.rules.enabled = [
-	non-pep604-annotation-union (UP007),
-]
-linter.rules.should_fix = [
-	non-pep604-annotation-union (UP007),
-]
-linter.per_file_ignores = {}
-linter.safety_table.forced_safe = []
-linter.safety_table.forced_unsafe = []
-linter.unresolved_target_version = 3.11
-linter.per_file_target_version = {}
-linter.preview = disabled
-linter.explicit_preview_rules = false
-linter.extension = ExtensionMapping({})
-linter.allowed_confusables = []
-linter.builtins = []
-linter.dummy_variable_rgx = ^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$
-linter.external = []
-linter.ignore_init_module_imports = true
-linter.logger_objects = []
-linter.namespace_packages = []
-linter.src = [
-	"[TMP]/",
-	"[TMP]/src",
-]
-linter.tab_size = 4
-linter.line_length = 88
-linter.task_tags = [
-	TODO,
-	FIXME,
-	XXX,
-]
-linter.typing_modules = []
-linter.typing_extensions = true
-
-# Linter Plugins
-linter.flake8_annotations.mypy_init_return = false
-linter.flake8_annotations.suppress_dummy_args = false
-linter.flake8_annotations.suppress_none_returning = false
-linter.flake8_annotations.allow_star_arg_any = false
-linter.flake8_annotations.ignore_fully_untyped = false
-linter.flake8_bandit.hardcoded_tmp_directory = [
-	/tmp,
-	/var/tmp,
-	/dev/shm,
-]
-linter.flake8_bandit.check_typed_exception = false
-linter.flake8_bandit.extend_markup_names = []
-linter.flake8_bandit.allowed_markup_calls = []
-linter.flake8_bugbear.extend_immutable_calls = []
-linter.flake8_builtins.allowed_modules = []
-linter.flake8_builtins.ignorelist = []
-linter.flake8_builtins.strict_checking = false
-linter.flake8_comprehensions.allow_dict_calls_with_keyword_arguments = false
-linter.flake8_copyright.notice_rgx = (?i)Copyright\s+((?:\(C\)|©)\s+)?\d{4}((-|,\s)\d{4})*
-linter.flake8_copyright.author = none
-linter.flake8_copyright.min_file_size = 0
-linter.flake8_errmsg.max_string_length = 0
-linter.flake8_gettext.functions_names = [
-	_,
-	gettext,
-	ngettext,
-]
-linter.flake8_implicit_str_concat.allow_multiline = true
-linter.flake8_import_conventions.aliases = {
-	altair = alt,
-	holoviews = hv,
-	matplotlib = mpl,
-	matplotlib.pyplot = plt,
-	networkx = nx,
-	numpy = np,
-	numpy.typing = npt,
-	pandas = pd,
-	panel = pn,
-	plotly.express = px,
-	polars = pl,
-	pyarrow = pa,
-	seaborn = sns,
-	tensorflow = tf,
-	tkinter = tk,
-	xml.etree.ElementTree = ET,
-}
-linter.flake8_import_conventions.banned_aliases = {}
-linter.flake8_import_conventions.banned_from = []
-linter.flake8_pytest_style.fixture_parentheses = false
-linter.flake8_pytest_style.parametrize_names_type = tuple
-linter.flake8_pytest_style.parametrize_values_type = list
-linter.flake8_pytest_style.parametrize_values_row_type = tuple
-linter.flake8_pytest_style.raises_require_match_for = [
-	BaseException,
-	Exception,
-	ValueError,
-	OSError,
-	IOError,
-	EnvironmentError,
-	socket.error,
-]
-linter.flake8_pytest_style.raises_extend_require_match_for = []
-linter.flake8_pytest_style.mark_parentheses = false
-linter.flake8_quotes.inline_quotes = double
-linter.flake8_quotes.multiline_quotes = double
-linter.flake8_quotes.docstring_quotes = double
-linter.flake8_quotes.avoid_escape = true
-linter.flake8_self.ignore_names = [
-	_make,
-	_asdict,
-	_replace,
-	_fields,
-	_field_defaults,
-	_name_,
-	_value_,
-]
-linter.flake8_tidy_imports.ban_relative_imports = "parents"
-linter.flake8_tidy_imports.banned_api = {}
-linter.flake8_tidy_imports.banned_module_level_imports = []
-linter.flake8_type_checking.strict = false
-linter.flake8_type_checking.exempt_modules = [
-	typing,
-	typing_extensions,
-]
-linter.flake8_type_checking.runtime_required_base_classes = []
-linter.flake8_type_checking.runtime_required_decorators = []
-linter.flake8_type_checking.quote_annotations = false
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-linter.isort.required_imports = []
-linter.isort.combine_as_imports = false
-linter.isort.force_single_line = false
-linter.isort.force_sort_within_sections = false
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-linter.isort.relative_imports_order = furthest_to_closest
-linter.isort.single_line_exclusions = []
-linter.isort.split_on_trailing_comma = true
-linter.isort.classes = []
-linter.isort.constants = []
-linter.isort.variables = []
-linter.isort.no_lines_before = []
-linter.isort.lines_after_imports = -1
-linter.isort.lines_between_types = 0
-linter.isort.forced_separate = []
-linter.isort.section_order = [
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-	known { type = standard_library },
-	known { type = third_party },
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-	known { type = local_folder },
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-linter.isort.length_sort = false
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-linter.mccabe.max_complexity = 10
-linter.pep8_naming.ignore_names = [
-	setUp,
-	tearDown,
-	setUpClass,
-	tearDownClass,
-	setUpModule,
-	tearDownModule,
-	asyncSetUp,
-	asyncTearDown,
-	setUpTestData,
-	failureException,
-	longMessage,
-	maxDiff,
-]
-linter.pep8_naming.classmethod_decorators = []
-linter.pep8_naming.staticmethod_decorators = []
-linter.pycodestyle.max_line_length = 88
-linter.pycodestyle.max_doc_length = none
-linter.pycodestyle.ignore_overlong_task_comments = false
-linter.pyflakes.extend_generics = []
-linter.pyflakes.allowed_unused_imports = []
-linter.pylint.allow_magic_value_types = [
-	str,
-	bytes,
-]
-linter.pylint.allow_dunder_method_names = []
-linter.pylint.max_args = 5
-linter.pylint.max_positional_args = 5
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-linter.pylint.max_locals = 15
-linter.pylint.max_nested_blocks = 5
-linter.pyupgrade.keep_runtime_typing = false
-linter.ruff.parenthesize_tuple_in_subscript = false
-
-# Formatter Settings
-formatter.exclude = []
-formatter.unresolved_target_version = 3.11
-formatter.per_file_target_version = {}
-formatter.preview = disabled
-formatter.line_width = 88
-formatter.line_ending = auto
-formatter.indent_style = space
-formatter.indent_width = 4
-formatter.quote_style = double
-formatter.magic_trailing_comma = respect
-formatter.docstring_code_format = disabled
-formatter.docstring_code_line_width = dynamic
-
-# Analyze Settings
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-analyze.preview = disabled
-analyze.target_version = 3.11
-analyze.string_imports = disabled
-analyze.extension = ExtensionMapping({})
-analyze.include_dependencies = {}
-
------ stderr -----

crates/ruff/tests/cli/snapshots/cli__lint__requires_python_no_tool_preview_enabled.snap

@@ -1,292 +0,0 @@
----
-source: crates/ruff/tests/cli/lint.rs
-info:
-  program: ruff
-  args:
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-    - "--no-cache"
-    - "--output-format"
-    - concise
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-    - "--show-settings"
-    - "--select"
-    - UP007
-    - test.py
-    - "-"
-snapshot_kind: text
----
-success: true
-exit_code: 0
------ stdout -----
-Resolved settings for: "[TMP]/test.py"
-
-# General Settings
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-# Linter Settings
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-# Formatter Settings
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-
------ stderr -----

crates/ruff/tests/cli/snapshots/cli__lint__requires_python_no_tool_target_version_override.snap

@@ -1,292 +0,0 @@
----
-source: crates/ruff/tests/cli/lint.rs
-info:
-  program: ruff
-  args:
-    - check
-    - "--no-cache"
-    - "--output-format"
-    - concise
-    - "--show-settings"
-    - "--select"
-    - UP007
-    - "--target-version"
-    - py310
-    - test.py
-    - "-"
-snapshot_kind: text
----
-success: true
-exit_code: 0
------ stdout -----
-Resolved settings for: "[TMP]/test.py"
-
-# General Settings
-cache_dir = "[TMP]/.ruff_cache"
-fix = false
-fix_only = false
-output_format = concise
-show_fixes = false
-unsafe_fixes = hint
-
-# File Resolver Settings
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-	".bzr",
-	".direnv",
-	".eggs",
-	".git",
-	".git-rewrite",
-	".hg",
-	".ipynb_checkpoints",
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-	".pytest_cache",
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-	"*.pyi",
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-	"**/pyproject.toml",
-]
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-file_resolver.project_root = "[TMP]/"
-
-# Linter Settings
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-linter.project_root = "[TMP]/"
-linter.rules.enabled = [
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-
-# Linter Plugins
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-	numpy = np,
-	numpy.typing = npt,
-	pandas = pd,
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-
-# Formatter Settings
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-
-# Analyze Settings
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-analyze.target_version = 3.10
-analyze.string_imports = disabled
-analyze.extension = ExtensionMapping({})
-analyze.include_dependencies = {}
-
------ stderr -----

crates/ruff/tests/cli/snapshots/cli__lint__requires_python_pyproject_toml_above.snap

@@ -1,289 +0,0 @@
----
-source: crates/ruff/tests/cli/lint.rs
-info:
-  program: ruff
-  args:
-    - check
-    - "--no-cache"
-    - "--output-format"
-    - concise
-    - "--show-settings"
-    - "--select"
-    - UP007
-    - foo/test.py
-snapshot_kind: text
----
-success: true
-exit_code: 0
------ stdout -----
-Resolved settings for: "[TMP]/foo/test.py"
-
-# General Settings
-cache_dir = "[TMP]/.ruff_cache"
-fix = false
-fix_only = false
-output_format = concise
-show_fixes = false
-unsafe_fixes = hint
-
-# File Resolver Settings
-file_resolver.exclude = [
-	".bzr",
-	".direnv",
-	".eggs",
-	".git",
-	".git-rewrite",
-	".hg",
-	".ipynb_checkpoints",
-	".mypy_cache",
-	".nox",
-	".pants.d",
-	".pyenv",
-	".pytest_cache",
-	".pytype",
-	".ruff_cache",
-	".svn",
-	".tox",
-	".venv",
-	".vscode",
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-	"*.pyi",
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-	"**/pyproject.toml",
-]
-file_resolver.extend_include = []
-file_resolver.respect_gitignore = true
-file_resolver.project_root = "[TMP]/"
-
-# Linter Settings
-linter.exclude = []
-linter.project_root = "[TMP]/"
-linter.rules.enabled = [
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-
------ stderr -----

crates/ruff/tests/cli/snapshots/cli__lint__requires_python_pyproject_toml_above_with_tool.snap

@@ -1,289 +0,0 @@
----
-source: crates/ruff/tests/cli/lint.rs
-info:
-  program: ruff
-  args:
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-    - "--no-cache"
-    - "--output-format"
-    - concise
-    - "--show-settings"
-    - "--select"
-    - UP007
-    - foo/test.py
-snapshot_kind: text
----
-success: true
-exit_code: 0
------ stdout -----
-Resolved settings for: "[TMP]/foo/test.py"
-
-# General Settings
-cache_dir = "[TMP]/foo/.ruff_cache"
-fix = false
-fix_only = false
-output_format = concise
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-
-# File Resolver Settings
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-	".direnv",
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-
-# Linter Settings
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-
-# Formatter Settings
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-# Analyze Settings
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-
------ stderr -----

crates/ruff/tests/cli/snapshots/cli__lint__requires_python_ruff_toml_above-2.snap

@@ -1,287 +0,0 @@
----
-source: crates/ruff/tests/cli/lint.rs
-info:
-  program: ruff
-  args:
-    - check
-    - "--no-cache"
-    - "--output-format"
-    - concise
-    - "--show-settings"
-    - test.py
----
-success: true
-exit_code: 0
------ stdout -----
-Resolved settings for: "[TMP]/foo/test.py"
-Settings path: "[TMP]/ruff.toml"
-
-# General Settings
-cache_dir = "[TMP]/.ruff_cache"
-fix = false
-fix_only = false
-output_format = concise
-show_fixes = false
-unsafe_fixes = hint
-
-# File Resolver Settings
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-	".direnv",
-	".eggs",
-	".git",
-	".git-rewrite",
-	".hg",
-	".ipynb_checkpoints",
-	".mypy_cache",
-	".nox",
-	".pants.d",
-	".pyenv",
-	".pytest_cache",
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-	".ruff_cache",
-	".svn",
-	".tox",
-	".venv",
-	".vscode",
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-
-# Linter Settings
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-# Linter Plugins
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-	bytes,
-]
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-# Formatter Settings
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-
-# Analyze Settings
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-analyze.string_imports = disabled
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-analyze.include_dependencies = {}
-
------ stderr -----

crates/ruff/tests/cli/snapshots/cli__lint__requires_python_ruff_toml_above.snap

@@ -1,287 +0,0 @@
----
-source: crates/ruff/tests/cli/lint.rs
-info:
-  program: ruff
-  args:
-    - check
-    - "--no-cache"
-    - "--output-format"
-    - concise
-    - "--show-settings"
-    - foo/test.py
----
-success: true
-exit_code: 0
------ stdout -----
-Resolved settings for: "[TMP]/foo/test.py"
-Settings path: "[TMP]/ruff.toml"
-
-# General Settings
-cache_dir = "[TMP]/.ruff_cache"
-fix = false
-fix_only = false
-output_format = concise
-show_fixes = false
-unsafe_fixes = hint
-
-# File Resolver Settings
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-	".direnv",
-	".eggs",
-	".git",
-	".git-rewrite",
-	".hg",
-	".ipynb_checkpoints",
-	".mypy_cache",
-	".nox",
-	".pants.d",
-	".pyenv",
-	".pytest_cache",
-	".pytype",
-	".ruff_cache",
-	".svn",
-	".tox",
-	".venv",
-	".vscode",
-	"__pypackages__",
-	"_build",
-	"buck-out",
-	"dist",
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-	"*.pyi",
-	"*.ipynb",
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-
-# Linter Settings
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-linter.rules.enabled = [
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-	FIXME,
-	XXX,
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-
-# Linter Plugins
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-	bytes,
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-linter.pyupgrade.keep_runtime_typing = false
-linter.ruff.parenthesize_tuple_in_subscript = false
-
-# Formatter Settings
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-formatter.line_width = 88
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-formatter.indent_width = 4
-formatter.quote_style = double
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-
-# Analyze Settings
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-analyze.target_version = 3.10
-analyze.string_imports = disabled
-analyze.extension = ExtensionMapping({})
-analyze.include_dependencies = {}
-
------ stderr -----

crates/ruff/tests/cli/snapshots/cli__lint__requires_python_ruff_toml_no_target_fallback.snap

@@ -1,288 +0,0 @@
----
-source: crates/ruff/tests/cli/lint.rs
-info:
-  program: ruff
-  args:
-    - check
-    - "--no-cache"
-    - "--output-format"
-    - concise
-    - test.py
-    - "--show-settings"
-snapshot_kind: text
----
-success: true
-exit_code: 0
------ stdout -----
-Resolved settings for: "[TMP]/test.py"
-Settings path: "[TMP]/ruff.toml"
-
-# General Settings
-cache_dir = "[TMP]/.ruff_cache"
-fix = false
-fix_only = false
-output_format = concise
-show_fixes = false
-unsafe_fixes = hint
-
-# File Resolver Settings
-file_resolver.exclude = [
-	".bzr",
-	".direnv",
-	".eggs",
-	".git",
-	".git-rewrite",
-	".hg",
-	".ipynb_checkpoints",
-	".mypy_cache",
-	".nox",
-	".pants.d",
-	".pyenv",
-	".pytest_cache",
-	".pytype",
-	".ruff_cache",
-	".svn",
-	".tox",
-	".venv",
-	".vscode",
-	"__pypackages__",
-	"_build",
-	"buck-out",
-	"dist",
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-	"*.pyi",
-	"*.ipynb",
-	"**/pyproject.toml",
-]
-file_resolver.extend_include = []
-file_resolver.respect_gitignore = true
-file_resolver.project_root = "[TMP]/"
-
-# Linter Settings
-linter.exclude = []
-linter.project_root = "[TMP]/"
-linter.rules.enabled = [
-	non-pep604-annotation-union (UP007),
-]
-linter.rules.should_fix = [
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-	TODO,
-	FIXME,
-	XXX,
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-
-# Linter Plugins
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-linter.flake8_annotations.allow_star_arg_any = false
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-	known { type = standard_library },
-	known { type = third_party },
-	known { type = first_party },
-	known { type = local_folder },
-]
-linter.isort.default_section = known { type = third_party }
-linter.isort.no_sections = false
-linter.isort.from_first = false
-linter.isort.length_sort = false
-linter.isort.length_sort_straight = false
-linter.mccabe.max_complexity = 10
-linter.pep8_naming.ignore_names = [
-	setUp,
-	tearDown,
-	setUpClass,
-	tearDownClass,
-	setUpModule,
-	tearDownModule,
-	asyncSetUp,
-	asyncTearDown,
-	setUpTestData,
-	failureException,
-	longMessage,
-	maxDiff,
-]
-linter.pep8_naming.classmethod_decorators = []
-linter.pep8_naming.staticmethod_decorators = []
-linter.pycodestyle.max_line_length = 88
-linter.pycodestyle.max_doc_length = none
-linter.pycodestyle.ignore_overlong_task_comments = false
-linter.pyflakes.extend_generics = []
-linter.pyflakes.allowed_unused_imports = []
-linter.pylint.allow_magic_value_types = [
-	str,
-	bytes,
-]
-linter.pylint.allow_dunder_method_names = []
-linter.pylint.max_args = 5
-linter.pylint.max_positional_args = 5
-linter.pylint.max_returns = 6
-linter.pylint.max_bool_expr = 5
-linter.pylint.max_branches = 12
-linter.pylint.max_statements = 50
-linter.pylint.max_public_methods = 20
-linter.pylint.max_locals = 15
-linter.pylint.max_nested_blocks = 5
-linter.pyupgrade.keep_runtime_typing = false
-linter.ruff.parenthesize_tuple_in_subscript = false
-
-# Formatter Settings
-formatter.exclude = []
-formatter.unresolved_target_version = 3.11
-formatter.per_file_target_version = {}
-formatter.preview = disabled
-formatter.line_width = 88
-formatter.line_ending = auto
-formatter.indent_style = space
-formatter.indent_width = 4
-formatter.quote_style = double
-formatter.magic_trailing_comma = respect
-formatter.docstring_code_format = disabled
-formatter.docstring_code_line_width = dynamic
-
-# Analyze Settings
-analyze.exclude = []
-analyze.preview = disabled
-analyze.target_version = 3.11
-analyze.string_imports = disabled
-analyze.extension = ExtensionMapping({})
-analyze.include_dependencies = {}
-
------ stderr -----

crates/ruff/tests/snapshots/lint__output_format_sarif.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/lint.rs
+source: crates/ruff/tests/lint.rs
 info:
   program: ruff
   args:
@@ -12,7 +12,6 @@ info:
     - "--target-version"
     - py39
     - input.py
-snapshot_kind: text
 ---
 success: false
 exit_code: 1

crates/ruff_benchmark/benches/ty.rs

@@ -599,7 +599,7 @@ impl<'a> ProjectBenchmark<'a> {
             self.project
                 .check_paths()
                 .iter()
-                .map(|path| SystemPathBuf::from(*path))
+                .map(|path| path.to_path_buf())
                 .collect(),
         );
 
@@ -645,8 +645,8 @@ fn hydra(criterion: &mut Criterion) {
             name: "hydra-zen",
             repository: "https://github.com/mit-ll-responsible-ai/hydra-zen",
             commit: "dd2b50a9614c6f8c46c5866f283c8f7e7a960aa8",
-            paths: &["src"],
-            dependencies: &["pydantic", "beartype", "hydra-core"],
+            paths: vec![SystemPath::new("src")],
+            dependencies: vec!["pydantic", "beartype", "hydra-core"],
             max_dep_date: "2025-06-17",
             python_version: PythonVersion::PY313,
         },
@@ -662,8 +662,8 @@ fn attrs(criterion: &mut Criterion) {
             name: "attrs",
             repository: "https://github.com/python-attrs/attrs",
             commit: "a6ae894aad9bc09edc7cdad8c416898784ceec9b",
-            paths: &["src"],
-            dependencies: &[],
+            paths: vec![SystemPath::new("src")],
+            dependencies: vec![],
             max_dep_date: "2025-06-17",
             python_version: PythonVersion::PY313,
         },
@@ -679,8 +679,8 @@ fn anyio(criterion: &mut Criterion) {
             name: "anyio",
             repository: "https://github.com/agronholm/anyio",
             commit: "561d81270a12f7c6bbafb5bc5fad99a2a13f96be",
-            paths: &["src"],
-            dependencies: &[],
+            paths: vec![SystemPath::new("src")],
+            dependencies: vec![],
             max_dep_date: "2025-06-17",
             python_version: PythonVersion::PY313,
         },
@@ -696,8 +696,8 @@ fn datetype(criterion: &mut Criterion) {
             name: "DateType",
             repository: "https://github.com/glyph/DateType",
             commit: "57c9c93cf2468069f72945fc04bf27b64100dad8",
-            paths: &["src"],
-            dependencies: &[],
+            paths: vec![SystemPath::new("src")],
+            dependencies: vec![],
             max_dep_date: "2025-07-04",
             python_version: PythonVersion::PY313,
         },

crates/ruff_benchmark/benches/ty_walltime.rs

@@ -1,6 +1,7 @@
-use divan::{Bencher, bench};
 use std::fmt::{Display, Formatter};
 
+use divan::{Bencher, bench};
+
 use rayon::ThreadPoolBuilder;
 use ruff_benchmark::real_world_projects::{InstalledProject, RealWorldProject};
 use ruff_db::system::{OsSystem, SystemPath, SystemPathBuf};
@@ -12,39 +13,29 @@ use ty_project::metadata::value::{RangedValue, RelativePathBuf};
 use ty_project::{Db, ProjectDatabase, ProjectMetadata};
 
 struct Benchmark<'a> {
-    project: RealWorldProject<'a>,
-    installed_project: std::sync::OnceLock<InstalledProject<'a>>,
+    project: InstalledProject<'a>,
     max_diagnostics: usize,
 }
 
 impl<'a> Benchmark<'a> {
-    const fn new(project: RealWorldProject<'a>, max_diagnostics: usize) -> Self {
+    fn new(project: RealWorldProject<'a>, max_diagnostics: usize) -> Self {
+        let setup_project = project.setup().expect("Failed to setup project");
+
         Self {
-            project,
-            installed_project: std::sync::OnceLock::new(),
+            project: setup_project,
             max_diagnostics,
         }
     }
 
-    fn installed_project(&self) -> &InstalledProject<'a> {
-        self.installed_project.get_or_init(|| {
-            self.project
-                .clone()
-                .setup()
-                .expect("Failed to setup project")
-        })
-    }
-
     fn setup_iteration(&self) -> ProjectDatabase {
-        let installed_project = self.installed_project();
-        let root = SystemPathBuf::from_path_buf(installed_project.path.clone()).unwrap();
+        let root = SystemPathBuf::from_path_buf(self.project.path.clone()).unwrap();
         let system = OsSystem::new(&root);
 
         let mut metadata = ProjectMetadata::discover(&root, &system).unwrap();
 
         metadata.apply_options(Options {
             environment: Some(EnvironmentOptions {
-                python_version: Some(RangedValue::cli(installed_project.config.python_version)),
+                python_version: Some(RangedValue::cli(self.project.config.python_version)),
                 python: Some(RelativePathBuf::cli(SystemPath::new(".venv"))),
                 ..EnvironmentOptions::default()
             }),
@@ -55,7 +46,7 @@ impl<'a> Benchmark<'a> {
 
         db.project().set_included_paths(
             &mut db,
-            installed_project
+            self.project
                 .check_paths()
                 .iter()
                 .map(|path| SystemPath::absolute(path, &root))
@@ -67,7 +58,7 @@ impl<'a> Benchmark<'a> {
 
 impl Display for Benchmark<'_> {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        self.project.name.fmt(f)
+        f.write_str(self.project.config.name)
     }
 }
 
@@ -84,150 +75,166 @@ fn check_project(db: &ProjectDatabase, max_diagnostics: usize) {
     );
 }
 
-static ALTAIR: Benchmark = Benchmark::new(
-    RealWorldProject {
-        name: "altair",
-        repository: "https://github.com/vega/altair",
-        commit: "d1f4a1ef89006e5f6752ef1f6df4b7a509336fba",
-        paths: &["altair"],
-        dependencies: &[
-            "jinja2",
-            "narwhals",
-            "numpy",
-            "packaging",
-            "pandas-stubs",
-            "pyarrow-stubs",
-            "pytest",
-            "scipy-stubs",
-            "types-jsonschema",
-        ],
-        max_dep_date: "2025-06-17",
-        python_version: PythonVersion::PY312,
-    },
-    1000,
-);
+static ALTAIR: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "altair",
+            repository: "https://github.com/vega/altair",
+            commit: "d1f4a1ef89006e5f6752ef1f6df4b7a509336fba",
+            paths: vec![SystemPath::new("altair")],
+            dependencies: vec![
+                "jinja2",
+                "narwhals",
+                "numpy",
+                "packaging",
+                "pandas-stubs",
+                "pyarrow-stubs",
+                "pytest",
+                "scipy-stubs",
+                "types-jsonschema",
+            ],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY312,
+        },
+        1000,
+    )
+});
 
-static COLOUR_SCIENCE: Benchmark = Benchmark::new(
-    RealWorldProject {
-        name: "colour-science",
-        repository: "https://github.com/colour-science/colour",
-        commit: "a17e2335c29e7b6f08080aa4c93cfa9b61f84757",
-        paths: &["colour"],
-        dependencies: &[
-            "matplotlib",
-            "numpy",
-            "pandas-stubs",
-            "pytest",
-            "scipy-stubs",
-        ],
-        max_dep_date: "2025-06-17",
-        python_version: PythonVersion::PY310,
-    },
-    600,
-);
+static COLOUR_SCIENCE: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "colour-science",
+            repository: "https://github.com/colour-science/colour",
+            commit: "a17e2335c29e7b6f08080aa4c93cfa9b61f84757",
+            paths: vec![SystemPath::new("colour")],
+            dependencies: vec![
+                "matplotlib",
+                "numpy",
+                "pandas-stubs",
+                "pytest",
+                "scipy-stubs",
+            ],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY310,
+        },
+        600,
+    )
+});
 
-static FREQTRADE: Benchmark = Benchmark::new(
-    RealWorldProject {
-        name: "freqtrade",
-        repository: "https://github.com/freqtrade/freqtrade",
-        commit: "2d842ea129e56575852ee0c45383c8c3f706be19",
-        paths: &["freqtrade"],
-        dependencies: &[
-            "numpy",
-            "pandas-stubs",
-            "pydantic",
-            "sqlalchemy",
-            "types-cachetools",
-            "types-filelock",
-            "types-python-dateutil",
-            "types-requests",
-            "types-tabulate",
-        ],
-        max_dep_date: "2025-06-17",
-        python_version: PythonVersion::PY312,
-    },
-    400,
-);
+static FREQTRADE: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "freqtrade",
+            repository: "https://github.com/freqtrade/freqtrade",
+            commit: "2d842ea129e56575852ee0c45383c8c3f706be19",
+            paths: vec![SystemPath::new("freqtrade")],
+            dependencies: vec![
+                "numpy",
+                "pandas-stubs",
+                "pydantic",
+                "sqlalchemy",
+                "types-cachetools",
+                "types-filelock",
+                "types-python-dateutil",
+                "types-requests",
+                "types-tabulate",
+            ],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY312,
+        },
+        400,
+    )
+});
 
-static PANDAS: Benchmark = Benchmark::new(
-    RealWorldProject {
-        name: "pandas",
-        repository: "https://github.com/pandas-dev/pandas",
-        commit: "5909621e2267eb67943a95ef5e895e8484c53432",
-        paths: &["pandas"],
-        dependencies: &[
-            "numpy",
-            "types-python-dateutil",
-            "types-pytz",
-            "types-PyMySQL",
-            "types-setuptools",
-            "pytest",
-        ],
-        max_dep_date: "2025-06-17",
-        python_version: PythonVersion::PY312,
-    },
-    3000,
-);
+static PANDAS: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "pandas",
+            repository: "https://github.com/pandas-dev/pandas",
+            commit: "5909621e2267eb67943a95ef5e895e8484c53432",
+            paths: vec![SystemPath::new("pandas")],
+            dependencies: vec![
+                "numpy",
+                "types-python-dateutil",
+                "types-pytz",
+                "types-PyMySQL",
+                "types-setuptools",
+                "pytest",
+            ],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY312,
+        },
+        3000,
+    )
+});
 
-static PYDANTIC: Benchmark = Benchmark::new(
-    RealWorldProject {
-        name: "pydantic",
-        repository: "https://github.com/pydantic/pydantic",
-        commit: "0c4a22b64b23dfad27387750cf07487efc45eb05",
-        paths: &["pydantic"],
-        dependencies: &[
-            "annotated-types",
-            "pydantic-core",
-            "typing-extensions",
-            "typing-inspection",
-        ],
-        max_dep_date: "2025-06-17",
-        python_version: PythonVersion::PY39,
-    },
-    1000,
-);
+static PYDANTIC: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "pydantic",
+            repository: "https://github.com/pydantic/pydantic",
+            commit: "0c4a22b64b23dfad27387750cf07487efc45eb05",
+            paths: vec![SystemPath::new("pydantic")],
+            dependencies: vec![
+                "annotated-types",
+                "pydantic-core",
+                "typing-extensions",
+                "typing-inspection",
+            ],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY39,
+        },
+        1000,
+    )
+});
 
-static SYMPY: Benchmark = Benchmark::new(
-    RealWorldProject {
-        name: "sympy",
-        repository: "https://github.com/sympy/sympy",
-        commit: "22fc107a94eaabc4f6eb31470b39db65abb7a394",
-        paths: &["sympy"],
-        dependencies: &["mpmath"],
-        max_dep_date: "2025-06-17",
-        python_version: PythonVersion::PY312,
-    },
-    13000,
-);
+static SYMPY: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "sympy",
+            repository: "https://github.com/sympy/sympy",
+            commit: "22fc107a94eaabc4f6eb31470b39db65abb7a394",
+            paths: vec![SystemPath::new("sympy")],
+            dependencies: vec!["mpmath"],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY312,
+        },
+        13000,
+    )
+});
 
-static TANJUN: Benchmark = Benchmark::new(
-    RealWorldProject {
-        name: "tanjun",
-        repository: "https://github.com/FasterSpeeding/Tanjun",
-        commit: "69f40db188196bc59516b6c69849c2d85fbc2f4a",
-        paths: &["tanjun"],
-        dependencies: &["hikari", "alluka"],
-        max_dep_date: "2025-06-17",
-        python_version: PythonVersion::PY312,
-    },
-    100,
-);
+static TANJUN: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "tanjun",
+            repository: "https://github.com/FasterSpeeding/Tanjun",
+            commit: "69f40db188196bc59516b6c69849c2d85fbc2f4a",
+            paths: vec![SystemPath::new("tanjun")],
+            dependencies: vec!["hikari", "alluka"],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY312,
+        },
+        100,
+    )
+});
 
-static STATIC_FRAME: Benchmark = Benchmark::new(
-    RealWorldProject {
-        name: "static-frame",
-        repository: "https://github.com/static-frame/static-frame",
-        commit: "34962b41baca5e7f98f5a758d530bff02748a421",
-        paths: &["static_frame"],
-        // N.B. `arraykit` is installed as a dependency during mypy_primer runs,
-        // but it takes much longer to be installed in a Codspeed run than it does in a mypy_primer run
-        // (seems to be built from source on the Codspeed CI runners for some reason).
-        dependencies: &["numpy"],
-        max_dep_date: "2025-08-09",
-        python_version: PythonVersion::PY311,
-    },
-    630,
-);
+static STATIC_FRAME: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "static-frame",
+            repository: "https://github.com/static-frame/static-frame",
+            commit: "34962b41baca5e7f98f5a758d530bff02748a421",
+            paths: vec![SystemPath::new("static_frame")],
+            // N.B. `arraykit` is installed as a dependency during mypy_primer runs,
+            // but it takes much longer to be installed in a Codspeed run than it does in a mypy_primer run
+            // (seems to be built from source on the Codspeed CI runners for some reason).
+            dependencies: vec!["numpy"],
+            max_dep_date: "2025-08-09",
+            python_version: PythonVersion::PY311,
+        },
+        600,
+    )
+});
 
 #[track_caller]
 fn run_single_threaded(bencher: Bencher, benchmark: &Benchmark) {
@@ -238,22 +245,22 @@ fn run_single_threaded(bencher: Bencher, benchmark: &Benchmark) {
         });
 }
 
-#[bench(args=[&ALTAIR, &FREQTRADE, &PYDANTIC, &TANJUN], sample_size=2, sample_count=3)]
+#[bench(args=[&*ALTAIR, &*FREQTRADE, &*PYDANTIC, &*TANJUN], sample_size=2, sample_count=3)]
 fn small(bencher: Bencher, benchmark: &Benchmark) {
     run_single_threaded(bencher, benchmark);
 }
 
-#[bench(args=[&COLOUR_SCIENCE, &PANDAS, &STATIC_FRAME], sample_size=1, sample_count=3)]
+#[bench(args=[&*COLOUR_SCIENCE, &*PANDAS, &*STATIC_FRAME], sample_size=1, sample_count=3)]
 fn medium(bencher: Bencher, benchmark: &Benchmark) {
     run_single_threaded(bencher, benchmark);
 }
 
-#[bench(args=[&SYMPY], sample_size=1, sample_count=2)]
+#[bench(args=[&*SYMPY], sample_size=1, sample_count=2)]
 fn large(bencher: Bencher, benchmark: &Benchmark) {
     run_single_threaded(bencher, benchmark);
 }
 
-#[bench(args=[&PYDANTIC], sample_size=3, sample_count=8)]
+#[bench(args=[&*PYDANTIC], sample_size=3, sample_count=8)]
 fn multithreaded(bencher: Bencher, benchmark: &Benchmark) {
     let thread_pool = ThreadPoolBuilder::new().build().unwrap();
 

crates/ruff_benchmark/src/real_world_projects.rs

@@ -30,9 +30,9 @@ pub struct RealWorldProject<'a> {
     /// Specific commit hash to checkout
     pub commit: &'a str,
     /// List of paths within the project to check (`ty check <paths>`)
-    pub paths: &'a [&'a str],
+    pub paths: Vec<&'a SystemPath>,
     /// Dependencies to install via uv
-    pub dependencies: &'a [&'a str],
+    pub dependencies: Vec<&'a str>,
     /// Limit candidate packages to those that were uploaded prior to a given point in time (ISO 8601 format).
     /// Maps to uv's `exclude-newer`.
     pub max_dep_date: &'a str,
@@ -125,9 +125,9 @@ impl<'a> InstalledProject<'a> {
         &self.config
     }
 
-    /// Get the benchmark paths
-    pub fn check_paths(&self) -> &[&str] {
-        self.config.paths
+    /// Get the benchmark paths as `SystemPathBuf`
+    pub fn check_paths(&self) -> &[&SystemPath] {
+        &self.config.paths
     }
 
     /// Get the virtual environment path
@@ -297,7 +297,7 @@ fn install_dependencies(checkout: &Checkout) -> Result<()> {
         "--exclude-newer",
         checkout.project().max_dep_date,
     ])
-    .args(checkout.project().dependencies);
+    .args(&checkout.project().dependencies);
 
     let output = cmd
         .output()

crates/ruff_db/src/diagnostic/mod.rs

@@ -7,8 +7,7 @@ use ruff_annotate_snippets::Level as AnnotateLevel;
 use ruff_text_size::{Ranged, TextRange, TextSize};
 
 pub use self::render::{
-    DisplayDiagnostic, DisplayDiagnostics, DummyFileResolver, FileResolver, Input,
-    ceil_char_boundary,
+    DisplayDiagnostic, DisplayDiagnostics, FileResolver, Input, ceil_char_boundary,
     github::{DisplayGithubDiagnostics, GithubRenderer},
 };
 use crate::{Db, files::File};
@@ -84,14 +83,17 @@ impl Diagnostic {
     /// at time of writing, `ruff_db` depends on `ruff_python_parser` instead of
     /// the other way around. And since we want to do this conversion in a couple
     /// places, it makes sense to centralize it _somewhere_. So it's here for now.
+    ///
+    /// Note that `message` is stored in the primary annotation, _not_ in the primary diagnostic
+    /// message.
     pub fn invalid_syntax(
         span: impl Into<Span>,
         message: impl IntoDiagnosticMessage,
         range: impl Ranged,
     ) -> Diagnostic {
-        let mut diag = Diagnostic::new(DiagnosticId::InvalidSyntax, Severity::Error, message);
+        let mut diag = Diagnostic::new(DiagnosticId::InvalidSyntax, Severity::Error, "");
         let span = span.into().with_range(range.range());
-        diag.annotate(Annotation::primary(span));
+        diag.annotate(Annotation::primary(span).message(message));
         diag
     }
 

crates/ruff_db/src/diagnostic/render.rs

@@ -1170,31 +1170,6 @@ pub fn ceil_char_boundary(text: &str, offset: TextSize) -> TextSize {
         .unwrap_or_else(|| TextSize::from(upper_bound))
 }
 
-/// A stub implementation of [`FileResolver`] intended for testing.
-pub struct DummyFileResolver;
-
-impl FileResolver for DummyFileResolver {
-    fn path(&self, _file: File) -> &str {
-        unimplemented!()
-    }
-
-    fn input(&self, _file: File) -> Input {
-        unimplemented!()
-    }
-
-    fn notebook_index(&self, _file: &UnifiedFile) -> Option<NotebookIndex> {
-        None
-    }
-
-    fn is_notebook(&self, _file: &UnifiedFile) -> bool {
-        false
-    }
-
-    fn current_directory(&self) -> &Path {
-        Path::new(".")
-    }
-}
-
 #[cfg(test)]
 mod tests {
 

crates/ruff_db/src/files.rs

@@ -193,17 +193,6 @@ impl Files {
         roots.at(&absolute)
     }
 
-    /// The same as [`Self::root`] but panics if no root is found.
-    #[track_caller]
-    pub fn expect_root(&self, db: &dyn Db, path: &SystemPath) -> FileRoot {
-        if let Some(root) = self.root(db, path) {
-            return root;
-        }
-
-        let roots = self.inner.roots.read().unwrap();
-        panic!("No root found for path '{path}'. Known roots: {roots:#?}");
-    }
-
     /// Adds a new root for `path` and returns the root.
     ///
     /// The root isn't added nor is the file root's kind updated if a root for `path` already exists.

crates/ruff_db/src/files/file_root.rs

@@ -81,8 +81,6 @@ impl FileRoots {
             }
         }
 
-        tracing::debug!("Adding new file root '{path}' of kind {kind:?}");
-
         // normalize the path to use `/` separators and escape the '{' and '}' characters,
         // which matchit uses for routing parameters
         let mut route = normalized_path.replace('{', "{{").replace('}', "}}");

crates/ruff_dev/src/generate_ty_rules.rs

@@ -93,39 +93,14 @@ fn generate_markdown() -> String {
             })
             .join("\n");
 
-        let status_text = match lint.status() {
-            ty_python_semantic::lint::LintStatus::Stable { since } => {
-                format!(
-                    r#"Added in <a href="https://github.com/astral-sh/ty/releases/tag/{since}">{since}</a>"#
-                )
-            }
-            ty_python_semantic::lint::LintStatus::Preview { since } => {
-                format!(
-                    r#"Preview (since <a href="https://github.com/astral-sh/ty/releases/tag/{since}">{since}</a>)"#
-                )
-            }
-            ty_python_semantic::lint::LintStatus::Deprecated { since, .. } => {
-                format!(
-                    r#"Deprecated (since <a href="https://github.com/astral-sh/ty/releases/tag/{since}">{since}</a>)"#
-                )
-            }
-            ty_python_semantic::lint::LintStatus::Removed { since, .. } => {
-                format!(
-                    r#"Removed (since <a href="https://github.com/astral-sh/ty/releases/tag/{since}">{since}</a>)"#
-                )
-            }
-        };
-
         let _ = writeln!(
             &mut output,
             r#"<small>
-Default level: <a href="../rules.md#rule-levels" title="This lint has a default level of '{level}'."><code>{level}</code></a> ·
-{status_text} ·
-<a href="https://github.com/astral-sh/ty/issues?q=sort%3Aupdated-desc%20is%3Aissue%20is%3Aopen%20{encoded_name}" target="_blank">Related issues</a> ·
-<a href="https://github.com/astral-sh/ruff/blob/main/{file}#L{line}" target="_blank">View source</a>
+Default level: [`{level}`](../rules.md#rule-levels "This lint has a default level of '{level}'.") ·
+[Related issues](https://github.com/astral-sh/ty/issues?q=sort%3Aupdated-desc%20is%3Aissue%20is%3Aopen%20{encoded_name}) ·
+[View source](https://github.com/astral-sh/ruff/blob/main/{file}#L{line})
 </small>
 
-
 {documentation}
 "#,
             level = lint.default_level(),

crates/ruff_graph/src/db.rs

@@ -98,10 +98,6 @@ impl Db for ModuleDb {
     fn lint_registry(&self) -> &LintRegistry {
         default_lint_registry()
     }
-
-    fn verbose(&self) -> bool {
-        false
-    }
 }
 
 #[salsa::db]

crates/ruff_linter/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ruff_linter"
-version = "0.14.1"
+version = "0.13.3"
 publish = false
 authors = { workspace = true }
 edition = { workspace = true }

crates/ruff_linter/resources/test/fixtures/airflow/AIR301_names.py

@@ -11,7 +11,7 @@ from airflow import (
 )
 from airflow.api_connexion.security import requires_access
 from airflow.contrib.aws_athena_hook import AWSAthenaHook
-from airflow.datasets import DatasetAliasEvent, DatasetEvent
+from airflow.datasets import DatasetAliasEvent
 from airflow.operators.postgres_operator import Mapping
 from airflow.operators.subdag import SubDagOperator
 from airflow.secrets.cache import SecretCache
@@ -48,7 +48,6 @@ AWSAthenaHook()
 
 # airflow.datasets
 DatasetAliasEvent()
-DatasetEvent()
 
 
 # airflow.operators.subdag.*

crates/ruff_linter/resources/test/fixtures/fastapi/FAST003.py

@@ -227,32 +227,3 @@ async def read_thing(query: str):
 @app.get("/things/{ thing_id : str }")
 async def read_thing(query: str):
     return {"query": query}
-
-
-# https://github.com/astral-sh/ruff/issues/20680
-# These should NOT trigger FAST003 because FastAPI doesn't recognize them as path parameters
-
-# Non-ASCII characters in parameter name
-@app.get("/f1/{用户身份}")
-async def f1():
-    return locals()
-
-# Space in parameter name  
-@app.get("/f2/{x: str}")
-async def f2():
-    return locals()
-
-# Non-ASCII converter
-@app.get("/f3/{complex_number:ℂ}")
-async def f3():
-    return locals()
-
-# Mixed non-ASCII characters
-@app.get("/f4/{用户_id}")
-async def f4():
-    return locals()
-
-# Space in parameter name with converter
-@app.get("/f5/{param: int}")
-async def f5():
-    return locals()

crates/ruff_linter/resources/test/fixtures/flake8_bandit/S602.py

@@ -33,10 +33,3 @@ class ShellConfig:
 
     def run(self, username):
         Popen("true", shell={**self.shell_defaults, **self.fetch_shell_config(username)})
-
-# Additional truthiness cases for generator, lambda, and f-strings
-Popen("true", shell=(i for i in ()))
-Popen("true", shell=lambda: 0)
-Popen("true", shell=f"{b''}")
-x = 1
-Popen("true", shell=f"{x=}")

crates/ruff_linter/resources/test/fixtures/flake8_bandit/S604.py

@@ -6,19 +6,3 @@ foo(shell=True)
 
 foo(shell={**{}})
 foo(shell={**{**{}}})
-
-# Truthy non-bool values for `shell`
-foo(shell=(i for i in ()))
-foo(shell=lambda: 0)
-
-# f-strings guaranteed non-empty
-foo(shell=f"{b''}")
-x = 1
-foo(shell=f"{x=}")
-
-# Additional truthiness cases for generator, lambda, and f-strings
-foo(shell=(i for i in ()))
-foo(shell=lambda: 0)
-foo(shell=f"{b''}")
-x = 1
-foo(shell=f"{x=}")

crates/ruff_linter/resources/test/fixtures/flake8_bandit/S609.py

@@ -9,10 +9,3 @@ os.system("tar cf foo.tar bar/*")
 
 subprocess.Popen(["chmod", "+w", "*.py"], shell={**{}})
 subprocess.Popen(["chmod", "+w", "*.py"], shell={**{**{}}})
-
-# Additional truthiness cases for generator, lambda, and f-strings
-subprocess.Popen("chmod +w foo*", shell=(i for i in ()))
-subprocess.Popen("chmod +w foo*", shell=lambda: 0)
-subprocess.Popen("chmod +w foo*", shell=f"{b''}")
-x = 1
-subprocess.Popen("chmod +w foo*", shell=f"{x=}")

crates/ruff_linter/resources/test/fixtures/flake8_implicit_str_concat/ISC_syntax_error.py

@@ -1,10 +1,10 @@
-# The lexer emits a string token if it's unterminated
+# The lexer doesn't emit a string token if it's unterminated
 "a" "b
 "a" "b" "c
 "a" """b
 c""" "d
 
-# This is also true for
+# For f-strings, the `FStringRanges` won't contain the range for
 # unterminated f-strings.
 f"a" f"b
 f"a" f"b" f"c

crates/ruff_linter/resources/test/fixtures/flake8_logging_format/G004_implicit_concat.py

@@ -1,8 +0,0 @@
-import logging
-
-variablename = "value"
-
-log = logging.getLogger(__name__)
-log.info(f"a" f"b {variablename}")
-log.info("a " f"b {variablename}")
-log.info("prefix " f"middle {variablename}" f" suffix")

crates/ruff_linter/resources/test/fixtures/flake8_pyi/PYI061.py

@@ -78,11 +78,3 @@ b: None | Literal[None] | None
 c: (None | Literal[None]) | None
 d: None | (Literal[None] | None)
 e: None | ((None | Literal[None]) | None) | None
-
-# Test cases for operator precedence issue (https://github.com/astral-sh/ruff/issues/20265)
-print(Literal[1, None].__dict__)  # Should become (Literal[1] | None).__dict__
-print(Literal[1, None].method())  # Should become (Literal[1] | None).method()
-print(Literal[1, None][0])  # Should become (Literal[1] | None)[0]
-print(Literal[1, None] + 1)  # Should become (Literal[1] | None) + 1
-print(Literal[1, None] * 2)  # Should become (Literal[1] | None) * 2
-print((Literal[1, None]).__dict__)  # Should become ((Literal[1] | None)).__dict__

crates/ruff_linter/resources/test/fixtures/flake8_simplify/SIM222.py

@@ -197,10 +197,3 @@ for x in {**a, **b} or [None]:
 
 # https://github.com/astral-sh/ruff/issues/7127
 def f(a: "'b' or 'c'"): ...
-
-# https://github.com/astral-sh/ruff/issues/20703
-print(f"{b''}" or "bar")  # SIM222
-x = 1
-print(f"{x=}" or "bar")  # SIM222
-(lambda: 1) or True  # SIM222
-(i for i in range(1)) or "bar"  # SIM222

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

@@ -1,3 +0,0 @@
-"a docstring"
-from __future__ import annotations
-# EOF

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

@@ -1,2 +0,0 @@
-from __future__ import annotations
-# EOF

crates/ruff_linter/resources/test/fixtures/pydoclint/DOC102_google.py

@@ -1,264 +0,0 @@
-# DOC102
-def add_numbers(b):
-    """
-    Adds two numbers and returns the result.
-
-    Args:
-        a (int): The first number to add.
-        b (int): The second number to add.
-
-    Returns:
-        int: The sum of the two numbers.
-    """
-    return a + b
-
-
-# DOC102
-def multiply_list_elements(lst):
-    """
-    Multiplies each element in a list by a given multiplier.
-
-    Args:
-        lst (list of int): A list of integers.
-        multiplier (int): The multiplier for each element in the list.
-
-    Returns:
-        list of int: A new list with each element multiplied.
-    """
-    return [x * multiplier for x in lst]
-
-
-# DOC102
-def find_max_value():
-    """
-    Finds the maximum value in a list of numbers.
-
-    Args:
-        numbers (list of int): A list of integers to search through.
-
-    Returns:
-        int: The maximum value found in the list.
-    """
-    return max(numbers)
-
-
-# DOC102
-def create_user_profile(location="here"):
-    """
-    Creates a user profile with basic information.
-
-    Args:
-        name (str): The name of the user.
-        age (int): The age of the user.
-        email (str): The user's email address.
-        location (str): The location of the user.
-
-    Returns:
-        dict: A dictionary containing the user's profile.
-    """
-    return {
-        'name': name,
-        'age': age,
-        'email': email,
-        'location': location
-    }
-
-
-# DOC102
-def calculate_total_price(item_prices, discount):
-    """
-    Calculates the total price after applying tax and a discount.
-
-    Args:
-        item_prices (list of float): A list of prices for each item.
-        tax_rate (float): The tax rate to apply.
-        discount (float): The discount to subtract from the total.
-
-    Returns:
-        float: The final total price after tax and discount.
-    """
-    total = sum(item_prices)
-    total_with_tax = total + (total * tax_rate)
-    final_total = total_with_tax - discount
-    return final_total
-
-
-# DOC102
-def send_email(subject, body, bcc_address=None):
-    """
-    Sends an email to the specified recipients.
-
-    Args:
-        subject (str): The subject of the email.
-        body (str): The content of the email.
-        to_address (str): The recipient's email address.
-        cc_address (str, optional): The email address for CC. Defaults to None.
-        bcc_address (str, optional): The email address for BCC. Defaults to None.
-
-    Returns:
-        bool: True if the email was sent successfully, False otherwise.
-    """
-    return True
-
-
-# DOC102
-def concatenate_strings(*args):
-    """
-    Concatenates multiple strings with a specified separator.
-
-    Args:
-        separator (str): The separator to use between strings.
-        *args (str): Variable length argument list of strings to concatenate.
-
-    Returns:
-        str: A single concatenated string.
-    """
-    return separator.join(args)
-
-
-# DOC102
-def process_order(order_id):
-    """
-    Processes an order with a list of items and optional order details.
-
-    Args:
-        order_id (int): The unique identifier for the order.
-        *items (str): Variable length argument list of items in the order.
-        **details (dict): Additional details such as shipping method and address.
-
-    Returns:
-        dict: A dictionary containing the order summary.
-    """
-    return {
-        'order_id': order_id,
-        'items': items,
-        'details': details
-    }
-
-
-class Calculator:
-    """
-    A simple calculator class that can perform basic arithmetic operations.
-    """
-
-    # DOC102
-    def __init__(self):
-        """
-        Initializes the calculator with an initial value.
-
-        Args:
-            value (int, optional): The initial value of the calculator. Defaults to 0.
-        """
-        self.value = value
-
-    # DOC102
-    def add(self, number2):
-        """
-        Adds a number to the current value.
-
-        Args:
-            number (int or float): The number to add to the current value.
-
-        Returns:
-            int or float: The updated value after addition.
-        """
-        self.value += number + number2
-        return self.value
-
-    # DOC102
-    @classmethod
-    def from_string(cls):
-        """
-        Creates a Calculator instance from a string representation of a number.
-
-        Args:
-            value_str (str): The string representing the initial value.
-
-        Returns:
-            Calculator: A new instance of Calculator initialized with the value from the string.
-        """
-        value = float(value_str)
-        return cls(value)
-
-    # DOC102
-    @staticmethod
-    def is_valid_number():
-        """
-        Checks if a given number is valid (int or float).
-
-        Args:
-            number (any): The value to check.
-
-        Returns:
-            bool: True if the number is valid, False otherwise.
-        """
-        return isinstance(number, (int, float))
-
-# OK
-def foo(param1, param2, *args, **kwargs):
-    """Foo.
-
-    Args:
-        param1 (int): The first parameter.
-        param2 (:obj:`str`, optional): The second parameter. Defaults to None.
-            Second line of description: should be indented.
-        *args: Variable length argument list.
-        **kwargs: Arbitrary keyword arguments.
-    """
-    return
-
-# OK
-def on_server_unloaded(self, server_context: ServerContext) -> None:
-    ''' Execute ``on_server_unloaded`` from ``server_lifecycle.py`` (if
-    it is defined) when the server cleanly exits. (Before stopping the
-    server's ``IOLoop``.)
-
-    Args:
-        server_context (ServerContext) :
-
-    .. warning::
-        In practice this code may not run, since servers are often killed
-        by a signal.
-
-
-    '''
-    return self._lifecycle_handler.on_server_unloaded(server_context)
-
-# OK
-def function_with_kwargs(param1, param2, **kwargs):
-    """Function with **kwargs parameter.
-
-    Args:
-        param1 (int): The first parameter.
-        param2 (str): The second parameter.
-        extra_param (str): An extra parameter that may be passed via **kwargs.
-        another_extra (int): Another extra parameter.
-    """
-    return
-
-# OK
-def add_numbers(b):
-    """
-    Adds two numbers and returns the result.
-
-    Args:
-        b: The second number to add.
-
-    Returns:
-        int: The sum of the two numbers.
-    """
-    return
-
-# DOC102
-def add_numbers(b):
-    """
-    Adds two numbers and returns the result.
-
-    Args:
-        a: The first number to add.
-        b: The second number to add.
-
-    Returns:
-        int: The sum of the two numbers.
-    """
-    return a + b

crates/ruff_linter/resources/test/fixtures/pydoclint/DOC102_numpy.py

@@ -1,372 +0,0 @@
-# DOC102
-def add_numbers(b):
-    """
-    Adds two numbers and returns the result.
-
-    Parameters
-    ----------
-    a : int
-        The first number to add.
-    b : int
-        The second number to add.
-
-    Returns
-    -------
-    int
-        The sum of the two numbers.
-    """
-    return a + b
-
-
-# DOC102
-def multiply_list_elements(lst):
-    """
-    Multiplies each element in a list by a given multiplier.
-
-    Parameters
-    ----------
-    lst : list of int
-        A list of integers.
-    multiplier : int
-        The multiplier for each element in the list.
-
-    Returns
-    -------
-    list of int
-        A new list with each element multiplied.
-    """
-    return [x * multiplier for x in lst]
-
-
-# DOC102
-def find_max_value():
-    """
-    Finds the maximum value in a list of numbers.
-
-    Parameters
-    ----------
-    numbers : list of int
-        A list of integers to search through.
-
-    Returns
-    -------
-    int
-        The maximum value found in the list.
-    """
-    return max(numbers)
-
-
-# DOC102
-def create_user_profile(location="here"):
-    """
-    Creates a user profile with basic information.
-
-    Parameters
-    ----------
-    name : str
-        The name of the user.
-    age : int
-        The age of the user.
-    email : str
-        The user's email address.
-    location : str, optional
-        The location of the user, by default "here".
-
-    Returns
-    -------
-    dict
-        A dictionary containing the user's profile.
-    """
-    return {
-        'name': name,
-        'age': age,
-        'email': email,
-        'location': location
-    }
-
-
-# DOC102
-def calculate_total_price(item_prices, discount):
-    """
-    Calculates the total price after applying tax and a discount.
-
-    Parameters
-    ----------
-    item_prices : list of float
-        A list of prices for each item.
-    tax_rate : float
-        The tax rate to apply.
-    discount : float
-        The discount to subtract from the total.
-
-    Returns
-    -------
-    float
-        The final total price after tax and discount.
-    """
-    total = sum(item_prices)
-    total_with_tax = total + (total * tax_rate)
-    final_total = total_with_tax - discount
-    return final_total
-
-
-# DOC102
-def send_email(subject, body, bcc_address=None):
-    """
-    Sends an email to the specified recipients.
-
-    Parameters
-    ----------
-    subject : str
-        The subject of the email.
-    body : str
-        The content of the email.
-    to_address : str
-        The recipient's email address.
-    cc_address : str, optional
-        The email address for CC, by default None.
-    bcc_address : str, optional
-        The email address for BCC, by default None.
-
-    Returns
-    -------
-    bool
-        True if the email was sent successfully, False otherwise.
-    """
-    return True
-
-
-# DOC102
-def concatenate_strings(*args):
-    """
-    Concatenates multiple strings with a specified separator.
-
-    Parameters
-    ----------
-    separator : str
-        The separator to use between strings.
-    *args : str
-        Variable length argument list of strings to concatenate.
-
-    Returns
-    -------
-    str
-        A single concatenated string.
-    """
-    return True
-
-
-# DOC102
-def process_order(order_id):
-    """
-    Processes an order with a list of items and optional order details.
-
-    Parameters
-    ----------
-    order_id : int
-        The unique identifier for the order.
-    *items : str
-        Variable length argument list of items in the order.
-    **details : dict
-        Additional details such as shipping method and address.
-
-    Returns
-    -------
-    dict
-        A dictionary containing the order summary.
-    """
-    return {
-        'order_id': order_id,
-        'items': items,
-        'details': details
-    }
-
-
-class Calculator:
-    """
-    A simple calculator class that can perform basic arithmetic operations.
-    """
-
-    # DOC102
-    def __init__(self):
-        """
-        Initializes the calculator with an initial value.
-
-        Parameters
-        ----------
-        value : int, optional
-            The initial value of the calculator, by default 0.
-        """
-        self.value = value
-
-    # DOC102
-    def add(self, number2):
-        """
-        Adds two numbers to the current value.
-
-        Parameters
-        ----------
-        number : int or float
-            The first number to add.
-        number2 : int or float
-            The second number to add.
-
-        Returns
-        -------
-        int or float
-            The updated value after addition.
-        """
-        self.value += number + number2
-        return self.value
-
-    # DOC102
-    @classmethod
-    def from_string(cls):
-        """
-        Creates a Calculator instance from a string representation of a number.
-
-        Parameters
-        ----------
-        value_str : str
-            The string representing the initial value.
-
-        Returns
-        -------
-        Calculator
-            A new instance of Calculator initialized with the value from the string.
-        """
-        value = float(value_str)
-        return cls(value)
-
-    # DOC102
-    @staticmethod
-    def is_valid_number():
-        """
-        Checks if a given number is valid (int or float).
-
-        Parameters
-        ----------
-        number : any
-            The value to check.
-
-        Returns
-        -------
-        bool
-            True if the number is valid, False otherwise.
-        """
-        return isinstance(number, (int, float))
-
-# OK
-def function_with_kwargs(param1, param2, **kwargs):
-    """Function with **kwargs parameter.
-
-    Parameters
-    ----------
-    param1 : int
-        The first parameter.
-    param2 : str
-        The second parameter.
-    extra_param : str
-        An extra parameter that may be passed via **kwargs.
-    another_extra : int
-        Another extra parameter.
-    """
-    return True
-
-# OK
-def add_numbers(b):
-    """
-    Adds two numbers and returns the result.
-
-    Parameters
-    ----------
-    b
-        The second number to add.
-
-    Returns
-    -------
-    int
-        The sum of the two numbers.
-    """
-    return a + b
-
-# DOC102
-def add_numbers(b):
-    """
-    Adds two numbers and returns the result.
-
-    Parameters
-    ----------
-    a
-        The first number to add.
-    b
-        The second number to add.
-
-    Returns
-    -------
-    int
-        The sum of the two numbers.
-    """
-    return a + b
-
-class Foo:
-    # OK
-    def send_help(self, *args: Any) -> Any:
-        """|coro|
-
-        Shows the help command for the specified entity if given.
-        The entity can be a command or a cog.
-
-        If no entity is given, then it'll show help for the
-        entire bot.
-
-        If the entity is a string, then it looks up whether it's a
-        :class:`Cog` or a :class:`Command`.
-
-        .. note::
-
-            Due to the way this function works, instead of returning
-            something similar to :meth:`~.commands.HelpCommand.command_not_found`
-            this returns :class:`None` on bad input or no help command.
-
-        Parameters
-        ----------
-        entity: Optional[Union[:class:`Command`, :class:`Cog`, :class:`str`]]
-            The entity to show help for.
-
-        Returns
-        -------
-        Any
-            The result of the help command, if any.
-        """
-        return
-
-    # OK
-    @classmethod
-    async def convert(cls, ctx: Context, argument: str) -> Self:
-        """|coro|
-
-        The method that actually converters an argument to the flag mapping.
-
-        Parameters
-        ----------
-        cls: Type[:class:`FlagConverter`]
-            The flag converter class.
-        ctx: :class:`Context`
-            The invocation context.
-        argument: :class:`str`
-            The argument to convert from.
-
-        Raises
-        ------
-        FlagError
-            A flag related parsing error.
-        CommandError
-            A command related error.
-
-        Returns
-        -------
-        :class:`FlagConverter`
-            The flag converter instance with all flags parsed.
-        """
-        return

crates/ruff_linter/resources/test/fixtures/pyflakes/F821_18.py

@@ -14,6 +14,6 @@ class Bar:
     ]
 
 
-# This is no longer allowed on Python 3.14+
+# OK: Allow named expressions in annotations.
 x: (y := 1)
 print(y)

crates/ruff_linter/resources/test/fixtures/pyflakes/F821_26.py

@@ -13,16 +13,16 @@ CStr2: TypeAlias = Union["C", str]  # always okay
 
 # References to a class from inside the class:
 class C:
-    other: C = ...  # valid in a `.pyi` stub file, and in a `.py` runtime file with deferred annotations
+    other: C = ...  # valid in a `.pyi` stub file, not in a `.py` runtime file
     other2: "C" = ...  # always okay
-    def from_str(self, s: str) -> C: ...  # valid in a `.pyi` stub file, and in a `.py` runtime file with deferred annotations
+    def from_str(self, s: str) -> C: ...  # valid in a `.pyi` stub file, not in a `.py` runtime file
     def from_str2(self, s: str) -> "C": ...  # always okay
 
 # Circular references:
 class A:
-    foo: B  # valid in a `.pyi` stub file, and in a `.py` runtime file with deferred annotations
+    foo: B  # valid in a `.pyi` stub file, not in a `.py` runtime file
     foo2: "B"  # always okay
-    bar: dict[str, B]  # valid in a `.pyi` stub file, and in a `.py` runtime file with deferred annotations
+    bar: dict[str, B]  # valid in a `.pyi` stub file, not in a `.py` runtime file
     bar2: dict[str, "A"]  # always okay
 
 class B:

crates/ruff_linter/resources/test/fixtures/pyupgrade/UP019.py

@@ -18,20 +18,3 @@ def print_third_word(word: Hello.Text) -> None:
 
 def print_fourth_word(word: Goodbye) -> None:
     print(word)
-    
-
-import typing_extensions
-import typing_extensions as TypingExt
-from typing_extensions import Text as TextAlias
-
-
-def print_fifth_word(word: typing_extensions.Text) -> None:
-    print(word)
-
-
-def print_sixth_word(word: TypingExt.Text) -> None:
-    print(word)
-
-
-def print_seventh_word(word: TextAlias) -> None:
-    print(word)

crates/ruff_linter/resources/test/fixtures/pyupgrade/UP040.py

@@ -43,7 +43,7 @@ class Foo:
 T = typing.TypeVar(*args)
 x: typing.TypeAlias = list[T]
 
-# `default` was added in Python 3.13
+# `default` should be skipped for now, added in Python 3.13
 T = typing.TypeVar("T", default=Any)
 x: typing.TypeAlias = list[T]
 
@@ -90,9 +90,9 @@ PositiveList = TypeAliasType(
     "PositiveList2", list[Annotated[T, Gt(0)]], type_params=(T,)
 )
 
-# `default` was added in Python 3.13
+# `default` should be skipped for now, added in Python 3.13
 T = typing.TypeVar("T", default=Any)
-AnyList = TypeAliasType("AnyList", list[T], type_params=(T,))
+AnyList = TypeAliasType("AnyList", list[T], typep_params=(T,))
 
 # unsafe fix if comments within the fix
 T = TypeVar("T")
@@ -128,7 +128,3 @@ T: TypeAlias = ( # comment0
     str  # comment6
     # comment7
 ) # comment8
-
-# Test case for TypeVar with default - should be converted when preview mode is enabled
-T_default = TypeVar("T_default", default=int)
-DefaultList: TypeAlias = list[T_default]

crates/ruff_linter/resources/test/fixtures/pyupgrade/UP046_0.py

@@ -122,7 +122,7 @@ class MixedGenerics[U]:
         return (u, t)
 
 
-# default requires 3.13
+# TODO(brent) default requires 3.13
 V = TypeVar("V", default=Any, bound=str)
 
 
@@ -130,14 +130,6 @@ class DefaultTypeVar(Generic[V]):  # -> [V: str = Any]
     var: V
 
 
-# Test case for TypeVar with default but no bound
-W = TypeVar("W", default=int)
-
-
-class DefaultOnlyTypeVar(Generic[W]):  # -> [W = int]
-    var: W
-
-
 # nested classes and functions are skipped
 class Outer:
     class Inner(Generic[T]):

crates/ruff_linter/resources/test/fixtures/pyupgrade/UP047.py

@@ -44,7 +44,9 @@ def any_str_param(s: AnyStr) -> AnyStr:
     return s
 
 
-# default requires 3.13
+# these cases are not handled
+
+# TODO(brent) default requires 3.13
 V = TypeVar("V", default=Any, bound=str)
 
 
@@ -52,8 +54,6 @@ def default_var(v: V) -> V:
     return v
 
 
-# these cases are not handled
-
 def outer():
     def inner(t: T) -> T:
         return t

crates/ruff_linter/resources/test/fixtures/ruff/RUF010.py

@@ -56,11 +56,3 @@ f"{str(object=3)}"
 f"{str(x for x in [])}"
 
 f"{str((x for x in []))}"
-
-# Debug text cases - should not trigger RUF010
-f"{str(1)=}"
-f"{ascii(1)=}"
-f"{repr(1)=}"
-f"{str('hello')=}"
-f"{ascii('hello')=}"
-f"{repr('hello')=}"

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

@@ -81,7 +81,6 @@ pub(crate) fn definitions(checker: &mut Checker) {
         Rule::UndocumentedPublicPackage,
     ]);
     let enforce_pydoclint = checker.any_rule_enabled(&[
-        Rule::DocstringExtraneousParameter,
         Rule::DocstringMissingReturns,
         Rule::DocstringExtraneousReturns,
         Rule::DocstringMissingYields,

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

@@ -50,6 +50,24 @@ pub(crate) fn statement(stmt: &Stmt, checker: &mut Checker) {
                 pylint::rules::nonlocal_and_global(checker, nonlocal);
             }
         }
+        Stmt::Break(_) => {
+            if checker.is_rule_enabled(Rule::BreakOutsideLoop) {
+                pyflakes::rules::break_outside_loop(
+                    checker,
+                    stmt,
+                    &mut checker.semantic.current_statements().skip(1),
+                );
+            }
+        }
+        Stmt::Continue(_) => {
+            if checker.is_rule_enabled(Rule::ContinueOutsideLoop) {
+                pyflakes::rules::continue_outside_loop(
+                    checker,
+                    stmt,
+                    &mut checker.semantic.current_statements().skip(1),
+                );
+            }
+        }
         Stmt::FunctionDef(
             function_def @ ast::StmtFunctionDef {
                 is_async,

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

@@ -697,7 +697,6 @@ impl SemanticSyntaxContext for Checker<'_> {
                 }
             }
             SemanticSyntaxErrorKind::FutureFeatureNotDefined(name) => {
-                // F407
                 if self.is_rule_enabled(Rule::FutureFeatureNotDefined) {
                     self.report_diagnostic(
                         pyflakes::rules::FutureFeatureNotDefined { name },
@@ -705,18 +704,6 @@ impl SemanticSyntaxContext for Checker<'_> {
                     );
                 }
             }
-            SemanticSyntaxErrorKind::BreakOutsideLoop => {
-                // F701
-                if self.is_rule_enabled(Rule::BreakOutsideLoop) {
-                    self.report_diagnostic(pyflakes::rules::BreakOutsideLoop, error.range);
-                }
-            }
-            SemanticSyntaxErrorKind::ContinueOutsideLoop => {
-                // F702
-                if self.is_rule_enabled(Rule::ContinueOutsideLoop) {
-                    self.report_diagnostic(pyflakes::rules::ContinueOutsideLoop, error.range);
-                }
-            }
             SemanticSyntaxErrorKind::ReboundComprehensionVariable
             | SemanticSyntaxErrorKind::DuplicateTypeParameter
             | SemanticSyntaxErrorKind::MultipleCaseAssignment(_)
@@ -824,40 +811,19 @@ impl SemanticSyntaxContext for Checker<'_> {
             }
         )
     }
-
-    fn in_loop_context(&self) -> bool {
-        let mut child = self.semantic.current_statement();
-
-        for parent in self.semantic.current_statements().skip(1) {
-            match parent {
-                Stmt::For(ast::StmtFor { orelse, .. })
-                | Stmt::While(ast::StmtWhile { orelse, .. }) => {
-                    if !orelse.contains(child) {
-                        return true;
-                    }
-                }
-                Stmt::FunctionDef(_) | Stmt::ClassDef(_) => {
-                    break;
-                }
-                _ => {}
-            }
-            child = parent;
-        }
-        false
-    }
 }
 
 impl<'a> Visitor<'a> for Checker<'a> {
     fn visit_stmt(&mut self, stmt: &'a Stmt) {
-        // Step 0: Pre-processing
-        self.semantic.push_node(stmt);
-
         // For functions, defer semantic syntax error checks until the body of the function is
         // visited
         if !stmt.is_function_def_stmt() {
             self.with_semantic_checker(|semantic, context| semantic.visit_stmt(stmt, context));
         }
 
+        // Step 0: Pre-processing
+        self.semantic.push_node(stmt);
+
         // For Jupyter Notebooks, we'll reset the `IMPORT_BOUNDARY` flag when
         // we encounter a cell boundary.
         if self.source_type.is_ipynb()

crates/ruff_linter/src/codes.rs

@@ -988,7 +988,6 @@ pub fn code_to_rule(linter: Linter, code: &str) -> Option<(RuleGroup, Rule)> {
         (FastApi, "003") => (RuleGroup::Stable, rules::fastapi::rules::FastApiUnusedPathParameter),
 
         // pydoclint
-        (Pydoclint, "102") => (RuleGroup::Preview, rules::pydoclint::rules::DocstringExtraneousParameter),
         (Pydoclint, "201") => (RuleGroup::Preview, rules::pydoclint::rules::DocstringMissingReturns),
         (Pydoclint, "202") => (RuleGroup::Preview, rules::pydoclint::rules::DocstringExtraneousReturns),
         (Pydoclint, "402") => (RuleGroup::Preview, rules::pydoclint::rules::DocstringMissingYields),

crates/ruff_linter/src/fs.rs

@@ -11,7 +11,8 @@ use crate::settings::types::CompiledPerFileIgnoreList;
 pub fn get_cwd() -> &'static Path {
     #[cfg(target_arch = "wasm32")]
     {
-        Path::new(".")
+        static CWD: std::sync::LazyLock<PathBuf> = std::sync::LazyLock::new(|| PathBuf::from("."));
+        &CWD
     }
     #[cfg(not(target_arch = "wasm32"))]
     path_absolutize::path_dedot::CWD.as_path()

crates/ruff_linter/src/importer/mod.rs

@@ -67,25 +67,17 @@ impl<'a> Importer<'a> {
     /// Add an import statement to import the given module.
     ///
     /// If there are no existing imports, the new import will be added at the top
-    /// of the file. If there are future imports, the new import will be added
-    /// after the last future import. Otherwise, it will be added after the most
-    /// recent top-level import statement.
+    /// of the file. Otherwise, it will be added after the most recent top-level
+    /// import statement.
     pub(crate) fn add_import(&self, import: &NameImport, at: TextSize) -> Edit {
         let required_import = import.to_string();
         if let Some(stmt) = self.preceding_import(at) {
             // Insert after the last top-level import.
             Insertion::end_of_statement(stmt, self.source, self.stylist).into_edit(&required_import)
         } else {
-            // Check if there are any future imports that we need to respect
-            if let Some(last_future_import) = self.find_last_future_import() {
-                // Insert after the last future import
-                Insertion::end_of_statement(last_future_import, self.source, self.stylist)
-                    .into_edit(&required_import)
-            } else {
-                // Insert at the start of the file.
-                Insertion::start_of_file(self.python_ast, self.source, self.stylist)
-                    .into_edit(&required_import)
-            }
+            // Insert at the start of the file.
+            Insertion::start_of_file(self.python_ast, self.source, self.stylist)
+                .into_edit(&required_import)
         }
     }
 
@@ -532,18 +524,6 @@ impl<'a> Importer<'a> {
         }
     }
 
-    /// Find the last `from __future__` import statement in the AST.
-    fn find_last_future_import(&self) -> Option<&'a Stmt> {
-        let mut body = self.python_ast.iter().peekable();
-        let _docstring = body.next_if(|stmt| ast::helpers::is_docstring_stmt(stmt));
-
-        body.take_while(|stmt| {
-            stmt.as_import_from_stmt()
-                .is_some_and(|import_from| import_from.module.as_deref() == Some("__future__"))
-        })
-        .last()
-    }
-
     /// Add a `from __future__ import annotations` import.
     pub(crate) fn add_future_import(&self) -> Edit {
         let import = &NameImport::ImportFrom(MemberNameImport::member(

crates/ruff_linter/src/linter.rs

@@ -24,15 +24,17 @@ use crate::checkers::tokens::check_tokens;
 use crate::directives::Directives;
 use crate::doc_lines::{doc_lines_from_ast, doc_lines_from_tokens};
 use crate::fix::{FixResult, fix_file};
+use crate::message::create_syntax_error_diagnostic;
 use crate::noqa::add_noqa;
 use crate::package::PackageRoot;
+use crate::preview::is_py314_support_enabled;
 use crate::registry::Rule;
 #[cfg(any(feature = "test-rules", test))]
 use crate::rules::ruff::rules::test_rules::{self, TEST_RULES, TestRule};
 use crate::settings::types::UnsafeFixes;
 use crate::settings::{LinterSettings, TargetVersion, flags};
 use crate::source_kind::SourceKind;
-use crate::{Locator, directives, fs};
+use crate::{Locator, directives, fs, warn_user_once};
 
 pub(crate) mod float;
 
@@ -440,6 +442,14 @@ pub fn lint_only(
 ) -> LinterResult {
     let target_version = settings.resolve_target_version(path);
 
+    if matches!(target_version, TargetVersion(Some(PythonVersion::PY314)))
+        && !is_py314_support_enabled(settings)
+    {
+        warn_user_once!(
+            "Support for Python 3.14 is in preview and may undergo breaking changes. Enable `preview` to remove this warning."
+        );
+    }
+
     let parsed = source.into_parsed(source_kind, source_type, target_version.parser_version());
 
     // Map row and column locations to byte slices (lazily).
@@ -495,15 +505,15 @@ fn diagnostics_to_messages(
     parse_errors
         .iter()
         .map(|parse_error| {
-            Diagnostic::invalid_syntax(source_file.clone(), &parse_error.error, parse_error)
+            create_syntax_error_diagnostic(source_file.clone(), &parse_error.error, parse_error)
         })
         .chain(unsupported_syntax_errors.iter().map(|syntax_error| {
-            Diagnostic::invalid_syntax(source_file.clone(), syntax_error, syntax_error)
+            create_syntax_error_diagnostic(source_file.clone(), syntax_error, syntax_error)
         }))
         .chain(
             semantic_syntax_errors
                 .iter()
-                .map(|error| Diagnostic::invalid_syntax(source_file.clone(), error, error)),
+                .map(|error| create_syntax_error_diagnostic(source_file.clone(), error, error)),
         )
         .chain(diagnostics.into_iter().map(|mut diagnostic| {
             if let Some(range) = diagnostic.range() {
@@ -541,6 +551,14 @@ pub fn lint_fix<'a>(
 
     let target_version = settings.resolve_target_version(path);
 
+    if matches!(target_version, TargetVersion(Some(PythonVersion::PY314)))
+        && !is_py314_support_enabled(settings)
+    {
+        warn_user_once!(
+            "Support for Python 3.14 is in preview and may undergo breaking changes. Enable `preview` to remove this warning."
+        );
+    }
+
     // Continuously fix until the source code stabilizes.
     loop {
         // Parse once.

crates/ruff_linter/src/message/mod.rs

@@ -16,7 +16,7 @@ use ruff_db::files::File;
 pub use grouped::GroupedEmitter;
 use ruff_notebook::NotebookIndex;
 use ruff_source_file::{SourceFile, SourceFileBuilder};
-use ruff_text_size::{TextRange, TextSize};
+use ruff_text_size::{Ranged, TextRange, TextSize};
 pub use sarif::SarifEmitter;
 
 use crate::Fix;
@@ -26,6 +26,24 @@ use crate::settings::types::{OutputFormat, RuffOutputFormat};
 mod grouped;
 mod sarif;
 
+/// Creates a `Diagnostic` from a syntax error, with the format expected by Ruff.
+///
+/// This is almost identical to `ruff_db::diagnostic::create_syntax_error_diagnostic`, except the
+/// `message` is stored as the primary diagnostic message instead of on the primary annotation.
+///
+/// TODO(brent) These should be unified at some point, but we keep them separate for now to avoid a
+/// ton of snapshot changes while combining ruff's diagnostic type with `Diagnostic`.
+pub fn create_syntax_error_diagnostic(
+    span: impl Into<Span>,
+    message: impl std::fmt::Display,
+    range: impl Ranged,
+) -> Diagnostic {
+    let mut diag = Diagnostic::new(DiagnosticId::InvalidSyntax, Severity::Error, message);
+    let span = span.into().with_range(range.range());
+    diag.annotate(Annotation::primary(span));
+    diag
+}
+
 /// Create a `Diagnostic` from a panic.
 pub fn create_panic_diagnostic(error: &PanicError, path: Option<&Path>) -> Diagnostic {
     let mut diagnostic = Diagnostic::new(
@@ -242,6 +260,8 @@ mod tests {
     use crate::message::{Emitter, EmitterContext, create_lint_diagnostic};
     use crate::{Edit, Fix};
 
+    use super::create_syntax_error_diagnostic;
+
     pub(super) fn create_syntax_error_diagnostics() -> Vec<Diagnostic> {
         let source = r"from os import
 
@@ -254,7 +274,7 @@ if call(foo
             .errors()
             .iter()
             .map(|parse_error| {
-                Diagnostic::invalid_syntax(source_file.clone(), &parse_error.error, parse_error)
+                create_syntax_error_diagnostic(source_file.clone(), &parse_error.error, parse_error)
             })
             .collect()
     }

crates/ruff_linter/src/preview.rs

@@ -7,6 +7,10 @@
 
 use crate::settings::LinterSettings;
 
+pub(crate) const fn is_py314_support_enabled(settings: &LinterSettings) -> bool {
+    settings.preview.is_enabled()
+}
+
 // Rule-specific behavior
 
 // https://github.com/astral-sh/ruff/pull/15541
@@ -242,11 +246,6 @@ pub(crate) const fn is_refined_submodule_import_match_enabled(settings: &LinterS
     settings.preview.is_enabled()
 }
 
-// https://github.com/astral-sh/ruff/pull/20660
-pub(crate) const fn is_type_var_default_enabled(settings: &LinterSettings) -> bool {
-    settings.preview.is_enabled()
-}
-
 // github.com/astral-sh/ruff/issues/20004
 pub(crate) const fn is_b006_check_guaranteed_mutable_expr_enabled(
     settings: &LinterSettings,
@@ -260,17 +259,3 @@ pub(crate) const fn is_b006_unsafe_fix_preserve_assignment_expr_enabled(
 ) -> bool {
     settings.preview.is_enabled()
 }
-
-// https://github.com/astral-sh/ruff/pull/20520
-pub(crate) const fn is_fix_read_whole_file_enabled(settings: &LinterSettings) -> bool {
-    settings.preview.is_enabled()
-}
-
-// https://github.com/astral-sh/ruff/pull/20520
-pub(crate) const fn is_fix_write_whole_file_enabled(settings: &LinterSettings) -> bool {
-    settings.preview.is_enabled()
-}
-
-pub(crate) const fn is_typing_extensions_str_alias_enabled(settings: &LinterSettings) -> bool {
-    settings.preview.is_enabled()
-}

crates/ruff_linter/src/rules/airflow/rules/removal_in_3.rs

@@ -655,11 +655,6 @@ fn check_name(checker: &Checker, expr: &Expr, range: TextRange) {
         },
         // airflow.datasets
         ["airflow", "datasets", "DatasetAliasEvent"] => Replacement::None,
-        ["airflow", "datasets", "DatasetEvent"] => Replacement::Message(
-            "`DatasetEvent` has been made private in Airflow 3. \
-             Use `dict[str, Any]` for the time being. \
-             An `AssetEvent` type will be added to the apache-airflow-task-sdk in a future version.",
-        ),
 
         // airflow.hooks
         ["airflow", "hooks", "base_hook", "BaseHook"] => Replacement::Rename {

crates/ruff_linter/src/rules/airflow/snapshots/ruff_linter__rules__airflow__tests__AIR301_AIR301_names.py.snap

@@ -104,49 +104,38 @@ AIR301 `airflow.datasets.DatasetAliasEvent` is removed in Airflow 3.0
 49 | # airflow.datasets
 50 | DatasetAliasEvent()
    | ^^^^^^^^^^^^^^^^^
-51 | DatasetEvent()
    |
 
-AIR301 `airflow.datasets.DatasetEvent` is removed in Airflow 3.0
-  --> AIR301_names.py:51:1
-   |
-49 | # airflow.datasets
-50 | DatasetAliasEvent()
-51 | DatasetEvent()
-   | ^^^^^^^^^^^^
-   |
-help: `DatasetEvent` has been made private in Airflow 3. Use `dict[str, Any]` for the time being. An `AssetEvent` type will be added to the apache-airflow-task-sdk in a future version.
-
 AIR301 `airflow.operators.subdag.SubDagOperator` is removed in Airflow 3.0
-  --> AIR301_names.py:55:1
+  --> AIR301_names.py:54:1
    |
-54 | # airflow.operators.subdag.*
-55 | SubDagOperator()
+53 | # airflow.operators.subdag.*
+54 | SubDagOperator()
    | ^^^^^^^^^^^^^^
-56 |
-57 | # airflow.operators.postgres_operator
+55 |
+56 | # airflow.operators.postgres_operator
    |
 help: The whole `airflow.subdag` module has been removed.
 
 AIR301 `airflow.operators.postgres_operator.Mapping` is removed in Airflow 3.0
-  --> AIR301_names.py:58:1
+  --> AIR301_names.py:57:1
    |
-57 | # airflow.operators.postgres_operator
-58 | Mapping()
+56 | # airflow.operators.postgres_operator
+57 | Mapping()
    | ^^^^^^^
-59 |
-60 | # airflow.secrets
+58 |
+59 | # airflow.secrets
    |
 
 AIR301 [*] `airflow.secrets.cache.SecretCache` is removed in Airflow 3.0
-  --> AIR301_names.py:65:1
+  --> AIR301_names.py:64:1
    |
-64 | # airflow.secrets.cache
-65 | SecretCache()
+63 | # airflow.secrets.cache
+64 | SecretCache()
    | ^^^^^^^^^^^
    |
 help: Use `SecretCache` from `airflow.sdk` instead.
-14 | from airflow.datasets import DatasetAliasEvent, DatasetEvent
+14 | from airflow.datasets import DatasetAliasEvent
 15 | from airflow.operators.postgres_operator import Mapping
 16 | from airflow.operators.subdag import SubDagOperator
    - from airflow.secrets.cache import SecretCache
@@ -164,211 +153,211 @@ help: Use `SecretCache` from `airflow.sdk` instead.
 note: This is an unsafe fix and may change runtime behavior
 
 AIR301 `airflow.triggers.external_task.TaskStateTrigger` is removed in Airflow 3.0
-  --> AIR301_names.py:69:1
+  --> AIR301_names.py:68:1
    |
-68 | # airflow.triggers.external_task
-69 | TaskStateTrigger()
+67 | # airflow.triggers.external_task
+68 | TaskStateTrigger()
    | ^^^^^^^^^^^^^^^^
-70 |
-71 | # airflow.utils.date
+69 |
+70 | # airflow.utils.date
    |
 
 AIR301 `airflow.utils.dates.date_range` is removed in Airflow 3.0
-  --> AIR301_names.py:72:1
+  --> AIR301_names.py:71:1
    |
-71 | # airflow.utils.date
-72 | dates.date_range
+70 | # airflow.utils.date
+71 | dates.date_range
    | ^^^^^^^^^^^^^^^^
-73 | dates.days_ago
+72 | dates.days_ago
    |
 
 AIR301 `airflow.utils.dates.days_ago` is removed in Airflow 3.0
-  --> AIR301_names.py:73:1
+  --> AIR301_names.py:72:1
    |
-71 | # airflow.utils.date
-72 | dates.date_range
-73 | dates.days_ago
+70 | # airflow.utils.date
+71 | dates.date_range
+72 | dates.days_ago
    | ^^^^^^^^^^^^^^
-74 |
-75 | date_range
+73 |
+74 | date_range
    |
 help: Use `pendulum.today('UTC').add(days=-N, ...)` instead
 
 AIR301 `airflow.utils.dates.date_range` is removed in Airflow 3.0
-  --> AIR301_names.py:75:1
+  --> AIR301_names.py:74:1
    |
-73 | dates.days_ago
-74 |
-75 | date_range
+72 | dates.days_ago
+73 |
+74 | date_range
    | ^^^^^^^^^^
-76 | days_ago
-77 | infer_time_unit
+75 | days_ago
+76 | infer_time_unit
    |
 
 AIR301 `airflow.utils.dates.days_ago` is removed in Airflow 3.0
-  --> AIR301_names.py:76:1
+  --> AIR301_names.py:75:1
    |
-75 | date_range
-76 | days_ago
+74 | date_range
+75 | days_ago
    | ^^^^^^^^
-77 | infer_time_unit
-78 | parse_execution_date
+76 | infer_time_unit
+77 | parse_execution_date
    |
 help: Use `pendulum.today('UTC').add(days=-N, ...)` instead
 
 AIR301 `airflow.utils.dates.infer_time_unit` is removed in Airflow 3.0
-  --> AIR301_names.py:77:1
+  --> AIR301_names.py:76:1
    |
-75 | date_range
-76 | days_ago
-77 | infer_time_unit
+74 | date_range
+75 | days_ago
+76 | infer_time_unit
    | ^^^^^^^^^^^^^^^
-78 | parse_execution_date
-79 | round_time
+77 | parse_execution_date
+78 | round_time
    |
 
 AIR301 `airflow.utils.dates.parse_execution_date` is removed in Airflow 3.0
-  --> AIR301_names.py:78:1
+  --> AIR301_names.py:77:1
    |
-76 | days_ago
-77 | infer_time_unit
-78 | parse_execution_date
+75 | days_ago
+76 | infer_time_unit
+77 | parse_execution_date
    | ^^^^^^^^^^^^^^^^^^^^
-79 | round_time
-80 | scale_time_units
+78 | round_time
+79 | scale_time_units
    |
 
 AIR301 `airflow.utils.dates.round_time` is removed in Airflow 3.0
-  --> AIR301_names.py:79:1
+  --> AIR301_names.py:78:1
    |
-77 | infer_time_unit
-78 | parse_execution_date
-79 | round_time
+76 | infer_time_unit
+77 | parse_execution_date
+78 | round_time
    | ^^^^^^^^^^
-80 | scale_time_units
+79 | scale_time_units
    |
 
 AIR301 `airflow.utils.dates.scale_time_units` is removed in Airflow 3.0
-  --> AIR301_names.py:80:1
+  --> AIR301_names.py:79:1
    |
-78 | parse_execution_date
-79 | round_time
-80 | scale_time_units
+77 | parse_execution_date
+78 | round_time
+79 | scale_time_units
    | ^^^^^^^^^^^^^^^^
-81 |
-82 | # This one was not deprecated.
+80 |
+81 | # This one was not deprecated.
    |
 
 AIR301 `airflow.utils.dag_cycle_tester.test_cycle` is removed in Airflow 3.0
-  --> AIR301_names.py:87:1
+  --> AIR301_names.py:86:1
    |
-86 | # airflow.utils.dag_cycle_tester
-87 | test_cycle
+85 | # airflow.utils.dag_cycle_tester
+86 | test_cycle
    | ^^^^^^^^^^
    |
 
 AIR301 `airflow.utils.db.create_session` is removed in Airflow 3.0
-  --> AIR301_names.py:91:1
+  --> AIR301_names.py:90:1
    |
-90 | # airflow.utils.db
-91 | create_session
+89 | # airflow.utils.db
+90 | create_session
    | ^^^^^^^^^^^^^^
-92 |
-93 | # airflow.utils.decorators
+91 |
+92 | # airflow.utils.decorators
    |
 
 AIR301 `airflow.utils.decorators.apply_defaults` is removed in Airflow 3.0
-  --> AIR301_names.py:94:1
+  --> AIR301_names.py:93:1
    |
-93 | # airflow.utils.decorators
-94 | apply_defaults
+92 | # airflow.utils.decorators
+93 | apply_defaults
    | ^^^^^^^^^^^^^^
-95 |
-96 | # airflow.utils.file
+94 |
+95 | # airflow.utils.file
    |
 help: `apply_defaults` is now unconditionally done and can be safely removed.
 
 AIR301 `airflow.utils.file.mkdirs` is removed in Airflow 3.0
-  --> AIR301_names.py:97:1
+  --> AIR301_names.py:96:1
    |
-96 | # airflow.utils.file
-97 | mkdirs
+95 | # airflow.utils.file
+96 | mkdirs
    | ^^^^^^
    |
 help: Use `pathlib.Path({path}).mkdir` instead
 
 AIR301 `airflow.utils.state.SHUTDOWN` is removed in Airflow 3.0
-   --> AIR301_names.py:101:1
+   --> AIR301_names.py:100:1
     |
-100 | # airflow.utils.state
-101 | SHUTDOWN
+ 99 | # airflow.utils.state
+100 | SHUTDOWN
     | ^^^^^^^^
-102 | terminating_states
+101 | terminating_states
     |
 
 AIR301 `airflow.utils.state.terminating_states` is removed in Airflow 3.0
-   --> AIR301_names.py:102:1
+   --> AIR301_names.py:101:1
     |
-100 | # airflow.utils.state
-101 | SHUTDOWN
-102 | terminating_states
+ 99 | # airflow.utils.state
+100 | SHUTDOWN
+101 | terminating_states
     | ^^^^^^^^^^^^^^^^^^
-103 |
-104 | #  airflow.utils.trigger_rule
+102 |
+103 | #  airflow.utils.trigger_rule
     |
 
 AIR301 `airflow.utils.trigger_rule.TriggerRule.DUMMY` is removed in Airflow 3.0
-   --> AIR301_names.py:105:1
+   --> AIR301_names.py:104:1
     |
-104 | #  airflow.utils.trigger_rule
-105 | TriggerRule.DUMMY
+103 | #  airflow.utils.trigger_rule
+104 | TriggerRule.DUMMY
     | ^^^^^^^^^^^^^^^^^
-106 | TriggerRule.NONE_FAILED_OR_SKIPPED
+105 | TriggerRule.NONE_FAILED_OR_SKIPPED
     |
 
 AIR301 `airflow.utils.trigger_rule.TriggerRule.NONE_FAILED_OR_SKIPPED` is removed in Airflow 3.0
-   --> AIR301_names.py:106:1
+   --> AIR301_names.py:105:1
     |
-104 | #  airflow.utils.trigger_rule
-105 | TriggerRule.DUMMY
-106 | TriggerRule.NONE_FAILED_OR_SKIPPED
+103 | #  airflow.utils.trigger_rule
+104 | TriggerRule.DUMMY
+105 | TriggerRule.NONE_FAILED_OR_SKIPPED
     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
     |
 
 AIR301 `airflow.www.auth.has_access` is removed in Airflow 3.0
-   --> AIR301_names.py:110:1
+   --> AIR301_names.py:109:1
     |
-109 | # airflow.www.auth
-110 | has_access
+108 | # airflow.www.auth
+109 | has_access
     | ^^^^^^^^^^
-111 | has_access_dataset
+110 | has_access_dataset
     |
 
 AIR301 `airflow.www.auth.has_access_dataset` is removed in Airflow 3.0
-   --> AIR301_names.py:111:1
+   --> AIR301_names.py:110:1
     |
-109 | # airflow.www.auth
-110 | has_access
-111 | has_access_dataset
+108 | # airflow.www.auth
+109 | has_access
+110 | has_access_dataset
     | ^^^^^^^^^^^^^^^^^^
-112 |
-113 | # airflow.www.utils
+111 |
+112 | # airflow.www.utils
     |
 
 AIR301 `airflow.www.utils.get_sensitive_variables_fields` is removed in Airflow 3.0
-   --> AIR301_names.py:114:1
+   --> AIR301_names.py:113:1
     |
-113 | # airflow.www.utils
-114 | get_sensitive_variables_fields
+112 | # airflow.www.utils
+113 | get_sensitive_variables_fields
     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-115 | should_hide_value_for_key
+114 | should_hide_value_for_key
     |
 
 AIR301 `airflow.www.utils.should_hide_value_for_key` is removed in Airflow 3.0
-   --> AIR301_names.py:115:1
+   --> AIR301_names.py:114:1
     |
-113 | # airflow.www.utils
-114 | get_sensitive_variables_fields
-115 | should_hide_value_for_key
+112 | # airflow.www.utils
+113 | get_sensitive_variables_fields
+114 | should_hide_value_for_key
     | ^^^^^^^^^^^^^^^^^^^^^^^^^
     |

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

@@ -8,12 +8,9 @@ mod tests {
     use anyhow::Result;
     use test_case::test_case;
 
-    use ruff_python_ast::PythonVersion;
-
     use crate::registry::Rule;
-    use crate::settings::LinterSettings;
     use crate::test::test_path;
-    use crate::{assert_diagnostics, assert_diagnostics_diff};
+    use crate::{assert_diagnostics, settings};
 
     #[test_case(Rule::FastApiRedundantResponseModel, Path::new("FAST001.py"))]
     #[test_case(Rule::FastApiNonAnnotatedDependency, Path::new("FAST002_0.py"))]
@@ -23,35 +20,12 @@ mod tests {
         let snapshot = format!("{}_{}", rule_code.name(), path.to_string_lossy());
         let diagnostics = test_path(
             Path::new("fastapi").join(path).as_path(),
-            &LinterSettings::for_rule(rule_code),
+            &settings::LinterSettings::for_rule(rule_code),
         )?;
         assert_diagnostics!(snapshot, diagnostics);
         Ok(())
     }
 
-    #[test_case(Rule::FastApiRedundantResponseModel, Path::new("FAST001.py"))]
-    #[test_case(Rule::FastApiUnusedPathParameter, Path::new("FAST003.py"))]
-    fn deferred_annotations_diff(rule_code: Rule, path: &Path) -> Result<()> {
-        let snapshot = format!(
-            "deferred_annotations_diff_{}_{}",
-            rule_code.name(),
-            path.to_string_lossy()
-        );
-        assert_diagnostics_diff!(
-            snapshot,
-            Path::new("fastapi").join(path).as_path(),
-            &LinterSettings {
-                unresolved_target_version: PythonVersion::PY313.into(),
-                ..LinterSettings::for_rule(rule_code)
-            },
-            &LinterSettings {
-                unresolved_target_version: PythonVersion::PY314.into(),
-                ..LinterSettings::for_rule(rule_code)
-            },
-        );
-        Ok(())
-    }
-
     // FAST002 autofixes use `typing_extensions` on Python 3.8,
     // since `typing.Annotated` was added in Python 3.9
     #[test_case(Rule::FastApiNonAnnotatedDependency, Path::new("FAST002_0.py"))]
@@ -60,9 +34,9 @@ mod tests {
         let snapshot = format!("{}_{}_py38", rule_code.name(), path.to_string_lossy());
         let diagnostics = test_path(
             Path::new("fastapi").join(path).as_path(),
-            &LinterSettings {
-                unresolved_target_version: PythonVersion::PY38.into(),
-                ..LinterSettings::for_rule(rule_code)
+            &settings::LinterSettings {
+                unresolved_target_version: ruff_python_ast::PythonVersion::PY38.into(),
+                ..settings::LinterSettings::for_rule(rule_code)
             },
         )?;
         assert_diagnostics!(snapshot, diagnostics);

crates/ruff_linter/src/rules/fastapi/rules/fastapi_unused_path_parameter.rs

@@ -1,12 +1,12 @@
+use std::iter::Peekable;
 use std::ops::Range;
-use std::sync::LazyLock;
-
-use regex::{CaptureMatches, Regex};
+use std::str::CharIndices;
 
 use ruff_macros::{ViolationMetadata, derive_message_formats};
 use ruff_python_ast as ast;
 use ruff_python_ast::{Arguments, Expr, ExprCall, ExprSubscript, Parameter, ParameterWithDefault};
 use ruff_python_semantic::{BindingKind, Modules, ScopeKind, SemanticModel};
+use ruff_python_stdlib::identifiers::is_identifier;
 use ruff_text_size::{Ranged, TextSize};
 
 use crate::Fix;
@@ -165,6 +165,11 @@ pub(crate) fn fastapi_unused_path_parameter(
 
     // Check if any of the path parameters are not in the function signature.
     for (path_param, range) in path_params {
+        // Ignore invalid identifiers (e.g., `user-id`, as opposed to `user_id`)
+        if !is_identifier(path_param) {
+            continue;
+        }
+
         // If the path parameter is already in the function or the dependency signature,
         // we don't need to do anything.
         if named_args.contains(&path_param) {
@@ -456,19 +461,15 @@ fn parameter_alias<'a>(parameter: &'a Parameter, semantic: &SemanticModel) -> Op
 /// the parameter name. For example, `/{x}` is a valid parameter, but `/{ x }` is treated literally.
 #[derive(Debug)]
 struct PathParamIterator<'a> {
-    inner: CaptureMatches<'a, 'a>,
+    input: &'a str,
+    chars: Peekable<CharIndices<'a>>,
 }
 
 impl<'a> PathParamIterator<'a> {
     fn new(input: &'a str) -> Self {
-        /// Matches the Starlette pattern for path parameters with optional converters from
-        /// <https://github.com/Kludex/starlette/blob/e18637c68e36d112b1983bc0c8b663681e6a4c50/starlette/routing.py#L121>
-        static FASTAPI_PATH_PARAM_REGEX: LazyLock<Regex> = LazyLock::new(|| {
-            Regex::new(r"\{([a-zA-Z_][a-zA-Z0-9_]*)(?::[a-zA-Z_][a-zA-Z0-9_]*)?\}").unwrap()
-        });
-
-        Self {
-            inner: FASTAPI_PATH_PARAM_REGEX.captures_iter(input),
+        PathParamIterator {
+            input,
+            chars: input.char_indices().peekable(),
         }
     }
 }
@@ -477,10 +478,19 @@ impl<'a> Iterator for PathParamIterator<'a> {
     type Item = (&'a str, Range<usize>);
 
     fn next(&mut self) -> Option<Self::Item> {
-        self.inner
-            .next()
-            // Extract the first capture group (the path parameter), but return the range of the
-            // whole match (everything in braces and including the braces themselves).
-            .and_then(|capture| Some((capture.get(1)?.as_str(), capture.get(0)?.range())))
+        while let Some((start, c)) = self.chars.next() {
+            if c == '{' {
+                if let Some((end, _)) = self.chars.by_ref().find(|&(_, ch)| ch == '}') {
+                    let param_content = &self.input[start + 1..end];
+                    // We ignore text after a colon, since those are path converters
+                    // See also: https://fastapi.tiangolo.com/tutorial/path-params/?h=path#path-convertor
+                    let param_name_end = param_content.find(':').unwrap_or(param_content.len());
+                    let param_name = &param_content[..param_name_end];
+
+                    return Some((param_name, start..end + 1));
+                }
+            }
+        }
+        None
     }
 }

crates/ruff_linter/src/rules/fastapi/snapshots/ruff_linter__rules__fastapi__tests__deferred_annotations_diff_fast-api-redundant-response-model_FAST001.py.snap

@@ -1,213 +0,0 @@
----
-source: crates/ruff_linter/src/rules/fastapi/mod.rs
----
---- Linter settings ---
--linter.unresolved_target_version = 3.13
-+linter.unresolved_target_version = 3.14
-
---- Summary ---
-Removed: 10
-Added: 0
-
---- Removed ---
-FAST001 [*] FastAPI route with redundant `response_model` argument
-  --> FAST001.py:17:22
-   |
-17 | @app.post("/items/", response_model=Item)
-   |                      ^^^^^^^^^^^^^^^^^^^
-18 | async def create_item(item: Item) -> Item:
-19 |     return item
-   |
-help: Remove argument
-14 | # Errors
-15 | 
-16 | 
-   - @app.post("/items/", response_model=Item)
-17 + @app.post("/items/")
-18 | async def create_item(item: Item) -> Item:
-19 |     return item
-20 | 
-note: This is an unsafe fix and may change runtime behavior
-
-
-FAST001 [*] FastAPI route with redundant `response_model` argument
-  --> FAST001.py:22:22
-   |
-22 | @app.post("/items/", response_model=list[Item])
-   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
-23 | async def create_item(item: Item) -> list[Item]:
-24 |     return item
-   |
-help: Remove argument
-19 |     return item
-20 | 
-21 | 
-   - @app.post("/items/", response_model=list[Item])
-22 + @app.post("/items/")
-23 | async def create_item(item: Item) -> list[Item]:
-24 |     return item
-25 | 
-note: This is an unsafe fix and may change runtime behavior
-
-
-FAST001 [*] FastAPI route with redundant `response_model` argument
-  --> FAST001.py:27:22
-   |
-27 | @app.post("/items/", response_model=List[Item])
-   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
-28 | async def create_item(item: Item) -> List[Item]:
-29 |     return item
-   |
-help: Remove argument
-24 |     return item
-25 | 
-26 | 
-   - @app.post("/items/", response_model=List[Item])
-27 + @app.post("/items/")
-28 | async def create_item(item: Item) -> List[Item]:
-29 |     return item
-30 | 
-note: This is an unsafe fix and may change runtime behavior
-
-
-FAST001 [*] FastAPI route with redundant `response_model` argument
-  --> FAST001.py:32:22
-   |
-32 | @app.post("/items/", response_model=Dict[str, Item])
-   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-33 | async def create_item(item: Item) -> Dict[str, Item]:
-34 |     return item
-   |
-help: Remove argument
-29 |     return item
-30 | 
-31 | 
-   - @app.post("/items/", response_model=Dict[str, Item])
-32 + @app.post("/items/")
-33 | async def create_item(item: Item) -> Dict[str, Item]:
-34 |     return item
-35 | 
-note: This is an unsafe fix and may change runtime behavior
-
-
-FAST001 [*] FastAPI route with redundant `response_model` argument
-  --> FAST001.py:37:22
-   |
-37 | @app.post("/items/", response_model=str)
-   |                      ^^^^^^^^^^^^^^^^^^
-38 | async def create_item(item: Item) -> str:
-39 |     return item
-   |
-help: Remove argument
-34 |     return item
-35 | 
-36 | 
-   - @app.post("/items/", response_model=str)
-37 + @app.post("/items/")
-38 | async def create_item(item: Item) -> str:
-39 |     return item
-40 | 
-note: This is an unsafe fix and may change runtime behavior
-
-
-FAST001 [*] FastAPI route with redundant `response_model` argument
-  --> FAST001.py:42:21
-   |
-42 | @app.get("/items/", response_model=Item)
-   |                     ^^^^^^^^^^^^^^^^^^^
-43 | async def create_item(item: Item) -> Item:
-44 |     return item
-   |
-help: Remove argument
-39 |     return item
-40 | 
-41 | 
-   - @app.get("/items/", response_model=Item)
-42 + @app.get("/items/")
-43 | async def create_item(item: Item) -> Item:
-44 |     return item
-45 | 
-note: This is an unsafe fix and may change runtime behavior
-
-
-FAST001 [*] FastAPI route with redundant `response_model` argument
-  --> FAST001.py:47:21
-   |
-47 | @app.get("/items/", response_model=Item)
-   |                     ^^^^^^^^^^^^^^^^^^^
-48 | @app.post("/items/", response_model=Item)
-49 | async def create_item(item: Item) -> Item:
-   |
-help: Remove argument
-44 |     return item
-45 | 
-46 | 
-   - @app.get("/items/", response_model=Item)
-47 + @app.get("/items/")
-48 | @app.post("/items/", response_model=Item)
-49 | async def create_item(item: Item) -> Item:
-50 |     return item
-note: This is an unsafe fix and may change runtime behavior
-
-
-FAST001 [*] FastAPI route with redundant `response_model` argument
-  --> FAST001.py:48:22
-   |
-47 | @app.get("/items/", response_model=Item)
-48 | @app.post("/items/", response_model=Item)
-   |                      ^^^^^^^^^^^^^^^^^^^
-49 | async def create_item(item: Item) -> Item:
-50 |     return item
-   |
-help: Remove argument
-45 | 
-46 | 
-47 | @app.get("/items/", response_model=Item)
-   - @app.post("/items/", response_model=Item)
-48 + @app.post("/items/")
-49 | async def create_item(item: Item) -> Item:
-50 |     return item
-51 | 
-note: This is an unsafe fix and may change runtime behavior
-
-
-FAST001 [*] FastAPI route with redundant `response_model` argument
-  --> FAST001.py:53:24
-   |
-53 | @router.get("/items/", response_model=Item)
-   |                        ^^^^^^^^^^^^^^^^^^^
-54 | async def create_item(item: Item) -> Item:
-55 |     return item
-   |
-help: Remove argument
-50 |     return item
-51 | 
-52 | 
-   - @router.get("/items/", response_model=Item)
-53 + @router.get("/items/")
-54 | async def create_item(item: Item) -> Item:
-55 |     return item
-56 | 
-note: This is an unsafe fix and may change runtime behavior
-
-
-FAST001 [*] FastAPI route with redundant `response_model` argument
-   --> FAST001.py:118:23
-    |
-116 | def setup_app(app_arg: FastAPI, non_app: str) -> None:
-117 |     # Error
-118 |     @app_arg.get("/", response_model=str)
-    |                       ^^^^^^^^^^^^^^^^^^
-119 |     async def get_root() -> str:
-120 |         return "Hello World!"
-    |
-help: Remove argument
-115 | 
-116 | def setup_app(app_arg: FastAPI, non_app: str) -> None:
-117 |     # Error
-    -     @app_arg.get("/", response_model=str)
-118 +     @app_arg.get("/")
-119 |     async def get_root() -> str:
-120 |         return "Hello World!"
-121 | 
-note: This is an unsafe fix and may change runtime behavior

crates/ruff_linter/src/rules/fastapi/snapshots/ruff_linter__rules__fastapi__tests__deferred_annotations_diff_fast-api-unused-path-parameter_FAST003.py.snap

@@ -1,74 +0,0 @@
----
-source: crates/ruff_linter/src/rules/fastapi/mod.rs
----
---- Linter settings ---
--linter.unresolved_target_version = 3.13
-+linter.unresolved_target_version = 3.14
-
---- Summary ---
-Removed: 3
-Added: 0
-
---- Removed ---
-FAST003 [*] Parameter `thing_id` appears in route path, but not in `single` signature
-   --> FAST003.py:158:19
-    |
-157 | ### Errors
-158 | @app.get("/things/{thing_id}")
-    |                   ^^^^^^^^^^
-159 | async def single(other: Annotated[str, Depends(something_else)]): ...
-160 | @app.get("/things/{thing_id}")
-    |
-help: Add `thing_id` to function signature
-156 | 
-157 | ### Errors
-158 | @app.get("/things/{thing_id}")
-    - async def single(other: Annotated[str, Depends(something_else)]): ...
-159 + async def single(other: Annotated[str, Depends(something_else)], thing_id): ...
-160 | @app.get("/things/{thing_id}")
-161 | async def default(other: str = Depends(something_else)): ...
-162 | 
-note: This is an unsafe fix and may change runtime behavior
-
-
-FAST003 [*] Parameter `id` appears in route path, but not in `get_id_pydantic_full` signature
-   --> FAST003.py:197:12
-    |
-196 | # Errors
-197 | @app.get("/{id}")
-    |            ^^^^
-198 | async def get_id_pydantic_full(
-199 |     params: Annotated[PydanticParams, Depends(PydanticParams)],
-    |
-help: Add `id` to function signature
-196 | # Errors
-197 | @app.get("/{id}")
-198 | async def get_id_pydantic_full(
-    -     params: Annotated[PydanticParams, Depends(PydanticParams)],
-199 +     params: Annotated[PydanticParams, Depends(PydanticParams)], id,
-200 | ): ...
-201 | @app.get("/{id}")
-202 | async def get_id_pydantic_short(params: Annotated[PydanticParams, Depends()]): ...
-note: This is an unsafe fix and may change runtime behavior
-
-
-FAST003 [*] Parameter `id` appears in route path, but not in `get_id_pydantic_short` signature
-   --> FAST003.py:201:12
-    |
-199 |     params: Annotated[PydanticParams, Depends(PydanticParams)],
-200 | ): ...
-201 | @app.get("/{id}")
-    |            ^^^^
-202 | async def get_id_pydantic_short(params: Annotated[PydanticParams, Depends()]): ...
-203 | @app.get("/{id}")
-    |
-help: Add `id` to function signature
-199 |     params: Annotated[PydanticParams, Depends(PydanticParams)],
-200 | ): ...
-201 | @app.get("/{id}")
-    - async def get_id_pydantic_short(params: Annotated[PydanticParams, Depends()]): ...
-202 + async def get_id_pydantic_short(params: Annotated[PydanticParams, Depends()], id): ...
-203 | @app.get("/{id}")
-204 | async def get_id_init_not_annotated(params = Depends(InitParams)): ...
-205 | 
-note: This is an unsafe fix and may change runtime behavior

crates/ruff_linter/src/rules/fastapi/snapshots/ruff_linter__rules__fastapi__tests__fast-api-redundant-response-model_FAST001.py.snap

@@ -1,4 +1,195 @@
 ---
 source: crates/ruff_linter/src/rules/fastapi/mod.rs
 ---
+FAST001 [*] FastAPI route with redundant `response_model` argument
+  --> FAST001.py:17:22
+   |
+17 | @app.post("/items/", response_model=Item)
+   |                      ^^^^^^^^^^^^^^^^^^^
+18 | async def create_item(item: Item) -> Item:
+19 |     return item
+   |
+help: Remove argument
+14 | # Errors
+15 | 
+16 | 
+   - @app.post("/items/", response_model=Item)
+17 + @app.post("/items/")
+18 | async def create_item(item: Item) -> Item:
+19 |     return item
+20 | 
+note: This is an unsafe fix and may change runtime behavior
 
+FAST001 [*] FastAPI route with redundant `response_model` argument
+  --> FAST001.py:22:22
+   |
+22 | @app.post("/items/", response_model=list[Item])
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
+23 | async def create_item(item: Item) -> list[Item]:
+24 |     return item
+   |
+help: Remove argument
+19 |     return item
+20 | 
+21 | 
+   - @app.post("/items/", response_model=list[Item])
+22 + @app.post("/items/")
+23 | async def create_item(item: Item) -> list[Item]:
+24 |     return item
+25 | 
+note: This is an unsafe fix and may change runtime behavior
+
+FAST001 [*] FastAPI route with redundant `response_model` argument
+  --> FAST001.py:27:22
+   |
+27 | @app.post("/items/", response_model=List[Item])
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
+28 | async def create_item(item: Item) -> List[Item]:
+29 |     return item
+   |
+help: Remove argument
+24 |     return item
+25 | 
+26 | 
+   - @app.post("/items/", response_model=List[Item])
+27 + @app.post("/items/")
+28 | async def create_item(item: Item) -> List[Item]:
+29 |     return item
+30 | 
+note: This is an unsafe fix and may change runtime behavior
+
+FAST001 [*] FastAPI route with redundant `response_model` argument
+  --> FAST001.py:32:22
+   |
+32 | @app.post("/items/", response_model=Dict[str, Item])
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+33 | async def create_item(item: Item) -> Dict[str, Item]:
+34 |     return item
+   |
+help: Remove argument
+29 |     return item
+30 | 
+31 | 
+   - @app.post("/items/", response_model=Dict[str, Item])
+32 + @app.post("/items/")
+33 | async def create_item(item: Item) -> Dict[str, Item]:
+34 |     return item
+35 | 
+note: This is an unsafe fix and may change runtime behavior
+
+FAST001 [*] FastAPI route with redundant `response_model` argument
+  --> FAST001.py:37:22
+   |
+37 | @app.post("/items/", response_model=str)
+   |                      ^^^^^^^^^^^^^^^^^^
+38 | async def create_item(item: Item) -> str:
+39 |     return item
+   |
+help: Remove argument
+34 |     return item
+35 | 
+36 | 
+   - @app.post("/items/", response_model=str)
+37 + @app.post("/items/")
+38 | async def create_item(item: Item) -> str:
+39 |     return item
+40 | 
+note: This is an unsafe fix and may change runtime behavior
+
+FAST001 [*] FastAPI route with redundant `response_model` argument
+  --> FAST001.py:42:21
+   |
+42 | @app.get("/items/", response_model=Item)
+   |                     ^^^^^^^^^^^^^^^^^^^
+43 | async def create_item(item: Item) -> Item:
+44 |     return item
+   |
+help: Remove argument
+39 |     return item
+40 | 
+41 | 
+   - @app.get("/items/", response_model=Item)
+42 + @app.get("/items/")
+43 | async def create_item(item: Item) -> Item:
+44 |     return item
+45 | 
+note: This is an unsafe fix and may change runtime behavior
+
+FAST001 [*] FastAPI route with redundant `response_model` argument
+  --> FAST001.py:47:21
+   |
+47 | @app.get("/items/", response_model=Item)
+   |                     ^^^^^^^^^^^^^^^^^^^
+48 | @app.post("/items/", response_model=Item)
+49 | async def create_item(item: Item) -> Item:
+   |
+help: Remove argument
+44 |     return item
+45 | 
+46 | 
+   - @app.get("/items/", response_model=Item)
+47 + @app.get("/items/")
+48 | @app.post("/items/", response_model=Item)
+49 | async def create_item(item: Item) -> Item:
+50 |     return item
+note: This is an unsafe fix and may change runtime behavior
+
+FAST001 [*] FastAPI route with redundant `response_model` argument
+  --> FAST001.py:48:22
+   |
+47 | @app.get("/items/", response_model=Item)
+48 | @app.post("/items/", response_model=Item)
+   |                      ^^^^^^^^^^^^^^^^^^^
+49 | async def create_item(item: Item) -> Item:
+50 |     return item
+   |
+help: Remove argument
+45 | 
+46 | 
+47 | @app.get("/items/", response_model=Item)
+   - @app.post("/items/", response_model=Item)
+48 + @app.post("/items/")
+49 | async def create_item(item: Item) -> Item:
+50 |     return item
+51 | 
+note: This is an unsafe fix and may change runtime behavior
+
+FAST001 [*] FastAPI route with redundant `response_model` argument
+  --> FAST001.py:53:24
+   |
+53 | @router.get("/items/", response_model=Item)
+   |                        ^^^^^^^^^^^^^^^^^^^
+54 | async def create_item(item: Item) -> Item:
+55 |     return item
+   |
+help: Remove argument
+50 |     return item
+51 | 
+52 | 
+   - @router.get("/items/", response_model=Item)
+53 + @router.get("/items/")
+54 | async def create_item(item: Item) -> Item:
+55 |     return item
+56 | 
+note: This is an unsafe fix and may change runtime behavior
+
+FAST001 [*] FastAPI route with redundant `response_model` argument
+   --> FAST001.py:118:23
+    |
+116 | def setup_app(app_arg: FastAPI, non_app: str) -> None:
+117 |     # Error
+118 |     @app_arg.get("/", response_model=str)
+    |                       ^^^^^^^^^^^^^^^^^^
+119 |     async def get_root() -> str:
+120 |         return "Hello World!"
+    |
+help: Remove argument
+115 | 
+116 | def setup_app(app_arg: FastAPI, non_app: str) -> None:
+117 |     # Error
+    -     @app_arg.get("/", response_model=str)
+118 +     @app_arg.get("/")
+119 |     async def get_root() -> str:
+120 |         return "Hello World!"
+121 | 
+note: This is an unsafe fix and may change runtime behavior

crates/ruff_linter/src/rules/fastapi/snapshots/ruff_linter__rules__fastapi__tests__fast-api-unused-path-parameter_FAST003.py.snap

@@ -324,6 +324,26 @@ help: Add `name` to function signature
 91 | 
 note: This is an unsafe fix and may change runtime behavior
 
+FAST003 [*] Parameter `thing_id` appears in route path, but not in `single` signature
+   --> FAST003.py:158:19
+    |
+157 | ### Errors
+158 | @app.get("/things/{thing_id}")
+    |                   ^^^^^^^^^^
+159 | async def single(other: Annotated[str, Depends(something_else)]): ...
+160 | @app.get("/things/{thing_id}")
+    |
+help: Add `thing_id` to function signature
+156 | 
+157 | ### Errors
+158 | @app.get("/things/{thing_id}")
+    - async def single(other: Annotated[str, Depends(something_else)]): ...
+159 + async def single(other: Annotated[str, Depends(something_else)], thing_id): ...
+160 | @app.get("/things/{thing_id}")
+161 | async def default(other: str = Depends(something_else)): ...
+162 | 
+note: This is an unsafe fix and may change runtime behavior
+
 FAST003 [*] Parameter `thing_id` appears in route path, but not in `default` signature
    --> FAST003.py:160:19
     |
@@ -344,6 +364,47 @@ help: Add `thing_id` to function signature
 164 | ### No errors
 note: This is an unsafe fix and may change runtime behavior
 
+FAST003 [*] Parameter `id` appears in route path, but not in `get_id_pydantic_full` signature
+   --> FAST003.py:197:12
+    |
+196 | # Errors
+197 | @app.get("/{id}")
+    |            ^^^^
+198 | async def get_id_pydantic_full(
+199 |     params: Annotated[PydanticParams, Depends(PydanticParams)],
+    |
+help: Add `id` to function signature
+196 | # Errors
+197 | @app.get("/{id}")
+198 | async def get_id_pydantic_full(
+    -     params: Annotated[PydanticParams, Depends(PydanticParams)],
+199 +     params: Annotated[PydanticParams, Depends(PydanticParams)], id,
+200 | ): ...
+201 | @app.get("/{id}")
+202 | async def get_id_pydantic_short(params: Annotated[PydanticParams, Depends()]): ...
+note: This is an unsafe fix and may change runtime behavior
+
+FAST003 [*] Parameter `id` appears in route path, but not in `get_id_pydantic_short` signature
+   --> FAST003.py:201:12
+    |
+199 |     params: Annotated[PydanticParams, Depends(PydanticParams)],
+200 | ): ...
+201 | @app.get("/{id}")
+    |            ^^^^
+202 | async def get_id_pydantic_short(params: Annotated[PydanticParams, Depends()]): ...
+203 | @app.get("/{id}")
+    |
+help: Add `id` to function signature
+199 |     params: Annotated[PydanticParams, Depends(PydanticParams)],
+200 | ): ...
+201 | @app.get("/{id}")
+    - async def get_id_pydantic_short(params: Annotated[PydanticParams, Depends()]): ...
+202 + async def get_id_pydantic_short(params: Annotated[PydanticParams, Depends()], id): ...
+203 | @app.get("/{id}")
+204 | async def get_id_init_not_annotated(params = Depends(InitParams)): ...
+205 | 
+note: This is an unsafe fix and may change runtime behavior
+
 FAST003 [*] Parameter `id` appears in route path, but not in `get_id_init_not_annotated` signature
    --> FAST003.py:203:12
     |

crates/ruff_linter/src/rules/flake8_bandit/rules/suspicious_function_call.rs

@@ -1091,12 +1091,9 @@ fn suspicious_function(
         ] => checker.report_diagnostic_if_enabled(SuspiciousInsecureCipherModeUsage, range),
 
         // Mktemp
-        ["tempfile", "mktemp"] => checker
-            .report_diagnostic_if_enabled(SuspiciousMktempUsage, range)
-            .map(|mut diagnostic| {
-                diagnostic.add_primary_tag(ruff_db::diagnostic::DiagnosticTag::Deprecated);
-                diagnostic
-            }),
+        ["tempfile", "mktemp"] => {
+            checker.report_diagnostic_if_enabled(SuspiciousMktempUsage, range)
+        }
 
         // Eval
         ["" | "builtins", "eval"] => {

crates/ruff_linter/src/rules/flake8_bandit/snapshots/ruff_linter__rules__flake8_bandit__tests__S602_S602.py.snap

@@ -127,44 +127,3 @@ S602 `subprocess` call with `shell=True` identified, security issue
 21 |
 22 | # Check dict display with only double-starred expressions can be falsey.
    |
-
-S602 `subprocess` call with truthy `shell` seems safe, but may be changed in the future; consider rewriting without `shell`
-  --> S602.py:38:1
-   |
-37 | # Additional truthiness cases for generator, lambda, and f-strings
-38 | Popen("true", shell=(i for i in ()))
-   | ^^^^^
-39 | Popen("true", shell=lambda: 0)
-40 | Popen("true", shell=f"{b''}")
-   |
-
-S602 `subprocess` call with truthy `shell` seems safe, but may be changed in the future; consider rewriting without `shell`
-  --> S602.py:39:1
-   |
-37 | # Additional truthiness cases for generator, lambda, and f-strings
-38 | Popen("true", shell=(i for i in ()))
-39 | Popen("true", shell=lambda: 0)
-   | ^^^^^
-40 | Popen("true", shell=f"{b''}")
-41 | x = 1
-   |
-
-S602 `subprocess` call with truthy `shell` seems safe, but may be changed in the future; consider rewriting without `shell`
-  --> S602.py:40:1
-   |
-38 | Popen("true", shell=(i for i in ()))
-39 | Popen("true", shell=lambda: 0)
-40 | Popen("true", shell=f"{b''}")
-   | ^^^^^
-41 | x = 1
-42 | Popen("true", shell=f"{x=}")
-   |
-
-S602 `subprocess` call with truthy `shell` seems safe, but may be changed in the future; consider rewriting without `shell`
-  --> S602.py:42:1
-   |
-40 | Popen("true", shell=f"{b''}")
-41 | x = 1
-42 | Popen("true", shell=f"{x=}")
-   | ^^^^^
-   |

crates/ruff_linter/src/rules/flake8_bandit/snapshots/ruff_linter__rules__flake8_bandit__tests__S604_S604.py.snap

@@ -9,85 +9,3 @@ S604 Function call with `shell=True` parameter identified, security issue
 6 |
 7 | foo(shell={**{}})
   |
-
-S604 Function call with truthy `shell` parameter identified, security issue
-  --> S604.py:11:1
-   |
-10 | # Truthy non-bool values for `shell`
-11 | foo(shell=(i for i in ()))
-   | ^^^
-12 | foo(shell=lambda: 0)
-   |
-
-S604 Function call with truthy `shell` parameter identified, security issue
-  --> S604.py:12:1
-   |
-10 | # Truthy non-bool values for `shell`
-11 | foo(shell=(i for i in ()))
-12 | foo(shell=lambda: 0)
-   | ^^^
-13 |
-14 | # f-strings guaranteed non-empty
-   |
-
-S604 Function call with truthy `shell` parameter identified, security issue
-  --> S604.py:15:1
-   |
-14 | # f-strings guaranteed non-empty
-15 | foo(shell=f"{b''}")
-   | ^^^
-16 | x = 1
-17 | foo(shell=f"{x=}")
-   |
-
-S604 Function call with truthy `shell` parameter identified, security issue
-  --> S604.py:17:1
-   |
-15 | foo(shell=f"{b''}")
-16 | x = 1
-17 | foo(shell=f"{x=}")
-   | ^^^
-18 |
-19 | # Additional truthiness cases for generator, lambda, and f-strings
-   |
-
-S604 Function call with truthy `shell` parameter identified, security issue
-  --> S604.py:20:1
-   |
-19 | # Additional truthiness cases for generator, lambda, and f-strings
-20 | foo(shell=(i for i in ()))
-   | ^^^
-21 | foo(shell=lambda: 0)
-22 | foo(shell=f"{b''}")
-   |
-
-S604 Function call with truthy `shell` parameter identified, security issue
-  --> S604.py:21:1
-   |
-19 | # Additional truthiness cases for generator, lambda, and f-strings
-20 | foo(shell=(i for i in ()))
-21 | foo(shell=lambda: 0)
-   | ^^^
-22 | foo(shell=f"{b''}")
-23 | x = 1
-   |
-
-S604 Function call with truthy `shell` parameter identified, security issue
-  --> S604.py:22:1
-   |
-20 | foo(shell=(i for i in ()))
-21 | foo(shell=lambda: 0)
-22 | foo(shell=f"{b''}")
-   | ^^^
-23 | x = 1
-24 | foo(shell=f"{x=}")
-   |
-
-S604 Function call with truthy `shell` parameter identified, security issue
-  --> S604.py:24:1
-   |
-22 | foo(shell=f"{b''}")
-23 | x = 1
-24 | foo(shell=f"{x=}")
-   | ^^^
-   |

crates/ruff_linter/src/rules/flake8_bandit/snapshots/ruff_linter__rules__flake8_bandit__tests__S609_S609.py.snap

@@ -43,44 +43,3 @@ S609 Possible wildcard injection in call due to `*` usage
  9 |
 10 | subprocess.Popen(["chmod", "+w", "*.py"], shell={**{}})
    |
-
-S609 Possible wildcard injection in call due to `*` usage
-  --> S609.py:14:18
-   |
-13 | # Additional truthiness cases for generator, lambda, and f-strings
-14 | subprocess.Popen("chmod +w foo*", shell=(i for i in ()))
-   |                  ^^^^^^^^^^^^^^^
-15 | subprocess.Popen("chmod +w foo*", shell=lambda: 0)
-16 | subprocess.Popen("chmod +w foo*", shell=f"{b''}")
-   |
-
-S609 Possible wildcard injection in call due to `*` usage
-  --> S609.py:15:18
-   |
-13 | # Additional truthiness cases for generator, lambda, and f-strings
-14 | subprocess.Popen("chmod +w foo*", shell=(i for i in ()))
-15 | subprocess.Popen("chmod +w foo*", shell=lambda: 0)
-   |                  ^^^^^^^^^^^^^^^
-16 | subprocess.Popen("chmod +w foo*", shell=f"{b''}")
-17 | x = 1
-   |
-
-S609 Possible wildcard injection in call due to `*` usage
-  --> S609.py:16:18
-   |
-14 | subprocess.Popen("chmod +w foo*", shell=(i for i in ()))
-15 | subprocess.Popen("chmod +w foo*", shell=lambda: 0)
-16 | subprocess.Popen("chmod +w foo*", shell=f"{b''}")
-   |                  ^^^^^^^^^^^^^^^
-17 | x = 1
-18 | subprocess.Popen("chmod +w foo*", shell=f"{x=}")
-   |
-
-S609 Possible wildcard injection in call due to `*` usage
-  --> S609.py:18:18
-   |
-16 | subprocess.Popen("chmod +w foo*", shell=f"{b''}")
-17 | x = 1
-18 | subprocess.Popen("chmod +w foo*", shell=f"{x=}")
-   |                  ^^^^^^^^^^^^^^^
-   |

crates/ruff_linter/src/rules/flake8_bugbear/rules/map_without_explicit_strict.rs

@@ -34,10 +34,9 @@ use crate::{AlwaysFixableViolation, Applicability, Fix};
 /// ```
 ///
 /// ## Fix safety
-/// This rule's fix is marked as unsafe. While adding `strict=False` preserves
-/// the runtime behavior, it can obscure situations where the iterables are of
-/// unequal length. Ruff prefers to alert users so they can choose the intended
-/// behavior themselves.
+/// This rule's fix is marked as unsafe for `map` calls that contain
+/// `**kwargs`, as adding a `strict` keyword argument to such a call may lead
+/// to a duplicate keyword argument error.
 ///
 /// ## References
 /// - [Python documentation: `map`](https://docs.python.org/3/library/functions.html#map)
@@ -74,7 +73,17 @@ pub(crate) fn map_without_explicit_strict(checker: &Checker, call: &ast::ExprCal
                     checker.comment_ranges(),
                     checker.locator().contents(),
                 ),
-                Applicability::Unsafe,
+                // If the function call contains `**kwargs`, mark the fix as unsafe.
+                if call
+                    .arguments
+                    .keywords
+                    .iter()
+                    .any(|keyword| keyword.arg.is_none())
+                {
+                    Applicability::Unsafe
+                } else {
+                    Applicability::Safe
+                },
             ));
     }
 }