Bump version to 0.0.204

Check for Unsupported Files and Display Errors and Warnings (#1509 )
Restore pyproject.toml
2022-12-31 08:20:09 -05:00 · 2022-12-31 08:12:55 -05:00 · 2022-12-31 08:06:08 -05:00 · 2022-12-31 08:05:04 -05:00 · 2022-12-31 08:02:29 -05:00 · 2022-12-31 08:02:13 -05:00
635 changed files with 22271 additions and 3733 deletions
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -12,7 +12,7 @@ env:
  RUSTUP_MAX_RETRIES: 10

 jobs:
-  cargo_build:
+  cargo-build:
    name: "cargo build"
    runs-on: ubuntu-latest
    steps:
@@ -36,14 +36,13 @@ jobs:
            ${{ runner.os }}-build-
            ${{ runner.os }}-
      - run: cargo build --all --release
-      - run: ./target/release/ruff_dev generate-rules-table
-      - run: ./target/release/ruff_dev generate-options
-      - run: git diff --quiet README.md || echo "::error file=README.md::This file is outdated. You may have to rerun 'cargo dev generate-options' and/or 'cargo dev generate-rules-table'."
-      - run: ./target/release/ruff_dev generate-check-code-prefix
-      - run: git diff --quiet src/checks_gen.rs || echo "::error file=src/checks_gen.rs::This file is outdated. You may have to rerun 'cargo dev generate-check-code-prefix'."
-      - run: git diff --exit-code -- README.md src/checks_gen.rs
+      - run: ./target/release/ruff_dev generate-all
+      - run: git diff --quiet README.md || echo "::error file=README.md::This file is outdated. Run 'cargo +nightly dev generate-all'."
+      - run: git diff --quiet src/checks_gen.rs || echo "::error file=src/checks_gen.rs::This file is outdated. Run 'cargo +nightly dev generate-all'."
+      - run: git diff --quiet ruff.schema.json || echo "::error file=ruff.schema.json::This file is outdated. Run 'cargo +nightly dev generate-all'."
+      - run: git diff --exit-code -- README.md src/checks_gen.rs ruff.schema.json

-  cargo_fmt:
+  cargo-fmt:
    name: "cargo fmt"
    runs-on: ubuntu-latest
    steps:
@@ -79,6 +78,7 @@ jobs:
          toolchain: nightly-2022-11-01
          override: true
          components: clippy
+          target: wasm32-unknown-unknown
      - uses: actions/cache@v3
        env:
          cache-name: cache-cargo
@@ -92,8 +92,9 @@ jobs:
            ${{ runner.os }}-build-
            ${{ runner.os }}-
      - run: cargo clippy --workspace --all-targets --all-features -- -D warnings -W clippy::pedantic
+      - run: cargo clippy --workspace --target wasm32-unknown-unknown --all-features -- -D warnings -W clippy::pedantic

-  cargo_test:
+  cargo-test:
    name: "cargo test"
    runs-on: ubuntu-latest
    steps:
@@ -116,10 +117,50 @@ jobs:
            ${{ runner.os }}-build-
            ${{ runner.os }}-
      - run: pip install black[d]==22.12.0
-      - run: cargo test --all
+      - name: Run tests
+        run: |
+          export INSTA_SNAPSHOT_REFERENCES_FILE="$(mktemp)"
+          cargo test --all
+          USED_SNAPSHOTS=$(cat $INSTA_SNAPSHOT_REFERENCES_FILE | xargs realpath --relative-to $PWD)
+          UNUSED_SNAPSHOTS=$(cat <(git ls-files '*.snap') <(echo "$USED_SNAPSHOTS") | sort | uniq -u)
+          if [ ! -z "$UNUSED_SNAPSHOTS" ]; then
+            echo "Found unused snapshots:"
+            echo "$UNUSED_SNAPSHOTS"
+            exit 1
+          fi
      - run: cargo test --package ruff --test black_compatibility_test -- --ignored

-  maturin_build:
+# TODO(charlie): Re-enable the `wasm-pack` tests.
+# See: https://github.com/charliermarsh/ruff/issues/1425
+#  wasm-pack-test:
+#    name: "wasm-pack test"
+#    runs-on: ubuntu-latest
+#    env:
+#      WASM_BINDGEN_TEST_TIMEOUT: 60
+#    steps:
+#      - uses: actions/checkout@v3
+#      - uses: actions-rs/toolchain@v1
+#        with:
+#          profile: minimal
+#          toolchain: nightly-2022-11-01
+#          override: true
+#      - uses: actions/cache@v3
+#        env:
+#          cache-name: cache-cargo
+#        with:
+#          path: |
+#            ~/.cargo/registry
+#            ~/.cargo/git
+#          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/Cargo.lock') }}
+#          restore-keys: |
+#            ${{ runner.os }}-build-${{ env.cache-name }}-
+#            ${{ runner.os }}-build-
+#            ${{ runner.os }}-
+#      - uses: jetli/wasm-pack-action@v0.4.0
+#      - uses: jetli/wasm-bindgen-action@v0.2.0
+#      - run: wasm-pack test --node
+
+  maturin-build:
    name: "maturin build"
    runs-on: ubuntu-latest
    steps:
@@ -131,7 +172,7 @@ jobs:
          override: true
      - uses: actions/setup-python@v4
        with:
-          python-version: "3.10"
+          python-version: "3.11"
      - run: pip install maturin
      - uses: actions/cache@v3
        env:
--- a/.github/workflows/playground.yaml
+++ b/.github/workflows/playground.yaml
@@ -0,0 +1,50 @@
+name: "[Playground] Release"
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+
+env:
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  RUSTUP_MAX_RETRIES: 10
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    env:
+       CF_API_TOKEN_EXISTS: ${{ secrets.CF_API_TOKEN != '' }}
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly-2022-11-01
+          override: true
+          target: wasm32-unknown-unknown
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: "npm"
+          cache-dependency-path: playground/package-lock.json
+      - uses: jetli/wasm-pack-action@v0.4.0
+      - uses: jetli/wasm-bindgen-action@v0.2.0
+      - name: "Run wasm-pack"
+        run: wasm-pack build --target web --out-dir playground/src/pkg
+      - name: "Install Node dependencies"
+        run: npm ci
+        working-directory: playground
+      - name: "Run TypeScript checks"
+        run: npm run check
+        working-directory: playground
+      - name: "Build JavaScript bundle"
+        run: npm run build
+        working-directory: playground
+      - name: "Deploy to Cloudflare Pages"
+        if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
+        uses: cloudflare/wrangler-action@2.0.0
+        with:
+          apiToken: ${{ secrets.CF_API_TOKEN }}
+          accountId: ${{ secrets.CF_ACCOUNT_ID }}
+          command: pages publish playground/dist --project-name=ruff --branch ${GITHUB_HEAD_REF} --commit-hash ${GITHUB_SHA}
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
  - repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: v0.0.192
+    rev: v0.0.204
    hooks:
      - id: ruff

--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -48,8 +48,8 @@ prior to merging.
 There are four phases to adding a new lint rule:

 1. Define the rule in `src/checks.rs`.
-2. Define the _logic_ for triggering the rule in `src/check_ast.rs` (for AST-based checks),
-   `src/check_tokens.rs` (for token-based checks), or `src/check_lines.rs` (for text-based checks).
+2. Define the _logic_ for triggering the rule in `src/checkers/ast.rs` (for AST-based checks),
+   `src/checkers/tokens.rs` (for token-based checks), or `src/checkers/lines.rs` (for text-based checks).
 3. Add a test fixture.
 4. Update the generated files (documentation and generated code).

@@ -59,18 +59,20 @@ pattern implemented therein.

 To trigger the rule, you'll likely want to augment the logic in `src/check_ast.rs`, which defines
 the Python AST visitor, responsible for iterating over the abstract syntax tree and collecting
-lint-rule violations as it goes. If you need to inspect the AST, you can run `cargo dev print-ast`
-with a Python file. Grep for the `Check::new` invocations to understand how other, similar rules
-are implemented.
+lint-rule violations as it goes. If you need to inspect the AST, you can run
+`cargo +nightly dev print-ast` with a Python file. Grep for the `Check::new` invocations to
+understand how other, similar rules are implemented.

 To add a test fixture, create a file under `resources/test/fixtures`, named to match the `CheckCode`
 you defined earlier (e.g., `E402.py`). This file should contain a variety of violations and
 non-violations designed to evaluate and demonstrate the behavior of your lint rule. Run Ruff locally
-with (e.g.) `cargo run resources/test/fixtures/E402.py --no-cache`. Once you're satisfied with the
+with (e.g.) `cargo run resources/test/fixtures/E402.py --no-cache --select E402`. Once you're satisfied with the
 output, codify the behavior as a snapshot test by adding a new `testcase` macro to the `mod tests`
 section of `src/linter.rs`, like so:

 ```rust
+use test_case::test_case;
+
 #[test_case(CheckCode::A001, Path::new("A001.py"); "A001")]
 ...
 ```
@@ -79,9 +81,7 @@ Then, run `cargo test`. Your test will fail, but you'll be prompted to follow-up
 `cargo insta review`. Accept the generated snapshot, then commit the snapshot file alongside the
 rest of your changes.

-Finally, to update the documentation, run `cargo dev generate-rules-table` from the repo root. To
-update the generated prefix map, run `cargo dev generate-check-code-prefix`. Both of these commands
-should be run whenever a new check is added to the codebase.
+Finally, regenerate the documentation and generated code with `cargo +nightly dev generate-all`.

 ### Example: Adding a new configuration option

@@ -105,7 +105,7 @@ You may also want to add the new configuration option to the `flake8-to-ruff` to
 responsible for converting `flake8` configuration files to Ruff's TOML format. This logic
 lives in `flake8_to_ruff/src/converter.rs`.

-To update the documentation for supported configuration options, run `cargo dev generate-options`.
+Finally, regenerate the documentation and generated code with `cargo +nightly dev generate-all`.

 ## Release process

--- a/Cargo.lock
+++ b/Cargo.lock
@@ -61,9 +61,9 @@ dependencies = [

 [[package]]
 name = "anyhow"
-version = "1.0.66"
+version = "1.0.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "216261ddc8289130e551ddcd5ce8a064710c0d064a4d2895c67151c92b5443f6"
+checksum = "2cb2f989d18dd141ab8ae82f64d1a8cdd37e0840f73a406896cf5e99502fab61"

 [[package]]
 name = "ascii"
@@ -86,7 +86,7 @@ version = "2.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fa3d466004a8b4cb1bc34044240a2fd29d17607e2e3bd613eb44fd48e8100da3"
 dependencies = [
- "bstr 1.0.1",
+ "bstr 1.1.0",
 "doc-comment",
 "predicates",
 "predicates-core",
@@ -160,9 +160,9 @@ dependencies = [

 [[package]]
 name = "bstr"
-version = "1.0.1"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fca0852af221f458706eb0725c03e4ed6c46af9ac98e6a689d5e634215d594dd"
+checksum = "b45ea9b00a7b3f2988e9a65ad3917e62123c38dba709b666506207be96d1790b"
 dependencies = [
 "memchr",
 "once_cell",
@@ -193,9 +193,9 @@ checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"

 [[package]]
 name = "cc"
-version = "1.0.77"
+version = "1.0.78"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9f73505338f7d905b19d18738976aae232eb46b8efc15554ffc56deb5d9ebe4"
+checksum = "a20104e2335ce8a659d6dd92a51a767a0c062599c73b343fd152cb401e828c3d"

 [[package]]
 name = "cfg-if"
@@ -280,9 +280,9 @@ dependencies = [

 [[package]]
 name = "clap"
-version = "4.0.29"
+version = "4.0.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d63b9e9c07271b9957ad22c173bae2a4d9a81127680962039296abcd2f8251d"
+checksum = "a7db700bc935f9e43e88d00b0850dae18a63773cfbec6d8e070fccf7fef89a39"
 dependencies = [
 "bitflags",
 "clap_derive",
@@ -295,11 +295,11 @@ dependencies = [

 [[package]]
 name = "clap_complete"
-version = "4.0.6"
+version = "4.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7b3c9eae0de7bf8e3f904a5e40612b21fb2e2e566456d177809a48b892d24da"
+checksum = "10861370d2ba66b0f5989f83ebf35db6421713fd92351790e7fdd6c36774c56b"
 dependencies = [
- "clap 4.0.29",
+ "clap 4.0.32",
 ]

 [[package]]
@@ -308,7 +308,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4160b4a4f72ef58bd766bad27c09e6ef1cc9d82a22f6a0f55d152985a4a48e31"
 dependencies = [
- "clap 4.0.29",
+ "clap 4.0.32",
 "clap_complete",
 "clap_complete_fig",
 ]
@@ -319,7 +319,7 @@ version = "4.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "46b30e010e669cd021e5004f3be26cff6b7c08d2a8a0d65b48d43a8cc0efd6c3"
 dependencies = [
- "clap 4.0.29",
+ "clap 4.0.32",
 "clap_complete",
 ]

@@ -422,6 +422,26 @@ dependencies = [
 "winapi",
 ]

+[[package]]
+name = "console_error_panic_hook"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a06aeb73f470f66dcdbf7223caeebb85984942f22f1adb2a088cf9668146bbbc"
+dependencies = [
+ "cfg-if 1.0.0",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "console_log"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "501a375961cef1a0d44767200e66e4a559283097e91d0730b1d75dfb2f8a1494"
+dependencies = [
+ "log",
+ "web-sys",
+]
+
 [[package]]
 name = "core-foundation-sys"
 version = "0.8.3"
@@ -524,9 +544,9 @@ checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"

 [[package]]
 name = "cxx"
-version = "1.0.83"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bdf07d07d6531bfcdbe9b8b739b104610c6508dcc4d63b410585faf338241daf"
+checksum = "5add3fc1717409d029b20c5b6903fc0c0b02fa6741d820054f4a2efa5e5816fd"
 dependencies = [
 "cc",
 "cxxbridge-flags",
@@ -536,9 +556,9 @@ dependencies = [

 [[package]]
 name = "cxx-build"
-version = "1.0.83"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d2eb5b96ecdc99f72657332953d4d9c50135af1bac34277801cc3937906ebd39"
+checksum = "b4c87959ba14bc6fbc61df77c3fcfe180fc32b93538c4f1031dd802ccb5f2ff0"
 dependencies = [
 "cc",
 "codespan-reporting",
@@ -551,15 +571,15 @@ dependencies = [

 [[package]]
 name = "cxxbridge-flags"
-version = "1.0.83"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac040a39517fd1674e0f32177648334b0f4074625b5588a64519804ba0553b12"
+checksum = "69a3e162fde4e594ed2b07d0f83c6c67b745e7f28ce58c6df5e6b6bef99dfb59"

 [[package]]
 name = "cxxbridge-macro"
-version = "1.0.83"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1362b0ddcfc4eb0a1f57b68bd77dd99f0e826958a96abd0ae9bd092e114ffed6"
+checksum = "3e7e2adeb6a0d4a282e581096b06e1791532b7d576dcde5ccd9382acf55db8e6"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -644,6 +664,12 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10"

+[[package]]
+name = "dyn-clone"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9b0705efd4599c15a38151f4721f7bc388306f61084d3bfd50bd07fbca5cb60"
+
 [[package]]
 name = "either"
 version = "1.8.0"
@@ -706,9 +732,9 @@ dependencies = [

 [[package]]
 name = "filetime"
-version = "0.2.18"
+version = "0.2.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b9663d381d07ae25dc88dbdf27df458faa83a9b25336bcac83d5e452b5fc9d3"
+checksum = "4e884668cd0c7480504233e951174ddc3b382f7c2666e3b7310b5c4e7b0c37f9"
 dependencies = [
 "cfg-if 1.0.0",
 "libc",
@@ -724,10 +750,10 @@ checksum = "0ce7134b9999ecaf8bcd65542e436736ef32ddca1b3e06094cb6ec5755203b80"

 [[package]]
 name = "flake8-to-ruff"
-version = "0.0.192-dev.0"
+version = "0.0.204-dev.0"
 dependencies = [
 "anyhow",
- "clap 4.0.29",
+ "clap 4.0.32",
 "configparser",
 "once_cell",
 "regex",
@@ -946,9 +972,9 @@ dependencies = [

 [[package]]
 name = "insta"
-version = "1.22.0"
+version = "1.23.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "197f4e300af8b23664d4077bf5c40e0afa9ba66a567bb5a51d3def3c7b287d1c"
+checksum = "e48b08a091dfe5b09a6a9688c468fdd5b4396e92ce09e2eb932f0884b02788a4"
 dependencies = [
 "console",
 "lazy_static",
@@ -979,9 +1005,9 @@ dependencies = [

 [[package]]
 name = "is-terminal"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "927609f78c2913a6f6ac3c27a4fe87f43e2a35367c0c4b0f8265e8f49a104330"
+checksum = "28dfb6c8100ccc63462345b67d1bbc3679177c75ee4bf59bf29c8b1d110b8189"
 dependencies = [
 "hermit-abi 0.2.6",
 "io-lifetimes",
@@ -1000,9 +1026,9 @@ dependencies = [

 [[package]]
 name = "itoa"
-version = "1.0.4"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4217ad341ebadf8d8e724e264f13e593e0648f5b3e94b3896a5df283be015ecc"
+checksum = "fad582f4b9e86b6caa621cabeb0963332d92eea04729ab12892c2533951e6440"

 [[package]]
 name = "joinery"
@@ -1109,9 +1135,9 @@ dependencies = [

 [[package]]
 name = "libc"
-version = "0.2.138"
+version = "0.2.139"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
+checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"

 [[package]]
 name = "libcst"
@@ -1139,9 +1165,9 @@ dependencies = [

 [[package]]
 name = "link-cplusplus"
-version = "1.0.7"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9272ab7b96c9046fbc5bc56c06c117cb639fe2d509df0c421cad82d2915cf369"
+checksum = "ecd207c9c713c34f95a097a5b029ac2ce6010530c7b49d7fea24d977dede04f5"
 dependencies = [
 "cc",
 ]
@@ -1154,9 +1180,9 @@ checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"

 [[package]]
 name = "linux-raw-sys"
-version = "0.1.3"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f9f08d8963a6c613f4b1a78f4f4a4dbfadf8e6545b2d72861731e4858b8b47f"
+checksum = "f051f77a7c8e6957c0696eac88f26b0117e54f52d3fc682ab19397a8812846a4"

 [[package]]
 name = "lock_api"
@@ -1228,6 +1254,12 @@ dependencies = [
 "windows-sys",
 ]

+[[package]]
+name = "natord"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "308d96db8debc727c3fd9744aac51751243420e46edf401010908da7f8d5e57c"
+
 [[package]]
 name = "new_debug_unreachable"
 version = "1.0.4"
@@ -1328,11 +1360,11 @@ dependencies = [

 [[package]]
 name = "num_cpus"
-version = "1.14.0"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6058e64324c71e02bc2b150e4f3bc8286db6c83092132ffa3f6b1eab0f9def5"
+checksum = "0fac9e2da13b5eb447a6ce3d392f23a29d8694bff781bf03a16cd9ac8697593b"
 dependencies = [
- "hermit-abi 0.1.19",
+ "hermit-abi 0.2.6",
 "libc",
 ]

@@ -1379,9 +1411,9 @@ dependencies = [

 [[package]]
 name = "paste"
-version = "1.0.9"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1de2e551fb905ac83f73f7aedf2f0cb4a0da7e35efa24a202a936269f1f18e1"
+checksum = "d01a5bd0424d00070b0098dd17ebca6f961a959dead1dbcbbbc1d1cd8d3deeba"

 [[package]]
 name = "path-absolutize"
@@ -1619,9 +1651,9 @@ dependencies = [

 [[package]]
 name = "proc-macro2"
-version = "1.0.47"
+version = "1.0.49"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ea3d908b0e36316caf9e9e2c4625cdde190a7e6f440d794667ed17a1855e725"
+checksum = "57a8eca9f9c4ffde41714334dee777596264c7825420f521abc92b5b5deb63a5"
 dependencies = [
 "unicode-ident",
 ]
@@ -1651,9 +1683,9 @@ dependencies = [

 [[package]]
 name = "quote"
-version = "1.0.21"
+version = "1.0.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179"
+checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
 dependencies = [
 "proc-macro2",
 ]
@@ -1747,11 +1779,10 @@ dependencies = [

 [[package]]
 name = "rayon"
-version = "1.6.0"
+version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e060280438193c554f654141c9ea9417886713b7acd75974c85b18a69a88e0b"
+checksum = "6db3a213adf02b3bcfd2d3846bb41cb22857d131789e01df434fb7e7bc0759b7"
 dependencies = [
- "crossbeam-deque",
 "either",
 "rayon-core",
 ]
@@ -1847,7 +1878,7 @@ dependencies = [

 [[package]]
 name = "ruff"
-version = "0.0.192"
+version = "0.0.204"
 dependencies = [
 "annotate-snippets 0.9.1",
 "anyhow",
@@ -1856,12 +1887,15 @@ dependencies = [
 "bincode",
 "bitflags",
 "cachedir",
+ "cfg-if 1.0.0",
 "chrono",
- "clap 4.0.29",
+ "clap 4.0.32",
 "clap_complete_command",
 "clearscreen",
 "colored",
 "common-path",
+ "console_error_panic_hook",
+ "console_log",
 "criterion",
 "dirs 4.0.0",
 "fern",
@@ -1872,8 +1906,10 @@ dependencies = [
 "ignore",
 "insta",
 "itertools",
+ "js-sys",
 "libcst",
 "log",
+ "natord",
 "nohash-hasher",
 "notify",
 "num-bigint",
@@ -1888,9 +1924,13 @@ dependencies = [
 "rustpython-ast",
 "rustpython-common",
 "rustpython-parser",
+ "schemars",
+ "semver",
 "serde",
+ "serde-wasm-bindgen",
 "serde_json",
 "shellexpand",
+ "similar",
 "strum",
 "strum_macros",
 "test-case",
@@ -1900,14 +1940,16 @@ dependencies = [
 "update-informer",
 "ureq",
 "walkdir",
+ "wasm-bindgen",
+ "wasm-bindgen-test",
 ]

 [[package]]
 name = "ruff_dev"
-version = "0.0.192"
+version = "0.0.204"
 dependencies = [
 "anyhow",
- "clap 4.0.29",
+ "clap 4.0.32",
 "codegen",
 "itertools",
 "libcst",
@@ -1916,13 +1958,16 @@ dependencies = [
 "rustpython-ast",
 "rustpython-common",
 "rustpython-parser",
+ "schemars",
+ "serde_json",
 "strum",
 "strum_macros",
+ "textwrap",
 ]

 [[package]]
 name = "ruff_macros"
-version = "0.0.192"
+version = "0.0.204"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -1938,9 +1983,9 @@ checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"

 [[package]]
 name = "rustix"
-version = "0.36.4"
+version = "0.36.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb93e85278e08bb5788653183213d3a60fc242b10cb9be96586f5a73dcb67c23"
+checksum = "a3807b5d10909833d3e9acd1eb5fb988f79376ff10fce42937de71a449c4c588"
 dependencies = [
 "bitflags",
 "errno",
@@ -1965,7 +2010,7 @@ dependencies = [
 [[package]]
 name = "rustpython-ast"
 version = "0.1.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=c01f014b1269eedcf4bdb45d5fbc62ae2beecf31#c01f014b1269eedcf4bdb45d5fbc62ae2beecf31"
+source = "git+https://github.com/RustPython/RustPython.git?rev=8cb2b8292062adf13bde1b863a9b02c9f0bda3dd#8cb2b8292062adf13bde1b863a9b02c9f0bda3dd"
 dependencies = [
 "num-bigint",
 "rustpython-common",
@@ -1975,7 +2020,7 @@ dependencies = [
 [[package]]
 name = "rustpython-common"
 version = "0.0.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=c01f014b1269eedcf4bdb45d5fbc62ae2beecf31#c01f014b1269eedcf4bdb45d5fbc62ae2beecf31"
+source = "git+https://github.com/RustPython/RustPython.git?rev=8cb2b8292062adf13bde1b863a9b02c9f0bda3dd#8cb2b8292062adf13bde1b863a9b02c9f0bda3dd"
 dependencies = [
 "ascii",
 "cfg-if 1.0.0",
@@ -1998,7 +2043,7 @@ dependencies = [
 [[package]]
 name = "rustpython-compiler-core"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=c01f014b1269eedcf4bdb45d5fbc62ae2beecf31#c01f014b1269eedcf4bdb45d5fbc62ae2beecf31"
+source = "git+https://github.com/RustPython/RustPython.git?rev=8cb2b8292062adf13bde1b863a9b02c9f0bda3dd#8cb2b8292062adf13bde1b863a9b02c9f0bda3dd"
 dependencies = [
 "bincode",
 "bitflags",
@@ -2015,7 +2060,7 @@ dependencies = [
 [[package]]
 name = "rustpython-parser"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=c01f014b1269eedcf4bdb45d5fbc62ae2beecf31#c01f014b1269eedcf4bdb45d5fbc62ae2beecf31"
+source = "git+https://github.com/RustPython/RustPython.git?rev=8cb2b8292062adf13bde1b863a9b02c9f0bda3dd#8cb2b8292062adf13bde1b863a9b02c9f0bda3dd"
 dependencies = [
 "ahash",
 "anyhow",
@@ -2039,15 +2084,15 @@ dependencies = [

 [[package]]
 name = "rustversion"
-version = "1.0.9"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97477e48b4cf8603ad5f7aaf897467cf42ab4218a38ef76fb14c2d6773a6d6a8"
+checksum = "5583e89e108996506031660fe09baa5011b9dd0341b89029313006d1fb508d70"

 [[package]]
 name = "ryu"
-version = "1.0.11"
+version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4501abdff3ae82a1c1b477a17252eb69cee9e66eb915c1abaa4f44d873df9f09"
+checksum = "7b4b9743ed687d4b4bcedf9ff5eaa7398495ae14e61cba0a295704edbc7decde"

 [[package]]
 name = "same-file"
@@ -2058,6 +2103,36 @@ dependencies = [
 "winapi-util",
 ]

+[[package]]
+name = "schemars"
+version = "0.8.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a5fb6c61f29e723026dc8e923d94c694313212abbecbbe5f55a7748eec5b307"
+dependencies = [
+ "dyn-clone",
+ "schemars_derive",
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "schemars_derive"
+version = "0.8.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f188d036977451159430f3b8dc82ec76364a42b7e289c2b18a9a18f4470058e9"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "serde_derive_internals",
+ "syn",
+]
+
+[[package]]
+name = "scoped-tls"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1cf6437eb19a8f4a6cc0f7dca544973b0b78843adbfeb3683d1a94a0024a294"
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
@@ -2066,9 +2141,9 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"

 [[package]]
 name = "scratch"
-version = "1.0.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8132065adcfd6e02db789d9285a0deb2f3fcb04002865ab67d5fb103533898"
+checksum = "ddccb15bcce173023b3fedd9436f882a0739b8dfb45e4f6b6002bee5929f61b2"

 [[package]]
 name = "sct"
@@ -2082,24 +2157,46 @@ dependencies = [

 [[package]]
 name = "semver"
-version = "1.0.14"
+version = "1.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e25dfac463d778e353db5be2449d1cce89bd6fd23c9f1ea21310ce6e5a1b29c4"
+checksum = "58bc9567378fc7690d6b2addae4e60ac2eeea07becb2c64b9f218b53865cba2a"

 [[package]]
 name = "serde"
-version = "1.0.148"
+version = "1.0.151"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e53f64bb4ba0191d6d0676e1b141ca55047d83b74f5607e6d8eb88126c52c2dc"
+checksum = "97fed41fc1a24994d044e6db6935e69511a1153b52c15eb42493b26fa87feba0"
 dependencies = [
 "serde_derive",
 ]

 [[package]]
-name = "serde_derive"
-version = "1.0.148"
+name = "serde-wasm-bindgen"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a55492425aa53521babf6137309e7d34c20bbfbbfcfe2c7f3a047fd1f6b92c0c"
+checksum = "e3b4c031cd0d9014307d82b8abf653c0290fbdaeb4c02d00c63cf52f728628bf"
+dependencies = [
+ "js-sys",
+ "serde",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.151"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "255abe9a125a985c05190d687b320c12f9b1f0b99445e608c21ba0782c719ad8"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_derive_internals"
+version = "0.26.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85bf8229e7920a9f636479437026331ce11aa132b4dde37d121944a44d6e5f3c"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -2108,9 +2205,9 @@ dependencies = [

 [[package]]
 name = "serde_json"
-version = "1.0.89"
+version = "1.0.91"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "020ff22c755c2ed3f8cf162dbb41a7268d934702f3ed3631656ea597e08fc3db"
+checksum = "877c235533714907a8c2464236f5c4b2a17262ef1bd71f38f35ea592c8da6883"
 dependencies = [
 "itoa",
 "ryu",
@@ -2164,9 +2261,9 @@ checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"

 [[package]]
 name = "str_indices"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d9199fa80c817e074620be84374a520062ebac833f358d74b37060ce4a0f2c0"
+checksum = "5f026164926842ec52deb1938fae44f83dfdb82d0a5b0270c5bd5935ab74d6dd"

 [[package]]
 name = "string_cache"
@@ -2211,9 +2308,9 @@ dependencies = [

 [[package]]
 name = "syn"
-version = "1.0.105"
+version = "1.0.107"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60b9b43d45702de4c839cb9b51d9f529c5dd26a4aff255b42b1ebc03e88ee908"
+checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -2318,18 +2415,18 @@ dependencies = [

 [[package]]
 name = "thiserror"
-version = "1.0.37"
+version = "1.0.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10deb33631e3c9018b9baf9dcbbc4f737320d2b576bac10f6aefa048fa407e3e"
+checksum = "6a9cd18aa97d5c45c6603caea1da6628790b37f7a34b6ca89522331c5180fed0"
 dependencies = [
 "thiserror-impl",
 ]

 [[package]]
 name = "thiserror-impl"
-version = "1.0.37"
+version = "1.0.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "982d17546b47146b28f7c22e3d08465f6b8903d0ea13c1660d9d84a6e7adcdbb"
+checksum = "1fb327af4685e4d03fa8cbcf1716380da910eeb2bb8be417e7f9fd3fb164f36f"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -2403,9 +2500,9 @@ dependencies = [

 [[package]]
 name = "toml"
-version = "0.5.9"
+version = "0.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
+checksum = "1333c76748e868a4d9d1017b5ab53171dfd095f70c712fdb4653a406547f598f"
 dependencies = [
 "serde",
 ]
@@ -2492,9 +2589,9 @@ checksum = "099b7128301d285f79ddd55b9a83d5e6b9e97c92e0ea0daebee7263e932de992"

 [[package]]
 name = "unicode-ident"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ceab39d59e4c9499d4e5a8ee0e2735b891bb7308ac83dfb4e80cad195c9f6f3"
+checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"

 [[package]]
 name = "unicode-linebreak"
@@ -2663,6 +2760,18 @@ dependencies = [
 "wasm-bindgen-shared",
 ]

+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23639446165ca5a5de86ae1d8896b737ae80319560fbaa4c2887b7da6e7ebd7d"
+dependencies = [
+ "cfg-if 1.0.0",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
 [[package]]
 name = "wasm-bindgen-macro"
 version = "0.2.83"
@@ -2692,6 +2801,30 @@ version = "0.2.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1c38c045535d93ec4f0b4defec448e4291638ee608530863b1e2ba115d4fff7f"

+[[package]]
+name = "wasm-bindgen-test"
+version = "0.3.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09d2fff962180c3fadf677438054b1db62bee4aa32af26a45388af07d1287e1d"
+dependencies = [
+ "console_error_panic_hook",
+ "js-sys",
+ "scoped-tls",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "wasm-bindgen-test-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-test-macro"
+version = "0.3.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4683da3dfc016f704c9f82cf401520c4f1cb3ee440f7f52b3d6ac29506a49ca7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+]
+
 [[package]]
 name = "web-sys"
 version = "0.3.60"
@@ -2714,9 +2847,9 @@ dependencies = [

 [[package]]
 name = "webpki-roots"
-version = "0.22.5"
+version = "0.22.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "368bfe657969fb01238bb756d351dcade285e0f6fcbd36dcb23359a5169975be"
+checksum = "b6c71e40d7d2c34a5106301fb632274ca37242cd0c9d3e64dbece371a40a2d87"
 dependencies = [
 "webpki",
 ]
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,12 +6,19 @@ members = [

 [package]
 name = "ruff"
-version = "0.0.192"
+version = "0.0.204"
+authors = ["Charlie Marsh <charlie.r.marsh@gmail.com>"]
 edition = "2021"
 rust-version = "1.65.0"
+documentation = "https://github.com/charliermarsh/ruff"
+homepage = "https://github.com/charliermarsh/ruff"
+repository = "https://github.com/charliermarsh/ruff"
+readme = "README.md"
+license = "MIT"

 [lib]
 name = "ruff"
+crate-type = ["cdylib", "rlib"]

 [dependencies]
 annotate-snippets = { version = "0.9.1", features = ["color"] }
@@ -20,9 +27,10 @@ atty = { version = "0.2.14" }
 bincode = { version = "1.3.3" }
 bitflags = { version = "1.3.2" }
 cachedir = { version = "0.3.0" }
+cfg-if = { version = "1.0.0" }
 chrono = { version = "0.4.21", default-features = false, features = ["clock"] }
 clap = { version = "4.0.1", features = ["derive"] }
-clap_complete_command = "0.4.0"
+clap_complete_command = { version = "0.4.0" }
 colored = { version = "2.0.0" }
 common-path = { version = "1.0.0" }
 dirs = { version = "4.0.0" }
@@ -34,45 +42,57 @@ ignore = { version = "0.4.18" }
 itertools = { version = "0.10.5" }
 libcst = { git = "https://github.com/charliermarsh/LibCST", rev = "f2f0b7a487a8725d161fe8b3ed73a6758b21e177" }
 log = { version = "0.4.17" }
+natord = { version = "1.0.9" }
 nohash-hasher = { version = "0.2.0" }
 notify = { version = "5.0.0" }
 num-bigint = { version = "0.4.3" }
 once_cell = { version = "1.16.0" }
 path-absolutize = { version = "3.0.14", features = ["once_cell_cache", "use_unix_paths_on_wasm"] }
 quick-junit = { version = "0.3.2" }
-rayon = { version = "1.5.3" }
 regex = { version = "1.6.0" }
 ropey = { version = "1.5.0", features = ["cr_lines", "simd"], default-features = false }
-ruff_macros = { version = "0.0.192", path = "ruff_macros" }
+ruff_macros = { version = "0.0.204", path = "ruff_macros" }
 rustc-hash = { version = "1.1.0" }
-rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "c01f014b1269eedcf4bdb45d5fbc62ae2beecf31" }
-rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "c01f014b1269eedcf4bdb45d5fbc62ae2beecf31" }
-rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "c01f014b1269eedcf4bdb45d5fbc62ae2beecf31" }
+rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "8cb2b8292062adf13bde1b863a9b02c9f0bda3dd" }
+rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "8cb2b8292062adf13bde1b863a9b02c9f0bda3dd" }
+rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "8cb2b8292062adf13bde1b863a9b02c9f0bda3dd" }
+schemars = { version = "0.8.11" }
+semver = { version = "1.0.16" }
 serde = { version = "1.0.147", features = ["derive"] }
 serde_json = { version = "1.0.87" }
 shellexpand = { version = "3.0.0" }
+similar = { version = "2.2.1" }
 strum = { version = "0.24.1", features = ["strum_macros"] }
 strum_macros = { version = "0.24.3" }
 textwrap = { version = "0.16.0" }
 titlecase = { version = "2.2.1" }
 toml = { version = "0.5.9" }
-update-informer = { version = "0.5.0", default-features = false, features = ["pypi"], optional = true }
 walkdir = { version = "2.3.2" }

 [target.'cfg(not(target_family = "wasm"))'.dependencies]
-clearscreen = { version = "1.0.10" } # uses which
+clearscreen = { version = "1.0.10" }
+rayon = { version = "1.5.3" }
+update-informer = { version = "0.5.0", default-features = false, features = ["pypi"], optional = true }

 # https://docs.rs/getrandom/0.2.7/getrandom/#webassembly-support
 # For (future) wasm-pack support
 [target.'cfg(all(target_family = "wasm", target_os = "unknown"))'.dependencies]
 getrandom = { version = "0.2.7", features = ["js"] }
+console_error_panic_hook = { version = "0.1.7" }
+console_log = { version = "0.2.0" }
+serde-wasm-bindgen = { version = "0.4" }
+js-sys = { version = "0.3.60" }
+wasm-bindgen = { version = "0.2.83" }

 [dev-dependencies]
-assert_cmd = { version = "2.0.4" }
-criterion = { version = "0.4.0" }
 insta = { version = "1.19.1", features = ["yaml"] }
 test-case = { version = "2.2.2" }
 ureq = { version = "2.5.0", features = [] }
+wasm-bindgen-test = { version = "0.3.33" }
+
+[target.'cfg(not(target_family = "wasm"))'.dev-dependencies]
+assert_cmd = { version = "2.0.4" }
+criterion = { version = "0.4.0" }

 [features]
 default = ["update-informer"]
@@ -90,6 +110,11 @@ opt-level = 3
 [profile.dev.package.similar]
 opt-level = 3

+# Reduce complexity of a parser function that would trigger a locals limit in a wasm tool.
+# https://github.com/bytecodealliance/wasm-tools/blob/b5c3d98e40590512a3b12470ef358d5c7b983b15/crates/wasmparser/src/limits.rs#L29
+[profile.dev.package.rustpython-parser]
+opt-level = 1
+
 [[bench]]
 name = "source_code_locator"
 harness = false
--- a/25
+++ b/25
@@ -388,6 +388,31 @@ are:
    SOFTWARE.
  """

+- flake8-implicit-str-concat, licensed as follows:
+  """
+    The MIT License (MIT)
+
+    Copyright (c) 2019 Dylan Turner
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+  """
+
 - flake8-import-conventions, licensed as follows:
  """
    MIT License
--- a/README.md
+++ b/README.md
--- a/flake8_to_ruff/Cargo.lock
+++ b/flake8_to_ruff/Cargo.lock
@@ -771,7 +771,7 @@ checksum = "0ce7134b9999ecaf8bcd65542e436736ef32ddca1b3e06094cb6ec5755203b80"

 [[package]]
 name = "flake8_to_ruff"
-version = "0.0.192"
+version = "0.0.204"
 dependencies = [
 "anyhow",
 "clap",
@@ -1975,7 +1975,7 @@ dependencies = [

 [[package]]
 name = "ruff"
-version = "0.0.192"
+version = "0.0.204"
 dependencies = [
 "anyhow",
 "bincode",
@@ -2028,7 +2028,7 @@ dependencies = [
 [[package]]
 name = "rustpython-ast"
 version = "0.1.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=c01f014b1269eedcf4bdb45d5fbc62ae2beecf31#c01f014b1269eedcf4bdb45d5fbc62ae2beecf31"
+source = "git+https://github.com/RustPython/RustPython.git?rev=1b6cb170e925a43d605b3fed9f6b878e63e47744#1b6cb170e925a43d605b3fed9f6b878e63e47744"
 dependencies = [
 "num-bigint",
 "rustpython-common",
@@ -2038,7 +2038,7 @@ dependencies = [
 [[package]]
 name = "rustpython-common"
 version = "0.0.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=c01f014b1269eedcf4bdb45d5fbc62ae2beecf31#c01f014b1269eedcf4bdb45d5fbc62ae2beecf31"
+source = "git+https://github.com/RustPython/RustPython.git?rev=1b6cb170e925a43d605b3fed9f6b878e63e47744#1b6cb170e925a43d605b3fed9f6b878e63e47744"
 dependencies = [
 "ascii",
 "cfg-if 1.0.0",
@@ -2061,7 +2061,7 @@ dependencies = [
 [[package]]
 name = "rustpython-compiler-core"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=c01f014b1269eedcf4bdb45d5fbc62ae2beecf31#c01f014b1269eedcf4bdb45d5fbc62ae2beecf31"
+source = "git+https://github.com/RustPython/RustPython.git?rev=1b6cb170e925a43d605b3fed9f6b878e63e47744#1b6cb170e925a43d605b3fed9f6b878e63e47744"
 dependencies = [
 "bincode",
 "bitflags",
@@ -2078,7 +2078,7 @@ dependencies = [
 [[package]]
 name = "rustpython-parser"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=c01f014b1269eedcf4bdb45d5fbc62ae2beecf31#c01f014b1269eedcf4bdb45d5fbc62ae2beecf31"
+source = "git+https://github.com/RustPython/RustPython.git?rev=1b6cb170e925a43d605b3fed9f6b878e63e47744#1b6cb170e925a43d605b3fed9f6b878e63e47744"
 dependencies = [
 "ahash",
 "anyhow",
--- a/flake8_to_ruff/Cargo.toml
+++ b/flake8_to_ruff/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "flake8-to-ruff"
-version = "0.0.192-dev.0"
+version = "0.0.204-dev.0"
 edition = "2021"

 [lib]
--- a/flake8_to_ruff/pyproject.toml
+++ b/flake8_to_ruff/pyproject.toml
@@ -12,6 +12,7 @@ classifiers = [
    "Programming Language :: Python :: 3.8",
    "Programming Language :: Python :: 3.9",
    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
    "Programming Language :: Python :: 3 :: Only",
    "Topic :: Software Development :: Libraries :: Python Modules",
    "Topic :: Software Development :: Quality Assurance",
--- a/flake8_to_ruff/src/converter.rs
+++ b/flake8_to_ruff/src/converter.rs
@@ -4,11 +4,12 @@ use anyhow::Result;
 use ruff::checks_gen::CheckCodePrefix;
 use ruff::flake8_quotes::settings::Quote;
 use ruff::flake8_tidy_imports::settings::Strictness;
+use ruff::pydocstyle::settings::Convention;
 use ruff::settings::options::Options;
 use ruff::settings::pyproject::Pyproject;
 use ruff::{
    flake8_annotations, flake8_bugbear, flake8_errmsg, flake8_quotes, flake8_tidy_imports, mccabe,
-    pep8_naming,
+    pep8_naming, pydocstyle,
 };

 use crate::black::Black;
@@ -67,10 +68,7 @@ pub fn convert(
                    }
                    let from_codes = plugin::infer_plugins_from_codes(&referenced_codes);
                    if !from_codes.is_empty() {
-                        eprintln!(
-                            "Inferred plugins from referenced check codes: {:#?}",
-                            from_codes
-                        );
+                        eprintln!("Inferred plugins from referenced check codes: {from_codes:#?}");
                    }
                    from_options.into_iter().chain(from_codes).collect()
                }),
@@ -94,6 +92,7 @@ pub fn convert(
    let mut flake8_tidy_imports = flake8_tidy_imports::settings::Options::default();
    let mut mccabe = mccabe::settings::Options::default();
    let mut pep8_naming = pep8_naming::settings::Options::default();
+    let mut pydocstyle = pydocstyle::settings::Options::default();
    for (key, value) in flake8 {
        if let Some(value) = value {
            match key.as_str() {
@@ -165,17 +164,17 @@ pub fn convert(
                // flake8-quotes
                "quotes" | "inline-quotes" | "inline_quotes" => match value.trim() {
                    "'" | "single" => flake8_quotes.inline_quotes = Some(Quote::Single),
-                    "\"" | "double" => flake8_quotes.inline_quotes = Some(Quote::Single),
+                    "\"" | "double" => flake8_quotes.inline_quotes = Some(Quote::Double),
                    _ => eprintln!("Unexpected '{key}' value: {value}"),
                },
                "multiline-quotes" | "multiline_quotes" => match value.trim() {
                    "'" | "single" => flake8_quotes.multiline_quotes = Some(Quote::Single),
-                    "\"" | "double" => flake8_quotes.multiline_quotes = Some(Quote::Single),
+                    "\"" | "double" => flake8_quotes.multiline_quotes = Some(Quote::Double),
                    _ => eprintln!("Unexpected '{key}' value: {value}"),
                },
                "docstring-quotes" | "docstring_quotes" => match value.trim() {
                    "'" | "single" => flake8_quotes.docstring_quotes = Some(Quote::Single),
-                    "\"" | "double" => flake8_quotes.docstring_quotes = Some(Quote::Single),
+                    "\"" | "double" => flake8_quotes.docstring_quotes = Some(Quote::Double),
                    _ => eprintln!("Unexpected '{key}' value: {value}"),
                },
                "avoid-escape" | "avoid_escape" => match parser::parse_bool(value.as_ref()) {
@@ -203,9 +202,12 @@ pub fn convert(
                    _ => eprintln!("Unexpected '{key}' value: {value}"),
                },
                // flake8-docstrings
-                "docstring-convention" => {
-                    // No-op (handled above).
-                }
+                "docstring-convention" => match value.trim() {
+                    "google" => pydocstyle.convention = Some(Convention::Google),
+                    "numpy" => pydocstyle.convention = Some(Convention::Numpy),
+                    "pep257" | "all" => pydocstyle.convention = None,
+                    _ => eprintln!("Unexpected '{key}' value: {value}"),
+                },
                // mccabe
                "max-complexity" | "max_complexity" => match value.clone().parse::<usize>() {
                    Ok(max_complexity) => mccabe.max_complexity = Some(max_complexity),
@@ -250,6 +252,9 @@ pub fn convert(
    if pep8_naming != pep8_naming::settings::Options::default() {
        options.pep8_naming = Some(pep8_naming);
    }
+    if pydocstyle != pydocstyle::settings::Options::default() {
+        options.pydocstyle = Some(pydocstyle);
+    }

    // Extract any settings from the existing `pyproject.toml`.
    if let Some(black) = black {
@@ -274,9 +279,10 @@ mod tests {

    use anyhow::Result;
    use ruff::checks_gen::CheckCodePrefix;
-    use ruff::flake8_quotes;
+    use ruff::pydocstyle::settings::Convention;
    use ruff::settings::options::Options;
    use ruff::settings::pyproject::Pyproject;
+    use ruff::{flake8_quotes, pydocstyle};

    use crate::converter::convert;
    use crate::plugin::Plugin;
@@ -290,6 +296,7 @@ mod tests {
        )?;
        let expected = Pyproject::new(Options {
            allowed_confusables: None,
+            cache_dir: None,
            dummy_variable_rgx: None,
            exclude: None,
            extend: None,
@@ -298,6 +305,7 @@ mod tests {
            extend_select: None,
            external: None,
            fix: None,
+            fix_only: None,
            fixable: None,
            format: None,
            force_exclude: None,
@@ -305,6 +313,7 @@ mod tests {
            ignore_init_module_imports: None,
            line_length: None,
            per_file_ignores: None,
+            required_version: None,
            respect_gitignore: None,
            select: Some(vec![
                CheckCodePrefix::E,
@@ -315,6 +324,7 @@ mod tests {
            src: None,
            target_version: None,
            unfixable: None,
+            update_check: None,
            flake8_annotations: None,
            flake8_bugbear: None,
            flake8_errmsg: None,
@@ -325,6 +335,7 @@ mod tests {
            isort: None,
            mccabe: None,
            pep8_naming: None,
+            pydocstyle: None,
            pyupgrade: None,
        });
        assert_eq!(actual, expected);
@@ -344,6 +355,7 @@ mod tests {
        )?;
        let expected = Pyproject::new(Options {
            allowed_confusables: None,
+            cache_dir: None,
            dummy_variable_rgx: None,
            exclude: None,
            extend: None,
@@ -352,6 +364,7 @@ mod tests {
            extend_select: None,
            external: None,
            fix: None,
+            fix_only: None,
            fixable: None,
            format: None,
            force_exclude: None,
@@ -359,6 +372,7 @@ mod tests {
            ignore_init_module_imports: None,
            line_length: Some(100),
            per_file_ignores: None,
+            required_version: None,
            respect_gitignore: None,
            select: Some(vec![
                CheckCodePrefix::E,
@@ -369,6 +383,7 @@ mod tests {
            src: None,
            target_version: None,
            unfixable: None,
+            update_check: None,
            flake8_annotations: None,
            flake8_bugbear: None,
            flake8_errmsg: None,
@@ -379,6 +394,7 @@ mod tests {
            isort: None,
            mccabe: None,
            pep8_naming: None,
+            pydocstyle: None,
            pyupgrade: None,
        });
        assert_eq!(actual, expected);
@@ -398,6 +414,7 @@ mod tests {
        )?;
        let expected = Pyproject::new(Options {
            allowed_confusables: None,
+            cache_dir: None,
            dummy_variable_rgx: None,
            exclude: None,
            extend: None,
@@ -406,6 +423,7 @@ mod tests {
            extend_select: None,
            external: None,
            fix: None,
+            fix_only: None,
            fixable: None,
            format: None,
            force_exclude: None,
@@ -413,6 +431,7 @@ mod tests {
            ignore_init_module_imports: None,
            line_length: Some(100),
            per_file_ignores: None,
+            required_version: None,
            respect_gitignore: None,
            select: Some(vec![
                CheckCodePrefix::E,
@@ -423,6 +442,7 @@ mod tests {
            src: None,
            target_version: None,
            unfixable: None,
+            update_check: None,
            flake8_annotations: None,
            flake8_bugbear: None,
            flake8_errmsg: None,
@@ -433,6 +453,7 @@ mod tests {
            isort: None,
            mccabe: None,
            pep8_naming: None,
+            pydocstyle: None,
            pyupgrade: None,
        });
        assert_eq!(actual, expected);
@@ -452,6 +473,7 @@ mod tests {
        )?;
        let expected = Pyproject::new(Options {
            allowed_confusables: None,
+            cache_dir: None,
            dummy_variable_rgx: None,
            exclude: None,
            extend: None,
@@ -460,6 +482,7 @@ mod tests {
            extend_select: None,
            external: None,
            fix: None,
+            fix_only: None,
            fixable: None,
            format: None,
            force_exclude: None,
@@ -467,6 +490,7 @@ mod tests {
            ignore_init_module_imports: None,
            line_length: None,
            per_file_ignores: None,
+            required_version: None,
            respect_gitignore: None,
            select: Some(vec![
                CheckCodePrefix::E,
@@ -477,6 +501,7 @@ mod tests {
            src: None,
            target_version: None,
            unfixable: None,
+            update_check: None,
            flake8_annotations: None,
            flake8_bugbear: None,
            flake8_errmsg: None,
@@ -487,6 +512,7 @@ mod tests {
            isort: None,
            mccabe: None,
            pep8_naming: None,
+            pydocstyle: None,
            pyupgrade: None,
        });
        assert_eq!(actual, expected);
@@ -506,6 +532,7 @@ mod tests {
        )?;
        let expected = Pyproject::new(Options {
            allowed_confusables: None,
+            cache_dir: None,
            dummy_variable_rgx: None,
            exclude: None,
            extend: None,
@@ -514,6 +541,7 @@ mod tests {
            extend_select: None,
            external: None,
            fix: None,
+            fix_only: None,
            fixable: None,
            format: None,
            force_exclude: None,
@@ -521,6 +549,7 @@ mod tests {
            ignore_init_module_imports: None,
            line_length: None,
            per_file_ignores: None,
+            required_version: None,
            respect_gitignore: None,
            select: Some(vec![
                CheckCodePrefix::E,
@@ -531,6 +560,7 @@ mod tests {
            src: None,
            target_version: None,
            unfixable: None,
+            update_check: None,
            flake8_annotations: None,
            flake8_bugbear: None,
            flake8_errmsg: None,
@@ -546,6 +576,7 @@ mod tests {
            isort: None,
            mccabe: None,
            pep8_naming: None,
+            pydocstyle: None,
            pyupgrade: None,
        });
        assert_eq!(actual, expected);
@@ -568,6 +599,7 @@ mod tests {
        )?;
        let expected = Pyproject::new(Options {
            allowed_confusables: None,
+            cache_dir: None,
            dummy_variable_rgx: None,
            exclude: None,
            extend: None,
@@ -576,6 +608,7 @@ mod tests {
            extend_select: None,
            external: None,
            fix: None,
+            fix_only: None,
            fixable: None,
            format: None,
            force_exclude: None,
@@ -583,6 +616,7 @@ mod tests {
            ignore_init_module_imports: None,
            line_length: None,
            per_file_ignores: None,
+            required_version: None,
            respect_gitignore: None,
            select: Some(vec![
                CheckCodePrefix::D100,
@@ -629,6 +663,7 @@ mod tests {
            src: None,
            target_version: None,
            unfixable: None,
+            update_check: None,
            flake8_annotations: None,
            flake8_bugbear: None,
            flake8_errmsg: None,
@@ -639,6 +674,9 @@ mod tests {
            isort: None,
            mccabe: None,
            pep8_naming: None,
+            pydocstyle: Some(pydocstyle::settings::Options {
+                convention: Some(Convention::Numpy),
+            }),
            pyupgrade: None,
        });
        assert_eq!(actual, expected);
@@ -658,6 +696,7 @@ mod tests {
        )?;
        let expected = Pyproject::new(Options {
            allowed_confusables: None,
+            cache_dir: None,
            dummy_variable_rgx: None,
            exclude: None,
            extend: None,
@@ -666,6 +705,7 @@ mod tests {
            extend_select: None,
            external: None,
            fix: None,
+            fix_only: None,
            fixable: None,
            format: None,
            force_exclude: None,
@@ -673,6 +713,7 @@ mod tests {
            ignore_init_module_imports: None,
            line_length: None,
            per_file_ignores: None,
+            required_version: None,
            respect_gitignore: None,
            select: Some(vec![
                CheckCodePrefix::E,
@@ -684,6 +725,7 @@ mod tests {
            src: None,
            target_version: None,
            unfixable: None,
+            update_check: None,
            flake8_annotations: None,
            flake8_bugbear: None,
            flake8_errmsg: None,
@@ -699,6 +741,7 @@ mod tests {
            isort: None,
            mccabe: None,
            pep8_naming: None,
+            pydocstyle: None,
            pyupgrade: None,
        });
        assert_eq!(actual, expected);
--- a/flake8_to_ruff/src/plugin.rs
+++ b/flake8_to_ruff/src/plugin.rs
@@ -16,16 +16,17 @@ pub enum Plugin {
    Flake8Datetimez,
    Flake8Debugger,
    Flake8Docstrings,
-    Flake8ErrMsg,
    Flake8Eradicate,
+    Flake8ErrMsg,
+    Flake8ImplicitStrConcat,
    Flake8Print,
    Flake8Quotes,
    Flake8Return,
    Flake8Simplify,
    Flake8TidyImports,
    McCabe,
-    PandasVet,
    PEP8Naming,
+    PandasVet,
    Pyupgrade,
 }

@@ -45,6 +46,7 @@ impl FromStr for Plugin {
            "flake8-docstrings" => Ok(Plugin::Flake8Docstrings),
            "flake8-eradicate" => Ok(Plugin::Flake8Eradicate),
            "flake8-errmsg" => Ok(Plugin::Flake8ErrMsg),
+            "flake8-implicit-str-concat" => Ok(Plugin::Flake8ImplicitStrConcat),
            "flake8-print" => Ok(Plugin::Flake8Print),
            "flake8-quotes" => Ok(Plugin::Flake8Quotes),
            "flake8-return" => Ok(Plugin::Flake8Return),
@@ -76,14 +78,15 @@ impl fmt::Debug for Plugin {
                Plugin::Flake8Docstrings => "flake8-docstrings",
                Plugin::Flake8Eradicate => "flake8-eradicate",
                Plugin::Flake8ErrMsg => "flake8-errmsg",
+                Plugin::Flake8ImplicitStrConcat => "flake8-implicit-str-concat",
                Plugin::Flake8Print => "flake8-print",
                Plugin::Flake8Quotes => "flake8-quotes",
                Plugin::Flake8Return => "flake8-return",
                Plugin::Flake8Simplify => "flake8-simplify",
                Plugin::Flake8TidyImports => "flake8-tidy-imports",
                Plugin::McCabe => "mccabe",
-                Plugin::PandasVet => "pandas-vet",
                Plugin::PEP8Naming => "pep8-naming",
+                Plugin::PandasVet => "pandas-vet",
                Plugin::Pyupgrade => "pyupgrade",
            }
        )
@@ -106,6 +109,7 @@ impl Plugin {
            // TODO(charlie): Handle rename of `E` to `ERA`.
            Plugin::Flake8Eradicate => CheckCodePrefix::ERA,
            Plugin::Flake8ErrMsg => CheckCodePrefix::EM,
+            Plugin::Flake8ImplicitStrConcat => CheckCodePrefix::ISC,
            Plugin::Flake8Print => CheckCodePrefix::T2,
            Plugin::Flake8Quotes => CheckCodePrefix::Q,
            Plugin::Flake8Return => CheckCodePrefix::RET,
@@ -146,6 +150,7 @@ impl Plugin {
            }
            Plugin::Flake8Eradicate => vec![CheckCodePrefix::ERA],
            Plugin::Flake8ErrMsg => vec![CheckCodePrefix::EM],
+            Plugin::Flake8ImplicitStrConcat => vec![CheckCodePrefix::ISC],
            Plugin::Flake8Print => vec![CheckCodePrefix::T2],
            Plugin::Flake8Quotes => vec![CheckCodePrefix::Q],
            Plugin::Flake8Return => vec![CheckCodePrefix::RET],
@@ -449,6 +454,7 @@ pub fn infer_plugins_from_codes(codes: &BTreeSet<CheckCodePrefix>) -> Vec<Plugin
        Plugin::Flake8Docstrings,
        Plugin::Flake8Eradicate,
        Plugin::Flake8ErrMsg,
+        Plugin::Flake8ImplicitStrConcat,
        Plugin::Flake8Print,
        Plugin::Flake8Quotes,
        Plugin::Flake8Return,
--- a/playground/.eslintrc
+++ b/playground/.eslintrc
@@ -0,0 +1,25 @@
+{
+  "parser": "@typescript-eslint/parser",
+  "plugins": ["@typescript-eslint", "prettier"],
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/eslint-recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:react/recommended",
+    "plugin:react/jsx-runtime",
+    "plugin:react-hooks/recommended",
+    "plugin:import/recommended",
+    "plugin:import/typescript",
+    "plugin:prettier/recommended"
+  ],
+  "rules": {
+    // Disable some recommended rules that we don't want to enforce.
+    "@typescript-eslint/no-explicit-any": "off",
+    "@typescript-eslint/no-empty-function": "off"
+  },
+  "settings": {
+    "react": {
+      "version": "detect"
+    }
+  }
+}
--- a/playground/.gitignore
+++ b/playground/.gitignore
@@ -0,0 +1,130 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+.cache
+
+# Docusaurus cache and generated files
+.docusaurus
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
--- a/playground/.prettierrc.json
+++ b/playground/.prettierrc.json
@@ -0,0 +1,3 @@
+{
+  "trailingComma": "all"
+}
--- a/playground/README.md
+++ b/playground/README.md
@@ -0,0 +1,14 @@
+# playground
+
+In-browser playground for Ruff. Available [https://ruff.pages.dev/](https://ruff.pages.dev/).
+
+## Getting started
+
+- To build the WASM module, run `wasm-pack build --target web --out-dir playground/src/pkg` from the
+  root directory.
+- Install TypeScript dependencies with: `npm install`.
+- Start the development server with: `npm run dev`.
+
+## Implementation
+
+Design based on [Tailwind Play](https://play.tailwindcss.com/). Themed with [`ayu`](https://github.com/dempfi/ayu).
--- a/playground/index.html
+++ b/playground/index.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta
+      name="description"
+      content="An in-browser playground for Ruff, an extremely fast Python linter written in Rust."
+    />
+    <meta name="keywords" content="ruff, python, rust, webassembly, wasm" />
+    <title>Ruff Playground</title>
+    <link
+      rel="icon"
+      href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>🛠️</text></svg>"
+    />
+    <link rel="stylesheet" href="https://rsms.me/inter/inter.css" />
+  </head>
+  <body>
+    <div id="root"></div>
+    <div style="display: flex; position: fixed; right: 16px; bottom: 16px">
+      <a href="https://GitHub.com/charliermarsh/ruff"
+        ><img
+          src="https://img.shields.io/github/stars/charliermarsh/ruff.svg?style=social&label=GitHub&maxAge=2592000&?logoWidth=100"
+          alt="GitHub stars"
+          style="width: 120px"
+      /></a>
+    </div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>
--- a/playground/package-lock.json
+++ b/playground/package-lock.json
--- a/playground/package.json
+++ b/playground/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "playground",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "build": "tsc && vite build",
+    "check": "npm run lint && npm run tsc",
+    "dev": "vite",
+    "fmt": "prettier --cache -w .",
+    "lint": "eslint --cache --ext .ts,.tsx src",
+    "preview": "vite preview",
+    "tsc": "tsc"
+  },
+  "dependencies": {
+    "@monaco-editor/react": "^4.4.6",
+    "classnames": "^2.3.2",
+    "lz-string": "^1.4.4",
+    "monaco-editor": "^0.34.1",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0"
+  },
+  "devDependencies": {
+    "@types/react": "^18.0.26",
+    "@types/react-dom": "^18.0.9",
+    "@typescript-eslint/eslint-plugin": "^5.47.1",
+    "@typescript-eslint/parser": "^5.47.1",
+    "@vitejs/plugin-react-swc": "^3.0.0",
+    "autoprefixer": "^10.4.13",
+    "eslint": "^8.30.0",
+    "eslint-config-prettier": "^8.5.0",
+    "eslint-plugin-import": "^2.26.0",
+    "eslint-plugin-prettier": "^4.2.1",
+    "eslint-plugin-react": "^7.31.11",
+    "eslint-plugin-react-hooks": "^4.6.0",
+    "postcss": "^8.4.20",
+    "prettier": "^2.8.1",
+    "tailwindcss": "^3.2.4",
+    "typescript": "^4.9.3",
+    "vite": "^4.0.0"
+  }
+}
--- a/playground/postcss.config.cjs
+++ b/playground/postcss.config.cjs
@@ -0,0 +1,6 @@
+module.exports = {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+};
--- a/playground/src/Editor/Editor.tsx
+++ b/playground/src/Editor/Editor.tsx
@@ -0,0 +1,151 @@
+import { useCallback, useEffect, useState } from "react";
+import { DEFAULT_PYTHON_SOURCE } from "../constants";
+import init, { check, Check, currentVersion, defaultSettings } from "../pkg";
+import { ErrorMessage } from "./ErrorMessage";
+import Header from "./Header";
+import { useTheme } from "./theme";
+import { persist, restore, stringify } from "./settings";
+import SettingsEditor from "./SettingsEditor";
+import SourceEditor from "./SourceEditor";
+import MonacoThemes from "./MonacoThemes";
+
+type Tab = "Source" | "Settings";
+
+export default function Editor() {
+  const [initialized, setInitialized] = useState<boolean>(false);
+  const [version, setVersion] = useState<string | null>(null);
+  const [tab, setTab] = useState<Tab>("Source");
+  const [edit, setEdit] = useState<number>(0);
+  const [settingsSource, setSettingsSource] = useState<string | null>(null);
+  const [pythonSource, setPythonSource] = useState<string | null>(null);
+  const [checks, setChecks] = useState<Check[]>([]);
+  const [error, setError] = useState<string | null>(null);
+  const [theme, setTheme] = useTheme();
+
+  useEffect(() => {
+    init().then(() => setInitialized(true));
+  }, []);
+
+  useEffect(() => {
+    if (!initialized || settingsSource == null || pythonSource == null) {
+      return;
+    }
+
+    let config: any;
+    let checks: Check[];
+
+    try {
+      config = JSON.parse(settingsSource);
+    } catch (e) {
+      setChecks([]);
+      setError((e as Error).message);
+      return;
+    }
+
+    try {
+      checks = check(pythonSource, config);
+    } catch (e) {
+      setError(e as string);
+      return;
+    }
+
+    setError(null);
+    setChecks(checks);
+  }, [initialized, settingsSource, pythonSource]);
+
+  useEffect(() => {
+    if (!initialized) {
+      return;
+    }
+
+    if (settingsSource == null || pythonSource == null) {
+      const payload = restore();
+      if (payload) {
+        const [settingsSource, pythonSource] = payload;
+        setSettingsSource(settingsSource);
+        setPythonSource(pythonSource);
+      } else {
+        setSettingsSource(stringify(defaultSettings()));
+        setPythonSource(DEFAULT_PYTHON_SOURCE);
+      }
+    }
+  }, [initialized, settingsSource, pythonSource]);
+
+  useEffect(() => {
+    if (!initialized) {
+      return;
+    }
+
+    setVersion(currentVersion());
+  }, [initialized]);
+
+  const handleShare = useCallback(() => {
+    if (!initialized || settingsSource == null || pythonSource == null) {
+      return;
+    }
+
+    persist(settingsSource, pythonSource);
+  }, [initialized, settingsSource, pythonSource]);
+
+  const handlePythonSourceChange = useCallback((pythonSource: string) => {
+    setEdit((edit) => edit + 1);
+    setPythonSource(pythonSource);
+  }, []);
+
+  const handleSettingsSourceChange = useCallback((settingsSource: string) => {
+    setEdit((edit) => edit + 1);
+    setSettingsSource(settingsSource);
+  }, []);
+
+  return (
+    <main
+      className={
+        "h-full w-full flex flex-auto bg-ayu-background dark:bg-ayu-background-dark"
+      }
+    >
+      <Header
+        edit={edit}
+        tab={tab}
+        theme={theme}
+        version={version}
+        onChangeTab={setTab}
+        onChangeTheme={setTheme}
+        onShare={initialized ? handleShare : undefined}
+      />
+
+      <MonacoThemes />
+
+      <div className={"mt-12 relative flex-auto"}>
+        {initialized && settingsSource != null && pythonSource != null ? (
+          <>
+            <SourceEditor
+              visible={tab === "Source"}
+              source={pythonSource}
+              theme={theme}
+              checks={checks}
+              onChange={handlePythonSourceChange}
+            />
+            <SettingsEditor
+              visible={tab === "Settings"}
+              source={settingsSource}
+              theme={theme}
+              onChange={handleSettingsSourceChange}
+            />
+          </>
+        ) : null}
+      </div>
+      {error && tab === "Source" ? (
+        <div
+          style={{
+            position: "fixed",
+            left: "10%",
+            right: "10%",
+            bottom: "10%",
+          }}
+        >
+          <ErrorMessage>{error}</ErrorMessage>
+        </div>
+      ) : null}
+    </main>
+  );
+}
--- a/playground/src/Editor/ErrorMessage.tsx
+++ b/playground/src/Editor/ErrorMessage.tsx
@@ -0,0 +1,26 @@
+function truncate(str: string, length: number) {
+  if (str.length > length) {
+    return str.slice(0, length) + "...";
+  } else {
+    return str;
+  }
+}
+
+export function ErrorMessage({ children }: { children: string }) {
+  return (
+    <div
+      className="bg-orange-100 border-l-4 border-orange-500 text-orange-700 p-4"
+      role="alert"
+    >
+      <p className="font-bold">Error</p>
+      <p className="block sm:inline">
+        {truncate(
+          children.startsWith("Error: ")
+            ? children.slice("Error: ".length)
+            : children,
+          120,
+        )}
+      </p>
+    </div>
+  );
+}
--- a/playground/src/Editor/Header.tsx
+++ b/playground/src/Editor/Header.tsx
@@ -0,0 +1,99 @@
+import classNames from "classnames";
+import ThemeButton from "./ThemeButton";
+import ShareButton from "./ShareButton";
+import { Theme } from "./theme";
+import VersionTag from "./VersionTag";
+
+export type Tab = "Source" | "Settings";
+
+export default function Header({
+  edit,
+  tab,
+  theme,
+  version,
+  onChangeTab,
+  onChangeTheme,
+  onShare,
+}: {
+  edit: number;
+  tab: Tab;
+  theme: Theme;
+  version: string | null;
+  onChangeTab: (tab: Tab) => void;
+  onChangeTheme: (theme: Theme) => void;
+  onShare?: () => void;
+}) {
+  return (
+    <div
+      className={classNames(
+        "w-full",
+        "flex",
+        "items-center",
+        "justify-between",
+        "flex-none",
+        "pl-5",
+        "sm:pl-6",
+        "pr-4",
+        "lg:pr-6",
+        "absolute",
+        "z-10",
+        "top-0",
+        "left-0",
+        "-mb-px",
+        "antialiased",
+        "border-b",
+        "border-gray-200",
+        "dark:border-gray-800",
+      )}
+    >
+      <div className="flex space-x-5">
+        <button
+          type="button"
+          className={classNames(
+            "relative flex py-3 text-sm leading-6 font-semibold focus:outline-none",
+            tab === "Source"
+              ? "text-ayu-accent"
+              : "text-gray-700 hover:text-gray-900 focus:text-gray-900 dark:text-gray-300 dark:hover:text-white",
+          )}
+          onClick={() => onChangeTab("Source")}
+        >
+          <span
+            className={classNames(
+              "absolute bottom-0 inset-x-0 bg-ayu-accent h-0.5 rounded-full transition-opacity duration-150",
+              tab === "Source" ? "opacity-100" : "opacity-0",
+            )}
+          />
+          Source
+        </button>
+        <button
+          type="button"
+          className={classNames(
+            "relative flex py-3 text-sm leading-6 font-semibold focus:outline-none",
+            tab === "Settings"
+              ? "text-ayu-accent"
+              : "text-gray-700 hover:text-gray-900 focus:text-gray-900 dark:text-gray-300 dark:hover:text-white",
+          )}
+          onClick={() => onChangeTab("Settings")}
+        >
+          <span
+            className={classNames(
+              "absolute bottom-0 inset-x-0 bg-ayu-accent h-0.5 rounded-full transition-opacity duration-150",
+              tab === "Settings" ? "opacity-100" : "opacity-0",
+            )}
+          />
+          Settings
+        </button>
+        {version ? (
+          <div className={"flex items-center"}>
+            <VersionTag>v{version}</VersionTag>
+          </div>
+        ) : null}
+      </div>
+      <div className={"hidden sm:flex items-center min-w-0"}>
+        <ShareButton key={edit} onShare={onShare} />
+        <div className="hidden sm:block mx-6 lg:mx-4 w-px h-6 bg-gray-200 dark:bg-gray-700" />
+        <ThemeButton theme={theme} onChange={onChangeTheme} />
+      </div>
+    </div>
+  );
+}
--- a/playground/src/Editor/MonacoThemes.tsx
+++ b/playground/src/Editor/MonacoThemes.tsx
--- a/playground/src/Editor/SettingsEditor.tsx
+++ b/playground/src/Editor/SettingsEditor.tsx
@@ -0,0 +1,57 @@
+/**
+ * Editor for the settings JSON.
+ */
+
+import Editor, { useMonaco } from "@monaco-editor/react";
+import { useCallback, useEffect } from "react";
+import schema from "../../../ruff.schema.json";
+import { Theme } from "./theme";
+
+export default function SettingsEditor({
+  visible,
+  source,
+  theme,
+  onChange,
+}: {
+  visible: boolean;
+  source: string;
+  theme: Theme;
+  onChange: (source: string) => void;
+}) {
+  const monaco = useMonaco();
+
+  useEffect(() => {
+    monaco?.languages.json.jsonDefaults.setDiagnosticsOptions({
+      schemas: [
+        {
+          uri: "https://raw.githubusercontent.com/charliermarsh/ruff/main/ruff.schema.json",
+          fileMatch: ["*"],
+          schema,
+        },
+      ],
+    });
+  }, [monaco]);
+
+  const handleChange = useCallback(
+    (value: string | undefined) => {
+      onChange(value ?? "");
+    },
+    [onChange],
+  );
+  return (
+    <Editor
+      options={{
+        readOnly: false,
+        minimap: { enabled: false },
+        fontSize: 14,
+        roundedSelection: false,
+        scrollBeyondLastLine: false,
+      }}
+      wrapperProps={visible ? {} : { style: { display: "none" } }}
+      language={"json"}
+      value={source}
+      theme={theme === "light" ? "Ayu-Light" : "Ayu-Dark"}
+      onChange={handleChange}
+    />
+  );
+}
--- a/playground/src/Editor/ShareButton.tsx
+++ b/playground/src/Editor/ShareButton.tsx
@@ -0,0 +1,53 @@
+import { useEffect, useState } from "react";
+
+export default function ShareButton({ onShare }: { onShare?: () => void }) {
+  const [copied, setCopied] = useState(false);
+
+  useEffect(() => {
+    if (copied) {
+      const timeout = setTimeout(() => setCopied(false), 2000);
+      return () => clearTimeout(timeout);
+    }
+  }, [copied]);
+
+  return copied ? (
+    <button
+      type="button"
+      className="relative flex-none rounded-md text-sm font-semibold leading-6 py-1.5 px-3 cursor-auto text-ayu-accent shadow-copied dark:bg-ayu-accent/10"
+    >
+      <span
+        className="absolute inset-0 flex items-center justify-center invisible"
+        aria-hidden="true"
+      >
+        Share
+      </span>
+      <span className="" aria-hidden="false">
+        Copied!
+      </span>
+    </button>
+  ) : (
+    <button
+      type="button"
+      className="relative flex-none rounded-md text-sm font-semibold leading-6 py-1.5 px-3 enabled:hover:bg-ayu-accent/80 bg-ayu-accent text-white shadow-sm dark:shadow-highlight/20 disabled:opacity-50"
+      disabled={!onShare || copied}
+      onClick={
+        onShare
+          ? () => {
+              setCopied(true);
+              onShare();
+            }
+          : undefined
+      }
+    >
+      <span
+        className="absolute inset-0 flex items-center justify-center"
+        aria-hidden="false"
+      >
+        Share
+      </span>
+      <span className="invisible" aria-hidden="true">
+        Copied!
+      </span>
+    </button>
+  );
+}
--- a/playground/src/Editor/SourceEditor.tsx
+++ b/playground/src/Editor/SourceEditor.tsx
@@ -0,0 +1,117 @@
+/**
+ * Editor for the Python source code.
+ */
+
+import Editor, { useMonaco } from "@monaco-editor/react";
+import { MarkerSeverity, MarkerTag } from "monaco-editor";
+import { useCallback, useEffect } from "react";
+import { Check } from "../pkg";
+import { Theme } from "./theme";
+
+export default function SourceEditor({
+  visible,
+  source,
+  theme,
+  checks,
+  onChange,
+}: {
+  visible: boolean;
+  source: string;
+  checks: Check[];
+  theme: Theme;
+  onChange: (pythonSource: string) => void;
+}) {
+  const monaco = useMonaco();
+
+  useEffect(() => {
+    const editor = monaco?.editor;
+    const model = editor?.getModels()[0];
+    if (!editor || !model) {
+      return;
+    }
+
+    editor.setModelMarkers(
+      model,
+      "owner",
+      checks.map((check) => ({
+        startLineNumber: check.location.row,
+        startColumn: check.location.column + 1,
+        endLineNumber: check.end_location.row,
+        endColumn: check.end_location.column + 1,
+        message: `${check.code}: ${check.message}`,
+        severity: MarkerSeverity.Error,
+        tags:
+          check.code === "F401" || check.code === "F841"
+            ? [MarkerTag.Unnecessary]
+            : [],
+      })),
+    );
+
+    const codeActionProvider = monaco?.languages.registerCodeActionProvider(
+      "python",
+      {
+        // @ts-expect-error: The type definition is wrong.
+        provideCodeActions: function (model, position) {
+          const actions = checks
+            .filter((check) => position.startLineNumber === check.location.row)
+            .filter((check) => check.fix)
+            .map((check) => ({
+              title: check.fix
+                ? check.fix.message ?? `Fix ${check.code}`
+                : "Autofix",
+              id: `fix-${check.code}`,
+              kind: "quickfix",
+              edit: check.fix
+                ? {
+                    edits: [
+                      {
+                        resource: model.uri,
+                        versionId: model.getVersionId(),
+                        edit: {
+                          range: {
+                            startLineNumber: check.fix.location.row,
+                            startColumn: check.fix.location.column + 1,
+                            endLineNumber: check.fix.end_location.row,
+                            endColumn: check.fix.end_location.column + 1,
+                          },
+                          text: check.fix.content,
+                        },
+                      },
+                    ],
+                  }
+                : undefined,
+            }));
+          return { actions, dispose: () => {} };
+        },
+      },
+    );
+
+    return () => {
+      codeActionProvider?.dispose();
+    };
+  }, [checks, monaco]);
+
+  const handleChange = useCallback(
+    (value: string | undefined) => {
+      onChange(value ?? "");
+    },
+    [onChange],
+  );
+
+  return (
+    <Editor
+      options={{
+        readOnly: false,
+        minimap: { enabled: false },
+        fontSize: 14,
+        roundedSelection: false,
+        scrollBeyondLastLine: false,
+      }}
+      language={"python"}
+      wrapperProps={visible ? {} : { style: { display: "none" } }}
+      theme={theme === "light" ? "Ayu-Light" : "Ayu-Dark"}
+      value={source}
+      onChange={handleChange}
+    />
+  );
+}
--- a/playground/src/Editor/ThemeButton.tsx
+++ b/playground/src/Editor/ThemeButton.tsx
@@ -0,0 +1,49 @@
+/**
+ * Button to toggle between light and dark mode themes.
+ */
+import { Theme } from "./theme";
+
+export default function ThemeButton({
+  theme,
+  onChange,
+}: {
+  theme: Theme;
+  onChange: (theme: Theme) => void;
+}) {
+  return (
+    <button
+      type="button"
+      className="ml-4 sm:ml-0 ring-1 ring-gray-900/5 shadow-sm hover:bg-gray-50 dark:ring-0 dark:bg-gray-800 dark:hover:bg-gray-700 dark:shadow-highlight/4 group focus:outline-none focus-visible:ring-2 rounded-md focus-visible:ring-ayu-accent dark:focus-visible:ring-2 dark:focus-visible:ring-gray-400"
+      onClick={() => onChange(theme === "light" ? "dark" : "light")}
+    >
+      <span className="sr-only">
+        <span className="dark:hidden">Switch to dark theme</span>
+        <span className="hidden dark:inline">Switch to light theme</span>
+      </span>
+      <svg
+        width="36"
+        height="36"
+        viewBox="-6 -6 36 36"
+        strokeWidth="2"
+        strokeLinecap="round"
+        strokeLinejoin="round"
+        className="stroke-ayu-accent fill-ayu-accent/10 group-hover:stroke-ayu-accent/80 dark:stroke-gray-400 dark:fill-gray-400/20 dark:group-hover:stroke-gray-300"
+      >
+        <g className="dark:opacity-0">
+          <path d="M15 12a3 3 0 1 1-6 0 3 3 0 0 1 6 0Z"></path>
+          <path
+            d="M12 4v.01M17.66 6.345l-.007.007M20.005 12.005h-.01M17.66 17.665l-.007-.007M12 20.01V20M6.34 17.665l.007-.007M3.995 12.005h.01M6.34 6.344l.007.007"
+            fill="none"
+          />
+        </g>
+        <g className="opacity-0 dark:opacity-100">
+          <path d="M16 12a4 4 0 1 1-8 0 4 4 0 0 1 8 0Z" />
+          <path
+            d="M12 3v1M18.66 5.345l-.828.828M21.005 12.005h-1M18.66 18.665l-.828-.828M12 21.01V20M5.34 18.666l.835-.836M2.995 12.005h1.01M5.34 5.344l.835.836"
+            fill="none"
+          />
+        </g>
+      </svg>
+    </button>
+  );
+}
--- a/playground/src/Editor/VersionTag.tsx
+++ b/playground/src/Editor/VersionTag.tsx
@@ -0,0 +1,26 @@
+import classNames from "classnames";
+import { ReactNode } from "react";
+
+export default function VersionTag({ children }: { children: ReactNode }) {
+  return (
+    <div
+      className={classNames(
+        "text-gray-500",
+        "text-xs",
+        "leading-5",
+        "font-semibold",
+        "bg-gray-400/10",
+        "rounded-full",
+        "py-1",
+        "px-3",
+        "flex",
+        "items-center",
+        "dark:bg-gray-800",
+        "dark:text-gray-400",
+        "dark:shadow-highlight/4",
+      )}
+    >
+      {children}
+    </div>
+  );
+}
--- a/playground/src/Editor/index.tsx
+++ b/playground/src/Editor/index.tsx
@@ -0,0 +1,3 @@
+import Editor from "./Editor";
+
+export default Editor;
--- a/playground/src/Editor/settings.ts
+++ b/playground/src/Editor/settings.ts
@@ -0,0 +1,50 @@
+import lzstring from "lz-string";
+
+export type Settings = { [K: string]: any };
+
+/**
+ * Stringify a settings object to JSON.
+ */
+export function stringify(settings: Settings): string {
+  return JSON.stringify(
+    settings,
+    (k, v) => {
+      if (v instanceof Map) {
+        return Object.fromEntries(v.entries());
+      } else {
+        return v;
+      }
+    },
+    2,
+  );
+}
+
+/**
+ * Persist the configuration to a URL.
+ */
+export async function persist(settingsSource: string, pythonSource: string) {
+  const hash = lzstring.compressToEncodedURIComponent(
+    settingsSource + "$$$" + pythonSource,
+  );
+  await navigator.clipboard.writeText(
+    window.location.href.split("#")[0] + "#" + hash,
+  );
+}
+
+/**
+ * Restore the configuration from a URL.
+ */
+export function restore(): [string, string] | null {
+  const value = lzstring.decompressFromEncodedURIComponent(
+    window.location.hash.slice(1),
+  );
+
+  if (value) {
+    const parts = value.split("$$$");
+    const settingsSource = parts[0];
+    const pythonSource = parts[1];
+    return [settingsSource, pythonSource];
+  } else {
+    return null;
+  }
+}
--- a/playground/src/Editor/theme.ts
+++ b/playground/src/Editor/theme.ts
@@ -0,0 +1,35 @@
+/**
+ * Light and dark mode theming.
+ */
+import { useEffect, useState } from "react";
+
+export type Theme = "dark" | "light";
+
+export function useTheme(): [Theme, (theme: Theme) => void] {
+  const [localTheme, setLocalTheme] = useState<Theme>("light");
+
+  const setTheme = (mode: Theme) => {
+    if (mode === "dark") {
+      document.body.classList.add("dark");
+    } else {
+      document.body.classList.remove("dark");
+    }
+    localStorage.setItem("theme", mode);
+    setLocalTheme(mode);
+  };
+
+  useEffect(() => {
+    const initialTheme = localStorage.getItem("theme");
+    if (initialTheme === "dark") {
+      setTheme("dark");
+    } else if (initialTheme === "light") {
+      setTheme("light");
+    } else if (window.matchMedia("(prefers-color-scheme: dark)").matches) {
+      setTheme("dark");
+    } else {
+      setTheme("light");
+    }
+  }, []);
+
+  return [localTheme, setTheme];
+}
--- a/playground/src/Editor/utils.ts
+++ b/playground/src/Editor/utils.ts
@@ -0,0 +1,7 @@
+export async function copyTextToClipboard(text: string) {
+  if ("clipboard" in navigator) {
+    return await navigator.clipboard.writeText(text);
+  } else {
+    return document.execCommand("copy", true, text);
+  }
+}
--- a/playground/src/constants.ts
+++ b/playground/src/constants.ts
@@ -0,0 +1,31 @@
+export const DEFAULT_PYTHON_SOURCE =
+  "import os\n" +
+  "\n" +
+  "# Define a function that takes an integer n and returns the nth number in the Fibonacci\n" +
+  "# sequence.\n" +
+  "def fibonacci(n):\n" +
+  '    """Compute the nth number in the Fibonacci sequence."""\n' +
+  "    x = 1\n" +
+  "    if n == 0:\n" +
+  "        return 0\n" +
+  "    elif n == 1:\n" +
+  "        return 1\n" +
+  "    else:\n" +
+  "        return fibonacci(n - 1) + fibonacci(n - 2)\n" +
+  "\n" +
+  "\n" +
+  "# Use a for loop to generate and print the first 10 numbers in the Fibonacci sequence.\n" +
+  "for i in range(10):\n" +
+  "    print(fibonacci(i))\n" +
+  "\n" +
+  "# Output:\n" +
+  "# 0\n" +
+  "# 1\n" +
+  "# 1\n" +
+  "# 2\n" +
+  "# 3\n" +
+  "# 5\n" +
+  "# 8\n" +
+  "# 13\n" +
+  "# 21\n" +
+  "# 34\n";
--- a/playground/src/index.css
+++ b/playground/src/index.css
@@ -0,0 +1,24 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+* {
+  box-sizing: border-box;
+}
+
+body,
+html,
+#root {
+  margin: 0;
+  height: 100%;
+  width: 100%;
+}
+
+.shadow-copied {
+  --tw-shadow: 0 0 0 1px #f07171, inset 0 0 0 1px #f07171;
+  --tw-shadow-colored: 0 0 0 1px var(--tw-shadow-color),
+    inset 0 0 0 1px var(--tw-shadow-color);
+
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000),
+    var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
--- a/playground/src/main.tsx
+++ b/playground/src/main.tsx
@@ -0,0 +1,10 @@
+import React from "react";
+import ReactDOM from "react-dom/client";
+import Editor from "./Editor";
+import "./index.css";
+
+ReactDOM.createRoot(document.getElementById("root") as HTMLElement).render(
+  <React.StrictMode>
+    <Editor />
+  </React.StrictMode>,
+);
--- a/playground/src/third-party.d.ts
+++ b/playground/src/third-party.d.ts
@@ -0,0 +1,6 @@
+declare module "lz-string" {
+  function decompressFromEncodedURIComponent(
+    input: string | null,
+  ): string | null;
+  function compressToEncodedURIComponent(input: string | null): string;
+}
--- a/playground/src/vite-env.d.ts
+++ b/playground/src/vite-env.d.ts
@@ -0,0 +1 @@
+/// <reference types="vite/client" />
--- a/playground/tailwind.config.cjs
+++ b/playground/tailwind.config.cjs
@@ -0,0 +1,22 @@
+/** @type {import('tailwindcss').Config} */
+const defaultTheme = require("tailwindcss/defaultTheme");
+
+module.exports = {
+  darkMode: "class",
+  content: ["./index.html", "./src/**/*.{js,ts,jsx,tsx}"],
+  theme: {
+    extend: {
+      colors: {
+        "ayu-accent": "#f07171",
+        "ayu-background": {
+          DEFAULT: "#f8f9fa",
+          dark: "#0b0e14",
+        },
+      },
+      fontFamily: {
+        sans: ["Inter var", ...defaultTheme.fontFamily.sans],
+      },
+    },
+  },
+  plugins: [],
+};
--- a/playground/tsconfig.json
+++ b/playground/tsconfig.json
@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "target": "ESNext",
+    "useDefineForClassFields": true,
+    "lib": ["DOM", "DOM.Iterable", "ESNext"],
+    "allowJs": false,
+    "skipLibCheck": true,
+    "esModuleInterop": false,
+    "allowSyntheticDefaultImports": true,
+    "strict": true,
+    "forceConsistentCasingInFileNames": true,
+    "module": "ESNext",
+    "moduleResolution": "Node",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "noEmit": true,
+    "jsx": "react-jsx"
+  },
+  "include": ["src"],
+  "references": [{ "path": "./tsconfig.node.json" }]
+}
--- a/playground/tsconfig.node.json
+++ b/playground/tsconfig.node.json
@@ -0,0 +1,9 @@
+{
+  "compilerOptions": {
+    "composite": true,
+    "module": "ESNext",
+    "moduleResolution": "Node",
+    "allowSyntheticDefaultImports": true
+  },
+  "include": ["vite.config.ts"]
+}
--- a/playground/vite.config.ts
+++ b/playground/vite.config.ts
@@ -0,0 +1,7 @@
+import { defineConfig } from "vite";
+import react from "@vitejs/plugin-react-swc";
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  plugins: [react()],
+});
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,19 @@
+[build-system]
+requires = ["maturin>=0.14,<0.15"]
+build-backend = "maturin"
+
 [project]
 name = "ruff"
+version = "0.0.204"
+description = "An extremely fast Python linter, written in Rust."
+authors = [
+  { name = "Charlie Marsh", email = "charlie.r.marsh@gmail.com" },
+]
+maintainers = [
+  { name = "Charlie Marsh", email = "charlie.r.marsh@gmail.com" },
+]
+requires-python = ">=3.7"
+license = { file = "LICENSE" }
 keywords = ["automation", "flake8", "pycodestyle", "pyflakes", "pylint", "clippy"]
 classifiers = [
    "Development Status :: 3 - Alpha",
@@ -12,28 +26,25 @@ classifiers = [
    "Programming Language :: Python :: 3.8",
    "Programming Language :: Python :: 3.9",
    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
    "Programming Language :: Python :: 3 :: Only",
    "Topic :: Software Development :: Libraries :: Python Modules",
    "Topic :: Software Development :: Quality Assurance",
 ]
-author = "Charlie Marsh"
-author_email = "charlie.r.marsh@gmail.com"
-description = "An extremely fast Python linter, written in Rust."
-requires-python = ">=3.7"
-
-[project.urls]
-repository = "https://github.com/charliermarsh/ruff"
-
-[build-system]
-requires = ["maturin>=0.14,<0.15"]
-build-backend = "maturin"
+urls = { repository = "https://github.com/charliermarsh/ruff-lsp" }

 [tool.maturin]
 bindings = "bin"
 strip = true

 [tool.ruff]
+line-length = 88

 [tool.ruff.isort]
 force-wrap-aliases = true
 combine-as-imports = true
+force-single-line = true
+single-line-exclusions = ["os", "logging.handlers"]
+
+[tool.ruff.pydocstyle]
+convention = "google"
--- a/resources/test/fixtures/flake8_bandit/S105.py
+++ b/resources/test/fixtures/flake8_bandit/S105.py
@@ -51,3 +51,12 @@ secret == "s3cr3t"
 token == "s3cr3t"
 secrete == "s3cr3t"
 password == safe == "s3cr3t"
+
+if token == "1\n2":
+    pass
+
+if token == "3\t4":
+    pass
+
+if token == "5\r6":
+    pass
--- a/resources/test/fixtures/flake8_implicit_str_concat/ISC.py
+++ b/resources/test/fixtures/flake8_implicit_str_concat/ISC.py
@@ -0,0 +1,36 @@
+_ = "a" "b" "c"
+
+_ = "abc" + "def"
+
+_ = "abc" \
+    "def"
+
+_ = (
+  "abc" +
+  "def"
+)
+
+_ = (
+  f"abc" +
+  "def"
+)
+
+_ = (
+  b"abc" +
+  b"def"
+)
+
+_ = (
+  "abc"
+  "def"
+)
+
+_ = (
+  f"abc"
+  "def"
+)
+
+_ = (
+  b"abc"
+  b"def"
+)
--- a/resources/test/fixtures/flake8_return/RET504.py
+++ b/resources/test/fixtures/flake8_return/RET504.py
@@ -237,3 +237,15 @@ def close(self):
            any_failed = True
            report(traceback.format_exc())
    return any_failed
+
+def global_assignment():
+    global X
+    X = 1
+    return X
+
+def nonlocal_assignment():
+    X = 1
+    def inner():
+        nonlocal X
+        X = 1
+        return X
--- a/resources/test/fixtures/flake8_tidy_imports/TID251.py
+++ b/resources/test/fixtures/flake8_tidy_imports/TID251.py
@@ -0,0 +1,33 @@
+## Banned modules ##
+import cgi
+
+from cgi import *
+
+from cgi import a, b, c
+
+# banning a module also bans any submodules
+import cgi.foo.bar
+
+from cgi.foo import bar
+
+from cgi.foo.bar import *
+
+## Banned module members ##
+
+from typing import TypedDict
+
+import typing
+
+# attribute access is checked
+typing.TypedDict
+
+typing.TypedDict.anything
+
+# function calls are checked
+typing.TypedDict()
+
+typing.TypedDict.anything()
+
+# import aliases are resolved
+import typing as totally_not_typing
+totally_not_typing.TypedDict
--- a/resources/test/fixtures/flake8_tidy_imports/TID251_false_positives.py
+++ b/resources/test/fixtures/flake8_tidy_imports/TID251_false_positives.py
@@ -0,0 +1,11 @@
+# module members cannot be imported with that syntax
+import typing.TypedDict
+
+# we don't track reassignments
+import typing, other
+typing = other
+typing.TypedDict()
+
+# yet another false positive
+def foo(typing):
+    typing.TypedDict()
--- a/resources/test/fixtures/flake8_unused_arguments/ARG.py
+++ b/resources/test/fixtures/flake8_unused_arguments/ARG.py
@@ -1,4 +1,5 @@
 from abc import abstractmethod
+from typing import overload
 from typing_extensions import override


@@ -135,3 +136,20 @@ class C:
    @override
    def f(x):
        print("Hello, world!")
+
+
+###
+# Unused arguments attached to overloads (OK).
+###
+@overload
+def f(a: str, b: str) -> str:
+    ...
+
+
+@overload
+def f(a: int, b: int) -> str:
+    ...
+
+
+def f(a, b):
+    return f"{a}{b}"
--- a/resources/test/fixtures/isort/comments.py
+++ b/resources/test/fixtures/isort/comments.py
@@ -23,3 +23,6 @@ from A import (
    b,  # Comment 10
    c,  # Comment 11
 )
+
+from D import a_long_name_to_force_multiple_lines # Comment 12
+from D import another_long_name_to_force_multiple_lines # Comment 13
--- a/resources/test/fixtures/isort/force_single_line.py
+++ b/resources/test/fixtures/isort/force_single_line.py
@@ -0,0 +1,18 @@
+import sys, math
+from os import path, uname
+from logging.handlers import StreamHandler, FileHandler
+
+# comment 1
+from third_party import lib1, lib2, \
+     lib3, lib7, lib5, lib6
+# comment 2
+from third_party import lib4
+
+from foo import bar  # comment 3
+from foo2 import bar2  # comment 4
+
+# comment 5
+from bar import (
+     a, # comment 6
+     b, # comment 7
+)
--- a/resources/test/fixtures/isort/line_ending_cr.py
+++ b/resources/test/fixtures/isort/line_ending_cr.py
@@ -0,0 +1 @@
+from long_module_name import member_one, member_two, member_three, member_four, member_five
--- a/resources/test/fixtures/isort/line_ending_crlf.py
+++ b/resources/test/fixtures/isort/line_ending_crlf.py
@@ -0,0 +1,2 @@
+from long_module_name import member_one, member_two, member_three, member_four, member_five
+
--- a/resources/test/fixtures/isort/line_ending_lf.py
+++ b/resources/test/fixtures/isort/line_ending_lf.py
@@ -0,0 +1,2 @@
+from long_module_name import member_one, member_two, member_three, member_four, member_five
+
--- a/resources/test/fixtures/isort/magic_trailing_comma.py
+++ b/resources/test/fixtures/isort/magic_trailing_comma.py
@@ -0,0 +1,38 @@
+# This has a magic trailing comma, will be sorted, but not rolled into one line
+from sys import (
+    stderr,
+    argv,
+    stdout,
+    exit,
+)
+
+# No magic comma, this will be rolled into one line.
+from os import (
+    path,
+    environ,
+    execl,
+    execv
+)
+
+from glob import (
+    glob,
+    iglob,
+    escape,  # Ends with a comment, should still treat as magic trailing comma.
+)
+
+# These will be combined, but without a trailing comma.
+from foo import bar
+from foo import baz
+
+# These will be combined, _with_ a trailing comma.
+from module1 import member1
+from module1 import (
+    member2,
+    member3,
+)
+
+# These will be combined, _with_ a trailing comma.
+from module2 import member1, member2
+from module2 import (
+    member3,
+)
--- a/resources/test/fixtures/isort/natural_order.py
+++ b/resources/test/fixtures/isort/natural_order.py
@@ -0,0 +1,16 @@
+import numpy1
+import numpy10
+import numpy2
+from numpy import (
+    cos,
+    int8,
+    sin,
+    int32,
+    int64,
+    tan,
+    uint8,
+    uint16,
+    int16,
+    uint32,
+    uint64,
+)
--- a/resources/test/fixtures/pycodestyle/E721.py
+++ b/resources/test/fixtures/pycodestyle/E721.py
@@ -15,7 +15,7 @@ import types
 if type(res) is not types.ListType:
    pass
 #: E721
-assert type(res) == type(False) or type(res) == type(None)
+assert type(res) == type(False)
 #: E721
 assert type(res) == type([])
 #: E721
@@ -52,3 +52,5 @@ if isinstance(res, types.MethodType):
    pass
 if type(a) != type(b) or type(a) == type(ccc):
    pass
+
+assert type(res) == type(None)
--- a/resources/test/fixtures/pycodestyle/W292_2.py
+++ b/resources/test/fixtures/pycodestyle/W292_2.py
@@ -1,2 +1,2 @@
 def fn() -> None:
-    pass
+    print("Newline present (no W292)")
--- a/resources/test/fixtures/pycodestyle/W292_3.py
+++ b/resources/test/fixtures/pycodestyle/W292_3.py
--- a/resources/test/fixtures/pycodestyle/W292_4.py
+++ b/resources/test/fixtures/pycodestyle/W292_4.py
@@ -0,0 +1 @@
+ 
--- a/resources/test/fixtures/pydocstyle/D417.py
+++ b/resources/test/fixtures/pydocstyle/D417.py
@@ -0,0 +1,84 @@
+def f(x, y, z):
+    """Do f.
+
+    Args:
+        x: the value
+            with a hanging indent
+
+    Returns:
+        the value
+    """
+    return x
+
+
+def f(x, y, z):
+    """Do f.
+
+    Args:
+        x:
+            The whole thing has a hanging indent.
+
+    Returns:
+        the value
+    """
+    return x
+
+
+def f(x, y, z):
+    """Do f.
+
+    Args:
+        x:
+            The whole thing has a hanging indent.
+
+    Returns: the value
+    """
+    return x
+
+
+def f(x, y, z):
+    """Do f.
+
+    Args:
+        x: the value def
+            ghi
+
+    Returns:
+        the value
+    """
+    return x
+
+
+def f(x, y, z):
+    """Do f.
+
+    Args:
+        x: the value
+        z: A final argument
+
+    Returns:
+        the value
+    """
+    return x
+
+
+def f(x, y, z):
+    """Do g.
+
+    Args:
+        x: the value
+        z: A final argument
+
+    Returns: the value
+    """
+    return x
+
+
+def f(x, y, z):
+    """Do h.
+
+    Args:
+        x: the value
+        z: A final argument
+    """
+    return x
--- a/resources/test/fixtures/pyflakes/F401_7.py
+++ b/resources/test/fixtures/pyflakes/F401_7.py
@@ -1,16 +1,66 @@
 """Test: noqa directives."""

-from module import (
-    A,  # noqa: F401
-    B,
+# This should ignore both errors.
+from typing import (  # noqa: F401
+    List,
+    Sequence,
 )

-from module import (
-    A,  # noqa: F401
-    B,  # noqa: F401
+# This should ignore both errors.
+from typing import (  # noqa
+    List,
+    Sequence,
 )

-from module import (
-    A,
-    B,
+# This should ignore both errors.
+from typing import (
+    List,  # noqa: F401
+    Sequence,  # noqa: F401
 )
+
+# This should ignore both errors.
+from typing import (
+    List,  # noqa
+    Sequence,  # noqa
+)
+
+# This should ignore the first error.
+from typing import (
+    Mapping,  # noqa: F401
+    Union,
+)
+
+# This should ignore both errors.
+from typing import (  # noqa
+    List,
+    Sequence,
+)
+
+# This should ignore the error, but the inner noqa should be marked as unused.
+from typing import (  # noqa: F401
+    Optional,  # noqa: F401
+)
+
+# This should ignore the error, but the inner noqa should be marked as unused.
+from typing import (  # noqa
+    Optional,  # noqa: F401
+)
+
+# This should ignore the error, but mark F501 as unused.
+from typing import (  # noqa: F401
+    Dict,  # noqa: F501
+)
+
+# This should ignore the error, but mark F501 as unused.
+from typing import (  # noqa: F501
+    Tuple,  # noqa: F401
+)
+
+# This should ignore both errors.
+from typing import Any, AnyStr  # noqa: F401
+
+# This should ignore both errors.
+from typing import AsyncIterable, AsyncGenerator  # noqa
+
+# This should mark F501 as unused.
+from typing import Awaitable, AwaitableGenerator  # noqa: F501
--- a/resources/test/fixtures/pyflakes/F831.py
+++ b/resources/test/fixtures/pyflakes/F831.py
@@ -1,10 +0,0 @@
-def foo(x: int, y: int, x: int) -> None:
-    pass
-
-
-def bar(x: int, y: int, *, x: int) -> None:
-    pass
-
-
-def baz(x: int, y: int, **x: int) -> None:
-    pass
--- a/resources/test/fixtures/pygrep-hooks/PGH004_0.py
+++ b/resources/test/fixtures/pygrep-hooks/PGH004_0.py
@@ -0,0 +1,11 @@
+x = 1  # noqa
+x = 1  # NOQA:F401,W203
+# noqa
+# NOQA
+# noqa:F401
+# noqa:F401,W203
+
+x = 1
+x = 1  # noqa: F401, W203
+# noqa: F401
+# noqa: F401, W203
--- a/resources/test/fixtures/pyproject.toml
+++ b/resources/test/fixtures/pyproject.toml
@@ -42,6 +42,10 @@ staticmethod-decorators = ["staticmethod"]
 [tool.ruff.flake8-tidy-imports]
 ban-relative-imports = "parents"

+[tool.ruff.flake8-tidy-imports.banned-api]
+"cgi".msg = "The cgi module is deprecated."
+"typing.TypedDict".msg = "Use typing_extensions.TypedDict instead."
+
 [tool.ruff.flake8-errmsg]
 max-string-length = 20

--- a/resources/test/fixtures/pyupgrade/UP018.py
+++ b/resources/test/fixtures/pyupgrade/UP018.py
@@ -0,0 +1,25 @@
+# These remain unchanged
+str(1)
+str(*a)
+str("foo", *a)
+str(**k)
+str("foo", **k)
+str("foo", encoding="UTF-8")
+str("foo"
+    "bar")
+bytes("foo", encoding="UTF-8")
+bytes(*a)
+bytes("foo", *a)
+bytes("foo", **a)
+bytes(b"foo"
+      b"bar")
+
+# These become string or byte literals
+str()
+str("foo")
+str("""
+foo""")
+bytes()
+bytes(b"foo")
+bytes(b"""
+foo""")
--- a/resources/test/fixtures/pyupgrade/UP019.py
+++ b/resources/test/fixtures/pyupgrade/UP019.py
@@ -0,0 +1,20 @@
+import typing
+import typing as Hello
+from typing import Text
+from typing import Text as Goodbye
+
+
+def print_word(word: Text) -> None:
+    print(word)
+
+
+def print_second_word(word: typing.Text) -> None:
+    print(word)
+
+
+def print_third_word(word: Hello.Text) -> None:
+    print(word)
+
+
+def print_fourth_word(word: Goodbye) -> None:
+    print(word)
--- a/resources/test/fixtures/pyupgrade/UP020.py
+++ b/resources/test/fixtures/pyupgrade/UP020.py
@@ -0,0 +1,9 @@
+from io import open
+
+with open("f.txt") as f:
+    print(f.read())
+
+import io
+
+with io.open("f.txt", mode="r", buffering=-1, **kwargs) as f:
+    print(f.read())
--- a/resources/test/fixtures/pyupgrade/UP021.py
+++ b/resources/test/fixtures/pyupgrade/UP021.py
@@ -0,0 +1,12 @@
+import subprocess
+import subprocess as somename
+from subprocess import run
+from subprocess import run as anothername
+
+subprocess.run(["foo"], universal_newlines=True, check=True)
+somename.run(["foo"], universal_newlines=True)
+
+run(["foo"], universal_newlines=True, check=False)
+anothername(["foo"], universal_newlines=True)
+
+subprocess.run(["foo"], check=True)
--- a/resources/test/fixtures/pyupgrade/UP022.py
+++ b/resources/test/fixtures/pyupgrade/UP022.py
@@ -0,0 +1,42 @@
+from subprocess import run
+import subprocess
+
+output = run(["foo"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+output = subprocess.run(["foo"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+output = subprocess.run(stdout=subprocess.PIPE, args=["foo"],  stderr=subprocess.PIPE)
+
+output = subprocess.run(
+    ["foo"], stdout=subprocess.PIPE, check=True, stderr=subprocess.PIPE
+)
+
+output = subprocess.run(
+    ["foo"], stderr=subprocess.PIPE, check=True, stdout=subprocess.PIPE
+)
+
+output = subprocess.run(
+    ["foo"],
+    stdout=subprocess.PIPE,
+    check=True,
+    stderr=subprocess.PIPE,
+    text=True,
+    encoding="utf-8",
+    close_fds=True,
+)
+
+if output:
+    output = subprocess.run(
+        ["foo"],
+        stdout=subprocess.PIPE,
+        check=True,
+        stderr=subprocess.PIPE,
+        text=True,
+        encoding="utf-8",
+    )
+
+
+# Examples that should NOT trigger the rule
+from foo import PIPE
+subprocess.run(["foo"], stdout=PIPE, stderr=PIPE)
+run(["foo"], stdout=None, stderr=PIPE)
--- a/resources/test/fixtures/pyupgrade/UP023.py
+++ b/resources/test/fixtures/pyupgrade/UP023.py
@@ -0,0 +1,31 @@
+# These two imports have something after cElementTree, so they should be fixed.
+from xml.etree.cElementTree import XML, Element, SubElement
+import xml.etree.cElementTree as ET
+
+# Weird spacing should not cause issues.
+from   xml.etree.cElementTree    import  XML
+import    xml.etree.cElementTree       as      ET
+
+# Multi line imports should also work fine.
+from xml.etree.cElementTree import (
+    XML,
+    Element,
+    SubElement,
+)
+if True:
+    import xml.etree.cElementTree as ET
+    from xml.etree import cElementTree as CET
+
+from xml.etree import cElementTree as ET
+
+import contextlib, xml.etree.cElementTree as ET
+
+# This should fix the second, but not the first invocation.
+import xml.etree.cElementTree, xml.etree.cElementTree as ET
+
+# The below items should NOT be changed.
+import xml.etree.cElementTree
+
+from .xml.etree.cElementTree import XML
+
+from xml.etree import cElementTree
--- a/resources/test/fixtures/pyupgrade/UP025.py
+++ b/resources/test/fixtures/pyupgrade/UP025.py
@@ -0,0 +1,27 @@
+# These should change
+x = u"Hello"
+
+u'world'
+
+print(u"Hello")
+
+print(u'world')
+
+import foo
+
+foo(u"Hello", U"world", a=u"Hello", b=u"world")
+
+# These should stay quoted they way they are
+
+x = u'hello'
+x = u"""hello"""
+x = u'''hello'''
+x = u'Hello "World"'
+
+# These should not change
+u = "Hello"
+
+u = u
+
+def hello():
+    return"Hello"
--- a/resources/test/fixtures/ruff/RUF004.py
+++ b/resources/test/fixtures/ruff/RUF004.py
@@ -0,0 +1,15 @@
+def f(*args, **kwargs):
+    pass
+
+
+a = (1, 2)
+b = (3, 4)
+c = (5, 6)
+d = (7, 8)
+
+f(a, b)
+f(a, kw=b)
+f(*a, kw=b)
+f(kw=a, *b)
+f(kw=a, *b, *c)
+f(*a, kw=b, *c, kw1=d)
--- a/resources/test/fixtures/ruff/RUF100_0.py
+++ b/resources/test/fixtures/ruff/RUF100_0.py
@@ -15,8 +15,8 @@ def f() -> None:
    # Invalid
    d = 1  # noqa: F841, E501

-    # Invalid (and unimplemented)
-    d = 1  # noqa: F841, W191
+    # Invalid (and unimplemented or not enabled)
+    d = 1  # noqa: F841, W191, F821

    # Invalid (but external)
    d = 1  # noqa: F841, V101
--- a/resources/test/fixtures/ruff/RUF100_1.py
+++ b/resources/test/fixtures/ruff/RUF100_1.py
@@ -0,0 +1,64 @@
+# This should ignore both errors.
+from typing import (  # noqa: F401
+    List,
+    Sequence,
+)
+
+# This should ignore both errors.
+from typing import (  # noqa
+    List,
+    Sequence,
+)
+
+# This should ignore both errors.
+from typing import (
+    List,  # noqa: F401
+    Sequence,  # noqa: F401
+)
+
+# This should ignore both errors.
+from typing import (
+    List,  # noqa
+    Sequence,  # noqa
+)
+
+# This should ignore the first error.
+from typing import (
+    Mapping,  # noqa: F401
+    Union,
+)
+
+# This should ignore both errors.
+from typing import (  # noqa
+    List,
+    Sequence,
+)
+
+# This should ignore the error, but the inner noqa should be marked as unused.
+from typing import (  # noqa: F401
+    Optional,  # noqa: F401
+)
+
+# This should ignore the error, but the inner noqa should be marked as unused.
+from typing import (  # noqa
+    Optional,  # noqa: F401
+)
+
+# This should ignore the error, but mark F501 as unused.
+from typing import (  # noqa: F401
+    Dict,  # noqa: F501
+)
+
+# This should ignore the error, but mark F501 as unused.
+from typing import (  # noqa: F501
+    Tuple,  # noqa: F401
+)
+
+# This should ignore both errors.
+from typing import Any, AnyStr  # noqa: F401
+
+# This should ignore both errors.
+from typing import AsyncIterable, AsyncGenerator  # noqa
+
+# This should mark F501 as unused.
+from typing import Awaitable, AwaitableGenerator  # noqa: F501
--- a/resources/test/project/examples/docs/pyproject.toml
+++ b/resources/test/project/examples/docs/pyproject.toml
@@ -1,4 +1,3 @@
-[tool.ruff]
 extend = "../../pyproject.toml"
 src = ["."]
 # Enable I001, and re-enable F841, to test extension priority.
--- a/ruff.schema.json
+++ b/ruff.schema.json
--- a/ruff_dev/Cargo.toml
+++ b/ruff_dev/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ruff_dev"
-version = "0.0.192"
+version = "0.0.204"
 edition = "2021"

 [dependencies]
@@ -11,8 +11,11 @@ itertools = { version = "0.10.5" }
 libcst = { git = "https://github.com/charliermarsh/LibCST", rev = "f2f0b7a487a8725d161fe8b3ed73a6758b21e177" }
 once_cell = { version = "1.16.0" }
 ruff = { path = ".." }
-rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "c01f014b1269eedcf4bdb45d5fbc62ae2beecf31" }
-rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "c01f014b1269eedcf4bdb45d5fbc62ae2beecf31" }
-rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "c01f014b1269eedcf4bdb45d5fbc62ae2beecf31" }
+rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "8cb2b8292062adf13bde1b863a9b02c9f0bda3dd" }
+rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "8cb2b8292062adf13bde1b863a9b02c9f0bda3dd" }
+rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "8cb2b8292062adf13bde1b863a9b02c9f0bda3dd" }
+schemars = { version = "0.8.11" }
+serde_json = {version="1.0.91"}
 strum = { version = "0.24.1", features = ["strum_macros"] }
 strum_macros = { version = "0.24.3" }
+textwrap = { version = "0.16.0" }
--- a/ruff_dev/src/generate_all.rs
+++ b/ruff_dev/src/generate_all.rs
@@ -0,0 +1,35 @@
+//! Run all code and documentation generation steps.
+
+use anyhow::Result;
+use clap::Args;
+
+use crate::{
+    generate_check_code_prefix, generate_cli_help, generate_json_schema, generate_options,
+    generate_rules_table,
+};
+
+#[derive(Args)]
+pub struct Cli {
+    /// Write the generated artifacts to stdout (rather than to the filesystem).
+    #[arg(long)]
+    dry_run: bool,
+}
+
+pub fn main(cli: &Cli) -> Result<()> {
+    generate_check_code_prefix::main(&generate_check_code_prefix::Cli {
+        dry_run: cli.dry_run,
+    })?;
+    generate_json_schema::main(&generate_json_schema::Cli {
+        dry_run: cli.dry_run,
+    })?;
+    generate_rules_table::main(&generate_rules_table::Cli {
+        dry_run: cli.dry_run,
+    })?;
+    generate_options::main(&generate_options::Cli {
+        dry_run: cli.dry_run,
+    })?;
+    generate_cli_help::main(&generate_cli_help::Cli {
+        dry_run: cli.dry_run,
+    })?;
+    Ok(())
+}
--- a/ruff_dev/src/generate_check_code_prefix.rs
+++ b/ruff_dev/src/generate_check_code_prefix.rs
@@ -13,13 +13,15 @@ use itertools::Itertools;
 use ruff::checks::{CheckCode, PREFIX_REDIRECTS};
 use strum::IntoEnumIterator;

+const ALL: &str = "ALL";
+
 #[derive(Parser)]
 #[command(author, version, about, long_about = None)]
 pub struct Cli {
    /// Write the generated source code to stdout (rather than to
    /// `src/checks_gen.rs`).
    #[arg(long)]
-    dry_run: bool,
+    pub(crate) dry_run: bool,
 }

 pub fn main(cli: &Cli) -> Result<()> {
@@ -34,9 +36,15 @@ pub fn main(cli: &Cli) -> Result<()> {
        let code_suffix_len = code_str.len() - code_prefix_len;
        for i in 0..=code_suffix_len {
            let prefix = code_str[..code_prefix_len + i].to_string();
-            let entry = prefix_to_codes.entry(prefix).or_default();
-            entry.insert(check_code.clone());
+            prefix_to_codes
+                .entry(prefix)
+                .or_default()
+                .insert(check_code.clone());
        }
+        prefix_to_codes
+            .entry(ALL.to_string())
+            .or_default()
+            .insert(check_code.clone());
    }

    // Add any prefix aliases (e.g., "U" to "UP").
@@ -65,7 +73,8 @@ pub fn main(cli: &Cli) -> Result<()> {
        .derive("Ord")
        .derive("Clone")
        .derive("Serialize")
-        .derive("Deserialize");
+        .derive("Deserialize")
+        .derive("JsonSchema");
    for prefix in prefix_to_codes.keys() {
        gen = gen.push_variant(Variant::new(prefix.to_string()));
    }
@@ -78,6 +87,7 @@ pub fn main(cli: &Cli) -> Result<()> {
        .derive("Eq")
        .derive("PartialOrd")
        .derive("Ord")
+        .push_variant(Variant::new("None"))
        .push_variant(Variant::new("Zero"))
        .push_variant(Variant::new("One"))
        .push_variant(Variant::new("Two"))
@@ -128,18 +138,21 @@ pub fn main(cli: &Cli) -> Result<()> {
        .line("#[allow(clippy::match_same_arms)]")
        .line("match self {");
    for prefix in prefix_to_codes.keys() {
-        let num_numeric = prefix.chars().filter(|char| char.is_numeric()).count();
-        let specificity = match num_numeric {
-            0 => "Zero",
-            1 => "One",
-            2 => "Two",
-            3 => "Three",
-            4 => "Four",
-            _ => panic!("Invalid prefix: {prefix}"),
+        let specificity = if prefix == "ALL" {
+            "None"
+        } else {
+            let num_numeric = prefix.chars().filter(|char| char.is_numeric()).count();
+            match num_numeric {
+                0 => "Zero",
+                1 => "One",
+                2 => "Two",
+                3 => "Three",
+                4 => "Four",
+                _ => panic!("Invalid prefix: {prefix}"),
+            }
        };
        gen = gen.line(format!(
-            "CheckCodePrefix::{prefix} => SuffixLength::{},",
-            specificity
+            "CheckCodePrefix::{prefix} => SuffixLength::{specificity},"
        ));
    }
    gen.line("}");
@@ -152,6 +165,8 @@ pub fn main(cli: &Cli) -> Result<()> {
    output.push('\n');
    output.push_str("use colored::Colorize;");
    output.push('\n');
+    output.push_str("use schemars::JsonSchema;");
+    output.push('\n');
    output.push_str("use serde::{Deserialize, Serialize};");
    output.push('\n');
    output.push_str("use strum_macros::{AsRefStr, EnumString};");
--- a/ruff_dev/src/generate_cli_help.rs
+++ b/ruff_dev/src/generate_cli_help.rs
@@ -0,0 +1,38 @@
+//! Generate CLI help.
+
+use anyhow::Result;
+use clap::{Args, CommandFactory};
+use ruff::cli::Cli as MainCli;
+
+use crate::utils::replace_readme_section;
+
+const HELP_BEGIN_PRAGMA: &str = "<!-- Begin auto-generated cli help. -->";
+const HELP_END_PRAGMA: &str = "<!-- End auto-generated cli help. -->";
+
+#[derive(Args)]
+pub struct Cli {
+    /// Write the generated help to stdout (rather than to `README.md`).
+    #[arg(long)]
+    pub(crate) dry_run: bool,
+}
+
+fn trim_lines(s: &str) -> String {
+    s.lines().map(str::trim_end).collect::<Vec<_>>().join("\n")
+}
+
+pub fn main(cli: &Cli) -> Result<()> {
+    let mut cmd = MainCli::command();
+    let output = trim_lines(cmd.render_help().to_string().trim());
+
+    if cli.dry_run {
+        print!("{output}");
+    } else {
+        replace_readme_section(
+            &format!("```shell\n{output}\n```\n"),
+            HELP_BEGIN_PRAGMA,
+            HELP_END_PRAGMA,
+        )?;
+    }
+
+    Ok(())
+}
--- a/ruff_dev/src/generate_json_schema.rs
+++ b/ruff_dev/src/generate_json_schema.rs
@@ -0,0 +1,30 @@
+use std::fs;
+use std::path::PathBuf;
+
+use anyhow::Result;
+use clap::Args;
+use ruff::settings::options::Options;
+use schemars::schema_for;
+
+#[derive(Args)]
+pub struct Cli {
+    /// Write the generated table to stdout (rather than to `ruff.schema.json`).
+    #[arg(long)]
+    pub(crate) dry_run: bool,
+}
+
+pub fn main(cli: &Cli) -> Result<()> {
+    let schema = schema_for!(Options);
+    let schema_string = serde_json::to_string_pretty(&schema).unwrap();
+
+    if cli.dry_run {
+        println!("{schema_string}");
+    } else {
+        let file = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+            .parent()
+            .expect("Failed to find root directory")
+            .join("ruff.schema.json");
+        fs::write(file, schema_string.as_bytes())?;
+    }
+    Ok(())
+}
--- a/ruff_dev/src/generate_options.rs
+++ b/ruff_dev/src/generate_options.rs
@@ -1,16 +1,13 @@
 //! Generate a Markdown-compatible listing of configuration options.

-use std::fs;
-use std::fs::OpenOptions;
-use std::io::Write;
-use std::path::PathBuf;
-
 use anyhow::Result;
 use clap::Args;
 use itertools::Itertools;
 use ruff::settings::options::Options;
 use ruff::settings::options_base::{ConfigurationOptions, OptionEntry, OptionField};

+use crate::utils::replace_readme_section;
+
 const BEGIN_PRAGMA: &str = "<!-- Begin auto-generated options sections. -->";
 const END_PRAGMA: &str = "<!-- End auto-generated options sections. -->";

@@ -18,7 +15,7 @@ const END_PRAGMA: &str = "<!-- End auto-generated options sections. -->";
 pub struct Cli {
    /// Write the generated table to stdout (rather than to `README.md`).
    #[arg(long)]
-    dry_run: bool,
+    pub(crate) dry_run: bool,
 }

 fn emit_field(output: &mut String, field: &OptionField, group_name: Option<&str>) {
@@ -95,30 +92,7 @@ pub fn main(cli: &Cli) -> Result<()> {
    if cli.dry_run {
        print!("{output}");
    } else {
-        // Read the existing file.
-        let file = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
-            .parent()
-            .expect("Failed to find root directory")
-            .join("README.md");
-        let existing = fs::read_to_string(&file)?;
-
-        // Extract the prefix.
-        let index = existing
-            .find(BEGIN_PRAGMA)
-            .expect("Unable to find begin pragma");
-        let prefix = &existing[..index + BEGIN_PRAGMA.len()];
-
-        // Extract the suffix.
-        let index = existing
-            .find(END_PRAGMA)
-            .expect("Unable to find end pragma");
-        let suffix = &existing[index..];
-
-        // Write the prefix, new contents, and suffix.
-        let mut f = OpenOptions::new().write(true).truncate(true).open(&file)?;
-        write!(f, "{prefix}\n\n")?;
-        write!(f, "{output}")?;
-        write!(f, "{suffix}")?;
+        replace_readme_section(&output, BEGIN_PRAGMA, END_PRAGMA)?;
    }

    Ok(())
--- a/ruff_dev/src/generate_rules_table.rs
+++ b/ruff_dev/src/generate_rules_table.rs
@@ -1,16 +1,13 @@
 //! Generate a Markdown-compatible table of supported lint rules.

-use std::fs;
-use std::fs::OpenOptions;
-use std::io::Write;
-use std::path::PathBuf;
-
 use anyhow::Result;
 use clap::Args;
 use itertools::Itertools;
 use ruff::checks::{CheckCategory, CheckCode};
 use strum::IntoEnumIterator;

+use crate::utils::replace_readme_section;
+
 const TABLE_BEGIN_PRAGMA: &str = "<!-- Begin auto-generated sections. -->";
 const TABLE_END_PRAGMA: &str = "<!-- End auto-generated sections. -->";

@@ -21,7 +18,7 @@ const TOC_END_PRAGMA: &str = "<!-- End auto-generated table of contents. -->";
 pub struct Cli {
    /// Write the generated table to stdout (rather than to `README.md`).
    #[arg(long)]
-    dry_run: bool,
+    pub(crate) dry_run: bool,
 }

 pub fn main(cli: &Cli) -> Result<()> {
@@ -85,32 +82,3 @@ pub fn main(cli: &Cli) -> Result<()> {

    Ok(())
 }
-
-fn replace_readme_section(content: &str, begin_pragma: &str, end_pragma: &str) -> Result<()> {
-    // Read the existing file.
-    let file = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
-        .parent()
-        .expect("Failed to find root directory")
-        .join("README.md");
-    let existing = fs::read_to_string(&file)?;
-
-    // Extract the prefix.
-    let index = existing
-        .find(begin_pragma)
-        .expect("Unable to find begin pragma");
-    let prefix = &existing[..index + begin_pragma.len()];
-
-    // Extract the suffix.
-    let index = existing
-        .find(end_pragma)
-        .expect("Unable to find end pragma");
-    let suffix = &existing[index..];
-
-    // Write the prefix, new contents, and suffix.
-    let mut f = OpenOptions::new().write(true).truncate(true).open(&file)?;
-    writeln!(f, "{prefix}")?;
-    write!(f, "{content}")?;
-    write!(f, "{suffix}")?;
-
-    Ok(())
-}
--- a/ruff_dev/src/lib.rs
+++ b/ruff_dev/src/lib.rs
@@ -11,10 +11,14 @@
    clippy::too_many_lines
 )]

+pub mod generate_all;
 pub mod generate_check_code_prefix;
+pub mod generate_cli_help;
+pub mod generate_json_schema;
 pub mod generate_options;
 pub mod generate_rules_table;
-pub mod generate_source_code;
 pub mod print_ast;
 pub mod print_cst;
 pub mod print_tokens;
+pub mod round_trip;
+mod utils;
--- a/ruff_dev/src/main.rs
+++ b/ruff_dev/src/main.rs
@@ -14,8 +14,8 @@
 use anyhow::Result;
 use clap::{Parser, Subcommand};
 use ruff_dev::{
-    generate_check_code_prefix, generate_options, generate_rules_table, generate_source_code,
-    print_ast, print_cst, print_tokens,
+    generate_all, generate_check_code_prefix, generate_cli_help, generate_json_schema,
+    generate_options, generate_rules_table, print_ast, print_cst, print_tokens, round_trip,
 };

 #[derive(Parser)]
@@ -28,32 +28,41 @@ struct Cli {

 #[derive(Subcommand)]
 enum Commands {
+    /// Run all code and documentation generation steps.
+    GenerateAll(generate_all::Cli),
    /// Generate the `CheckCodePrefix` enum.
    GenerateCheckCodePrefix(generate_check_code_prefix::Cli),
+    /// Generate JSON schema for the TOML configuration file.
+    GenerateJSONSchema(generate_json_schema::Cli),
    /// Generate a Markdown-compatible table of supported lint rules.
    GenerateRulesTable(generate_rules_table::Cli),
    /// Generate a Markdown-compatible listing of configuration options.
    GenerateOptions(generate_options::Cli),
-    /// Run round-trip source code generation on a given Python file.
-    GenerateSourceCode(generate_source_code::Cli),
+    /// Generate CLI help.
+    GenerateCliHelp(generate_cli_help::Cli),
    /// Print the AST for a given Python file.
    PrintAST(print_ast::Cli),
    /// Print the LibCST CST for a given Python file.
    PrintCST(print_cst::Cli),
    /// Print the token stream for a given Python file.
    PrintTokens(print_tokens::Cli),
+    /// Run round-trip source code generation on a given Python file.
+    RoundTrip(round_trip::Cli),
 }

 fn main() -> Result<()> {
    let cli = Cli::parse();
    match &cli.command {
+        Commands::GenerateAll(args) => generate_all::main(args)?,
        Commands::GenerateCheckCodePrefix(args) => generate_check_code_prefix::main(args)?,
+        Commands::GenerateJSONSchema(args) => generate_json_schema::main(args)?,
        Commands::GenerateRulesTable(args) => generate_rules_table::main(args)?,
-        Commands::GenerateSourceCode(args) => generate_source_code::main(args)?,
        Commands::GenerateOptions(args) => generate_options::main(args)?,
+        Commands::GenerateCliHelp(args) => generate_cli_help::main(args)?,
        Commands::PrintAST(args) => print_ast::main(args)?,
        Commands::PrintCST(args) => print_cst::main(args)?,
        Commands::PrintTokens(args) => print_tokens::main(args)?,
+        Commands::RoundTrip(args) => round_trip::main(args)?,
    }
    Ok(())
 }
--- a/ruff_dev/src/generate_source_code.rs
+++ b/ruff_dev/src/generate_source_code.rs
@@ -5,7 +5,9 @@ use std::path::PathBuf;

 use anyhow::Result;
 use clap::Args;
-use ruff::code_gen::SourceGenerator;
+use ruff::source_code_generator::SourceCodeGenerator;
+use ruff::source_code_locator::SourceCodeLocator;
+use ruff::source_code_style::SourceCodeStyleDetector;
 use rustpython_parser::parser;

 #[derive(Args)]
@@ -18,7 +20,13 @@ pub struct Cli {
 pub fn main(cli: &Cli) -> Result<()> {
    let contents = fs::read_to_string(&cli.file)?;
    let python_ast = parser::parse_program(&contents, &cli.file.to_string_lossy())?;
-    let mut generator = SourceGenerator::new();
+    let locator = SourceCodeLocator::new(&contents);
+    let stylist = SourceCodeStyleDetector::from_contents(&contents, &locator);
+    let mut generator = SourceCodeGenerator::new(
+        stylist.indentation(),
+        stylist.quote(),
+        stylist.line_ending(),
+    );
    generator.unparse_suite(&python_ast);
    println!("{}", generator.generate()?);
    Ok(())
--- a/ruff_dev/src/utils.rs
+++ b/ruff_dev/src/utils.rs
@@ -0,0 +1,35 @@
+use std::fs;
+use std::fs::OpenOptions;
+use std::io::Write;
+use std::path::PathBuf;
+
+use anyhow::Result;
+
+pub fn replace_readme_section(content: &str, begin_pragma: &str, end_pragma: &str) -> Result<()> {
+    // Read the existing file.
+    let file = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .parent()
+        .expect("Failed to find root directory")
+        .join("README.md");
+    let existing = fs::read_to_string(&file)?;
+
+    // Extract the prefix.
+    let index = existing
+        .find(begin_pragma)
+        .expect("Unable to find begin pragma");
+    let prefix = &existing[..index + begin_pragma.len()];
+
+    // Extract the suffix.
+    let index = existing
+        .find(end_pragma)
+        .expect("Unable to find end pragma");
+    let suffix = &existing[index..];
+
+    // Write the prefix, new contents, and suffix.
+    let mut f = OpenOptions::new().write(true).truncate(true).open(&file)?;
+    writeln!(f, "{prefix}")?;
+    write!(f, "{content}")?;
+    write!(f, "{suffix}")?;
+
+    Ok(())
+}
--- a/ruff_macros/Cargo.toml
+++ b/ruff_macros/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ruff_macros"
-version = "0.0.192"
+version = "0.0.204"
 edition = "2021"

 [lib]
--- a/ruff_macros/src/lib.rs
+++ b/ruff_macros/src/lib.rs
@@ -13,13 +13,14 @@

 use quote::{quote, quote_spanned};
 use syn::parse::{Parse, ParseStream};
+use syn::spanned::Spanned;
 use syn::token::Comma;
 use syn::{
    parse_macro_input, AngleBracketedGenericArguments, Attribute, Data, DataStruct, DeriveInput,
    Field, Fields, Lit, LitStr, Path, PathArguments, PathSegment, Token, Type, TypePath,
 };

-#[proc_macro_derive(ConfigurationOptions, attributes(option, option_group))]
+#[proc_macro_derive(ConfigurationOptions, attributes(option, doc, option_group))]
 pub fn derive(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
    let input = parse_macro_input!(input as DeriveInput);

@@ -39,11 +40,28 @@ fn derive_impl(input: DeriveInput) -> syn::Result<proc_macro2::TokenStream> {
            let mut output = vec![];

            for field in fields.named.iter() {
-                if let Some(attr) = field.attrs.iter().find(|a| a.path.is_ident("option")) {
-                    output.push(handle_option(field, attr)?);
+                let docs: Vec<&Attribute> = field
+                    .attrs
+                    .iter()
+                    .filter(|attr| attr.path.is_ident("doc"))
+                    .collect();
+
+                if docs.is_empty() {
+                    return Err(syn::Error::new(
+                        field.span(),
+                        "Missing documentation for field",
+                    ));
+                }
+
+                if let Some(attr) = field.attrs.iter().find(|attr| attr.path.is_ident("option")) {
+                    output.push(handle_option(field, attr, docs)?);
                };

-                if field.attrs.iter().any(|a| a.path.is_ident("option_group")) {
+                if field
+                    .attrs
+                    .iter()
+                    .any(|attr| attr.path.is_ident("option_group"))
+                {
                    output.push(handle_option_group(field)?);
                };
            }
@@ -70,8 +88,10 @@ fn derive_impl(input: DeriveInput) -> syn::Result<proc_macro2::TokenStream> {
 /// deriving `ConfigurationOptions`, create code that calls retrieves options
 /// from that group: `Foobar::get_available_options()`
 fn handle_option_group(field: &Field) -> syn::Result<proc_macro2::TokenStream> {
-    // unwrap is safe because we're only going over named fields
-    let ident = field.ident.as_ref().unwrap();
+    let ident = field
+        .ident
+        .as_ref()
+        .expect("Expected to handle named fields");

    match &field.ty {
        Type::Path(TypePath {
@@ -103,17 +123,49 @@ fn handle_option_group(field: &Field) -> syn::Result<proc_macro2::TokenStream> {
    }
 }

+/// Parse a `doc` attribute into it a string literal.
+fn parse_doc(doc: &Attribute) -> syn::Result<String> {
+    let doc = doc
+        .parse_meta()
+        .map_err(|e| syn::Error::new(doc.span(), e))?;
+
+    match doc {
+        syn::Meta::NameValue(syn::MetaNameValue {
+            lit: Lit::Str(lit_str),
+            ..
+        }) => Ok(lit_str.value()),
+        _ => Err(syn::Error::new(doc.span(), "Expected doc attribute.")),
+    }
+}
+
 /// Parse an `#[option(doc="...", default="...", value_type="...",
 /// example="...")]` attribute and return data in the form of an `OptionField`.
-fn handle_option(field: &Field, attr: &Attribute) -> syn::Result<proc_macro2::TokenStream> {
-    // unwrap is safe because we're only going over named fields
-    let ident = field.ident.as_ref().unwrap();
+fn handle_option(
+    field: &Field,
+    attr: &Attribute,
+    docs: Vec<&Attribute>,
+) -> syn::Result<proc_macro2::TokenStream> {
+    // Convert the list of `doc` attributes into a single string.
+    let doc = textwrap::dedent(
+        &docs
+            .into_iter()
+            .map(parse_doc)
+            .collect::<syn::Result<Vec<_>>>()?
+            .join("\n"),
+    )
+    .trim_matches('\n')
+    .to_string();
+
+    let ident = field
+        .ident
+        .as_ref()
+        .expect("Expected to handle named fields");

    let FieldAttributes {
-        doc,
        default,
        value_type,
        example,
+        ..
    } = attr.parse_args::<FieldAttributes>()?;
    let kebab_name = LitStr::new(&ident.to_string().replace('_', "-"), ident.span());

@@ -130,7 +182,6 @@ fn handle_option(field: &Field, attr: &Attribute) -> syn::Result<proc_macro2::To

 #[derive(Debug)]
 struct FieldAttributes {
-    doc: String,
    default: String,
    value_type: String,
    example: String,
@@ -138,8 +189,6 @@ struct FieldAttributes {

 impl Parse for FieldAttributes {
    fn parse(input: ParseStream) -> syn::Result<Self> {
-        let doc = _parse_key_value(input, "doc")?;
-        input.parse::<Comma>()?;
        let default = _parse_key_value(input, "default")?;
        input.parse::<Comma>()?;
        let value_type = _parse_key_value(input, "value_type")?;
@@ -150,7 +199,6 @@ impl Parse for FieldAttributes {
        }

        Ok(FieldAttributes {
-            doc: textwrap::dedent(&doc).trim_matches('\n').to_string(),
            default,
            value_type,
            example: textwrap::dedent(&example).trim_matches('\n').to_string(),
--- a/src/ast/helpers.rs
+++ b/src/ast/helpers.rs
@@ -1,3 +1,4 @@
+use itertools::Itertools;
 use log::error;
 use once_cell::sync::Lazy;
 use regex::Regex;
@@ -381,10 +382,8 @@ pub fn identifier_range(stmt: &Stmt, locator: &SourceCodeLocator) -> Range {
            | StmtKind::AsyncFunctionDef { .. }
    ) {
        let contents = locator.slice_source_code_range(&Range::from_located(stmt));
-        for (start, tok, end) in lexer::make_tokenizer(&contents).flatten() {
+        for (start, tok, end) in lexer::make_tokenizer_located(&contents, stmt.location).flatten() {
            if matches!(tok, Tok::Name { .. }) {
-                let start = to_absolute(start, stmt.location);
-                let end = to_absolute(end, stmt.location);
                return Range {
                    location: start,
                    end_location: end,
@@ -396,6 +395,95 @@ pub fn identifier_range(stmt: &Stmt, locator: &SourceCodeLocator) -> Range {
    Range::from_located(stmt)
 }

+/// Return the `Range` of `name` in `Excepthandler`.
+pub fn excepthandler_name_range(
+    handler: &Excepthandler,
+    locator: &SourceCodeLocator,
+) -> Option<Range> {
+    let ExcepthandlerKind::ExceptHandler {
+        name, type_, body, ..
+    } = &handler.node;
+    match (name, type_) {
+        (Some(_), Some(type_)) => {
+            let type_end_location = type_.end_location.unwrap();
+            let contents = locator.slice_source_code_range(&Range {
+                location: type_end_location,
+                end_location: body[0].location,
+            });
+            let range = lexer::make_tokenizer_located(&contents, type_end_location)
+                .flatten()
+                .tuple_windows()
+                .find(|(tok, next_tok)| {
+                    matches!(tok.1, Tok::As) && matches!(next_tok.1, Tok::Name { .. })
+                })
+                .map(|((..), (location, _, end_location))| Range {
+                    location,
+                    end_location,
+                });
+            range
+        }
+        _ => None,
+    }
+}
+
+/// Return the `Range` of `except` in `Excepthandler`.
+pub fn except_range(handler: &Excepthandler, locator: &SourceCodeLocator) -> Range {
+    let ExcepthandlerKind::ExceptHandler { body, type_, .. } = &handler.node;
+    let end = if let Some(type_) = type_ {
+        type_.location
+    } else {
+        body.first()
+            .expect("Expected body to be non-empty")
+            .location
+    };
+    let contents = locator.slice_source_code_range(&Range {
+        location: handler.location,
+        end_location: end,
+    });
+    let range = lexer::make_tokenizer_located(&contents, handler.location)
+        .flatten()
+        .find(|(_, kind, _)| matches!(kind, Tok::Except { .. }))
+        .map(|(location, _, end_location)| Range {
+            location,
+            end_location,
+        })
+        .expect("Failed to find `except` range");
+    range
+}
+
+/// Return the `Range` of `else` in `For`, `AsyncFor`, and `While` statements.
+pub fn else_range(stmt: &Stmt, locator: &SourceCodeLocator) -> Option<Range> {
+    match &stmt.node {
+        StmtKind::For { body, orelse, .. }
+        | StmtKind::AsyncFor { body, orelse, .. }
+        | StmtKind::While { body, orelse, .. }
+            if !orelse.is_empty() =>
+        {
+            let body_end = body
+                .last()
+                .expect("Expected body to be non-empty")
+                .end_location
+                .unwrap();
+            let contents = locator.slice_source_code_range(&Range {
+                location: body_end,
+                end_location: orelse
+                    .first()
+                    .expect("Expected orelse to be non-empty")
+                    .location,
+            });
+            let range = lexer::make_tokenizer_located(&contents, body_end)
+                .flatten()
+                .find(|(_, kind, _)| matches!(kind, Tok::Else))
+                .map(|(location, _, end_location)| Range {
+                    location,
+                    end_location,
+                });
+            range
+        }
+        _ => None,
+    }
+}
+
 /// Return `true` if a `Stmt` appears to be part of a multi-statement line, with
 /// other statements preceding it.
 pub fn preceded_by_continuation(stmt: &Stmt, locator: &SourceCodeLocator) -> bool {
@@ -436,7 +524,9 @@ mod tests {
    use rustpython_ast::Location;
    use rustpython_parser::parser;

-    use crate::ast::helpers::{identifier_range, match_module_member, match_trailing_content};
+    use crate::ast::helpers::{
+        else_range, identifier_range, match_module_member, match_trailing_content,
+    };
    use crate::ast::types::Range;
    use crate::source_code_locator::SourceCodeLocator;

@@ -708,4 +798,24 @@ class Class():

        Ok(())
    }
+
+    #[test]
+    fn test_else_range() -> Result<()> {
+        let contents = r#"
+for x in y:
+    pass
+else:
+    pass
+"#
+        .trim();
+        let program = parser::parse_program(contents, "<filename>")?;
+        let stmt = program.first().unwrap();
+        let locator = SourceCodeLocator::new(contents);
+        let range = else_range(stmt, &locator).unwrap();
+        assert_eq!(range.location.row(), 3);
+        assert_eq!(range.location.column(), 0);
+        assert_eq!(range.end_location.row(), 3);
+        assert_eq!(range.end_location.column(), 4);
+        Ok(())
+    }
 }
--- a/src/autofix/fixer.rs
+++ b/src/autofix/fixer.rs
@@ -14,6 +14,7 @@ use crate::source_code_locator::SourceCodeLocator;
 pub enum Mode {
    Generate,
    Apply,
+    Diff,
    None,
 }

--- a/src/cache.rs
+++ b/src/cache.rs
@@ -3,7 +3,7 @@ use std::fs;
 use std::fs::{create_dir_all, File, Metadata};
 use std::hash::{Hash, Hasher};
 use std::io::Write;
-use std::path::Path;
+use std::path::{Path, PathBuf};

 use anyhow::Result;
 use filetime::FileTime;
@@ -12,12 +12,12 @@ use once_cell::sync::Lazy;
 use path_absolutize::Absolutize;
 use serde::{Deserialize, Serialize};

-use crate::autofix::fixer;
 use crate::message::Message;
 use crate::settings::{flags, Settings};

-static CACHE_DIR: Lazy<Option<String>> = Lazy::new(|| std::env::var("RUFF_CACHE_DIR").ok());
 const CARGO_PKG_VERSION: &str = env!("CARGO_PKG_VERSION");
+static CACHE_DIR: Lazy<Option<String>> = Lazy::new(|| std::env::var("RUFF_CACHE_DIR").ok());
+pub const DEFAULT_CACHE_DIR_NAME: &str = ".ruff_cache";

 #[derive(Serialize, Deserialize)]
 struct CacheMetadata {
@@ -36,15 +36,19 @@ struct CheckResult {
    messages: Vec<Message>,
 }

-fn cache_dir() -> &'static Path {
-    Path::new(CACHE_DIR.as_ref().map_or(".ruff_cache", String::as_str))
+/// Return the cache directory for a given project root. Defers to the
+/// `RUFF_CACHE_DIR` environment variable, if set.
+pub fn cache_dir(project_root: &Path) -> PathBuf {
+    CACHE_DIR
+        .as_ref()
+        .map_or_else(|| project_root.join(DEFAULT_CACHE_DIR_NAME), PathBuf::from)
 }

 fn content_dir() -> &'static Path {
    Path::new("content")
 }

-fn cache_key<P: AsRef<Path>>(path: P, settings: &Settings, autofix: fixer::Mode) -> u64 {
+fn cache_key<P: AsRef<Path>>(path: P, settings: &Settings, autofix: flags::Autofix) -> u64 {
    let mut hasher = DefaultHasher::new();
    CARGO_PKG_VERSION.hash(&mut hasher);
    path.as_ref().absolutize().unwrap().hash(&mut hasher);
@@ -53,10 +57,8 @@ fn cache_key<P: AsRef<Path>>(path: P, settings: &Settings, autofix: fixer::Mode)
    hasher.finish()
 }

-/// Initialize the cache directory.
-pub fn init() -> Result<()> {
-    let path = cache_dir();
-
+/// Initialize the cache at the specified `Path`.
+pub fn init(path: &Path) -> Result<()> {
    // Create the cache directories.
    create_dir_all(path.join(content_dir()))?;

@@ -75,15 +77,15 @@ pub fn init() -> Result<()> {
    Ok(())
 }

-fn write_sync(key: u64, value: &[u8]) -> Result<(), std::io::Error> {
+fn write_sync(cache_dir: &Path, key: u64, value: &[u8]) -> Result<(), std::io::Error> {
    fs::write(
-        cache_dir().join(content_dir()).join(format!("{key:x}")),
+        cache_dir.join(content_dir()).join(format!("{key:x}")),
        value,
    )
 }

-fn read_sync(key: u64) -> Result<Vec<u8>, std::io::Error> {
-    fs::read(cache_dir().join(content_dir()).join(format!("{key:x}")))
+fn read_sync(cache_dir: &Path, key: u64) -> Result<Vec<u8>, std::io::Error> {
+    fs::read(cache_dir.join(content_dir()).join(format!("{key:x}")))
 }

 /// Get a value from the cache.
@@ -91,14 +93,9 @@ pub fn get<P: AsRef<Path>>(
    path: P,
    metadata: &Metadata,
    settings: &Settings,
-    autofix: fixer::Mode,
-    cache: flags::Cache,
+    autofix: flags::Autofix,
 ) -> Option<Vec<Message>> {
-    if matches!(cache, flags::Cache::Disabled) {
-        return None;
-    };
-
-    let encoded = read_sync(cache_key(path, settings, autofix)).ok()?;
+    let encoded = read_sync(&settings.cache_dir, cache_key(path, settings, autofix)).ok()?;
    let (mtime, messages) = match bincode::deserialize::<CheckResult>(&encoded[..]) {
        Ok(CheckResult {
            metadata: CacheMetadata { mtime },
@@ -120,14 +117,9 @@ pub fn set<P: AsRef<Path>>(
    path: P,
    metadata: &Metadata,
    settings: &Settings,
-    autofix: fixer::Mode,
+    autofix: flags::Autofix,
    messages: &[Message],
-    cache: flags::Cache,
 ) {
-    if matches!(cache, flags::Cache::Disabled) {
-        return;
-    };
-
    let check_result = CheckResultRef {
        metadata: &CacheMetadata {
            mtime: FileTime::from_last_modification_time(metadata).unix_seconds(),
@@ -135,6 +127,7 @@ pub fn set<P: AsRef<Path>>(
        messages,
    };
    if let Err(e) = write_sync(
+        &settings.cache_dir,
        cache_key(path, settings, autofix),
        &bincode::serialize(&check_result).unwrap(),
    ) {
--- a/src/checkers/ast.rs
+++ b/src/checkers/ast.rs
@@ -33,14 +33,16 @@ use crate::python::typing::SubscriptKind;
 use crate::settings::types::PythonVersion;
 use crate::settings::{flags, Settings};
 use crate::source_code_locator::SourceCodeLocator;
-use crate::vendored::cformat::{CFormatError, CFormatErrorType};
+use crate::source_code_style::SourceCodeStyleDetector;
+use crate::vendor::cformat::{CFormatError, CFormatErrorType};
 use crate::visibility::{module_visibility, transition_scope, Modifier, Visibility, VisibleScope};
 use crate::{
    docstrings, flake8_2020, flake8_annotations, flake8_bandit, flake8_blind_except,
    flake8_boolean_trap, flake8_bugbear, flake8_builtins, flake8_comprehensions, flake8_datetimez,
-    flake8_debugger, flake8_errmsg, flake8_import_conventions, flake8_print, flake8_return,
-    flake8_simplify, flake8_tidy_imports, flake8_unused_arguments, mccabe, noqa, pandas_vet,
-    pep8_naming, pycodestyle, pydocstyle, pyflakes, pygrep_hooks, pylint, pyupgrade, visibility,
+    flake8_debugger, flake8_errmsg, flake8_implicit_str_concat, flake8_import_conventions,
+    flake8_print, flake8_return, flake8_simplify, flake8_tidy_imports, flake8_unused_arguments,
+    mccabe, noqa, pandas_vet, pep8_naming, pycodestyle, pydocstyle, pyflakes, pygrep_hooks, pylint,
+    pyupgrade, ruff, visibility,
 };

 const GLOBAL_SCOPE_INDEX: usize = 0;
@@ -56,6 +58,7 @@ pub struct Checker<'a> {
    pub(crate) settings: &'a Settings,
    pub(crate) noqa_line_for: &'a IntMap<usize, usize>,
    pub(crate) locator: &'a SourceCodeLocator<'a>,
+    pub(crate) style: &'a SourceCodeStyleDetector<'a>,
    // Computed checks.
    checks: Vec<Check>,
    // Function and class definition tracking (e.g., for docstring enforcement).
@@ -84,7 +87,6 @@ pub struct Checker<'a> {
    deferred_assignments: Vec<DeferralContext<'a>>,
    // Internal, derivative state.
    visible_scope: VisibleScope,
-    in_f_string: Option<Range>,
    in_annotation: bool,
    in_type_definition: bool,
    in_deferred_string_type_definition: bool,
@@ -107,6 +109,7 @@ impl<'a> Checker<'a> {
        noqa: flags::Noqa,
        path: &'a Path,
        locator: &'a SourceCodeLocator,
+        style: &'a SourceCodeStyleDetector,
    ) -> Checker<'a> {
        Checker {
            settings,
@@ -115,6 +118,7 @@ impl<'a> Checker<'a> {
            noqa,
            path,
            locator,
+            style,
            checks: vec![],
            definitions: vec![],
            deletions: FxHashSet::default(),
@@ -139,7 +143,6 @@ impl<'a> Checker<'a> {
                modifier: Modifier::Module,
                visibility: module_visibility(path),
            },
-            in_f_string: None,
            in_annotation: false,
            in_type_definition: false,
            in_deferred_string_type_definition: false,
@@ -156,14 +159,7 @@ impl<'a> Checker<'a> {
    }

    /// Add a `Check` to the `Checker`.
-    pub(crate) fn add_check(&mut self, mut check: Check) {
-        // If we're in an f-string, override the location. RustPython doesn't produce
-        // reliable locations for expressions within f-strings, so we use the
-        // span of the f-string itself as a best-effort default.
-        if let Some(range) = self.in_f_string {
-            check.location = range.location;
-            check.end_location = range.end_location;
-        }
+    pub(crate) fn add_check(&mut self, check: Check) {
        self.checks.push(check);
    }

@@ -179,16 +175,7 @@ impl<'a> Checker<'a> {
    pub fn patch(&self, code: &CheckCode) -> bool {
        // TODO(charlie): We can't fix errors in f-strings until RustPython adds
        // location data.
-        matches!(self.autofix, flags::Autofix::Enabled)
-            && self.in_f_string.is_none()
-            && self.settings.fixable.contains(code)
-    }
-
-    /// Return the amended `Range` from a `Located`.
-    pub fn range_for<T>(&self, located: &Located<T>) -> Range {
-        // If we're in an f-string, override the location.
-        self.in_f_string
-            .unwrap_or_else(|| Range::from_located(located))
+        matches!(self.autofix, flags::Autofix::Enabled) && self.settings.fixable.contains(code)
    }

    /// Return `true` if the `Expr` is a reference to `typing.${target}`.
@@ -392,10 +379,9 @@ where
                ..
            } => {
                if self.settings.enabled.contains(&CheckCode::E743) {
-                    if let Some(check) = pycodestyle::checks::ambiguous_function_name(
-                        name,
-                        Range::from_located(stmt),
-                    ) {
+                    if let Some(check) = pycodestyle::checks::ambiguous_function_name(name, || {
+                        helpers::identifier_range(stmt, self.locator)
+                    }) {
                        self.add_check(check);
                    }
                }
@@ -546,7 +532,7 @@ where
                    Binding {
                        kind: BindingKind::FunctionDefinition,
                        used: None,
-                        range: Range::from_located(stmt),
+                        range: helpers::identifier_range(stmt, self.locator),
                        source: Some(self.current_stmt().clone()),
                    },
                );
@@ -580,9 +566,9 @@ where
                }

                if self.settings.enabled.contains(&CheckCode::E742) {
-                    if let Some(check) =
-                        pycodestyle::checks::ambiguous_class_name(name, Range::from_located(stmt))
-                    {
+                    if let Some(check) = pycodestyle::checks::ambiguous_class_name(name, || {
+                        helpers::identifier_range(stmt, self.locator)
+                    }) {
                        self.add_check(check);
                    }
                }
@@ -596,9 +582,12 @@ where
                }

                if self.settings.enabled.contains(&CheckCode::N818) {
-                    if let Some(check) =
-                        pep8_naming::checks::error_suffix_on_exception_name(stmt, bases, name)
-                    {
+                    if let Some(check) = pep8_naming::checks::error_suffix_on_exception_name(
+                        stmt,
+                        bases,
+                        name,
+                        self.locator,
+                    ) {
                        self.add_check(check);
                    }
                }
@@ -645,6 +634,9 @@ where
                        ));
                    }
                }
+                if self.settings.enabled.contains(&CheckCode::UP023) {
+                    pyupgrade::plugins::replace_c_element_tree(self, stmt);
+                }

                for alias in names {
                    if alias.node.name.contains('.') && alias.node.asname.is_none() {
@@ -715,6 +707,17 @@ where
                        }
                    }

+                    // flake8_tidy_imports
+                    if self.settings.enabled.contains(&CheckCode::TID251) {
+                        if let Some(check) = flake8_tidy_imports::checks::name_or_parent_is_banned(
+                            alias,
+                            &alias.node.name,
+                            &self.settings.flake8_tidy_imports.banned_api,
+                        ) {
+                            self.add_check(check);
+                        }
+                    }
+
                    // pylint
                    if self.settings.enabled.contains(&CheckCode::PLC0414) {
                        pylint::plugins::useless_import_alias(self, alias);
@@ -814,6 +817,9 @@ where
            } => {
                // Track `import from` statements, to ensure that we can correctly attribute
                // references like `from typing import Union`.
+                if self.settings.enabled.contains(&CheckCode::UP023) {
+                    pyupgrade::plugins::replace_c_element_tree(self, stmt);
+                }
                if level.map(|level| level == 0).unwrap_or(true) {
                    if let Some(module) = module {
                        self.from_imports
@@ -843,6 +849,27 @@ where
                    }
                }

+                if self.settings.enabled.contains(&CheckCode::TID251) {
+                    if let Some(module) = module {
+                        for name in names {
+                            if let Some(check) = flake8_tidy_imports::checks::name_is_banned(
+                                module,
+                                name,
+                                &self.settings.flake8_tidy_imports.banned_api,
+                            ) {
+                                self.add_check(check);
+                            }
+                        }
+                        if let Some(check) = flake8_tidy_imports::checks::name_or_parent_is_banned(
+                            stmt,
+                            module,
+                            &self.settings.flake8_tidy_imports.banned_api,
+                        ) {
+                            self.add_check(check);
+                        }
+                    }
+                }
+
                for alias in names {
                    if let Some("__future__") = module.as_deref() {
                        let name = alias.node.asname.as_ref().unwrap_or(&alias.node.name);
@@ -1067,17 +1094,11 @@ where
                    }
                }
                if self.settings.enabled.contains(&CheckCode::EM101)
-                    | self.settings.enabled.contains(&CheckCode::EM102)
-                    | self.settings.enabled.contains(&CheckCode::EM103)
+                    || self.settings.enabled.contains(&CheckCode::EM102)
+                    || self.settings.enabled.contains(&CheckCode::EM103)
                {
                    if let Some(exc) = exc {
-                        self.add_checks(
-                            flake8_errmsg::checks::check_string_in_exception(
-                                exc,
-                                self.settings.flake8_errmsg.max_string_length,
-                            )
-                            .into_iter(),
-                        );
+                        flake8_errmsg::plugins::string_in_exception(self, exc);
                    }
                }
            }
@@ -1150,14 +1171,16 @@ where
            }
            StmtKind::Try { handlers, .. } => {
                if self.settings.enabled.contains(&CheckCode::F707) {
-                    if let Some(check) = pyflakes::checks::default_except_not_last(handlers) {
+                    if let Some(check) =
+                        pyflakes::checks::default_except_not_last(handlers, self.locator)
+                    {
                        self.add_check(check);
                    }
                }
                if self.settings.enabled.contains(&CheckCode::B014)
                    || self.settings.enabled.contains(&CheckCode::B025)
                {
-                    flake8_bugbear::plugins::duplicate_exceptions(self, stmt, handlers);
+                    flake8_bugbear::plugins::duplicate_exceptions(self, handlers);
                }
                if self.settings.enabled.contains(&CheckCode::B013) {
                    flake8_bugbear::plugins::redundant_tuple_in_exception_handler(self, handlers);
@@ -1394,7 +1417,7 @@ where
                    Binding {
                        kind: BindingKind::ClassDefinition,
                        used: None,
-                        range: Range::from_located(stmt),
+                        range: helpers::identifier_range(stmt, self.locator),
                        source: Some(self.current_stmt().clone()),
                    },
                );
@@ -1443,7 +1466,6 @@ where

        self.push_expr(expr);

-        let prev_in_f_string = self.in_f_string;
        let prev_in_literal = self.in_literal;
        let prev_in_type_definition = self.in_type_definition;

@@ -1493,6 +1515,10 @@ where
            ExprKind::Name { id, ctx } => {
                match ctx {
                    ExprContext::Load => {
+                        if self.settings.enabled.contains(&CheckCode::UP019) {
+                            pyupgrade::plugins::typing_text_str_alias(self, expr);
+                        }
+
                        // Ex) List[...]
                        if !self.in_deferred_string_type_definition
                            && self.settings.enabled.contains(&CheckCode::UP006)
@@ -1558,7 +1584,9 @@ where
                {
                    pyupgrade::plugins::datetime_utc_alias(self, expr);
                }
-
+                if self.settings.enabled.contains(&CheckCode::UP019) {
+                    pyupgrade::plugins::typing_text_str_alias(self, expr);
+                }
                if self.settings.enabled.contains(&CheckCode::YTT202) {
                    flake8_2020::plugins::name_or_attribute(self, expr);
                }
@@ -1575,6 +1603,15 @@ where
                        };
                    }
                }
+
+                if self.settings.enabled.contains(&CheckCode::TID251) {
+                    flake8_tidy_imports::checks::banned_attribute_access(
+                        self,
+                        &dealias_call_path(collect_call_paths(expr), &self.import_aliases),
+                        expr,
+                        &self.settings.flake8_tidy_imports.banned_api,
+                    );
+                }
            }
            ExprKind::Call {
                func,
@@ -1641,26 +1678,42 @@ where
                }

                // pyupgrade
+                if self.settings.enabled.contains(&CheckCode::UP003) {
+                    pyupgrade::plugins::type_of_primitive(self, expr, func, args);
+                }
                if self.settings.enabled.contains(&CheckCode::UP005) {
                    pyupgrade::plugins::deprecated_unittest_alias(self, func);
                }
+                if self.settings.enabled.contains(&CheckCode::UP008) {
+                    pyupgrade::plugins::super_call_with_parameters(self, expr, func, args);
+                }
                if self.settings.enabled.contains(&CheckCode::UP012) {
                    pyupgrade::plugins::unnecessary_encode_utf8(self, expr, func, args, keywords);
                }
+                if self.settings.enabled.contains(&CheckCode::UP015) {
+                    pyupgrade::plugins::redundant_open_modes(self, expr);
+                }
                if self.settings.enabled.contains(&CheckCode::UP016) {
                    pyupgrade::plugins::remove_six_compat(self, expr);
                }
-
-                // flake8-super
-                if self.settings.enabled.contains(&CheckCode::UP008) {
-                    pyupgrade::plugins::super_call_with_parameters(self, expr, func, args);
+                if self.settings.enabled.contains(&CheckCode::UP018) {
+                    pyupgrade::plugins::native_literals(self, expr, func, args, keywords);
+                }
+                if self.settings.enabled.contains(&CheckCode::UP020) {
+                    pyupgrade::plugins::open_alias(self, expr, func);
+                }
+                if self.settings.enabled.contains(&CheckCode::UP021) {
+                    pyupgrade::plugins::replace_universal_newlines(self, expr, keywords);
+                }
+                if self.settings.enabled.contains(&CheckCode::UP022) {
+                    pyupgrade::plugins::replace_stdout_stderr(self, expr, keywords);
                }

                // flake8-print
                if self.settings.enabled.contains(&CheckCode::T201)
                    || self.settings.enabled.contains(&CheckCode::T203)
                {
-                    flake8_print::plugins::print_call(self, expr, func, keywords);
+                    flake8_print::plugins::print_call(self, func, keywords);
                }

                // flake8-bugbear
@@ -1718,7 +1771,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C401) {
                    if let Some(check) = flake8_comprehensions::checks::unnecessary_generator_set(
                        expr,
@@ -1732,7 +1784,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C402) {
                    if let Some(check) = flake8_comprehensions::checks::unnecessary_generator_dict(
                        expr,
@@ -1746,7 +1797,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C403) {
                    if let Some(check) =
                        flake8_comprehensions::checks::unnecessary_list_comprehension_set(
@@ -1762,7 +1812,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C404) {
                    if let Some(check) =
                        flake8_comprehensions::checks::unnecessary_list_comprehension_dict(
@@ -1778,7 +1827,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C405) {
                    if let Some(check) = flake8_comprehensions::checks::unnecessary_literal_set(
                        expr,
@@ -1792,7 +1840,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C406) {
                    if let Some(check) = flake8_comprehensions::checks::unnecessary_literal_dict(
                        expr,
@@ -1806,7 +1853,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C408) {
                    if let Some(check) = flake8_comprehensions::checks::unnecessary_collection_call(
                        expr,
@@ -1820,7 +1866,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C409) {
                    if let Some(check) =
                        flake8_comprehensions::checks::unnecessary_literal_within_tuple_call(
@@ -1835,7 +1880,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C410) {
                    if let Some(check) =
                        flake8_comprehensions::checks::unnecessary_literal_within_list_call(
@@ -1850,7 +1894,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C411) {
                    if let Some(check) = flake8_comprehensions::checks::unnecessary_list_call(
                        expr,
@@ -1863,7 +1906,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C413) {
                    if let Some(check) =
                        flake8_comprehensions::checks::unnecessary_call_around_sorted(
@@ -1878,7 +1920,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C414) {
                    if let Some(check) =
                        flake8_comprehensions::checks::unnecessary_double_cast_or_process(
@@ -1890,7 +1931,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C415) {
                    if let Some(check) =
                        flake8_comprehensions::checks::unnecessary_subscript_reversal(
@@ -1902,7 +1942,6 @@ where
                        self.add_check(check);
                    };
                }
-
                if self.settings.enabled.contains(&CheckCode::C417) {
                    if let Some(check) = flake8_comprehensions::checks::unnecessary_map(
                        func,
@@ -1913,15 +1952,6 @@ where
                    };
                }

-                // pyupgrade
-                if self.settings.enabled.contains(&CheckCode::UP003) {
-                    pyupgrade::plugins::type_of_primitive(self, expr, func, args);
-                }
-
-                if self.settings.enabled.contains(&CheckCode::UP015) {
-                    pyupgrade::plugins::redundant_open_modes(self, expr);
-                }
-
                // flake8-boolean-trap
                if self.settings.enabled.contains(&CheckCode::FBT003) {
                    flake8_boolean_trap::plugins::check_boolean_positional_value_in_function_call(
@@ -1952,7 +1982,6 @@ where
                if self.settings.enabled.contains(&CheckCode::PD002) {
                    self.add_checks(pandas_vet::checks::inplace_argument(keywords).into_iter());
                }
-
                for (code, name) in vec![
                    (CheckCode::PD003, "isnull"),
                    (CheckCode::PD004, "notnull"),
@@ -1969,7 +1998,6 @@ where
                        }
                    }
                }
-
                if self.settings.enabled.contains(&CheckCode::PD015) {
                    if let Some(check) = pandas_vet::checks::use_of_pd_merge(func) {
                        self.add_check(check);
@@ -2063,6 +2091,14 @@ where
                if self.settings.enabled.contains(&CheckCode::PLR1722) {
                    pylint::plugins::use_sys_exit(self, func);
                }
+
+                // ruff
+                if self.settings.enabled.contains(&CheckCode::RUF004) {
+                    self.add_checks(
+                        ruff::checks::keyword_argument_before_star_argument(args, keywords)
+                            .into_iter(),
+                    );
+                }
            }
            ExprKind::Dict { keys, .. } => {
                let check_repeated_literals = self.settings.enabled.contains(&CheckCode::F601);
@@ -2116,10 +2152,9 @@ where
            }
            ExprKind::JoinedStr { values } => {
                if self.settings.enabled.contains(&CheckCode::F541) {
-                    if self.in_f_string.is_none()
-                        && !values
-                            .iter()
-                            .any(|value| matches!(value.node, ExprKind::FormattedValue { .. }))
+                    if !values
+                        .iter()
+                        .any(|value| matches!(value.node, ExprKind::FormattedValue { .. }))
                    {
                        self.add_check(Check::new(
                            CheckKind::FStringMissingPlaceholders,
@@ -2127,7 +2162,6 @@ where
                        ));
                    }
                }
-                self.in_f_string = Some(Range::from_located(expr));
            }
            ExprKind::BinOp {
                left,
@@ -2220,6 +2254,15 @@ where
                    }
                }
            }
+            ExprKind::BinOp {
+                op: Operator::Add, ..
+            } => {
+                if self.settings.enabled.contains(&CheckCode::ISC003) {
+                    if let Some(check) = flake8_implicit_str_concat::checks::explicit(expr) {
+                        self.add_check(check);
+                    }
+                }
+            }
            ExprKind::UnaryOp { op, operand } => {
                let check_not_in = self.settings.enabled.contains(&CheckCode::E713);
                let check_not_is = self.settings.enabled.contains(&CheckCode::E714);
@@ -2319,7 +2362,7 @@ where
            }
            ExprKind::Constant {
                value: Constant::Str(value),
-                ..
+                kind,
            } => {
                if self.in_type_definition && !self.in_literal {
                    self.deferred_string_type_definitions.push((
@@ -2337,6 +2380,9 @@ where
                        self.add_check(check);
                    }
                }
+                if self.settings.enabled.contains(&CheckCode::UP025) {
+                    pyupgrade::plugins::rewrite_unicode_literal(self, expr, kind);
+                }
            }
            ExprKind::Lambda { args, body, .. } => {
                // Visit the arguments, but avoid the body, which will be deferred.
@@ -2625,7 +2671,6 @@ where

        self.in_type_definition = prev_in_type_definition;
        self.in_literal = prev_in_literal;
-        self.in_f_string = prev_in_f_string;

        self.pop_expr();
    }
@@ -2639,7 +2684,8 @@ where
                    if let Some(check) = pycodestyle::checks::do_not_use_bare_except(
                        type_.as_deref(),
                        body,
-                        Range::from_located(excepthandler),
+                        excepthandler,
+                        self.locator,
                    ) {
                        self.add_check(check);
                    }
@@ -2667,12 +2713,15 @@ where

                        self.check_builtin_shadowing(name, excepthandler, false);

+                        let name_range =
+                            helpers::excepthandler_name_range(excepthandler, self.locator).unwrap();
+
                        if self.current_scope().values.contains_key(&name.as_str()) {
                            self.handle_node_store(
                                name,
                                &Expr::new(
-                                    excepthandler.location,
-                                    excepthandler.end_location.unwrap(),
+                                    name_range.location,
+                                    name_range.end_location,
                                    ExprKind::Name {
                                        id: name.to_string(),
                                        ctx: ExprContext::Store,
@@ -2685,8 +2734,8 @@ where
                        self.handle_node_store(
                            name,
                            &Expr::new(
-                                excepthandler.location,
-                                excepthandler.end_location.unwrap(),
+                                name_range.location,
+                                name_range.end_location,
                                ExprKind::Name {
                                    id: name.to_string(),
                                    ctx: ExprContext::Store,
@@ -2705,7 +2754,7 @@ where
                                if self.settings.enabled.contains(&CheckCode::F841) {
                                    self.add_check(Check::new(
                                        CheckKind::UnusedVariable(name.to_string()),
-                                        Range::from_located(excepthandler),
+                                        name_range,
                                    ));
                                }
                            }
@@ -2724,10 +2773,6 @@ where
    }

    fn visit_arguments(&mut self, arguments: &'b Arguments) {
-        if self.settings.enabled.contains(&CheckCode::F831) {
-            self.checks
-                .extend(pyflakes::checks::duplicate_arguments(arguments));
-        }
        if self.settings.enabled.contains(&CheckCode::B006) {
            flake8_bugbear::plugins::mutable_argument_default(self, arguments);
        }
@@ -3608,7 +3653,22 @@ impl<'a> Checker<'a> {

                    let defined_by = binding.source.as_ref().unwrap();
                    let defined_in = self.child_to_parent.get(defined_by);
-                    if self.is_ignored(&CheckCode::F401, binding.range.location.row()) {
+                    let child = defined_by.0;
+
+                    let check_lineno = binding.range.location.row();
+                    let parent_lineno = if matches!(child.node, StmtKind::ImportFrom { .. })
+                        && child.location.row() != check_lineno
+                    {
+                        Some(child.location.row())
+                    } else {
+                        None
+                    };
+
+                    if self.is_ignored(&CheckCode::F401, check_lineno)
+                        || parent_lineno.map_or(false, |parent_lineno| {
+                            self.is_ignored(&CheckCode::F401, parent_lineno)
+                        })
+                    {
                        ignored
                            .entry((defined_by, defined_in))
                            .or_default()
@@ -3655,26 +3715,40 @@ impl<'a> Checker<'a> {
                        None
                    };

+                    let multiple = unused_imports.len() > 1;
                    for (full_name, range) in unused_imports {
                        let mut check = Check::new(
-                            CheckKind::UnusedImport(full_name.clone(), ignore_init),
+                            CheckKind::UnusedImport(full_name.clone(), ignore_init, multiple),
                            *range,
                        );
+                        if matches!(child.node, StmtKind::ImportFrom { .. })
+                            && child.location.row() != range.location.row()
+                        {
+                            check.parent(child.location);
+                        }
                        if let Some(fix) = fix.as_ref() {
                            check.amend(fix.clone());
                        }
                        checks.push(check);
                    }
                }
-                for (_, unused_imports) in ignored
+                for ((defined_by, ..), unused_imports) in ignored
                    .into_iter()
                    .sorted_by_key(|((defined_by, _), _)| defined_by.0.location)
                {
+                    let child = defined_by.0;
+                    let multiple = unused_imports.len() > 1;
                    for (full_name, range) in unused_imports {
-                        checks.push(Check::new(
-                            CheckKind::UnusedImport(full_name.clone(), ignore_init),
+                        let mut check = Check::new(
+                            CheckKind::UnusedImport(full_name.clone(), ignore_init, multiple),
                            *range,
-                        ));
+                        );
+                        if matches!(child.node, StmtKind::ImportFrom { .. })
+                            && child.location.row() != range.location.row()
+                        {
+                            check.parent(child.location);
+                        }
+                        checks.push(check);
                    }
                }
            }
@@ -3865,7 +3939,11 @@ impl<'a> Checker<'a> {
                    || self.settings.enabled.contains(&CheckCode::D416)
                    || self.settings.enabled.contains(&CheckCode::D417)
                {
-                    pydocstyle::plugins::sections(self, &docstring);
+                    pydocstyle::plugins::sections(
+                        self,
+                        &docstring,
+                        self.settings.pydocstyle.convention.as_ref(),
+                    );
                }
            }
        }
@@ -3908,16 +3986,26 @@ impl<'a> Checker<'a> {
    }
 }

+#[allow(clippy::too_many_arguments)]
 pub fn check_ast(
    python_ast: &Suite,
    locator: &SourceCodeLocator,
+    stylist: &SourceCodeStyleDetector,
    noqa_line_for: &IntMap<usize, usize>,
    settings: &Settings,
    autofix: flags::Autofix,
    noqa: flags::Noqa,
    path: &Path,
 ) -> Vec<Check> {
-    let mut checker = Checker::new(settings, noqa_line_for, autofix, noqa, path, locator);
+    let mut checker = Checker::new(
+        settings,
+        noqa_line_for,
+        autofix,
+        noqa,
+        path,
+        locator,
+        stylist,
+    );
    checker.push_scope(Scope::new(ScopeKind::Module));
    checker.bind_builtins();

--- a/src/checkers/imports.rs
+++ b/src/checkers/imports.rs
@@ -11,11 +11,13 @@ use crate::isort;
 use crate::isort::track::ImportTracker;
 use crate::settings::{flags, Settings};
 use crate::source_code_locator::SourceCodeLocator;
+use crate::source_code_style::SourceCodeStyleDetector;

 fn check_import_blocks(
    tracker: ImportTracker,
    locator: &SourceCodeLocator,
    settings: &Settings,
+    stylist: &SourceCodeStyleDetector,
    autofix: flags::Autofix,
    package: Option<&Path>,
 ) -> Vec<Check> {
@@ -23,7 +25,7 @@ fn check_import_blocks(
    for block in tracker.into_iter() {
        if !block.imports.is_empty() {
            if let Some(check) =
-                isort::plugins::check_imports(&block, locator, settings, autofix, package)
+                isort::plugins::check_imports(&block, locator, settings, stylist, autofix, package)
            {
                checks.push(check);
            }
@@ -32,11 +34,13 @@ fn check_import_blocks(
    checks
 }

+#[allow(clippy::too_many_arguments)]
 pub fn check_imports(
    python_ast: &Suite,
    locator: &SourceCodeLocator,
    directives: &IsortDirectives,
    settings: &Settings,
+    stylist: &SourceCodeStyleDetector,
    autofix: flags::Autofix,
    path: &Path,
    package: Option<&Path>,
@@ -45,5 +49,5 @@ pub fn check_imports(
    for stmt in python_ast {
        tracker.visit_stmt(stmt);
    }
-    check_import_blocks(tracker, locator, settings, autofix, package)
+    check_import_blocks(tracker, locator, settings, stylist, autofix, package)
 }
--- a/src/checkers/lines.rs
+++ b/src/checkers/lines.rs
@@ -2,7 +2,7 @@

 use crate::checks::{Check, CheckCode};
 use crate::pycodestyle::checks::{line_too_long, no_newline_at_end_of_file};
-use crate::pygrep_hooks::plugins::blanket_type_ignore;
+use crate::pygrep_hooks::plugins::{blanket_noqa, blanket_type_ignore};
 use crate::pyupgrade::checks::unnecessary_coding_comment;
 use crate::settings::{flags, Settings};

@@ -18,6 +18,7 @@ pub fn check_lines(
    let enforce_line_too_long = settings.enabled.contains(&CheckCode::E501);
    let enforce_no_newline_at_end_of_file = settings.enabled.contains(&CheckCode::W292);
    let enforce_blanket_type_ignore = settings.enabled.contains(&CheckCode::PGH003);
+    let enforce_blanket_noqa = settings.enabled.contains(&CheckCode::PGH004);

    let mut commented_lines_iter = commented_lines.iter().peekable();
    for (index, line) in contents.lines().enumerate() {
@@ -45,6 +46,14 @@ pub fn check_lines(
                    }
                }
            }
+
+            if enforce_blanket_noqa {
+                if commented_lines.contains(&(index + 1)) {
+                    if let Some(check) = blanket_noqa(index, line) {
+                        checks.push(check);
+                    }
+                }
+            }
        }

        if enforce_line_too_long {
@@ -55,7 +64,11 @@ pub fn check_lines(
    }

    if enforce_no_newline_at_end_of_file {
-        if let Some(check) = no_newline_at_end_of_file(contents) {
+        if let Some(check) = no_newline_at_end_of_file(
+            contents,
+            matches!(autofix, flags::Autofix::Enabled)
+                && settings.fixable.contains(&CheckCode::W292),
+        ) {
            checks.push(check);
        }
    }
--- a/src/checkers/noqa.rs
+++ b/src/checkers/noqa.rs
@@ -1,11 +1,13 @@
 //! `NoQA` enforcement and validation.

+use std::str::FromStr;
+
 use nohash_hasher::IntMap;
 use rustpython_parser::ast::Location;

 use crate::ast::types::Range;
 use crate::autofix::Fix;
-use crate::checks::{Check, CheckCode, CheckKind, CODE_REDIRECTS};
+use crate::checks::{Check, CheckCode, CheckKind, UnusedCodes, CODE_REDIRECTS};
 use crate::noqa;
 use crate::noqa::{is_file_exempt, Directive};
 use crate::settings::{flags, Settings};
@@ -23,12 +25,6 @@ pub fn check_noqa(

    let enforce_noqa = settings.enabled.contains(&CheckCode::RUF100);

-    checks.sort_by_key(|check| check.location);
-    let mut checks_iter = checks.iter().enumerate().peekable();
-    if let Some((_index, check)) = checks_iter.peek() {
-        assert!(check.location.row() >= 1);
-    }
-
    let lines: Vec<&str> = contents.lines().collect();
    for lineno in commented_lines {
        // If we hit an exemption for the entire file, bail.
@@ -42,17 +38,18 @@ pub fn check_noqa(
                .entry(lineno - 1)
                .or_insert_with(|| (noqa::extract_noqa_directive(lines[lineno - 1]), vec![]));
        }
+    }

-        // Remove any ignored checks.
-        while let Some((index, check)) =
-            checks_iter.next_if(|(_index, check)| check.location.row() <= *lineno)
-        {
-            // Grab the noqa (logical) line number for the current (physical) line.
-            // If there are newlines at the end of the file, they won't be represented in
-            // `noqa_line_for`, so fallback to the current line.
-            let check_lineno = check.location.row();
-            let noqa_lineno = noqa_line_for.get(&check_lineno).unwrap_or(&check_lineno);
-            if noqa_lineno == lineno {
+    // Remove any ignored checks.
+    for (index, check) in checks.iter().enumerate() {
+        if check.kind == CheckKind::BlanketNOQA {
+            continue;
+        }
+
+        // Is the check ignored by a `noqa` directive on the parent line?
+        if let Some(parent_lineno) = check.parent.map(|location| location.row()) {
+            let noqa_lineno = noqa_line_for.get(&parent_lineno).unwrap_or(&parent_lineno);
+            if commented_lines.contains(noqa_lineno) {
                let noqa = noqa_directives.entry(noqa_lineno - 1).or_insert_with(|| {
                    (noqa::extract_noqa_directive(lines[noqa_lineno - 1]), vec![])
                });
@@ -60,17 +57,41 @@ pub fn check_noqa(
                    (Directive::All(..), matches) => {
                        matches.push(check.kind.code().as_ref());
                        ignored.push(index);
+                        continue;
                    }
                    (Directive::Codes(.., codes), matches) => {
                        if noqa::includes(check.kind.code(), codes) {
                            matches.push(check.kind.code().as_ref());
                            ignored.push(index);
+                            continue;
                        }
                    }
                    (Directive::None, ..) => {}
                }
            }
        }
+
+        // Is the check ignored by a `noqa` directive on the same line?
+        let check_lineno = check.location.row();
+        let noqa_lineno = noqa_line_for.get(&check_lineno).unwrap_or(&check_lineno);
+        if commented_lines.contains(noqa_lineno) {
+            let noqa = noqa_directives
+                .entry(noqa_lineno - 1)
+                .or_insert_with(|| (noqa::extract_noqa_directive(lines[noqa_lineno - 1]), vec![]));
+            match noqa {
+                (Directive::All(..), matches) => {
+                    matches.push(check.kind.code().as_ref());
+                    ignored.push(index);
+                }
+                (Directive::Codes(.., codes), matches) => {
+                    if noqa::includes(check.kind.code(), codes) {
+                        matches.push(check.kind.code().as_ref());
+                        ignored.push(index);
+                    }
+                }
+                (Directive::None, ..) => {}
+            }
+        }
    }

    // Enforce that the noqa directive was actually used (RUF100).
@@ -98,18 +119,29 @@ pub fn check_noqa(
                    }
                }
                Directive::Codes(spaces, start, end, codes) => {
-                    let mut invalid_codes = vec![];
+                    let mut disabled_codes = vec![];
+                    let mut unknown_codes = vec![];
+                    let mut unmatched_codes = vec![];
                    let mut valid_codes = vec![];
                    let mut self_ignore = false;
                    for code in codes {
                        let code = CODE_REDIRECTS.get(code).map_or(code, AsRef::as_ref);
                        if code == CheckCode::RUF100.as_ref() {
                            self_ignore = true;
+                            break;
+                        }
+
+                        if matches.contains(&code) || settings.external.contains(code) {
+                            valid_codes.push(code);
                        } else {
-                            if matches.contains(&code) || settings.external.contains(code) {
-                                valid_codes.push(code);
+                            if let Ok(check_code) = CheckCode::from_str(code) {
+                                if settings.enabled.contains(&check_code) {
+                                    unmatched_codes.push(code);
+                                } else {
+                                    disabled_codes.push(code);
+                                }
                            } else {
-                                invalid_codes.push(code);
+                                unknown_codes.push(code);
                            }
                        }
                    }
@@ -118,14 +150,25 @@ pub fn check_noqa(
                        continue;
                    }

-                    if !invalid_codes.is_empty() {
+                    if !(disabled_codes.is_empty()
+                        && unknown_codes.is_empty()
+                        && unmatched_codes.is_empty())
+                    {
                        let mut check = Check::new(
-                            CheckKind::UnusedNOQA(Some(
-                                invalid_codes
+                            CheckKind::UnusedNOQA(Some(UnusedCodes {
+                                disabled: disabled_codes
                                    .iter()
                                    .map(|code| (*code).to_string())
                                    .collect(),
-                            )),
+                                unknown: unknown_codes
+                                    .iter()
+                                    .map(|code| (*code).to_string())
+                                    .collect(),
+                                unmatched: unmatched_codes
+                                    .iter()
+                                    .map(|code| (*code).to_string())
+                                    .collect(),
+                            })),
                            Range {
                                location: Location::new(row + 1, start),
                                end_location: Location::new(row + 1, end),
--- a/src/checkers/tokens.rs
+++ b/src/checkers/tokens.rs
@@ -7,7 +7,7 @@ use crate::lex::docstring_detection::StateMachine;
 use crate::ruff::checks::Context;
 use crate::settings::flags;
 use crate::source_code_locator::SourceCodeLocator;
-use crate::{eradicate, flake8_quotes, pycodestyle, ruff, Settings};
+use crate::{eradicate, flake8_implicit_str_concat, flake8_quotes, pycodestyle, ruff, Settings};

 pub fn check_tokens(
    locator: &SourceCodeLocator,
@@ -26,6 +26,8 @@ pub fn check_tokens(
        || settings.enabled.contains(&CheckCode::Q003);
    let enforce_commented_out_code = settings.enabled.contains(&CheckCode::ERA001);
    let enforce_invalid_escape_sequence = settings.enabled.contains(&CheckCode::W605);
+    let enforce_implicit_string_concatenation = settings.enabled.contains(&CheckCode::ISC001)
+        || settings.enabled.contains(&CheckCode::ISC002);

    let mut state_machine = StateMachine::default();
    for &(start, ref tok, end) in tokens.iter().flatten() {
@@ -89,11 +91,24 @@ pub fn check_tokens(
        if enforce_invalid_escape_sequence {
            if matches!(tok, Tok::String { .. }) {
                checks.extend(pycodestyle::checks::invalid_escape_sequence(
-                    locator, start, end,
+                    locator,
+                    start,
+                    end,
+                    matches!(autofix, flags::Autofix::Enabled)
+                        && settings.fixable.contains(&CheckCode::W605),
                ));
            }
        }
    }

+    // ISC001, ISC002
+    if enforce_implicit_string_concatenation {
+        checks.extend(
+            flake8_implicit_str_concat::checks::implicit(tokens, locator)
+                .into_iter()
+                .filter(|check| settings.enabled.contains(check.kind.code())),
+        );
+    }
+
    checks
 }
--- a/src/checks.rs
+++ b/src/checks.rs
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Charlie Marsh	0c215365ae	Bump version to 0.0.204	2022-12-31 08:20:09 -05:00
Maksudul Haque	815284f890	Check for Unsupported Files and Display Errors and Warnings (#1509 )	2022-12-31 08:12:55 -05:00
Charlie Marsh	6880338a9a	Restore pyproject.toml	2022-12-31 08:06:08 -05:00
Charlie Marsh	68b749c67d	Remove foo directory	2022-12-31 08:05:04 -05:00
Reiner Gerecke	c0fc55b812	Generate source code with detected line ending (#1487 )	2022-12-31 08:02:29 -05:00
Reiner Gerecke	ba9cf70917	Adjust `test_path` helper to detect round-trip autofix issues (#1501 )	2022-12-31 08:02:13 -05:00
Harutaka Kawamura	f73dfbbfd3	Fix E722 and F707 ranges (#1508 )	2022-12-31 07:58:46 -05:00
Reiner Gerecke	62c273cd22	Include fix commit message when showing violations together with source (#1505 )	2022-12-31 07:54:41 -05:00
Harutaka Kawamura	938ad9a39e	Fix N818 range (#1503 )	2022-12-31 07:43:03 -05:00
Harutaka Kawamura	14248cb8cb	Improve PLW0120 range (#1500 )	2022-12-31 07:42:49 -05:00
Harutaka Kawamura	3a280039e1	Improve F811 range for function and class definitions (#1499 )	2022-12-31 07:42:18 -05:00
Harutaka Kawamura	4e9e58bdc0	Improve `T20X` ranges (#1502 )	2022-12-31 07:41:53 -05:00
Harutaka Kawamura	926b5494ad	Remove unused snapshots (#1497 )	2022-12-31 07:40:38 -05:00
Reiner Gerecke	6717b48ca5	Fix detection of changed imports in isort plugin (#1504 )	2022-12-31 07:37:27 -05:00
Harutaka Kawamura	f7bb5bc858	Remove F831 (#1495 )	2022-12-30 23:57:51 -05:00
Harutaka Kawamura	3e23fd1487	Stop overriding locations for expressions within f-strings (#1494 )	2022-12-30 23:43:59 -05:00
Charlie Marsh	01c74e0629	Add a "fix message" to every autofix-able check (#1489 )	2022-12-30 23:16:03 -05:00
Charlie Marsh	1e3cf87f67	Escape strings when formatting check messages (#1493 )	2022-12-30 22:11:01 -05:00
Charlie Marsh	248447e139	Trim CLI help during generation (#1492 )	2022-12-30 22:03:58 -05:00
Charlie Marsh	95f139583a	Modify pyproject.toml to meet schema compliance	2022-12-30 15:51:35 -05:00
Charlie Marsh	74903f23d6	Bump version to 0.0.203	2022-12-30 15:33:30 -05:00
Charlie Marsh	3ee20a70d3	Remove lingering ruff_options.ts references	2022-12-30 15:33:09 -05:00
Charlie Marsh	4c2fbb7ac0	Remove hidden autoformat command (#1486 )	2022-12-30 15:32:05 -05:00
Charlie Marsh	7a66f98590	Move some argument validation into Clap (#1485 )	2022-12-30 15:29:41 -05:00
Charlie Marsh	a2bf3916f3	Make clean a standalone command	2022-12-30 15:20:18 -05:00
Reiner Gerecke	c9aa7b9308	Generate the README's --help output automatically via cargo +nightly dev generate-all (#1483 )	2022-12-30 15:06:32 -05:00
Charlie Marsh	d880ca6cc6	Add a command to clear the Ruff cache (#1484 )	2022-12-30 13:52:16 -05:00
Reiner Gerecke	080f99b908	Detect line endings and use them during code generation (#1482 )	2022-12-30 12:59:40 -05:00
Charlie Marsh	a7dc491ff1	Fix clippy	2022-12-30 12:34:43 -05:00
Charlie Marsh	cdc8f8c91a	Remove support for `ur` prefixes (#1481 )	2022-12-30 11:21:05 -05:00
Colin Delahunty	138c46e793	Simplified code for unicode fix (#1475 )	2022-12-30 11:18:52 -05:00
Charlie Marsh	a86c57a832	Support multi-line `noqa` directives for 'import from' (#1479 )	2022-12-30 11:16:50 -05:00
Charlie Marsh	818582fe8a	Bump version to 0.0.202	2022-12-30 08:16:32 -05:00
Charlie Marsh	90574c1088	Set editor background on top-level component (#1478 )	2022-12-30 07:55:54 -05:00
Charlie Marsh	3061a35e7c	Use more precise ranges for class and function checks (#1476 )	2022-12-30 07:39:20 -05:00
Martin Fischer	87681697ae	Improve CLI help for `--select` (#1471 )	2022-12-30 07:16:44 -05:00
Martin Fischer	e9ec2a7b36	Add `use test_case::test_case;` to CONTRIBUTING.md I previously tried adding the #[test_case()] attribute macro and got confused because the Rust compilation suddenly failed with: error[E0658]: use of unstable library feature 'custom_test_frameworks': custom test frameworks are an unstable feature which is a quite confusing error message. The solution is to just add `use test_case::test_case;`, so this commit adds that line to the example in CONTRIBUTING.md to spare others this source of confusion.	2022-12-30 07:13:48 -05:00
Martin Fischer	b0bb75dc1c	Add --select to command suggested in CONTRIBUTING.md By default only E* and F* lints are enabled. I previously followed the CONTRIBUTING.md instructions to implement a TID* lint and was confused why my lint wasn't being run.	2022-12-30 07:13:48 -05:00
Martin Fischer	ebca5c2df8	Make banned-api config setting optional (#1465 )	2022-12-30 07:09:56 -05:00
Charlie Marsh	16b10c42f0	Fix lint issues	2022-12-29 23:12:28 -05:00
Charlie Marsh	4a6e5d1549	Bump version to 0.0.201	2022-12-29 23:01:35 -05:00
Charlie Marsh	b078050732	Implicit flake8-implicit-str-concat (#1463 )	2022-12-29 23:00:55 -05:00
Charlie Marsh	5f796b39b4	Run cargo fmt	2022-12-29 22:25:14 -05:00
Martin Fischer	9d34da23bd	Implement TID251 (banning modules & module members) (#1436 )	2022-12-29 22:11:12 -05:00
Charlie Marsh	bde12c3bb3	Restore quick fixes for playground	2022-12-29 20:16:19 -05:00
Colin Delahunty	f735660801	Removed unicode literals (#1448 )	2022-12-29 20:11:33 -05:00
Charlie Marsh	34cd22dfc1	Copy URL but don't update the hash (#1458 )	2022-12-29 19:46:50 -05:00
Charlie Marsh	9fafe16a55	Re-add GitHub badge to the bottom of the page	2022-12-29 19:38:33 -05:00
Charlie Marsh	e9a4cb1c1d	Remove generated TypeScript options (#1456 )	2022-12-29 19:37:49 -05:00
Charlie Marsh	9db825c731	Use trailingComma: 'all' (#1457 )	2022-12-29 19:36:51 -05:00
Charlie Marsh	2c7464604a	Implement dark mode (#1455 )	2022-12-29 19:33:46 -05:00
Charlie Marsh	cd2099f772	Move default options into WASM interface (#1453 )	2022-12-29 18:06:57 -05:00
Adam Turner	091d36cd30	Add Sphinx to user list (#1451 )	2022-12-29 18:06:09 -05:00
Mathieu Kniewallner	02f156c6cb	docs(README): add missing `flake8-simplify` (#1449 )	2022-12-29 17:02:26 -05:00
Charlie Marsh	9f7350961e	Rename config to settings in the playground (#1450 )	2022-12-29 16:59:38 -05:00
Charlie Marsh	118a93260a	Bump version to 0.0.200	2022-12-29 13:31:23 -05:00
Charlie Marsh	1c16255884	Include docstrings for settings enum members (#1446 )	2022-12-29 13:15:44 -05:00
Charlie Marsh	16c4552946	Update snapshots	2022-12-29 13:13:43 -05:00
Charlie Marsh	0ba3989b3d	Make update check enablement cofnigurable (#1445 )	2022-12-29 13:06:22 -05:00
Charlie Marsh	3435e15cba	Avoid caching diffs (#1441 )	2022-12-29 12:51:58 -05:00
Maksudul Haque	781bbbc286	[pygrep-hooks] Adds Check for Blanket `# noqa` (#1440 )	2022-12-29 12:43:16 -05:00
Charlie Marsh	acf0b82f19	Re-style the Ruff playground (#1438 )	2022-12-29 11:47:27 -05:00
Charlie Marsh	057414ddd4	Bump version to 0.0.199	2022-12-28 20:58:43 -05:00
Charlie Marsh	ca94e9aa26	Warn the user when max iteration count is reached (#1433 )	2022-12-28 20:56:43 -05:00
Charlie Marsh	797b5bd261	Split into lint and lint-and-fix methods (#1432 )	2022-12-28 20:14:33 -05:00
Charlie Marsh	a64f62f439	Revert setup.py change	2022-12-28 19:34:20 -05:00
Charlie Marsh	058ee8e6bf	Add a --diff flag to dry-run autofixes (#1431 )	2022-12-28 19:21:29 -05:00
Charlie Marsh	39fc1f0c1b	Add a note on autofix settings	2022-12-28 17:26:38 -05:00
Colin Delahunty	34842b4c4b	PyUpgrade: Replace pipes with `capture_output=True` (#1415 )	2022-12-28 16:53:35 -05:00
Charlie Marsh	dfa6fa8f83	Check in updated snapshots	2022-12-28 16:42:55 -05:00
Colin Delahunty	6131c819ed	Rewrite xml.etree.cElementTree to xml.etree.ElementTree (#1426 )	2022-12-28 16:30:36 -05:00
Hannes Käufler	79ba420faa	Extract duplicated logic into method (#1428 )	2022-12-28 16:10:53 -05:00
Charlie Marsh	d16ba890ae	Turn off wasm-pack tests (#1427 )	2022-12-28 12:55:25 -05:00
Charlie Marsh	6b6851bf1f	Update JSON schema	2022-12-28 12:27:01 -05:00
Charlie Marsh	056718ce75	Remove stray Plugins doc	2022-12-28 12:24:48 -05:00
Charlie Marsh	4521fdf021	Only test --lib for wasm-pack	2022-12-28 10:28:40 -05:00
Maksudul Haque	8e479628f2	Add Support for GitLab CI Code Quality Report Format (#1424 )	2022-12-28 10:10:43 -05:00
Charlie Marsh	2a11c4b1f1	Try increasing wasm-bindgen timeout	2022-12-28 07:39:23 -05:00
Anders Kaseorg	a8cde5a936	Check for keyword arguments before the last star argument (#1420 )	2022-12-27 23:20:03 -05:00
Charlie Marsh	1822b57ed5	Remove 'static	2022-12-27 21:57:32 -05:00
Charlie Marsh	c679570041	Bump version to 0.0.198	2022-12-27 21:39:53 -05:00
Charlie Marsh	edcb3a7217	Support --select ALL to enable all error codes (#1418 )	2022-12-27 21:38:26 -05:00
Charlie Marsh	6e43dc7270	Add nbQA support to the docs (#1417 )	2022-12-27 21:24:07 -05:00
Charlie Marsh	570d0864f2	Add rule to detect keyword arguments before starred arguments (#1416 )	2022-12-27 21:17:22 -05:00
Charlie Marsh	d22e96916c	Automatically detect and respect indentation and quotation code style (#1413 )	2022-12-27 19:45:50 -05:00
Charlie Marsh	043d31dcdf	Bump version to 0.0.197	2022-12-27 17:05:15 -05:00
Charlie Marsh	1392e4cced	Default to double quotes in `code_gen.rs` (#1412 )	2022-12-27 16:17:49 -05:00
Charlie Marsh	59ee89a091	Fix it_converts_docstring_conventions test	2022-12-27 15:41:29 -05:00
Charlie Marsh	6a7c3728ee	Set convention in flake8-to-ruff (#1410 )	2022-12-27 13:51:24 -05:00
Charlie Marsh	0a60eb0aca	Fix invalid reference to ruff_options.rs (#1409 )	2022-12-27 12:12:28 -05:00
Charlie Marsh	3e96803033	Bump version to 0.0.196	2022-12-27 12:02:02 -05:00
Colin Delahunty	c59035139c	Pyupgrade: converts `universal_newlines` to `text` in `subprocess.run` (#1403 )	2022-12-27 12:01:27 -05:00
Charlie Marsh	7632d7eda7	Allow specification of explicit docstring convention (#1408 )	2022-12-27 11:50:28 -05:00
Charlie Marsh	b4dbe62da0	Add cargo +nightly dev generate-all (#1404 )	2022-12-27 10:07:18 -05:00
Harutaka Kawamura	9106d5338b	Replace `make_tokenize` with `make_tokenizer_located` (#1405 )	2022-12-27 10:07:03 -05:00
Reiner Gerecke	534d8d049c	Support isort's force-single-line option (#1366 )	2022-12-27 08:51:32 -05:00
Charlie Marsh	e692c4a2cc	Tweak secret detection for playground releases (#1402 )	2022-12-27 08:41:53 -05:00
Reiner Gerecke	e0b39fa63e	Implement pyupgrade check for io.open alias (#1399 )	2022-12-27 07:47:40 -05:00
Charlie Marsh	320a48977b	Tweak README again	2022-12-26 21:17:18 -05:00
Charlie Marsh	0d05aaeb6e	Add monorepo note	2022-12-26 21:00:14 -05:00
Charlie Marsh	1e4b1533ad	Bump version to 0.0.195	2022-12-26 20:41:39 -05:00
Charlie Marsh	df4f5358f9	Bump pyupgrade implementation count	2022-12-26 19:56:12 -05:00
Colin Delahunty	58c383401c	Replace `typing.Text` with `str` (#1391 )	2022-12-26 19:55:41 -05:00
Charlie Marsh	018b9a2977	Only run playground release in main repo (#1396 )	2022-12-26 19:45:04 -05:00
Charlie Marsh	658cb87ddd	Enable Quick Fix in the playground (#1395 )	2022-12-26 19:25:50 -05:00
Charlie Marsh	0d35087bc6	Choose a more interesting example snippet (#1394 )	2022-12-26 15:19:17 -05:00
Charlie Marsh	b721125af9	Add badge to playground (#1393 )	2022-12-26 15:13:55 -05:00
Charlie Marsh	20d6b21d77	Add ESLint, Prettier, and TypeScript checks (#1384 )	2022-12-26 15:08:22 -05:00
Charlie Marsh	1a27992f47	Enable preview deployments for playground (#1383 )	2022-12-26 14:52:13 -05:00
Charlie Marsh	89cebe1ce2	Update name of Playground job	2022-12-26 12:10:22 -05:00
Reiner Gerecke	bdb1505262	Web playground with WASM (#1279 )	2022-12-26 12:09:17 -05:00
Charlie Marsh	8c018e8261	Add settings validation to lib.rs	2022-12-26 10:12:07 -05:00
Colin Delahunty	debd909b2c	Magic Trailing Commas in isort (#1363 )	2022-12-26 09:40:02 -05:00
Reiner Gerecke	fa54538bd1	Only re-associate inline comments during normalization when necessary (#1380 )	2022-12-26 07:52:13 -05:00
Reiner Gerecke	939f738a71	Update rust python to handle files with BOM (#1379 )	2022-12-26 07:03:13 -05:00
Charlie Marsh	b0f30bef8f	Add support for `ruff.toml` (#1378 )	2022-12-25 21:55:07 -05:00
Charlie Marsh	28c45eb2a3	Remove required versions from pyproject.toml	2022-12-25 20:21:01 -05:00
Charlie Marsh	4dc45912e8	Run cargo dev commands	2022-12-25 20:12:12 -05:00
Charlie Marsh	5ef8bff341	Bump version to 0.0.194	2022-12-25 19:54:45 -05:00
Charlie Marsh	2ab8f77223	Update command-line help text	2022-12-25 19:54:14 -05:00
Charlie Marsh	8b72f55a09	Add `--required-version` (#1376 )	2022-12-25 19:53:50 -05:00
Charlie Marsh	19121219fb	Avoid double-extending past the end when showing source (#1377 )	2022-12-25 19:52:42 -05:00
Charlie Marsh	d9355c989a	Add a `--fix-only` command-line and `pyproject.toml` option (#1375 )	2022-12-25 18:49:56 -05:00
Charlie Marsh	ec80d1cd85	Respect natural ordering for imports (#1374 )	2022-12-25 18:11:41 -05:00
Charlie Marsh	9bb470c7d4	Ignore unused arguments for @overload stubs (#1373 )	2022-12-25 17:22:31 -05:00
Harutaka Kawamura	dca3fcd8d1	Improve `excepthandler_name_range` (#1368 )	2022-12-25 00:12:12 -05:00
Harutaka Kawamura	10f75c9620	Fix F841 (`UnusedVariable`) range in except handler (#1367 )	2022-12-24 22:55:55 -05:00
Charlie Marsh	cc2110449c	Run cargo dev commands	2022-12-24 15:06:12 -05:00
Charlie Marsh	f6ca49e05f	Bump version to 0.0.193	2022-12-24 14:56:26 -05:00
Charlie Marsh	9a7331b2e2	Annotate RUF100 messages with unmatched, disabled, and unknown codes (#1365 )	2022-12-24 14:55:55 -05:00
Edgar R. M	4888afd423	Generate JSON schema for Ruff options (#1329 )	2022-12-24 14:10:22 -05:00
Sawbez	0dc523b081	Add autofix for W605 [InvalidEscapeSequence] (#1361 )	2022-12-24 13:46:28 -05:00
Harutaka Kawamura	63772e335d	Fix B025 location (#1360 )	2022-12-24 12:22:11 -05:00
Reiner Gerecke	7f4ff1e38f	Fix false-positive in RET504 when referencing globals (#1358 )	2022-12-24 12:02:57 -05:00
Reiner Gerecke	32ebc1d227	Don't trigger E721 when comparing with None (#1356 )	2022-12-24 04:45:40 -05:00
Sawbez	4ded155dc0	Add autofix for W292 [NoNewLineAtEndOfFile] (#1354 )	2022-12-23 23:14:17 -05:00
Harutaka Kawamura	201e1250de	Update RustPython to use the correct `BinOp` location (#1355 )	2022-12-23 22:58:39 -05:00
Reiner Gerecke	102b049a32	Add cache-dir to command-line and pyproject.toml (#1351 )	2022-12-23 22:58:29 -05:00
Charlie Marsh	74f49eda64	Bump compatibility to 3.11 (#1352 )	2022-12-23 12:12:11 -05:00
Reiner Gerecke	9da3e2cca1	Implement "native literals" check from pyupgrade (#1350 )	2022-12-23 11:40:32 -05:00
Charlie Marsh	e290050821	Avoid enabling all EM checks at once (#1349 )	2022-12-23 08:25:07 -05:00
Charlie Marsh	bc9ed0a4ef	Tweak LSP docs	2022-12-22 22:16:32 -05:00
Charlie Marsh	20b9b44973	Link to ruff-lsp docs	2022-12-22 21:53:11 -05:00
Charlie Marsh	6e5a553235	Update Neovim instructions	2022-12-22 21:52:30 -05:00
Charlie Marsh	2a08a63f17	Add a link to the PyCharm plugin (#1345 )	2022-12-22 21:50:24 -05:00
Colin Delahunty	d4290e6721	Update CONTRIBUTING.md (#1344 )	2022-12-22 21:04:19 -05:00
				`@@ -0,0 +1 @@`
				`from long_module_name import member_one, member_two, member_three, member_four, member_five`
				`@@ -0,0 +1,2 @@`
				`from long_module_name import member_one, member_two, member_three, member_four, member_five`