django-language-server/.github/workflows/lint.yml

name: lint

on:
  pull_request:
  push:
    branches: [main]
  workflow_call:

concurrency:
  group: lint-${{ github.head_ref }}
  cancel-in-progress: true

permissions:
  contents: read

env:
  CARGO_TERM_COLOR: always
  FORCE_COLOR: "1"
  PYTHONUNBUFFERED: "1"

jobs:
  pre-commit:
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/checkout@v5
        with:
          persist-credentials: false

      - name: Install uv
        uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41
        with:
          activate-environment: true
          enable-cache: true

      # HACK: there's a bug in either `astral-sh/setup-uv` or pre-commit-uv or both
      # because uv gets installed to `/opt/hostedtoolcache/uv/<version>/x86_64/uv`
      # and pre-commit-uv apparently only looks for it at `~/.local/bin/uv`
      - run: |
          mkdir -p ~/.local/bin
          ln -sf $(which uv) ~/.local/bin/uv

      - uses: actions/cache@v4
        with:
          path: ~/.cache/pre-commit/
          key: pre-commit-1|${{ hashFiles('.pre-commit-config.yaml') }}

      - name: Run pre-commit
        run: |
          SKIP=no-commit-to-branch \
          uv run --no-project --with "nox[uv]" nox --session lint

  rust-changes:
    runs-on: ubuntu-latest
    outputs:
      rust: ${{ steps.filter.outputs.rust }}
    steps:
      - uses: actions/checkout@v5
        with:
          persist-credentials: false

      - uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
        id: filter
        with:
          filters: |
            rust:
              - '.github/workflows/lint.yml'
              - 'crates/**'
              - 'Cargo.lock'
              - 'Cargo.toml'

  rustfmt:
    runs-on: ubuntu-24.04
    needs: rust-changes
    if: needs.rust-changes.outputs.rust == 'true'
    steps:
      - uses: actions/checkout@v5
        with:
          persist-credentials: false

      - name: Cache rustup toolchain
        uses: actions/cache@v4
        with:
          path: |
            ~/.rustup
          key: ${{ runner.os }}-${{ runner.arch }}-rustup-nightly-${{ hashFiles('.github/workflows/lint.yml') }}
          restore-keys: |
            ${{ runner.os }}-${{ runner.arch }}-rustup-nightly-

      - name: Cache Cargo dependencies
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/git
            ~/.cargo/registry
          key: ${{ runner.os }}-${{ runner.arch }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            ${{ runner.os }}-${{ runner.arch }}-cargo-registry-
            ${{ runner.os }}-cargo-registry-

      - uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c
        with:
          toolchain: nightly
          components: rustfmt

      - name: Run rustfmt
        run: cargo +nightly fmt --all -- --check

  clippy:
    runs-on: ubuntu-24.04
    needs: rust-changes
    if: needs.rust-changes.outputs.rust == 'true'
    steps:
      - uses: actions/checkout@v5
        with:
          persist-credentials: false

      - name: Cache rustup toolchain
        uses: actions/cache@v4
        with:
          path: |
            ~/.rustup
          key: ${{ runner.os }}-${{ runner.arch }}-rustup-${{ hashFiles('rust-toolchain.toml') }}
          restore-keys: |
            ${{ runner.os }}-${{ runner.arch }}-rustup-

      - name: Cache Cargo dependencies
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/git
            ~/.cargo/registry
          key: ${{ runner.os }}-${{ runner.arch }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            ${{ runner.os }}-${{ runner.arch }}-cargo-registry-
            ${{ runner.os }}-cargo-registry-

      - uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c
        with:
          components: clippy

      - name: Run clippy
        run: cargo clippy --all-targets --all-features --benches -- -D warnings

  cargo-check:
    runs-on: ubuntu-24.04
    needs: rust-changes
    if: needs.rust-changes.outputs.rust == 'true'
    steps:
      - uses: actions/checkout@v5
        with:
          persist-credentials: false

      - name: Cache rustup toolchain
        uses: actions/cache@v4
        with:
          path: |
            ~/.rustup
          key: ${{ runner.os }}-${{ runner.arch }}-rustup-${{ hashFiles('rust-toolchain.toml') }}
          restore-keys: |
            ${{ runner.os }}-${{ runner.arch }}-rustup-

      - name: Cache Cargo registry
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/git
            ~/.cargo/registry
          key: ${{ runner.os }}-${{ runner.arch }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            ${{ runner.os }}-${{ runner.arch }}-cargo-registry-
            ${{ runner.os }}-cargo-registry-

      - uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c

      - name: Run cargo check
        run: cargo check --all-targets --all-features