name: Build
on:
  pull_request:
  push:
    branches:
      - main
  schedule:
    - cron: '00 01 * * *'

jobs:
  check:
    name: Check
    runs-on: ubuntu-latest
    strategy:
      matrix:
        rust: [stable, msrv]
    steps:
      - name: Checkout sources
        uses: actions/checkout@v3

      - name: Use MSRV rust toolchain
        if: matrix.rust == 'msrv'
        run: cp .github/workflows/msrv-rust-toolchain.toml rust-toolchain.toml

      - name: Install stable toolchain
        uses: helix-editor/rust-toolchain@v1
        with:
          profile: minimal
          override: true

      - uses: Swatinem/rust-cache@v1

      - name: Run cargo check
        uses: actions-rs/cargo@v1
        with:
          command: check

  test:
    name: Test Suite
    runs-on: ${{ matrix.os }}
    env:
      RUST_BACKTRACE: 1
      HELIX_LOG_LEVEL: info
    steps:
      - name: Checkout sources
        uses: actions/checkout@v3

      - name: Install stable toolchain
        uses: helix-editor/rust-toolchain@v1
        with:
          profile: minimal
          override: true

      - uses: Swatinem/rust-cache@v1

      - name: Cache test tree-sitter grammar
        uses: actions/cache@v3
        with:
          path: runtime/grammars
          key: ${{ runner.os }}-stable-v${{ env.CACHE_VERSION }}-tree-sitter-grammars-${{ hashFiles('languages.toml') }}
          restore-keys: ${{ runner.os }}-stable-v${{ env.CACHE_VERSION }}-tree-sitter-grammars-

      - name: Run cargo test
        uses: actions-rs/cargo@v1
        with:
          command: test
          args: --workspace

      - name: Run cargo integration-test
        uses: actions-rs/cargo@v1
        with:
          command: integration-test

    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]

  lints:
    name: Lints
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v3

      - name: Install stable toolchain
        uses: helix-editor/rust-toolchain@v1
        with:
          profile: minimal
          override: true
          components: rustfmt, clippy

      - uses: Swatinem/rust-cache@v1

      - name: Run cargo fmt
        uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --all -- --check

      - name: Run cargo clippy
        uses: actions-rs/cargo@v1
        with:
          command: clippy
          args: --all-targets -- -D warnings

      - name: Run cargo doc
        uses: actions-rs/cargo@v1
        with:
          command: doc
          args: --no-deps --workspace --document-private-items
        env:
          RUSTDOCFLAGS: -D warnings

  docs:
    name: Docs
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v3

      - name: Install stable toolchain
        uses: helix-editor/rust-toolchain@v1
        with:
          profile: minimal
          override: true

      - uses: Swatinem/rust-cache@v1

      - name: Generate docs
        uses: actions-rs/cargo@v1
        with:
          command: xtask
          args: docgen

      - name: Check uncommitted documentation changes
        run: |
          git diff
          git diff-files --quiet \
            || (echo "Run 'cargo xtask docgen', commit the changes and push again" \
            && exit 1)

  queries:
    name: Tree-sitter queries
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v3

      - name: Install stable toolchain
        uses: helix-editor/rust-toolchain@v1
        with:
          profile: minimal
          override: true

      - uses: Swatinem/rust-cache@v1

      - name: Generate docs
        uses: actions-rs/cargo@v1
        with:
          command: xtask
          args: query-check