permissions:
  contents: read
on:
  push:
    branches: [main]
  pull_request:
# Spend CI time only on latest ref: https://github.com/jonhoo/rust-ci-conf/pull/5
concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true
name: check
jobs:
  fmt:
    runs-on: ubuntu-latest
    name: stable / fmt
    steps:
      - uses: actions/checkout@v3
        with:
          submodules: true
      - name: Install stable
        uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt
      - name: cargo fmt --check
        run: cargo fmt --check
  clippy:
    runs-on: ubuntu-latest
    name: ${{ matrix.toolchain }} / clippy
    permissions:
      contents: read
      checks: write
    strategy:
      fail-fast: false
      matrix:
        toolchain: [stable, beta]
    steps:
      - uses: actions/checkout@v3
        with:
          submodules: true
      - name: Install ${{ matrix.toolchain }}
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.toolchain }}
          components: clippy
      - name: cargo clippy
        uses: actions-rs/clippy-check@v1
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
  doc:
    runs-on: ubuntu-latest
    name: nightly / doc
    steps:
      - uses: actions/checkout@v3
        with:
          submodules: true
      - name: Install nightly
        uses: dtolnay/rust-toolchain@nightly
      - name: cargo doc
        run: cargo doc --no-deps --all-features
        env:
          RUSTDOCFLAGS: --cfg docsrs
  hack:
    runs-on: ubuntu-latest
    name: ubuntu / stable / features
    steps:
      - uses: actions/checkout@v3
        with:
          submodules: true
      - name: Install stable
        uses: dtolnay/rust-toolchain@stable
      - name: cargo install cargo-hack
        uses: taiki-e/install-action@cargo-hack
      # intentionally no target specifier; see https://github.com/jonhoo/rust-ci-conf/pull/4
      - name: cargo hack
        run: cargo hack --feature-powerset check
  msrv:
    runs-on: ubuntu-latest
    # we use a matrix here just because env can't be used in job names
    # https://docs.github.com/en/actions/learn-github-actions/contexts#context-availability
    strategy:
      matrix:
        msrv: [1.56.1] # 2021 edition requires 1.56
    name: ubuntu / ${{ matrix.msrv }}
    steps:
      - uses: actions/checkout@v3
        with:
          submodules: true
      - name: Install ${{ matrix.msrv }}
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.msrv }}
      - name: cargo +${{ matrix.msrv }} check
        run: cargo check