check.yml

name: Check

on:
  push:
    branches:
      - main
  pull_request:

env:
  CARGO_TERM_COLOR: always

# ensure that the workflow is only triggered once per PR, subsequent pushes to the PR will cancel
# and restart the workflow. See https://docs.github.com/en/actions/using-jobs/using-concurrency
concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  rustfmt:
    name: Rustfmt
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Rust stable
        uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt
      - name: Run cargo fmt
        run: cargo fmt -- --check
      - name: Cache Cargo dependencies
        uses: Swatinem/rust-cache@v2
  clippy:
    name: Clippy (${{ matrix.toolchain }})
    runs-on: ubuntu-latest
    permissions:
      checks: write
    strategy:
      fail-fast: false
      matrix:
        # Get early warnings about new lints introduced in the beta channel
        toolchain: [stable, beta]
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Rust stable
        uses: dtolnay/rust-toolchain@stable
        with:
          components: clippy
      - name: Run clippy action
        uses: clechasseur/rs-clippy-check@v3
      - name: Cache Cargo dependencies
        uses: Swatinem/rust-cache@v2
  docs:
    # run docs generation on nightly rather than stable. This enables features like
    # https://doc.rust-lang.org/beta/unstable-book/language-features/doc-cfg.html which allows an
    # API be documented as only available in some specific platforms.
    name: Check docs
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Install Rust nightly
        uses: dtolnay/rust-toolchain@nightly
      - name: Run cargo doc
        run: cargo doc --no-deps --all-features
        env:
          RUSTDOCFLAGS: --cfg docsrs
  msrv:
    # check that we can build using the minimal rust version that is specified by this crate
    name: Check MSRV (1.61)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Install Rust 1.61
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: "1.61"
      - name: cargo +1.61 check
        run: cargo check