ci.yaml

name: Continuous Integration

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

concurrency:
  group: "${{ github.workflow }}-${{ github.ref }}"
  cancel-in-progress: true

env:
  CLICOLOR: 1
  CARGO_TERM_COLOR: always
  RUST_BACKTRACE: 1

jobs:
  ci:
    name: CI
    needs: [fmt, check, docs, lock, test, coverage]
    runs-on: ubuntu-latest
    if: "always()"
    steps:
      - name: Failed
        run: exit 1
        if: "contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') || contains(needs.*.result, 'skipped')"

  fmt:
    name: Check formatting
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: stable
          components: rustfmt
      - uses: Swatinem/rust-cache@v2
      - name: Check formatting
        run: cargo fmt --all -- --check

  check:
    name: Cargo check
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: stable
      - uses: Swatinem/rust-cache@v2
      - name: Check
        run: cargo check

  docs:
    name: Check documentation
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: stable
      - uses: Swatinem/rust-cache@v2
      - name: Run documentation
        run: cargo doc --workspace --all-features --no-deps --document-private-items

  lock:
    name: Check Cargo.lock
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: stable
      - uses: Swatinem/rust-cache@v2
      - name: "Is Cargo.lock up to date?"
        run: cargo update --locked

  test:
    name: Test on ${{ matrix.os }} with Rust ${{ matrix.toolchain }}
    strategy:
      matrix:
        build: [nightly, linux, windows, mac]
        include:
          - build: nightly
            os: ubuntu-latest
            toolchain: nightly
          - build: linux
            os: ubuntu-latest
            toolchain: stable
          - build: windows
            os: windows-latest
            toolchain: stable
          - build: mac
            os: macos-latest
            toolchain: stable
    runs-on: ${{ matrix.os }}
    continue-on-error: ${{ matrix.rust != 'stable' }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.toolchain }}
      - uses: Swatinem/rust-cache@v2
      - name: Build
        run: cargo build
      - name: Test
        run: cargo test

  coverage:
    name: Coverage
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: nightly
          components: llvm-tools-preview
      - uses: Swatinem/rust-cache@v2
      - name: Install llvm-cov
        uses: taiki-e/install-action@v2
        with:
          tool: cargo-llvm-cov
      - name: Generate coverage
        run: cargo llvm-cov --doctests
      - name: Determine if CODECOV_TOKEN is available
        id: has_codecov
        run: echo 'result=${{ secrets.CODECOV_TOKEN }}' >> $GITHUB_OUTPUT
      - name: Generate coverage file
        run: cargo llvm-cov --doctests --no-run --lcov --output-path lcov.info
        if: steps.has_codecov.outputs.result != 0
      - name: Upload to codecov.io
        uses: codecov/codecov-action@v4
        with:
          files: lcov.info
          token: ${{ secrets.CODECOV_TOKEN }}
          verbose: true
          fail_ci_if_error: false
        if: steps.has_codecov.outputs.result != 0