ci.yml

on:
  pull_request:
  push:
    branches: [main]

name: Continuous Integration

jobs:
  # Workaround for making Github Actions skip based on commit message `[skip ci]`
  # Source https://gist.github.com/ybiquitous/c80f15c18319c63cae8447a3be341267
  prepare:
    runs-on: ubuntu-latest
    if: |
      !contains(format('{0} {1} {2}', github.event.head_commit.message, github.event.pull_request.title, github.event.pull_request.body), '[skip ci]')
    steps:
      - run: |
          cat <<'MESSAGE'
          github.event_name: ${{ toJson(github.event_name) }}
          github.event:
          ${{ toJson(github.event) }}
          MESSAGE
  check:
    name: Check
    runs-on: ubuntu-latest
    needs: prepare
    steps:
      - uses: actions/checkout@v4
      - uses: actions/cache@v3
        name: Cache Cargo registry
        with:
          path: ~/.cargo/registry
          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('Cargo.lock') }}
      - uses: dtolnay/rust-toolchain@stable
        name: Set Rust toolchain
      - run: cargo check --all --all-targets --workspace

  test:
    name: Test Suite
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os:
          - "macOS-latest"
          - "windows-latest"
          - "ubuntu-latest"
        rust: [stable, nightly]
    needs: prepare
    steps:
      - uses: actions/checkout@v4
      - uses: actions/cache@v3
        name: Cache Cargo registry
        with:
          path: ~/.cargo/registry
          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('Cargo.lock') }}
      - uses: dtolnay/rust-toolchain@master
        name: Set Rust toolchain
        with:
          toolchain: ${{ matrix.rust }}
      - name: cargo test nightly
        run: cargo test
        if: matrix.rust == 'nightly'
        env:
          CARGO_INCREMENTAL: "0"
          RUSTFLAGS: "-Zprofile -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests"
          RUSTDOCFLAGS: "-Zprofile -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests"
      - name: cargo test stable
        run: cargo test --all --all-features --all-targets --workspace
        if: matrix.rust == 'stable'
      - id: coverage
        if: matrix.os == 'ubuntu-latest' && matrix.rust == 'nightly'
        uses: actions-rs/grcov@v0.1
        with:
          config: .github/grcov.yml
      - name: Push grcov results to Coveralls
        if: matrix.os == 'ubuntu-latest' && matrix.rust == 'nightly'
        uses: coverallsapp/github-action@master
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          path-to-lcov: ${{ steps.coverage.outputs.report }}

  fmt:
    name: Rustfmt
    runs-on: ubuntu-latest
    needs: prepare
    steps:
      - uses: actions/checkout@v4
      - uses: actions/cache@v3
        name: Cache Cargo registry
        with:
          path: ~/.cargo/registry
          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('Cargo.lock') }}
      - uses: dtolnay/rust-toolchain@stable
        name: Set Rust toolchain
        with:
          components: rustfmt
      - run: cargo fmt --all -- --check

  clippy:
    name: Clippy
    runs-on: ubuntu-latest
    needs: prepare
    steps:
      - uses: actions/checkout@v4
      - uses: actions/cache@v3
        name: Cache Cargo registry
        with:
          path: ~/.cargo/registry
          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('Cargo.lock') }}
      - uses: dtolnay/rust-toolchain@stable
        name: Set Rust toolchain
        with:
          components: clippy
      - run: cargo clippy --all --all-features --all-targets --workspace -- -D warnings
        env:
          CARGO_INCREMENTAL: "0"