on:
  push:
    branches:
      - staging
      - trying

name: Continuous integration

jobs:
  check:
    name: Check
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - run: sh tests/check-msrv-consistency.sh
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true
      - uses: actions-rs/cargo@v1
        with:
          command: check
          args: --all-targets

  test:
    name: Test suite
    runs-on: ubuntu-latest
    needs: check
    strategy:
      matrix:
        toolchain: [stable, beta, nightly, 1.62.1]
      fail-fast: false
    steps:
      - uses: actions/checkout@v2
        name: Checkout
      - uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-${{ matrix.toolchain }}-${{ hashFiles('Cargo.toml') }}
      - uses: actions-rs/toolchain@v1
        name: Install Rust toolchain
        with:
          profile: minimal
          toolchain: ${{ matrix.toolchain }}
          override: true
      - uses: actions-rs/cargo@v1
        name: Test documentation in debug mode
        with:
          command: test
          args: --doc
      - uses: actions-rs/cargo@v1
        name: Test documentation in release mode
        with:
          command: test
          args: --doc --release
      - uses: actions-rs/cargo@v1
        name: Test in debug mode
        with:
          command: test
          args: --tests --benches
      - uses: actions-rs/cargo@v1
        name: Test in release mode
        with:
          command: test
          args: --release --tests --benches

  test-minimal-versions:
    name: Test with minimal versions
    runs-on: ubuntu-latest
    needs: check
    steps:
      - uses: actions/checkout@v2
        name: Checkout
      - uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-nightly-minimal-${{ hashFiles('Cargo.toml') }}
      - uses: actions-rs/toolchain@v1
        name: Install Rust toolchain
        with:
          profile: minimal
          toolchain: nightly
          override: true
      - run: cargo update -Zminimal-versions
        name: Set dependencies to the minimal version allowed
      - uses: actions-rs/cargo@v1
        name: Test with minimal version dependencies
        with:
          command: test
          args: --tests --benches

  fmt:
    name: Rustfmt
    runs-on: ubuntu-latest
    needs: check
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true
      - run: rustup component add rustfmt
      - uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --all -- --check

  clippy:
    name: Clippy
    runs-on: ubuntu-latest
    needs: check
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: nightly
          override: true
      - run: rustup component add clippy
      - uses: actions-rs/cargo@v1
        with:
          command: clippy
          args: -- -D warnings
