on: [push, pull_request]

jobs:

  rustfmt:
    name: Rustfmt
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v2

      - name: Install stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          profile: minimal
          override: true
          components: rustfmt

      - name: Cache cargo registry, index and build directory
        uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            ./target
          key: rustfmt-${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

      - name: Check Formatting
        uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --all -- --check

  clippy:
    name: Clippy
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v2

      - name: Install stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          profile: minimal
          override: true
          components: rustfmt

      - name: Cache cargo registry, index and build directory
        uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            ./target
          key: clippy-${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

      - name: Clippy Linting
        uses: actions-rs/cargo@v1
        with:
          command: clippy
          args: -- -D warnings


  test:
    name: Test Suite
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        # add windows-latest when it is clear why tests are failing
        os: [ubuntu-latest, macos-latest]

    steps:
      - name: Checkout sources
        uses: actions/checkout@v2

      - name: Install stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          profile: minimal
          override: true

      - name: Cache cargo registry, index and build directory
        uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            ./target
          key: test-${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

      - name: Run Tests
        uses: actions-rs/cargo@v1
        with:
          command: test