name: Simple build & test

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

env:
  CARGO_TERM_COLOR: always

jobs:
  tests:
    name: ${{ matrix.make.name }} (${{ matrix.os }})
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest]
        rust: [stable, nightly]
        task:
          - name: Clippy
            cmd: "cargo clippy -D warnings"
          - name: Test
            cmd: "cargo test"
          - name: Format
            cmd: "cargo fmt --all --check"
          - name: Build
            cmd: "cargo build --frozen --release"
        include:
          - os: ubuntu-latest
            sccache-path: /home/runner/.cache/sccache
          - os: macos-latest
            sccache-path: /Users/runner/Library/Caches/Mozilla.sccache
        exclude:
          - os: macos-latest
            rust: stable
            task:
              name: Clippy
          - os: macos-latest
            rust: nightly
            task:
              name: Clippy
          - os: macos-latest
            rust: stable
            task:
              name: Format
          - os: macos-latest
            rust: nightly
            task:
              name: Format
    env:
      RUST_BACKTRACE: full
      RUSTC_WRAPPER: sccache
      RUSTV: ${{ matrix.rust }}
      SCCACHE_CACHE_SIZE: 2G
      SCCACHE_DIR: ${{ matrix.sccache-path }}
    steps:
      - uses: actions/checkout@v3
      - name: Install sccache (ubuntu-latest)
        if: matrix.os == 'ubuntu-latest'
        env:
          LINK: https://github.com/mozilla/sccache/releases/download
          SCCACHE_VERSION: 0.2.13
        run: |
          SCCACHE_FILE=sccache-$SCCACHE_VERSION-x86_64-unknown-linux-musl
          mkdir -p $HOME/.local/bin
          curl -L "$LINK/$SCCACHE_VERSION/$SCCACHE_FILE.tar.gz" | tar xz
          mv -f $SCCACHE_FILE/sccache $HOME/.local/bin/sccache
          echo "$HOME/.local/bin" >> $GITHUB_PATH          
      - name: Install sccache (macos-latest)
        if: matrix.os == 'macos-latest'
        run: |
          brew update
          brew install sccache          
      - name: Install Rust ${{ matrix.rust }}
        uses: actions-rs/toolchain@v1
        with:
          toolchain: ${{ matrix.rust }}
          profile: minimal
          override: true
      - name: Cache cargo registry
        uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git            
          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            ${{ runner.os }}-cargo-            
      - name: Save sccache
        uses: actions/cache@v2
        with:
          path: ${{ matrix.sccache-path }}
          key: ${{ runner.os }}-sccache-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            ${{ runner.os }}-sccache-            
      - name: Start sccache server
        run: sccache --start-server
      - name: Install rustfmt
        if: matrix.task.name == 'Format'
        run: rustup component add rustfmt
      - name: ${{ matrix.task.name }}
        run: ${{ matrix.task.cmd }}
      - name: Print sccache stats
        run: sccache --show-stats
      - name: Stop sccache server
        run: sccache --stop-server
        continue-on-error: true