ci.yml

name: ci
on:
  pull_request:
  push:
    branches:
    - master
jobs:
  build-and-test:
    name: build-and-test
    runs-on: ${{ matrix.image }}
    env:
      # Emit backtraces on panics.
      RUST_BACKTRACE: 1
    strategy:
      matrix:
        build: [linux-x64, macos-x64, win-x64-msvc]
        include:
        - build: linux-x64
          os: ubuntu
          image: ubuntu-20.04
          target: x86_64-unknown-linux-gnu
        - build: macos-x64
          os: macos
          image: macos-12
          target: x86_64-apple-darwin
        - build: win-x64-msvc
          os: windows
          image: windows-2022
          target: x86_64-pc-windows-msvc

    steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    # See: https://github.com/actions/cache/blob/main/examples.md#rust---cargo
    # And also https://github.com/rust-lang/rustup/blob/25dc87dc605adc0843c9369063333997ae806008/.github/workflows/linux-builds-on-stable.yaml#L81
    - name: Cache cargo registry and git trees
      id: do-cache-cargo
      uses: actions/cache@v4
      with:
        path: |
          ~/.cargo/registry
          ~/.cargo/git
        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
    - name: Get rustc commit hash
      id: cargo-target-cache
      run: |
        echo "rust_hash=$(rustc -Vv | grep commit-hash | awk '{print $2}')" >> $GITHUB_OUTPUT
      shell: bash
    - name: Cache cargo build
      id: do-cache-target
      uses: actions/cache@v4
      with:
        path: target
        key: ${{ matrix.target }}-cargo-target-dir-${{ steps.cargo-target-cache.outputs.rust_hash }}-${{ hashFiles('**/Cargo.lock') }}

    - name: cargo build
      run: cargo build

    - name: cargo test
      run: cargo build

    - name: Clear the cargo caches
      if: ${{ ! steps.do-cache-cargo.outputs.cache-hit }}
      run: |
        cargo install cargo-cache --no-default-features --features ci-autoclean
        cargo-cache