cmake.yml

# Workflow to build Dawn using CMake
name: CMake

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

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  build:
    runs-on: ${{ matrix.os }}

    strategy:
      # Set fail-fast to false to ensure that feedback is delivered for all matrix combinations. Consider changing this to true when your workflow is stable.
      fail-fast: false

      matrix:
        os: [ubuntu-latest, windows-latest, macos-latest]
        build_type: [Debug, Release]
        c_compiler: [clang, cl]
        include:
          - os: windows-latest
            c_compiler: cl
            cpp_compiler: cl
          - os: ubuntu-latest
            c_compiler: clang
            cpp_compiler: clang++
          - os: macos-latest
            c_compiler: clang
            cpp_compiler: clang++
        exclude:
          - os: windows-latest
            c_compiler: clang
          - os: windows-latest
            c_compiler: cl
            build_type: Debug
          - os: ubuntu-latest
            c_compiler: cl
          - os: macos-latest
            c_compiler: cl

    steps:
    - uses: actions/checkout@v3

    - name: Set reusable strings
      # Turn repeated input strings (such as the build output directory) into step outputs. These step outputs can be used throughout the workflow file.
      id: strings
      shell: bash
      run: |
        echo "build-output-dir=${{ github.workspace }}/out/build" >> "$GITHUB_OUTPUT"
        echo "build-key=${{ runner.os }}-${{github.workflow}}-${{ matrix.build_type }}-${{ matrix.c_compiler }}" >> "$GITHUB_OUTPUT"

    # Only download workspace artifacts on pull requests. CI builds should start from a fresh state.
    - name: Download workspace artifacts
      uses: dawidd6/action-download-artifact@v2
      if: ${{ github.event_name == 'pull_request' }}
      with:
        workflow_conclusion: success
        name: workspace-${{ steps.strings.outputs.build-key }}
        search_artifacts: true
        path: ${{ steps.strings.outputs.build-output-dir }}
        if_no_artifact_found: warn
      continue-on-error: true

    - name: Install Ubuntu build dependencies
      if: matrix.os == 'ubuntu-latest'
      run: |
        sudo apt update
        sudo apt install libgl-dev libx11-xcb-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libxext-dev wayland-protocols libwayland-dev libxkbcommon-dev

    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: 3.11

    - name: Fetch dependencies
      run: python ./tools/fetch_dawn_dependencies.py --use-test-deps --shallow

    - name: Set up Ninja
      uses: seanmiddleditch/gha-setup-ninja@master

    - name: Set up Visual Studio environment
      if: matrix.os == 'windows-latest'
      uses: seanmiddleditch/gha-setup-vsdevenv@master

    - name: Set up sccache
      uses: mozilla-actions/sccache-action@v0.0.3

    - name: Configure CMake
      run: >
        cmake -G Ninja -B ${{ steps.strings.outputs.build-output-dir }}
        -DCMAKE_CXX_COMPILER=${{ matrix.cpp_compiler }}
        -DCMAKE_C_COMPILER=${{ matrix.c_compiler }}
        -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
        -DCMAKE_C_COMPILER_LAUNCHER=sccache
        -DCMAKE_CXX_COMPILER_LAUNCHER=sccache
        -S ${{ github.workspace }}
      env:
        SCCACHE_GHA_ENABLED: "true"

    - name: Build
      run: cmake --build ${{ steps.strings.outputs.build-output-dir }} --config ${{ matrix.build_type }}
      env:
        SCCACHE_GHA_ENABLED: "true"

    # Always upload workspace artifacts. Eventually only do this for pushes to main.
    - name: Upload workspace artifacts
      uses: actions/upload-artifact@v3
      with:
        name: workspace-${{ steps.strings.outputs.build-key }}
        path: ${{ steps.strings.outputs.build-output-dir }}
        retention-days: 7