name: Lint
on: [pull_request]

jobs:
  clang-tidy:
    runs-on: ubuntu-20.04
    steps:
    - uses: actions/checkout@v3
      with:
        fetch-depth: 2
    - name: Install clang-tidy
      run: |
        sudo apt-get update
        sudo apt-get install -y clang-tidy build-essential pkg-config libpng-dev libjpeg-dev libtiff-dev zlib1g-dev libssl-dev libx11-dev libgl1-mesa-dev libxrandr-dev libxxf86dga-dev libxcursor-dev libfreetype6-dev libvorbis-dev libeigen3-dev libopenal-dev libode-dev libbullet-dev libgtk-3-dev libassimp-dev libopenexr-dev
    - name: Prepare compile_commands.json
      run: |
        cmake -B build -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_UNITY_BUILD=OFF -DHAVE_PYTHON=OFF -DINTERROGATE_PYTHON_INTERFACE=OFF
    - name: Copy prebuilt files
      run: |
        for fn in **/*.prebuilt; do
          echo mkdir -p $(dirname "cmake/$fn");
          echo cp "$fn" "cmake/${fn%.*}";
        done
    - name: Create results directory
      run: |
        mkdir clang-tidy-result
    - name: Analyze
      run: |
        git diff -U0 HEAD^ | clang-tidy-diff -p1 -path build -export-fixes clang-tidy-result/fixes.yml
    - name: Save PR metadata
      run: |
        echo ${{ github.event.number }} > clang-tidy-result/pr-id.txt
        echo ${{ github.event.pull_request.head.repo.full_name }} > clang-tidy-result/pr-head-repo.txt
        echo ${{ github.event.pull_request.head.ref }} > clang-tidy-result/pr-head-ref.txt
    - name: Upload results
      uses: actions/upload-artifact@v2
      with:
        name: clang-tidy-result
        path: clang-tidy-result/