name: Advisory checkpatch review
on: [pull_request]

jobs:
  review:
    name: checkpatch review
    runs-on: ubuntu-latest
    steps:
    - name: 'Calculate PR commits + 1'
      run: echo "PR_FETCH_DEPTH=$(( ${{ github.event.pull_request.commits }} + 1 ))" >> $GITHUB_ENV
    - uses: actions/checkout@v4
      with:
        ref: ${{ github.event.pull_request.head.sha }}
        fetch-depth: ${{ env.PR_FETCH_DEPTH }}
    - name: Copy checkpatch.conf
      run: cp ${{github.workspace}}/.github/workflows/ci_checkpatch.conf ${{github.workspace}}/.checkpatch.conf
    - name: Run checkpatch review
      uses: webispy/checkpatch-action@v9