name: "Check code formatting"
on: pull_request_target
permissions:
  pull-requests: write

jobs:
  code_formatter:
    runs-on: ubuntu-latest
    steps:
      - name: Fetch LLVM sources
        uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Get changed files
        id: changed-files
        uses: tj-actions/changed-files@v39
        with:
          separator: ","
          fetch_depth: 100 # Fetches only the last 10 commits

      - name: "Listed files"
        run: |
          echo "Formatting files:"
          echo "${{ steps.changed-files.outputs.all_changed_files }}"

      - name: Install clang-format
        uses: aminya/setup-cpp@v1
        with:
          clangformat: 17.0.1

      - name: Setup Python env
        uses: actions/setup-python@v4
        with:
          python-version: '3.11'
          cache: 'pip'
          cache-dependency-path: 'llvm/utils/git/requirements_formatting.txt'

      - name: Install python dependencies
        run: pip install -r llvm/utils/git/requirements_formatting.txt

      - name: Run code formatter
        env:
          GITHUB_PR_NUMBER: ${{ github.event.pull_request.number }}
          START_REV: ${{ github.event.pull_request.base.sha }}
          END_REV: ${{ github.event.pull_request.head.sha }}
          CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
        run: |
          python llvm/utils/git/code-format-helper.py \
            --token ${{ secrets.GITHUB_TOKEN }} \
            --issue-number $GITHUB_PR_NUMBER \
            --start-rev $START_REV \
            --end-rev $END_REV \
            --changed-files "$CHANGED_FILES"