libMobility/.github/workflows/format.yml at main · stochasticHydroTools/libMobility · GitHub

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name: Clang-Format Lint Check

on:
  pull_request_target:
    types: [opened, synchronize, reopened]

jobs:
  clang-format-check:
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.sha }}

      - name: Install clang-format
        run: sudo apt-get update && sudo apt-get install -y clang-format-19

      - name: Find unformatted files
        id: format_check
        run: |
          FILE_LIST="unformatted_files.txt"
          find solvers include ! -path 'src/third_party/*' \
            -regex '.*\.\(cpp\|hpp\|h\|c\|cc\|cu\|cuh\)' \
            -exec bash -c 'clang-format-19 -style=file -output-replacements-xml "$0" | grep -q "<replacement " && echo "$0"' {} \; > "$FILE_LIST"

          cat "$FILE_LIST"

          if [ -s "$FILE_LIST" ]; then
            echo "failed=true" >> $GITHUB_ENV
            {
              echo 'files<<EOF'
              cat "$FILE_LIST"
              echo 'EOF'
            } >> "$GITHUB_OUTPUT"
          else
            echo "failed=false" >> $GITHUB_ENV
            echo 'files=' >> "$GITHUB_OUTPUT"
          fi

      - name: Find existing clang-format comment
        id: find_comment
        uses: peter-evans/find-comment@v4
        with:
          issue-number: ${{ github.event.pull_request.number }}
          comment-author: 'github-actions[bot]'
          body-includes: '<!-- clang-format-check -->'

      - name: Create or update PR comment - failed
        if: env.failed == 'true'
        uses: peter-evans/create-or-update-comment@v5
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          issue-number: ${{ github.event.pull_request.number }}
          comment-id: ${{ steps.find_comment.outputs.comment-id }}
          edit-mode: replace
          body: |
            <!-- clang-format-check -->
            ⚠️ **Clang-format check failed**

            The following files are not correctly formatted:

            ```
            ${{ steps.format_check.outputs.files }}
            ```

            Please run:
            ```bash
            clang-format -i <file(s)>
            ```
            And commit the changes before merging.

      - name: Create or update PR comment - success
        if: env.failed == 'false'
        uses: peter-evans/create-or-update-comment@v5
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          issue-number: ${{ github.event.pull_request.number }}
          comment-id: ${{ steps.find_comment.outputs.comment-id }}
          edit-mode: replace
          body: |
            <!-- clang-format-check -->
            ✅ **Linter reported no issues**

            All C/C++ files are correctly formatted with **clang-format**.

      - name: Fail job if formatting issues found
        if: env.failed == 'true'
        run: |
          echo "❌ Formatting issues detected. Failing the job."
          exit 1