pr-code-format.yml

name: "Check code formatting"

permissions:
  contents: read

on:
  pull_request:
    branches:
      - master

jobs:
  code_formatter:
    runs-on: ubuntu-latest
    timeout-minutes: 10

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Install clang-format
        run: wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add - && sudo apt-get install -y clang-format-18

      - name: Run clang-format on changed files
        run: |
          # Get list of changed files
          CHANGED_FILES=$(git diff --name-only --diff-filter=ACM origin/master...HEAD | grep -E '^(runtime-light|runtime-common)/.*\.(cpp|h|inl)$')
          
          # Apply clang-format to each changed file
          echo "$CHANGED_FILES" | xargs -r clang-format-18 -style=file -i

      - name: Check for formatting changes
        run: |
          # Check if any files were modified by clang-format
          if [[ `git status --porcelain` ]]; then
            echo "Code is not formatted. Please run clang-format."
            git diff
            exit 1
          fi