format_test.yml

name: Code Format Check

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main, develop ]

jobs:
  format-check:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: '3.x'
        
    - name: Install Python formatters
      run: |
        python -m pip install --upgrade pip
        pip install black
        
    - name: Install clang-format
      run: |
        sudo apt-get update
        sudo apt-get install -y clang-format
        
    - name: Check clang-format version
      run: clang-format --version
      
    - name: Check Black version
      run: black --version
      
    - name: Check git status before formatting
      run: git status --porcelain
      
    - name: Run make format
      run: make format
      
    - name: Check for formatting changes
      id: format-check
      run: |
        if [ -n "$(git status --porcelain)" ]; then
          echo "changes=true" >> $GITHUB_OUTPUT
          echo "❌ Files were modified by 'make format'"
          echo ""
          echo "Modified files:"
          git status --porcelain
          echo ""
          echo "Diff:"
          git diff
        else
          echo "changes=false" >> $GITHUB_OUTPUT
          echo "✅ No formatting changes needed"
        fi
        
    - name: Display formatting instructions
      if: steps.format-check.outputs.changes == 'true'
      run: |
        echo "❌ Code formatting check failed!"
        echo ""
        echo "To fix all formatting issues, run:"
        echo ""
        echo "  make format"
        echo ""
        echo "Then commit and push your changes."
        
    - name: Fail if formatting issues found
      if: steps.format-check.outputs.changes == 'true'
      run: |
        echo "Code formatting issues detected. Please run 'make format' to fix them."
        exit 1