cicd.yaml

name: Run Tests

on: [pull_request]

env: 
  POETRY_VERSION: "1.6.1"

permissions:
  contents: write
  pull-requests: write

jobs:
  test-clang-format:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          submodules: 'recursive'
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Install clang-format and make
        run: |
          set -ex
          sudo apt-get update
          sudo apt-get install -y clang-format make
          clang-format --version

      - name: Run clang-format
        run: |
          make format-cpp

          # Check if there are any changes after formatting
          if ! git diff --quiet; then
            echo "Formatting changes detected. Committing and pushing the changes."
            
            # Set up git user for commit
            git config user.name "GitHub Action Bot"
            git config user.email "bot@users.noreply.github.com"

            # Add and commit the changes
            git add .
            git commit -m "chore: auto-format C++ code via clang-format"
            
            # Fetch the latest changes from the remote
            git fetch origin

            # Merge the latest changes from the remote branch
            if ! git merge origin/${{ github.head_ref || github.ref_name }} --no-edit; then
              echo "Merge conflict detected. Please resolve conflicts manually."

              # TODO: Figure out how to auto-resolve merge conflicts and then set the exit code to 1.
              # For now we will just let it pass as success.
              exit 0
            fi

            # Push the changes (force-with-lease to avoid overwriting unrelated changes)
            git push --force-with-lease origin HEAD:${{ github.head_ref || github.ref_name }}
          else
            echo "No formatting changes needed."
          fi


  run-cpp-unit-tests:
    needs: test-clang-format
    strategy:
      # Ensure that failure for one test does not cancel other actions
      fail-fast: false
      matrix:
        # TODO: Add macos-latest here. 
        # Currently it's failing as can be seen here: 
        # Ref: https://github.com/BlaiseMuhirwa/flatnav/actions/runs/12161129183/job/33915004519?pr=72
        os: [ubuntu-latest] 
    runs-on: ${{ matrix.os }}
    steps:
    - name: Checkout Repository
      uses: actions/checkout@v3
      with:
        submodules: 'recursive'

    - name: Install dependencies
      run: |
        # Install CMake, Clang and LibOMP
        make setup-clang-cmake-libomp
        
    - name: Build and Run C++ Unit Tests
      run: |
        set -ex
        make run-cpp-unit-tests