e2e.yml

name: E2E Test

on:
  pull_request:
    branches: [ main ]
  workflow_dispatch:
    inputs:
      target_repo:
        description: 'Target repository to test against'
        required: false
        default: 'llvm/llvm-project'
      style:
        description: 'Clang-format style'
        required: false
        default: 'file'

jobs:
  e2e-test:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        clang_version: [16, 17, 18, 19, 20]

    name: Test clang ${{ matrix.clang_version }}
    steps:
      - name: Checkout workflow repo
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.13'

      - name: Install Python dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install pre-commit

      - name: Clone target repository
        run: |
          git clone --depth=1 https://github.com/${{ github.event.inputs.target_repo || 'llvm/llvm-project' }}.git test-repo

      - name: Generate .pre-commit-config.yaml
        run: |
          cd test-repo
          rm -f .pre-commit-config.yaml
          cat > .pre-commit-config.yaml << EOF
          repos:
            - repo: https://github.com/cpp-linter/cpp-linter-hooks
              rev: main
              hooks:
                - id: clang-format
                  args: [
                    --style=${{ github.event.inputs.style || 'file' }},
                    --version=${{ matrix.clang_version }}
                  ]
          EOF

      - name: Install and run cpp-linter-hooks
        run: |
          cd test-repo
          pre-commit install
          # Run clang-format in smaller chunks
          for dir in $(find . -type d -name '*'); do
            pre-commit run --files $(find "$dir" -name '*.cpp' -o -name '*.h' | head -n 1000)
          done