ci.yaml

name: CI

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

jobs:
  build-and-test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        compiler: [g++, clang++]
    steps:
    - uses: actions/checkout@v4
    - name: Configure
      run: cmake -B build -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_COMPILER=${{ matrix.compiler }}
    - name: Build
      run: cmake --build build --config Debug
    - name: Test
      run: cd build && ctest --output-on-failure

  benchmark-and-plot:
    needs: build-and-test
    runs-on: ubuntu-latest
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    steps:
    - uses: actions/checkout@v4
      with:
        token: ${{ secrets.GITHUB_TOKEN }}
        fetch-depth: 0
    
    - name: Setup Python
      uses: actions/setup-python@v5
      with:
        python-version: '3.10'
    
    - name: Install Python dependencies
      run: pip install matplotlib numpy
    
    - name: Configure and build benchmarks
      run: |
        cmake -B build -DCMAKE_BUILD_TYPE=Release
        cmake --build build --target cpp-reference-benchmark_benchmarks
    
    - name: Run benchmarks and capture output
      run: |
        ./build/benchmarks/cpp-reference-benchmark_benchmarks --benchmark_format=console > benchmark_output.txt 2>&1
    
    - name: Generate plot
      run: python scripts/plot_benchmarks.py benchmark_output.txt
    
    - name: Commit and push benchmark chart
      run: |
        git config user.name "github-actions[bot]"
        git config user.email "github-actions[bot]@users.noreply.github.com"
        git add benchmark_chart.png
        git diff --staged --quiet || git commit -m "Update benchmark chart [skip ci]"
        git push