run-tests.yaml

on:
  push:
    branches:
      - master
  pull_request:

name: Run unit tests

jobs:
  build:
    name: ${{ matrix.config.name }}
    runs-on: ${{ matrix.config.os }}
    strategy:
      fail-fast: false
      matrix:
        config:
        - {
            name: "Ubuntu Latest GCC, coverage enabled", 
            os: ubuntu-latest,
            cov: true
          }
        - {
            name: "macOS Latest Clang", 
            os: macos-latest,
            cov: false
          }

    steps:
    - uses: actions/checkout@v4

    - name: Get latest CMake
      uses: lukka/get-cmake@latest

    - name: Install igraph on Mac
      if: ${{ matrix.config.os == 'macos-latest' }}
      run: |
        brew install igraph

    - name: Cache installed igraph
      id: cache-igraph
      if: ${{ matrix.config.os == 'ubuntu-latest' }}
      uses: actions/cache@v4
      with:
        path: _deps
        key: libigraph

    - name: Make and install igraph
      if: ${{ matrix.config.os == 'ubuntu-latest' && steps.cache-igraph.outputs.cache-hit != 'true' }}
      run: |
        version=0.10.13
        path=$(pwd)
        wget https://github.com/igraph/igraph/releases/download/${version}/igraph-${version}.tar.gz
        tar -xf igraph-${version}.tar.gz
        cd igraph-${version}
        mkdir build && cd build
        cmake .. -DCMAKE_INSTALL_PREFIX=${path}/_deps
        cmake --build .
        sudo cmake --install .

    - name: Configure the build
      if: ${{ matrix.config.cov == false }}
      run: cmake -S . -B build

    - name: Configure the build with coverage
      if: ${{ matrix.config.cov == true }}
      run: cmake -S . -B build -DCODE_COVERAGE=ON -DCMAKE_PREFIX_PATH=_deps

    - name: Run the build
      run: cmake --build build

    - name: Run the tests
      run: |
        cd build
        ctest

    - name: Generate code coverage
      if: ${{ matrix.config.cov == true }}
      run: |
        cd build/tests/CMakeFiles/libtest.dir/src/
        gcov -abcfu *.gcno

    - name: Upload to Codecov
      if: ${{ matrix.config.cov == true }}
      uses: codecov/codecov-action@v4
      with:
        directory: build/tests/CMakeFiles/libtest.dir/src/
      env:
        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}