build-mac.yml

name: "Build and Test pyEXP on Mac"

on:
  push:
    branches:
      - '*'
  pull_request:
    branches:
      - main
      - devel
jobs:
  exp:
    strategy:
      matrix:
        os: [macos-latest]

    name: "Test pyEXP Build on Mac"
    runs-on: ${{ matrix.os }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Install EXP dependencies (Mac)
        run: |
          brew install eigen fftw open-mpi hdf5 libomp

          echo CC=mpicc >> $GITHUB_ENV
          echo CXX=mpicxx >> $GITHUB_ENV
          echo OMPI_CC="clang" >> $GITHUB_ENV
          echo OMPI_CXX="clang++" >> $GITHUB_ENV

          echo OMP_HOME=${HOMEBREW_PATH}/opt/libomp/ >> $GITHUB_ENV
          echo LDFLAGS="-L${OMP_HOME}/lib" >> $GITHUB_ENV
          echo CPPFLAGS="-I${OMP_HOME}/include" >> $GITHUB_ENV

      - name: Build EXP
        run: |
          # Get Python version info
          PYTHON_VERSION=$(python -c "import sys; print(f'{sys.version_info.major}.{sys.version_info.minor}')")
          PYTHON_EXEC=$(which python)
          PYTHON_LIBRARY_PATH=$(python -c "import sysconfig; print(sysconfig.get_config_var('LIBDIR'))")

          # Set Python library path based on OS
          if [[ "$RUNNER_OS" == "macOS" ]]; then
            PYTHON_LIBRARY=${PYTHON_LIBRARY_PATH}/libpython${PYTHON_VERSION}.dylib
          else
            PYTHON_LIBRARY=${PYTHON_LIBRARY_PATH}/libpython${PYTHON_VERSION}.so
          fi

          cmake -G Ninja -B build \
            -DCMAKE_INSTALL_RPATH=$PWD/install/lib \
            --install-prefix $PWD/install \
            -DENABLE_NBODY=YES \
            -DENABLE_PYEXP=YES \
            -DDISABLE_OPENMP_COMPILE_FLAGS=YES \
            -DPYTHON_EXECUTABLE=${PYTHON_EXEC} \
            -DPYTHON_LIBRARY=${PYTHON_LIBRARY} \
            -DOpenMP_CXX_INCLUDE_DIR=${OMP_HOME}/include \
            -DOpenMP_C_INCLUDE_DIR=${OMP_HOME}/include

          # Build and install EXP
          cmake --build build
          cmake --install build

          # Add the pyEXP dir as a pyEXP.pth file in Python site-packages:
          SITE_PACKAGES=$(python -c "import site; print(site.getsitepackages()[0])")
          echo "$PWD/install/lib/python${PYTHON_VERSION}/site-packages" > "${SITE_PACKAGES}/pyEXP.pth"

      - name: CTest Quick
        run: ctest --output-on-failure -L quick

      - name: Test pyEXP
        run: |
          python -c "import pyEXP; print('pyEXP successfully imported')"