macos.yml

name: 🍏 macOS

on: [push, pull_request]

concurrency:
  group: ${{ github.ref }}-${{ github.head_ref }}-macos
  cancel-in-progress: true

jobs:
  build_appleclang:
    name: AppleClang
    runs-on: macos-latest
    if: github.event.pull_request.draft == false
    env:
      CXXFLAGS: "-Werror -Wno-error=pass-failed"
      HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK: TRUE
      # For macOS, Ninja is slower than the default:
      #CMAKE_GENERATOR: Ninja
    steps:
    - uses: actions/checkout@v4
    - name: install dependencies
      run: |
        set +e
        brew unlink gcc
        brew update
        brew upgrade || true
        brew install --overwrite python
        brew install ccache
        brew install fftw
        brew install libomp
        brew link --overwrite --force libomp
        brew install ninja
        brew install open-mpi
        brew install pkg-config
        set -e
        brew tap openpmd/openpmd
        brew install openpmd-api

        python3 -m pip install --upgrade pip
        python3 -m pip install --upgrade virtualenv

        python3 -m venv py-venv
        source py-venv/bin/activate
        python3 -m pip install --upgrade pip
        python3 -m pip install --upgrade build packaging setuptools wheel
        python3 -m pip install --upgrade mpi4py
    - name: CCache Cache
      uses: actions/cache@v4
      with:
        path: /Users/runner/Library/Caches/ccache
        key: ccache-${{ github.workflow }}-${{ github.job }}-git-${{ github.sha }}
        restore-keys: |
             ccache-${{ github.workflow }}-${{ github.job }}-git-
    - name: build WarpX
      run: |
        export CCACHE_COMPRESS=1
        export CCACHE_COMPRESSLEVEL=10
        export CCACHE_MAXSIZE=100M
        export CCACHE_DEPEND=1
        ccache -z

        source py-venv/bin/activate

        cmake -S . -B build_dp         \
          -DCMAKE_VERBOSE_MAKEFILE=ON  \
          -DWarpX_EB=ON                \
          -DWarpX_OPENPMD=ON           \
          -DWarpX_openpmd_internal=OFF
        cmake --build build_dp -j 3

        cmake -S . -B build_sp         \
          -DCMAKE_VERBOSE_MAKEFILE=ON  \
          -DPython_EXECUTABLE=$(which python3) \
          -DWarpX_EB=ON                \
          -DWarpX_PYTHON=ON            \
          -DWarpX_OPENPMD=ON           \
          -DWarpX_openpmd_internal=OFF \
          -DWarpX_PRECISION=SINGLE
        cmake --build build_sp -j 3
        cmake --build build_sp --target pip_install

        ccache -s

    - name: run pywarpx
      run: |
        source py-venv/bin/activate
        export OMP_NUM_THREADS=1

        mpirun -n 2 Examples/Physics_applications/laser_acceleration/PICMI_inputs_3d.py

  save_pr_number:
    if: github.event_name == 'pull_request'
    runs-on: ubuntu-latest
    steps:
      - name: Save PR number
        env:
          PR_NUMBER: ${{ github.event.number }}
        run: |
          echo $PR_NUMBER > pr_number.txt
      - uses: actions/upload-artifact@v4
        with:
          name: pr_number
          path: pr_number.txt
          retention-days: 1