macos.yml

name: macOS build

on:
  pull_request:
    branches:
      - main
  push:
    branches:
      - "main"
    tags:
      - "v*"
  merge_group:
    branches:
      - main
  workflow_dispatch:

jobs:
  mac-os-build:
    name: macOS Homebrew install and test
    runs-on: macos-14
    env:
      PETSC_ARCH: arch-darwin-c-opt
      PETSC_DIR: ${{ github.workspace }}/petsc

    steps:
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      - name: Install Homebrew dependencies
        run: |
          brew install adios2 boost cmake hdf5-mpi make ninja open-mpi pkg-config pugixml spdlog # FEniCS
          brew install bison flex gfortran # PETSc

      - name: Install Python dependencies (petsc4py)
        run: |
          python -m pip install mpi4py numpy
          python -m pip install cython setuptools wheel

      - name: Install minimal PETSc and petsc4py
        run: |
          export PATH="$(brew --prefix gfortran)/bin:$(brew --prefix bison)/bin:$PATH"
          git clone -b release https://gitlab.com/petsc/petsc.git petsc
          cd petsc
          python ./configure \
            --with-64-bit-indices=no \
            --with-debugging=no \
            --with-fortran-bindings=no \
            --with-scalar-type=real \
            --with-shared-libraries \
            --with-scalar-type=real \
            --download-metis \
            --download-parmetis \
            --download-ptscotch \
            --download-scalapack \
            --download-mumps \
            --download-mumps-avoid-mpi-in-place
          make all
          cd src/binding/petsc4py
          arch -arm64 python -m pip -v install --no-build-isolation --no-cache-dir .

      - name: Install FEniCSx dependencies
        run: |
          python -m pip install git+https://github.com/FEniCS/basix.git
          python -m pip install git+https://github.com/FEniCS/ufl.git
          python -m pip install git+https://github.com/FEniCS/ffcx.git

      - uses: actions/checkout@v4
        with:
          path: dolfinx

      - name: Build and install DOLFINx C++ library
        working-directory: dolfinx
        run: |
          cmake -G Ninja -B build -S cpp/
          cmake --build build
          sudo cmake --install build

      - name: Build C++ unit tests
        working-directory: dolfinx
        run: |
          cmake -G Ninja -DCMAKE_BUILD_TYPE=Developer -B build/test/ -S cpp/test/
          cmake --build build/test --parallel 3

      - name: Run C++ unit tests (serial)
        working-directory: dolfinx
        run: |
          cd build/test
          ctest -V --output-on-failure -R unittests
      - name: Run C++ unit tests (MPI)
        working-directory: dolfinx
        run: |
          cd build/test
          mpiexec -np 3 ctest -V --output-on-failure -R unittests

      - name: Build and install DOLFINx Python interface
        working-directory: dolfinx
        run: |
          python -m pip install -r python/build-requirements.txt
          python -m pip install --check-build-dependencies --no-build-isolation 'python/[test]'

      - name: Basic test
        run: |
          python -c "import dolfinx; from mpi4py import MPI; dolfinx.mesh.create_rectangle(comm=MPI.COMM_WORLD, points=((0, 0), (2, 1)), n=(32, 16))"
          mpirun -np 2 python -c "import dolfinx; from mpi4py import MPI; dolfinx.mesh.create_rectangle(comm=MPI.COMM_WORLD, points=((0, 0), (2, 1)), n=(32, 16))"

      - name: Run Python unit tests (serial)
        working-directory: dolfinx
        run: |
          python -m pip install pytest-xdist
          python3 -m pytest -n=auto --durations=50 python/test/unit/
      - name: Run Python unit tests (MPI, np=3)
        working-directory: dolfinx
        run: |
          mpirun -np 3 python3 -m pytest python/test/unit/