build-mac.yml

name: Install and test Firedrake (macOS)

on:
  push:
    branches:
      - master
  pull_request:
    # By default this workflow is run on the "opened", "synchronize" and
    # "reopened" events. We add "labelled" so it will run if the PR is given a label.
    types: [opened, synchronize, reopened, labeled]

concurrency:
  # Cancels jobs running if new commits are pushed
  group: >
    ${{ github.workflow }}-
    ${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: Build Firedrake (macOS)
    runs-on: [self-hosted, macOS]
    # Only run this action if we are pushing to master or the PR is labelled "macOS"
    if: ${{ (github.ref == 'refs/heads/master') || contains(github.event.pull_request.labels.*.name, 'macOS') }}
    env:
      FIREDRAKE_CI_TESTS: 1  # needed to symlink the checked out branch into the venv
      OMP_NUM_THREADS: 1
      OPENBLAS_NUM_THREADS: 1
    steps:
      - name: Add homebrew to PATH
        # https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/workflow-commands-for-github-actions#adding-a-system-path
        run: echo "/opt/homebrew/bin" >> "$GITHUB_PATH"
      - uses: actions/checkout@v4
      - name: Pre-run cleanup
        if: ${{ always() }}
        run: |
          cd ..
          rm -rf firedrake_venv
      - name: Install Python
        run: brew install python python-setuptools
      - name: Build Firedrake
        run: |
          cd ..
          "$(brew --prefix)/bin/python3" \
            firedrake/scripts/firedrake-install \
            --venv-name firedrake_venv \
            --disable-ssh \
            || (cat firedrake-install.log && /bin/false)
      - name: Run smoke tests
        run: |
          . ../firedrake_venv/bin/activate
          python -m pytest -v tests/firedrake/regression/ -k "poisson_strong or stokes_mini or dg_advection"
          # also test for 'problem libraries' (spatialindex and libsupermesh)
          python -m pytest -v tests/firedrake/regression/test_locate_cell.py
          python -m pytest -v tests/firedrake/supermesh/test_assemble_mixed_mass_matrix.py
        timeout-minutes: 30
      - name: Post-run cleanup
        if: ${{ always() }}
        run: |
          cd ..
          rm -rf firedrake_venv