tests-python.yml

name: Tests (Python)

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

  # Allow job to be triggered manually.
  workflow_dispatch:

# Cancel in-progress jobs when pushing to the same branch.
concurrency:
  cancel-in-progress: true
  group: ${{ github.workflow }}-${{ github.ref }}

jobs:
  tests:
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: true
      matrix:
        os: ["ubuntu-latest"]
        python-version: ["3.9", "3.10", "3.11", "3.12"]
        # In order to save resources, only run particular
        # matrix slots on other OS than Linux.
        include:
          - os: "macos-latest"
            python-version: "3.12"
          # TODO: Building on Windows fails because it fails to install pygrib; eccodes not found. Must use conda env.
          #- os: "windows-latest"
          #  python-version: "3.12"

    env:
      OS: ${{ matrix.os }}
      PYTHON: ${{ matrix.python-version }}

    defaults:
      run:
        shell: bash -el {0}

    name: Python ${{ matrix.python-version }} on OS ${{ matrix.os }}
    steps:
      - name: Acquire sources
        uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
          architecture: x64
          cache: "pip"
          cache-dependency-path: "setup.cfg"

      - name: Install prerequisites (Linux)
        if: runner.os == 'Linux'
        run: |
          sudo apt -y install libgeos-dev libeccodes-dev

      - name: Install prerequisites (macOS)
        if: runner.os == 'macOS'
        run: |
          brew install pkg-config geos eccodes

      - name: Install prerequisites (Windows)
        if: runner.os == 'windows'
        run: |
          echo "Does anything need to be installed?"

      - name: Install project (Linux)
        if: runner.os == 'Linux'
        run: |
          pip3 install --requirement=requirements-test.txt
          pip3 install --editable='.[extras]'

      - name: Install project (macOS)
        if: runner.os == 'macOS'
        run: |
          pip3 install --break-system-packages --requirement=requirements-test.txt
          pip3 install --break-system-packages --editable='.[extras]'

      - name: Install project (Windows)
        if: runner.os == 'Windows'
        run: |
          pip3 install --requirement=requirements-test.txt
          pip3 install --editable='.[extras]'

      - name: Run tests
        env:
          TMPDIR: ${{ runner.temp }}
        run: |
          pytest