checks.yml

name: Checks
on:
  push:
    branches: [main]
    tags: ['*']
  pull_request:
    branches: [main]

env:
  PYTEST_ADDOPTS: --color=yes
  PIP_PROGRESS_BAR: "off"

defaults:
  run:
    # -l: login shell, needed when using Conda:
    shell: bash -l {0}

jobs:

  code-formatting:
    name: Check code is formatted (Black)
    # OS and/or Python version don't make a difference, so we choose ubuntu and 3.12 as defaults
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: '3.12'
      - name: Install Black
        # unlike the other jobs, we don't need to install WaterTAP and/or all the dev dependencies,
        # but we still want to specify the Black version to use in requirements-dev.txt for local development
        # so we extract the relevant line and pass it to a simple `pip install`
        run: |
          black_requirement="$(grep '^black==' requirements-dev.txt)"
          pip install "$black_requirement"
      - name: Run Black to verify that the committed code is formatted
        run: |
          black --check .

  pytest:
    name: pytest (${{ matrix.os }}/${{ matrix.python-version }}/${{ matrix.install-mode }})
    runs-on: ${{ matrix.os-version }}
    needs: [code-formatting]
    strategy:
      fail-fast: false
      matrix:
        install-mode:
          - dev
          - standard
        python-version:
          - "3.8"
          - "3.9"
          - "3.10"
          - "3.11"
        os:
          - linux
          - win64
        include:
          - os: linux
            os-version: ubuntu-22.04
          - os: win64
            os-version: windows-2022
          - install-mode: dev
            python-version: "3.11"  # choice of Python version is arbitrary among those in matrix
            coverage: "true"
          - install-mode: dev
            python-version: "3.10"
            mpi: "true"

    steps:
      - if: matrix.install-mode == 'dev'
        uses: actions/checkout@v4
      - uses: conda-incubator/setup-miniconda@v3
        with:
          auto-update-conda: true
          python-version: ${{ matrix.python-version }}
          activate-environment: ${{ matrix.install-mode == 'dev' && 'parameter-sweep-dev' || 'parameter-sweep' }}
      - if: matrix.install-mode == 'dev'
        name: Install (dev)
        run: |
          pip install -r requirements-dev.txt
      - if: matrix.install-mode == 'standard'
        name: Install (standard)
        run: |
          pip install "git+${{ format('{0}/{1}@{2}', github.server_url, github.repository, github.ref) }}"
      - name: Set up IDAES solvers
        run: |
          idaes get-extensions --verbose
      - if: matrix.coverage
        name: Enable coverage for pytest
        run: echo PYTEST_ADDOPTS="$PYTEST_ADDOPTS --cov --cov-report=xml" >> $GITHUB_ENV
      - name: Run pytest
        run: |
          pip install pytest  # ensure pytest is installed (should do nothing if already present from requirements-dev.txt)
          pytest --pyargs parameter_sweep
      - name: Upload coverage report as job artifact
        if: matrix.coverage
        uses: actions/upload-artifact@v4
        with:
          name: coverage-report-${{ matrix.os }}
          path: coverage.xml
          if-no-files-found: error
      - if: matrix.mpi
        name: Collect coverage for MPI-using code
        run: |
          conda install --quiet --yes mpi4py
          mpiexec -n 2 \
          coverage run --parallel-mode \
          -m mpi4py -m pytest \
          src/parameter_sweep/tests/test*parameter_sweep.py \
          src/parameter_sweep/loop_tool/tests/test*loop_tool.py \
          --no-cov
          # merge into single report
          coverage combine
          # convert to XML
          coverage xml
      - name: Upload coverage report as job artifact
        if: matrix.mpi
        uses: actions/upload-artifact@v4
        with:
          name: coverage-report-mpi-${{ matrix.os }}
          path: coverage.xml
          if-no-files-found: error

  upload-coverage:
    name: Upload coverage report (Codecov)
    needs: [pytest]
    runs-on: ubuntu-latest
    steps:
      # the checkout step is needed to have access to codecov.yml
      - uses: actions/checkout@v4
      - uses: actions/download-artifact@v4
        with:
          pattern: coverage-report-*
      - name: Upload coverage report to Codecov (token)
        uses: codecov/codecov-action@v4
        with:
          fail_ci_if_error: true
          verbose: true
          token: ${{ secrets.CODECOV_TOKEN }}
          # downgrading after v0.7.0 broke tokenless upload
          # see codecov/codecov-action#1487
          version: v0.6.0

  build-docs:
    name: Build docs (Sphinx)
    needs: [code-formatting]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: '3.10'
      - run: pip install -r requirements-dev.txt
      - run: make -C docs html