on-push.yml

name: on-push

on:
  push:
    branches:
    - main
    tags:
    - '*'
  pull_request:
    branches:
    - main

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

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

jobs:
  pre-commit:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - uses: actions/setup-python@v4
      with:
        python-version: 3.x
    - uses: pre-commit/action@v3.0.0

  combine-environments:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
    - name: Install conda-merge
      run: |
        $CONDA/bin/python -m pip install conda-merge
    - name: Combine environments
      run: |
        for SUFFIX in ci integration; do
        $CONDA/bin/conda-merge ci/environment-$SUFFIX.yml environment.yml > ci/combined-environment-$SUFFIX.yml || exit
        done
    - name: Archive combined environments
      uses: actions/upload-artifact@v3
      with:
        name: combined-environments
        path: ci/combined-environment-*.yml

  unit-tests:
    name: unit-tests
    needs: combine-environments
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: ['3.10', '3.11']

    steps:
    - uses: actions/checkout@v4
    - name: Download combined environments
      uses: actions/download-artifact@v3
      with:
        name: combined-environments
        path: ci
    - name: Install Conda environment with Micromamba
      uses: mamba-org/setup-micromamba@v1
      with:
        environment-file: ci/combined-environment-ci.yml
        environment-name: DEVELOP
        cache-environment: true
        create-args: >-
          python=${{ matrix.python-version }}
    - name: Install package
      run: |
        python -m pip install --no-deps -e .
    - name: Run tests
      run: |
        make unit-tests COV_REPORT=xml

  type-check:
    needs: [combine-environments, unit-tests]
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
    - name: Download combined environments
      uses: actions/download-artifact@v3
      with:
        name: combined-environments
        path: ci
    - name: Install Conda environment with Micromamba
      uses: mamba-org/setup-micromamba@v1
      with:
        environment-file: ci/combined-environment-ci.yml
        environment-name: DEVELOP
        cache-environment: true
        create-args: >-
          python=3.10
    - name: Install package
      run: |
        python -m pip install --no-deps -e .
    - name: Run code quality checks
      run: |
        make type-check

  docs-build:
    needs: [combine-environments, unit-tests]
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
    - name: Download combined environments
      uses: actions/download-artifact@v3
      with:
        name: combined-environments
        path: ci
    - name: Install Conda environment with Micromamba
      uses: mamba-org/setup-micromamba@v1
      with:
        environment-file: ci/combined-environment-ci.yml
        environment-name: DEVELOP
        cache-environment: true
        create-args: >-
          python=3.10
    - name: Install package
      run: |
        python -m pip install --no-deps -e .
    - name: Build documentation
      run: |
        make docs-build

  integration-tests:
    needs: [combine-environments, unit-tests]
    if: |
      success() && true
    runs-on: ubuntu-latest

    strategy:
      matrix:
        include:
        - python-version: '3.10'
          extra: -integration

    steps:
    - uses: actions/checkout@v4
    - name: Download combined environments
      uses: actions/download-artifact@v3
      with:
        name: combined-environments
        path: ci
    - name: Install Conda environment with Micromamba
      uses: mamba-org/setup-micromamba@v1
      with:
        environment-file: ci/combined-environment${{ matrix.extra }}.yml
        environment-name: DEVELOP${{ matrix.extra }}
        cache-environment: true
        create-args: >-
          python=${{ matrix.python-version }}
    - name: Install package
      run: |
        python -m pip install --no-deps -e .
    - name: Run tests
      run: |
        make unit-tests COV_REPORT=xml

  distribution:
    runs-on: ubuntu-latest
    needs: [unit-tests, type-check, docs-build, integration-tests]
    if: |
      always() &&
      needs.unit-tests.result == 'success' &&
      needs.type-check.result == 'success' &&
      needs.docs-build.result == 'success' &&
      (needs.integration-tests.result == 'success' || needs.integration-tests.result == 'skipped')

    steps:
    - uses: actions/checkout@v4
    - name: Install packages
      run: |
        $CONDA/bin/python -m pip install build twine
    - name: Build distributions
      run: |
        $CONDA/bin/python -m build
    - name: Check wheels
      run: |
        cd dist || exit
        $CONDA/bin/python -m pip install xarray_ecmwf*.whl || exit
        $CONDA/bin/python -m twine check * || exit
        $CONDA/bin/python -c "import xarray_ecmwf"
    - name: Publish a Python distribution to PyPI
      if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
      uses: pypa/gh-action-pypi-publish@release/v1
      with:
        user: __token__
        password: ${{ secrets.PYPI_API_TOKEN }}