downstream.yml

name: Poetry Downstream Tests

on:
  workflow_dispatch:
  pull_request: {}
  push:
    branches: [main]

jobs:
  tests:
    name: ${{ matrix.ref }}
    runs-on: ubuntu-latest
    strategy:
      matrix:
        ref: ["main"]
      fail-fast: false
    defaults:
      run:
        shell: bash
    steps:
      - uses: actions/checkout@v4
        with:
          path: poetry-core

      - uses: actions/checkout@v4
        with:
          path: poetry
          repository: python-poetry/poetry
          ref: ${{ matrix.ref }}

      - name: Set up Python 3.10
        uses: actions/setup-python@v5
        with:
          python-version: "3.10"

      - name: Get full python version
        id: full-python-version
        run: echo version=$(python -c "import sys; print('-'.join(str(v) for v in sys.version_info))") >> $GITHUB_OUTPUT

      - name: Set up Poetry
        run: |
          pip install poetry
          poetry config virtualenvs.in-project true

      - name: Set up cache
        uses: actions/cache@v4
        id: cache
        with:
          path: ./poetry/.venv
          key: venv-${{ steps.full-python-version.outputs.version }}-${{ hashFiles('**/poetry.lock') }}

      - name: Ensure cache is healthy
        if: steps.cache.outputs.cache-hit == 'true'
        working-directory: ./poetry
        run: timeout 10s poetry run pip --version >/dev/null 2>&1 || rm -rf .venv

      - name: Switch downstream to development poetry-core
        working-directory: ./poetry
        run: |
          # remove poetry-core from main group to avoid version conflicts
          # with a potential entry in the test group
          poetry remove poetry-core
          # add to test group to overwrite a potential entry in that group
          poetry add --lock --group test ../poetry-core

      - name: Install downstream dependencies
        working-directory: ./poetry
        run: |
          # force update of directory dependency in cached venv
          # (even if directory dependency with same version is already installed)
          poetry run pip uninstall -y poetry-core
          poetry install

      # TODO: mark run as success even when this fails and add comment to PR instead
      - name: Run downstream test suite
        working-directory: ./poetry
        run: poetry run pytest