version-check.yml

name: Check for version bump
on:
  pull_request:
    types:
      - opened
      - synchronize
      - reopened
      - labeled
      - unlabeled
jobs:
  check:
    if: ${{ !contains(github.event.pull_request.labels.*.name, 'skip-release') }}
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.10"

      - name: Install Poetry
        uses: snok/install-poetry@v1

      - name: Install Curl
        run: sudo apt install curl

      - name: Get package version
        run: echo "PACKAGE_VERSION=$(poetry version | awk '{print $2}')" >> $GITHUB_ENV

      - name: Check for existing PyPI version
        run: curl -I --silent --fail -o /dev/null https://pypi.org/project/zarr-checksum/$PACKAGE_VERSION/ && exit 1 || exit 0

      - name: Error if version found
        if: ${{ failure() }}
        run: |
          echo "Current package version ($PACKAGE_VERSION) already exists. Please either bump the \
          package version, or add the \"skip-release\" label to the pull request." \
          && exit 1