release-prepare.yml

name: 'prepare release'

on:
  push:
    tags:
      - '[0-9]+.[0-9]+.?[ab]?[0-9]+'
permissions:
  # allow a write access to GitHub Releases
  contents: write

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Set up JDK
        uses: actions/setup-java@v4
        with:
          java-version: 17
          distribution: 'temurin'
          cache: 'maven'

      - name: Install build dependencies
        run: pip install build

      - name: Build
        env:
          SETUPTOOLS_SCM_PRETEND_VERSION_FOR_jjava: ${{ github.ref_name }}
        run: |
          mvn clean verify -U
          python -m build

      - name: Collect the release distributions
        run: |
          mkdir -p release/
          cp jjava/target/jjava-${{ github.ref_name }}-kernelspec.zip release/
          cp -r dist/* release/

      - name: Store the release distributions
        uses: actions/upload-artifact@v4
        with:
          name: release-distributions
          path: release/
          if-no-files-found: error

  prepare-release:
    runs-on: ubuntu-latest
    needs:
      - build

    steps:
      - name: Download distributions
        uses: actions/download-artifact@v4
        with:
          name: release-distributions
          path: release/

      - name: Create release
        id: create_release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ github.ref_name }}
          body: JJava ${{ github.ref_name }} release
          draft: true
          prerelease: false
          files: release/*
          fail_on_unmatched_files: true