python-package.yml

name: CI/CD

on:
  push:
    branches: ["master"]
  pull_request:
    branches: ["master"]
  release:
    types: [created]
    branches:
      - 'master'
  workflow_dispatch:

env:
  FORCE_COLOR: "1"  # Make tools pretty.
  PIP_DISABLE_PIP_VERSION_CHECK: "1"
  PIP_NO_PYTHON_VERSION_WARNING: "1"
  PYTHON_LATEST: "3.12"
  KAFKA_LATEST: "2.6.0"

  # For re-actors/checkout-python-sdist
  sdist-artifact: python-package-distributions

jobs:

  build-sdist:
    name: 📦 Build the source distribution
    runs-on: ubuntu-latest
    steps:
      - name: Checkout project
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_LATEST }}
          cache: pip
      - run: python -m pip install build
        name: Install core libraries for build and install
      - name: Build artifacts
        run: python -m build
      - name: Upload built artifacts for testing
        uses: actions/upload-artifact@v4
        with:
          name: ${{ env.sdist-artifact }}
          # NOTE: Exact expected file names are specified here
          # NOTE: as a safety measure — if anything weird ends
          # NOTE: up being in this dir or not all dists will be
          # NOTE: produced, this will fail the workflow.
          path: dist/${{ env.sdist-name }}
          retention-days: 15

  test-python:
    name: Tests on ${{ matrix.python-version }}
    needs:
      - build-sdist
    runs-on: ubuntu-latest
    continue-on-error: ${{ matrix.experimental }}
    strategy:
      fail-fast: false
      matrix:
        python-version:
          - "3.8"
          - "3.9"
          - "3.10"
          - "3.11"
          - "3.12"
          - "pypy3.9"
        experimental: [ false ]
    steps:
      - name: Checkout the source code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Setup java
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: 11
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
          cache: pip
          cache-dependency-path: |
            requirements-dev.txt
      - name: Check Java installation
        run: source travis_java_install.sh
      - name: Pull Kafka releases
        run: ./build_integration.sh
        env:
          PLATFORM: ${{ matrix.platform }}
          KAFKA_VERSION: ${{ env.KAFKA_LATEST }}
        # TODO: Cache releases to expedite testing
      - name: Install dependencies
        run: |
          sudo apt install -y libsnappy-dev libzstd-dev
          python -m pip install --upgrade pip
          python -m pip install tox tox-gh-actions
          pip install .
          pip install -r requirements-dev.txt
      - name: Test with tox
        run: tox
        env:
          PLATFORM: ${{ matrix.platform }}
          KAFKA_VERSION: ${{ env.KAFKA_LATEST }}

  test-kafka:
    name: Tests for Kafka ${{ matrix.kafka-version }} (Python ${{ matrix.python-version }})
    needs:
      - build-sdist
    runs-on: ubuntu-latest
    timeout-minutes: 15
    strategy:
      fail-fast: false
      matrix:
        kafka-version:
          - "0.9.0.1"
          - "0.10.2.2"
          - "0.11.0.2"
          - "0.11.0.3"
          - "1.1.1"
          - "2.4.0"
          - "2.5.0"
          - "2.6.0"
        python-version: ['3.12']
        experimental: [false]
        include:
          - kafka-version: '0.8.2.2'
            experimental: true
            python-version: "3.12"
          - kafka-version: '0.8.2.2'
            experimental: false
            python-version: "3.10"
    env:
      PYTHON_LATEST: ${{ matrix.python-version }}
    continue-on-error: ${{ matrix.experimental }}
    steps:
      - name: Checkout the source code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Setup java
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: 8
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
          cache: pip
          cache-dependency-path: |
            requirements-dev.txt
      - name: Pull Kafka releases
        run: ./build_integration.sh
        env:
          # This is fast enough as long as you pull only one release at a time,
          # no need to worry about caching
          PLATFORM: ${{ matrix.platform }}
          KAFKA_VERSION: ${{ matrix.kafka-version }}
      - name: Install dependencies
        run: |
          sudo apt install -y libsnappy-dev libzstd-dev
          python -m pip install --upgrade pip
          python -m pip install tox tox-gh-actions
          pip install .
          pip install -r requirements-dev.txt
      - name: Test with tox
        run: tox
        env:
          PLATFORM: ${{ matrix.platform }}
          KAFKA_VERSION: ${{ matrix.kafka-version }}

  check:  # This job does nothing and is only used for the branch protection
    name: ✅ Ensure the required checks passing
    if: always()
    needs:
      - build-sdist
      - test-python
      - test-kafka
    runs-on: ubuntu-latest
    steps:
    - name: Decide whether the needed jobs succeeded or failed
      uses: re-actors/alls-green@release/v1
      with:
        jobs: ${{ toJSON(needs) }}
  publish:
    name: 📦 Publish to PyPI
    runs-on: ubuntu-latest
    needs: [build-sdist]
    permissions:
      id-token: write
    environment: pypi
    if: github.event_name == 'release' && github.event.action == 'created'
    steps:
      - name: Download the artifacts
        uses: actions/download-artifact@v4
        with:
          name: ${{ env.sdist-artifact }}
          path: dist/${{ env.sdist-name }}
      - name: Publish package to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          password: ${{ secrets.PYPI_API_TOKEN }}