integration_delivery.yml

name: CI/CD

on:
  push:
  pull_request:
  workflow_dispatch:

env:
  PYTHON_VERSION: '3.11'

jobs:
  dependencies:
    name: Install Dependencies
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        name: Checkout

      - name: Load Cached Poetry
        id: cached-poetry
        uses: actions/cache@v4
        with:
          path: |
            ~/.cache
            ~/.local
          key: poetry-${{ hashFiles('poetry.lock') }}-${{ env.PYTHON_VERSION}}

      - uses: actions/setup-python@v5
        name: Setup Python
        with:
          python-version: ${{ env.PYTHON_VERSION }}
          architecture: x64

      - name: Install Poetry
        uses: snok/install-poetry@v1
        with:
          virtualenvs-create: true

      - name: Install dependencies
        run: poetry install --extras=test --with dev

  type-check:
    name: Type Check
    needs:
      - dependencies
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        name: Checkout

      - uses: actions/setup-python@v5
        name: Setup Python
        with:
          python-version: ${{ env.PYTHON_VERSION }}
          architecture: x64

      - name: Load Cached Poetry
        id: cached-poetry
        uses: actions/cache/restore@v4
        with:
          path: |
            ~/.cache
            ~/.local
          key: poetry-${{ hashFiles('poetry.lock') }}-${{ env.PYTHON_VERSION}}

      - name: Create stub files
        run: poetry run pyright --createstub kivy

      - name: Type Check
        run: poetry run poe typecheck

  lint:
    name: Lint
    needs:
      - dependencies
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        name: Checkout

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_VERSION }}
          architecture: x64

      - name: Load Cached Poetry
        id: cached-poetry
        uses: actions/cache/restore@v4
        with:
          path: |
            ~/.cache
            ~/.local
          key: poetry-${{ hashFiles('poetry.lock') }}-${{ env.PYTHON_VERSION}}

      - name: Lint
        run: poetry run poe lint

  build:
    name: Build
    needs:
      - dependencies
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.extract-version.outputs.VERSION }}
      name: ${{ steps.extract-version.outputs.NAME }}
    steps:
      - uses: actions/checkout@v4
        name: Checkout

      - uses: actions/setup-python@v5
        name: Setup Python
        with:
          python-version: ${{ env.PYTHON_VERSION }}
          architecture: x64

      - name: Load Cached Poetry
        id: cached-poetry
        uses: actions/cache/restore@v4
        with:
          path: |
            ~/.cache
            ~/.local
          key: poetry-${{ hashFiles('poetry.lock') }}-${{ env.PYTHON_VERSION}}

      - name: Extract Version
        id: extract-version
        run: |
          echo "VERSION=$(poetry version --short)" >> "$GITHUB_OUTPUT"
          echo "VERSION=$(poetry version --short)"
          echo "NAME=$(poetry version | cut -d' ' -f1)" >> "$GITHUB_OUTPUT"
          echo "NAME=$(poetry version | cut -d' ' -f1)"

      - name: Extract Version from CHANGELOG.md
        run: |
          VERSION_CHANGELOG=$(sed -n '3 s/## Version //p' CHANGELOG.md) 
          echo "VERSION_CHANGELOG=$VERSION_CHANGELOG"
          if [ "${{ steps.extract-version.outputs.VERSION }}" != "$VERSION_CHANGELOG" ]; then
            echo "Error: Version extracted from CHANGELOG.md does not match the version in pyproject.toml"
            exit 1 
          else
            echo "Versions are consistent."
          fi

      - name: Extract Version from Tag
        if: startsWith(github.ref, 'refs/tags/v')
        run: |
          VERSION_TAG=$(sed 's/^v//' <<< ${{ github.ref_name }})
          echo "VERSION_TAG=$VERSION_TAG"
          if [ "${{ steps.extract-version.outputs.VERSION }}" != "$VERSION_TAG" ]; then
            echo "Error: Version extracted from tag does not match the version in pyproject.toml"
            exit 1 
          else
            echo "Versions are consistent."
          fi

      - name: Build
        run: poetry build

      - name: Upload wheel
        uses: actions/upload-artifact@v4
        with:
          name: wheel
          path: dist/*.whl
          if-no-files-found: error

      - name: Upload binary
        uses: actions/upload-artifact@v4
        with:
          name: binary
          path: dist/*.tar.gz
          if-no-files-found: error

  pypi-publish:
    name: Publish to PyPI
    if: >-
      github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
    needs:
      - type-check
      - lint
      - build
    runs-on: ubuntu-latest
    environment:
      name: pypi
      url: https://pypi.org/p/${{ needs.build.outputs.name }}
    permissions:
      id-token: write
    steps:
      - uses: actions/download-artifact@v4
        with:
          name: wheel
          path: dist

      - uses: actions/download-artifact@v4
        with:
          name: binary
          path: dist

      - name: Publish package distributions to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          packages-dir: dist
          verbose: true

  release:
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
    name: Release
    needs:
      - type-check
      - lint
      - build
      - pypi-publish
    runs-on: ubuntu-latest
    environment:
      name: release
      url:
        https://github.com/${{ github.repository }}/releases/tag/v${{
        needs.build.outputs.version }}
    permissions:
      contents: write
    steps:
      - name: Procure Wheel
        uses: actions/download-artifact@v4
        with:
          name: wheel
          path: artifacts

      - name: Procure Binary
        uses: actions/download-artifact@v4
        with:
          name: binary
          path: artifacts

      - uses: actions/checkout@v4
        name: Checkout

      - name: Extract Changelog
        id: changelog
        run: |
          perl -0777 -ne 'while (/## Version ${{ needs.build.outputs.version }}\n(\s*\n)*(.*?)(\s*\n)*## Version \d+\.\d+\.\d+\n/sg) {print "$2\n"}' CHANGELOG.md > CURRENT_CHANGELOG.md
          {
            echo "CONTENT<<EOF"
            cat CURRENT_CHANGELOG.md
            echo "EOF"
          } >> "$GITHUB_OUTPUT"

      - name: Release
        uses: softprops/action-gh-release@v2
        with:
          files: artifacts/*
          tag_name: v${{ needs.build.outputs.version }}
          body: |
            PyPI package: https://pypi.org/project/${{ needs.build.outputs.name }}/${{ needs.build.outputs.version }}

            # Changes:
            ${{ steps.changelog.outputs.CONTENT }}
          prerelease: false
          draft: false