integration_delivery.yml

name: CI/CD

on:
  push:
    branches:
      - main
    tags:
      - 'v*'
  pull_request:
  workflow_dispatch:

env:
  PYTHON_VERSION: '3.11.9'

jobs:
  dependencies:
    name: Install 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 }}

      - name: Install uv
        uses: astral-sh/setup-uv@v3
        with:
          enable-cache: true

      - name: Create virtualenv
        run: |
          uv venv --system-site-packages

      - name: Install dependencies
        run: uv sync --frozen

  type-check:
    name: Type Check
    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 }}

      - name: Install uv
        uses: astral-sh/setup-uv@v3
        with:
          enable-cache: true

      - name: Create virtualenv
        run: |
          uv venv --system-site-packages

      - name: Create stub files
        run: |
          uv run pyright --createstub kivy

      - name: Type Check
        run: |
          uv run --frozen 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 }}

      - name: Install uv
        uses: astral-sh/setup-uv@v3
        with:
          enable-cache: true

      - name: Lint
        run: uvx ruff check

  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 }}

      - name: Install uv
        uses: astral-sh/setup-uv@v3
        with:
          enable-cache: true

      - name: Extract Version
        id: extract-version
        run: |
          git fetch --prune --unshallow
          git fetch --depth=1 origin +refs/tags/*:refs/tags/*
          echo "VERSION=$(uvx hatch version)" >> "$GITHUB_OUTPUT"
          echo "VERSION=$(uvx hatch version)"
          echo "NAME=$(uvx hatch project metadata | jq -r .name)" >> "$GITHUB_OUTPUT"
          echo "NAME=$(uvx hatch project metadata | jq -r .name)"

      - name: Extract Version from CHANGELOG.md
        run: |
          FIRST_HEADER=$(sed -n '/## /s/## //p' CHANGELOG.md | head -n 1) 
          if [ "$FIRST_HEADER" == "Upcoming" ]; then
            # Check the version coming from extract-version starts with of x.y.z.devn
            if [[ "${{ steps.extract-version.outputs.VERSION }}" =~ ^[0-9]+\.[0-9]+\.[0-9]+\.dev[0-9]+ ]]; then
              VERSION_CHANGELOG="This is a development version."
            else
              echo "Error: First header in CHANGELOG.md is 'Upcoming' but the version in pyproject.toml is not a development version."
              exit 1
            fi
          else
            VERSION_CHANGELOG=$(echo $FIRST_HEADER | sed 's/Version //')
            if [ "${{ steps.extract-version.outputs.VERSION }}" =~ "^$VERSION_CHANGELOG\.dev[0-9]+" ]; then
              echo "Error: Version extracted from CHANGELOG.md does not match the version in pyproject.toml"
              exit 1 
            else
              echo "Versions are consistent."
            fi
          fi

      - name: Build
        run:
          SETUPTOOLS_SCM_PRETEND_VERSION=${{
          steps.extract-version.outputs.VERSION }} uv 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

  publish:
    name: Publish
    if: >-
      github.event_name == 'push' && (github.ref == 'refs/heads/main' ||
      startsWith(github.ref, 'refs/tags/v')) || github.event_name ==
      'pull_request' && github.event.pull_request.base.ref == 'main'
    needs:
      - type-check
      - lint
      - build
    runs-on: ubuntu-latest
    environment:
      name: pypi
      url:
        https://pypi.org/project/${{ needs.build.outputs.name }}/${{
        needs.build.outputs.version }}
    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 to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          packages-dir: dist

  release:
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
    name: Release
    needs:
      - type-check
      - lint
      - build
      - 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:
      - uses: actions/checkout@v4
        name: Checkout

      - 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

      - 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