release.yaml

# This action assumes that there is a REL-commit which already has a
# Markdown-formatted git tag. Hence the CHANGELOG is already adjusted
# and it's decided what should be in the release.
# This action only ensures the release is done with the proper contents
# and that it's announced with a Github release.
name: Publish Python Package to PyPI
on:
  push:
    branches:
      - main
permissions:
  contents: write

jobs:
  build_and_publish:
    name: Publish a new version of pypdf
    runs-on: ubuntu-latest
    if: "${{ startsWith(github.event.head_commit.message, 'REL: ') }}"

    steps:
      # Ensure it's on PyPI
      - name: Checkout Repository
        uses: actions/checkout@v4
      - name: Extract version from commit message
        id: extract_version
        run: |
          VERSION=$(echo "${{ github.event.head_commit.message }}" | grep -oP '(?<=REL: )\d+\.\d+\.\d+')
          echo "version=$VERSION" >> $GITHUB_OUTPUT

      - name: Extract tag message from commit message
        id: extract_message
        run: |
          VERSION="${{ steps.extract_version.outputs.version }}"
          delimiter="$(openssl rand -hex 8)"
          MESSAGE=$(echo "${{ github.event.head_commit.message }}" | sed "0,/REL: $VERSION/s///" )
          echo "message<<${delimiter}" >> $GITHUB_OUTPUT
          echo "$MESSAGE" >> $GITHUB_OUTPUT
          echo "${delimiter}" >> $GITHUB_OUTPUT

      - name: Create Git Tag
        run: |
          VERSION="${{ steps.extract_version.outputs.version }}"
          MESSAGE="${{ steps.extract_message.outputs.message }}"
          git config user.name github-actions
          git config user.email github-actions@github.com
          git tag "$VERSION" -m "$MESSAGE"
          git push origin $VERSION

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: 3.x

      - name: Install Flit
        run: |
          python -m pip install --upgrade pip
          pip install flit

      - name: Publish Package to PyPI🚀
        env:
          FLIT_USERNAME: '__token__'
          FLIT_PASSWORD: ${{ secrets.FLIT_PASSWORD }}
        run: |
          flit publish

      # Create the Github Page
      - name: Prepare variables
        id: prepare_variables
        run: |
          git fetch --tags --force
          latest_tag=$(git describe --tags --abbrev=0)
          echo "latest_tag=$(git describe --tags --abbrev=0)" >> "$GITHUB_ENV"
          echo "date=$(date +'%Y-%m-%d')" >> "$GITHUB_ENV"
          EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64)
          echo "tag_body<<$EOF" >> "$GITHUB_ENV"
          git --no-pager tag -l "${latest_tag}" --format='%(contents:body)' >> "$GITHUB_ENV"
          echo "$EOF" >> "$GITHUB_ENV"
      - name: Create GitHub Release 🚀
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ env.latest_tag }}
          name: Version ${{ env.latest_tag }}, ${{ env.date }}
          draft: false
          prerelease: false
          body: ${{ env.tag_body }}