version-release-and-publish.yml

on:
  workflow_dispatch:  # this is required to manually run workflows; it is terribly named
    inputs:
      new-version:
        description: The new version; e.g. '1.0.0'.
        required: true

name: Version, Release, and Publish

jobs:
  version:
    name: Increment Version
    runs-on: ubuntu-latest
    permissions:
      # Give the default GITHUB_TOKEN write permission to commit and push the added or changed files to the repository.
      contents: write
    steps:
      - name: Checkout latest
        uses: actions/checkout@v4
      - name: Update pyproject.toml version
        id: update-version
        run: |
          NEW_VERSION=${{ github.event.inputs.new-version }}
          OLD_VERSION=$(grep 'version\s\=\s\".*\"' pyproject.toml | grep -o '"[^"]\+"' | sed 's/\"//g')
          
          if [ "$NEW_VERSION" != "$OLD_VERSION" ]; then
            sed -i "s/^version\s*=.*/version = \"$NEW_VERSION\"/" pyproject.toml
            cat pyproject.toml
            # uhh https://github.com/marketplace/actions/checkout#Push-a-commit-using-the-built-in-token
            git config user.name "github-actions[bot]"
            git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
            git add .
            git commit -m "updated pyproject.toml version"
            git push
            echo "VERSION=$THIS_VERSION" >> $GITHUB_OUTPUT
          else
            echo "The current version matches the new version: $NEW_VERSION"
            exit 1
          fi

  create-github-release:
    name: Create GitHub Release
    runs-on: ubuntu-latest
    needs: version
    permissions:
      contents: read
    steps:
      - name: Check out repository
        uses: actions/checkout@v4
      - name: Check out latest HEAD commit
        run: git checkout HEAD^
      - name: Create GitHub Release
        id: create_release
        uses: actions/create-release@v1
        env:
          # This token is provided by Actions, you do not need to create your own token
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ github.event.inputs.new-version }}
          release_name: v${{ github.event.inputs.new-version }}
          draft: false
          prerelease: false

  publish-to-pypi:
    name: Publish to PyPI
    runs-on: ubuntu-latest
    needs: create-github-release
    permissions:
      contents: read
    steps:
      - name: Check out repository
        uses: actions/checkout@v4
      - name: Check out latest HEAD commit
        run: git checkout HEAD^
      - name: Set up Python
        uses: actions/setup-python@v3
        with:
          python-version: '3.x'
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install build
      - name: Build package
        run: python -m build
      - name: Publish package to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1.8
        with:
          user: __token__
          password: ${{ secrets.PYPI_API_TOKEN }}