publish.yaml

---
# This workflow will upload a Python Package using Twine
# For more information see:
# https://help.github.com/en/actions/language-and-framework-guides/using-python-with-github-actions#publishing-to-package-registries

name: Upload Python Package

on:
  release:
    types: published


jobs:

  check-version:  # --------------------------------------------------------------------
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: get versions
        id: get
        run: |
          echo "NEW_VERSION=$(echo '${{ github.ref_name }}' | cut -c2-)" | tee -a $GITHUB_OUTPUT
          echo "OLD_VERSION=$(curl -s https://pypi.org/pypi/readchar/json |jq -r .info.version)" | tee -a $GITHUB_OUTPUT

      - name: validate version
        id: valid
        shell: python
        run: |
          from sys import exit
          from packaging import version
          new_version = version.parse("${{ steps.get.outputs.NEW_VERSION }}")
          old_version = version.parse("${{ steps.get.outputs.OLD_VERSION }}")
          if not new_version > old_version:
            print(f"::error::New version '{new_version}' not greatet than '{old_version}'")
            exit(1)

    outputs:
      version: ${{ steps.get.outputs.NEW_VERSION }}


  tag:  # ------------------------------------------------------------------------------
    runs-on: ubuntu-latest
    needs: check-version
    permissions:
      contents: write
    env:
      VERSION: ${{ needs.check-version.outputs.version }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: update pyproject.toml
        run: sed -i -r "s/^(version = ).*$/\1\"$VERSION\"/" pyproject.toml

      - name: commit version
        env:
          USER: github-actions[bot]
          EMAIL: github-actions[bot]@users.noreply.github.com
        run: git -c user.name="$USER" -c user.email="$EMAIL" commit --all -m "release v$VERSION"

      - name: update tag
        run: git tag -f "v$VERSION"

      - name: push updates
        run: git push --tags -f


  deploy:  # ---------------------------------------------------------------------------
    runs-on: ubuntu-latest
    needs: tag
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: ${{ github.ref }}

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

      - name: Install dependencies
        run: pip install build twine

      - name: Build sdist and bdist_wheel
        run: python -m build

      - name: publish to PyPi
        env:
          TWINE_USERNAME: __token__
          TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }}
        run: twine upload dist/*


  increment:  # ------------------------------------------------------------------------
    runs-on: ubuntu-latest
    needs: deploy
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: ${{ github.ref }}
          fetch-depth: 3

      - name: get versions
        id: get
        shell: python
        run: |
          from sys import exit
          from os import environ
          from packaging import version
          ver = version.parse("${{ github.ref_name }}")
          if ver.dev is not None:
            new_ver = f"{ver.base_version}-dev{ver.dev +1}"
          else:
            new_ver = f"{ver.major}.{ver.minor}.{ver.micro +1}-dev0"
          with open(environ.get("GITHUB_OUTPUT"), "a") as fp:
            towrite = f"NEW_VERSION={new_ver}"
            print(towrite)
            fp.write(towrite + "\n")

      - name: update pyproject.toml
        env:
          VERSION: ${{ steps.get.outputs.NEW_VERSION }}
        run: sed -i -r "s/^(version = ).*$/\1\"$VERSION\"/" pyproject.toml

      - name: commit version
        env:
          USER: github-actions[bot]
          EMAIL: github-actions[bot]@users.noreply.github.com
        run: git -c user.name="$USER" -c user.email="$EMAIL" commit --all -m "increment version after release"

      - name: push updates
        run: |
          git fetch origin 'refs/heads/*:refs/remotes/origin/*'
          git push origin "HEAD:$(git log --pretty='%D' | grep -oPm1 '(?<=origin/).*')"