create-tag.yml

name: Create Version Tag from pyproject.toml

on:
  push:
    branches:
      - main
    paths:
      - "pyproject.toml"
  workflow_dispatch: # Enables manual runs

permissions:
  contents: write

jobs:
  create-tag:
    runs-on: ubuntu-latest
    steps:
      - name: Check out code
        uses: actions/checkout@v4

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

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

      - name: Install dependencies
        run: pip install toml

      - name: Extract version from pyproject.toml
        id: get_version
        run: |
          version=$(python -c "import toml; print(toml.load('pyproject.toml')['project']['version'])")
          echo "version=$version" >> $GITHUB_OUTPUT

      - name: Create Git tag if not exists
        run: |
          git fetch --tags
          tag="v${{ steps.get_version.outputs.version }}"
          if ! git rev-parse "$tag" >/dev/null 2>&1; then
            git tag "$tag"
            git push origin "$tag"
          else
            echo "Tag $tag already exists."
          fi