version-check.yml

name: Version Check

on:
  pull_request:
    branches: [main]

jobs:
  version-check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Fetch main branch
        run: git fetch origin main

      - name: Check version bump
        run: |
          PR_VERSION=$(grep -m1 '^version' pyproject.toml | sed 's/.*"\(.*\)"/\1/')
          MAIN_VERSION=$(git show origin/main:pyproject.toml | grep -m1 '^version' | sed 's/.*"\(.*\)"/\1/')
          echo "PR version:   $PR_VERSION"
          echo "Main version: $MAIN_VERSION"
          if [ "$PR_VERSION" = "$MAIN_VERSION" ]; then
            echo "::error::Version in pyproject.toml ($PR_VERSION) has not been bumped. Please update the version before merging to main."
            exit 1
          fi
          echo "Version bumped: $MAIN_VERSION -> $PR_VERSION"