sync.yml

name: Merge Upstream

on:
  schedule:
    - cron: '0 0 * * 0'

jobs:
  merge:
    name: Merge Upstream
    runs-on: ubuntu-latest
    
    permissions:
      contents: write
      actions: write

    steps:
      - name: Checkout Fork
        uses: actions/checkout@v6.0.3
        with:
          fetch-depth: 0

      - name: Fetch and Merge Upstream
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          UPSTREAM_REPO=$(gh repo view ${{ github.repository }} --json parent --template '{{if .parent}}{{.parent.owner.login}}/{{.parent.name}}{{end}}')
          
          if [ -z "$UPSTREAM_REPO" ]; then
            echo "This is the root repository. Skipping upstream merge."
            exit 0
          fi
          
          echo "Found original upstream repository: $UPSTREAM_REPO"
          
          git config --global user.name "github-actions[bot]"
          git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
          
          git remote add upstream "https://github.com/${UPSTREAM_REPO}.git"
          git fetch upstream main
          
          echo "Attempting to merge upstream/main into the fork..."
          if git merge upstream/main --no-edit; then
            echo "Merge successful! Pushing updates back to fork..."
            git push origin main
          else
            echo "::error::Merge conflict detected! The automated script cannot safely merge your custom changes with the upstream updates. You will need to resolve this conflict manually."
            exit 1
          fi