name: Sync Upstream (12h)

on:
  schedule:
    - cron: "0 */12 * * *"
  workflow_dispatch:

jobs:
  sync:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout fork
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Add upstream remote
        run: |
          git remote add upstream https://git.suckless.org/surf || true
          git fetch upstream

      - name: Merge upstream into master
        run: |
          git checkout master
          git merge upstream/master --strategy-option ours --no-edit || true

      - name: Push merged branch
        run: |
          git push origin master