rebase.yml

name: Rebase Upstream
on:
  schedule:
  - cron: "0 0 * * *"
  workflow_dispatch:

jobs:
  sync:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
      with:
        token: ${{ secrets.GH_PAT }}

    - name: Use PAT for origin
      run: |
        GITHUB_TOKEN=${{ secrets.GH_PAT }}
        old_origin=$(git remote get-url origin)
        git remote set-url origin "${old_origin/https:\/\//https:\/\/$GITHUB_TOKEN@}"
      shell: bash
      
    - name: Rebase upstream changes
      id: rebase
      run: |
        function commit_on_change {
          git status --porcelain | grep -q . && git add -A && git commit -m "$1"
        }
        
        # Configure committer identity
        git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
        git config --global user.name  "GitHub Actions"

        # Configure merge driver
        git config --global merge.ours.driver true
        attributes="README.md merge=ours\n.github/workflows/** merge=ours"
        grep -q "$attributes" .gitattributes || echo "$attributes" >> .gitattributes
        commit_on_change "chore(gitattributes): reapply merge driver"

        # Fetch changes and rebase
        git remote add upstream https://github.com/PrismLauncher/PrismLauncher.git
        git fetch upstream develop
        git rebase upstream/develop -X theirs

        # Remove actions triggers we don't need
        rm .github/workflows/trigger_builds.yml .github/workflows/trigger_release.yml
        commit_on_change "chore(actions): remove trigger workflows"
          
        # Push and allow triggering release if there were changes
        if ! git diff --quiet origin/develop -- . ':(exclude).gitattributes' ':(exclude).github/workflows/'; then
          echo "has_changed=true" >> $GITHUB_OUTPUT
          git push --force-with-lease
        fi
        
    - name: Trigger nightly release
      if: ${{ steps.rebase.outputs.has_changed }}
      uses: peter-evans/repository-dispatch@v3
      with:
        repository: 0x5eal/prismlauncher-nightlies
        event-type: release