dd-sync.yml

# .github/workflows/sync-upstream.yml
name: Sync Upstream

on:
  schedule:
    - cron: '22 14 * * *' # Runs every day at 14:15 UTC
  workflow_dispatch:

jobs:
  sync:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v2
      with:
        persist-credentials: false
        fetch-depth: 0

    - name: Pull latest changes from upstream
      run: |
        git config --global user.email "sync@datadoghq.com"
        git config --global user.name "Datadog Syncup Service"
        git remote add upstream https://github.com/openjdk/jdk.git
        git fetch upstream
        git checkout -b upstream-master upstream/master
        git checkout master
        git merge upstream-master

    - name: Push changes to downstream
      uses: ad-m/github-push-action@master
      with:
        github_token: ${{ secrets.GH_PAT }}
        branch: master