Engine/.github/workflows/create-branch.yml

name: Create Branch from Another Repo

on:
  workflow_dispatch: # Allows manual triggering of the workflow
    inputs:
      new_branch_name:
        description: 'Name of the new branch'
        required: true
      source_repo_url:
        description: 'URL of the source repository'
        required: true
      source_branch:
        description: 'Branch name in the source repository'
        required: true

jobs:
  create-branch:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout your repository
        uses: actions/checkout@v3

      - name: Clone the source repository
        env:
          SOURCE_REPO_TOKEN: ${{ secrets.SOURCE_REPO_TOKEN }}
        run: |
          REPO_URL=${{ github.event.inputs.source_repo_url }}
          CLEANED_URL=${REPO_URL#https://}
          git clone --depth=1 --branch ${{ github.event.inputs.source_branch }} https://$SOURCE_REPO_TOKEN@${CLEANED_URL} source-repo
      
      - name: Create new branch and copy changes
        run: |
          cd source-repo
          git checkout -b ${{ github.event.inputs.new_branch_name }}
          cd ..
          mv source-repo/* .
          git add .
          git commit -m "Created branch ${{ github.event.inputs.new_branch_name }} based on ${{ github.event.inputs.source_branch }} from the source repository"
          git branch -M ${{ github.event.inputs.new_branch_name }}

      - name: Push new branch to your repository
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          git remote add origin https://github.com/${{ github.repository }}
          git push -u origin ${{ github.event.inputs.new_branch_name }}