shared-promote-auto-pr.yaml

name: Create Deployment Pull Request
on:
  workflow_call:
jobs:
  create_pr:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      - name: Create Pull Request
        run: |
          echo "branch ${{ github.ref }} was pushed to"
          if [ ${{ github.ref }} == "refs/heads/main" ]; then
            base="test"
          elif [ ${{ github.ref }} == "refs/heads/test" ]; then
            base="integ"
          elif [ ${{ github.ref }} == "refs/heads/integ" ]; then
            base="prod"
          else
            exit 0
          fi
          echo "promotion is to ${base}"
          
          # Check if a PR already exists
          existing_pr=$(gh pr list --base ${base} --head main --state open --json number --jq '.[0].number')

          if [ -z "$existing_pr" ]; then
            echo "No existing PR found. Creating a new PR."
            gh pr create --base ${base} --head main --title "PR from main to ${base}" --body "Automated PR from main to ${base} branch"
          else
            echo "PR already exists: #$existing_pr"
          fi
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}