create-merge-prs.yaml

name: Merge Main to Other Branches

on:
  push:
    branches:
      - main
  # just for testing
  pull_request:
    branches:
      - main

jobs:
  create-merge-prs:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        name: [ezeth, injective, nexus]
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Configure Git
        run: |
          git config user.name "GitHub Actions Bot"
          git config user.email "github-actions[bot]@users.noreply.github.com"

      - name: Create and push merge branch
        run: |
          git checkout ${{ matrix.name }}
          git merge origin/main
          git checkout -b main-to-${{ matrix.name }}
          echo "testing" > dummy_test_file.txt
          git add dummy_test_file.txt
          git commit -m "chore: merge main into ${{ matrix.name }}"
          git push -fu origin main-to-${{ matrix.name }}

      - name: Check and Create Pull Request
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          PR_EXISTS=$(gh pr list --base ${{ matrix.name }} --head main-to-${{ matrix.name }} --json number --jq length)
          if [ "$PR_EXISTS" -eq "0" ]; then
            gh pr create \
              --base ${{ matrix.name }} \
              --head main-to-${{ matrix.name }} \
              --title "chore: merge main into ${{ matrix.name }}" \
              --body "This PR was automatically created to merge changes from \`main\` into \`${{ matrix.name }}\`." \
              --draft
          else
            echo "Pull request already exists. Skipping creation."
          fi