no_pull_requests_to_main.yml

---
# This is a basic workflow to throw an error if a pull request targets the main and historic branches

name: No Pull Requests to Main and Historic Branches

# Triggers the workflow pull request events but only for certain branches
on:
  pull_request:
    branches: [master, main, develop-historic]

jobs:
  No_Pull_Requests_to_Main:
    runs-on: ubuntu-latest

    steps:
      - name: Run a one-line script
        run: |
          echo Pull requests to the main and historic branches are not allowed in this repository.
          exit 1