check-branch.yml

name: Check Branch Name and Prevent Main Merge

on:
  pull_request:
    branches:
      - dev
      - main

jobs:
  check-branch-name:
    runs-on: ubuntu-latest
    if: github.event.pull_request.base.ref == 'dev'
    steps:
      - name: Extract Source Branch Name
        run: |
          branch_name=$(jq -r .pull_request.head.ref "$GITHUB_EVENT_PATH")
          echo "Source Branch: $branch_name"

          if [[ ! $branch_name =~ ^(feat/[0-9]+|bug/[0-9]+|refactor/[0-9]+|hotfix_[0-9]{4}|chore_[0-9]{4}|gh-pages)$ ]]; then
            echo "Error: Branch name must follow the pattern 'feat/[number]', 'bug/[number]', 'hotfix_mmdd', 'chore_mmdd', or 'gh-pages'."
            exit 1
          fi

  prevent-main-merge:
    runs-on: ubuntu-latest
    if: github.event.pull_request.base.ref == 'main'
    steps:
      - name: Prevent Merge to Main
        run: |
          base_branch=$(jq -r .pull_request.base.ref "$GITHUB_EVENT_PATH")
          echo "Base Branch: $base_branch"

          if [[ $base_branch == "main" ]]; then
            echo "Error: Pull requests to the main branch are not allowed."
            exit 1
          fi