test_branch_exists.yml

# This is a basic workflow to help you get started with Actions

name: Test if branch exists

# Controls when the workflow will run
on:
  workflow_dispatch:

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  # This workflow contains a single job called "build"
  Test-Branch:
    # The type of runner that the job will run on
    runs-on: ubuntu-latest

    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
      - uses: actions/checkout@v3

      # Runs a single command using the runners shell
      - name: Check branch exists
        run: |
          UPDATE_SNAPSHOT_BRANCH_NAME="hj/test_branch"
          existed_in_remote=$(git ls-remote --heads origin $UPDATE_SNAPSHOT_BRANCH_NAME)
          if [[ -z ${existed_in_remote} ]]; then
            echo "doesnn't exist"
            exit 1
          else
            echo "exists"
            exit 0
          fi