cut branch workflow

create-rc-branch.yml

name: Create a release candidate branch

on:
  schedule:
    - cron: "45 9 * * 5" # Early Friday morning Central time (cron is UTC time!)

  workflow_dispatch:

jobs:
  create-release-candidate:
    runs-on: ubuntu-latest
    steps:
      - name: Get branch name
        id: get-branch-name
        run: echo "::set-output name=branch-name::release/RC-$(date +'%Y-%m-%d')"
      - name: Checkout 'master'
        uses: actions/checkout@v2
        with:
          ref: "master"
      - name: Configure git user name and email
        run: |
          git config --local user.email "[email protected]"
          git config --local user.name "Bot"
      - name: Check if RC branch already exists
        id: branch-check
        run: |
          if [ -z "$(git ls-remote --heads origin ${{ steps.get-branch-name.outputs.branch-name }})" ]; then
            echo "::set-output name=create-branch::yes"
          fi
      - name: Create RC branch
        run: |
          git checkout -b ${{ steps.get-branch-name.outputs.branch-name }}
          git push --set-upstream origin \
            ${{ steps.get-branch-name.outputs.branch-name }}
          git tag ${{ steps.get-branch-name.outputs.branch-name }}-001
          git push --tags
        if: steps.branch-check.outputs.create-branch == 'yes'