release-branch.yml

name: Cut Release Branch

on:
  workflow_dispatch:
    inputs:
      release_type:
        description: 'Release Type'
        required: true
        type: choice
        options:
          - RC
          - Hotfix

jobs:
  create-release-branch:
    name: Create Release Branch
    runs-on: ubuntu-24.04
    permissions:
      contents: write
    steps:
      - name: Check out repository
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          fetch-depth: 0

      - name: Create RC Branch
        if: inputs.release_type == 'RC'
        env:
          RC_PREFIX_DATE: "true" # replace with input if needed
        run: |
          if [ "$RC_PREFIX_DATE" = "true" ]; then
            current_date=$(date +'%Y.%m')
            branch_name="release/${current_date}-rc${{ github.run_number }}"
          else
            branch_name="release/rc${{ github.run_number }}"
          fi
          git switch main
          git switch -c $branch_name
          git push origin $branch_name
          echo "# :cherry_blossom: RC branch: ${branch_name}" >> $GITHUB_STEP_SUMMARY

      - name: Create Hotfix Branch
        if: inputs.release_type == 'Hotfix'
        run: |
          latest_tag=$(git tag -l --sort=-creatordate | head -n 1)
          if [ -z "$latest_tag" ]; then
            echo "::error::No tags found in the repository"
            exit 1
          fi
          branch_name="release/hotfix-${latest_tag}"
          echo "🌿 branch name: $branch_name"
          if git show-ref --verify --quiet "refs/remotes/origin/$branch_name"; then
            echo "# :fire: :warning: Hotfix branch already exists: ${branch_name}" >> $GITHUB_STEP_SUMMARY
            exit 0
          fi
          git switch -c $branch_name $latest_tag
          git push origin $branch_name
          echo "# :fire: Hotfix branch: ${branch_name}" >> $GITHUB_STEP_SUMMARY