app/services/delete_branch_service.rb


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# frozen_string_literal: true

class DeleteBranchService < BaseService
  def execute(branch_name)
    repository = project.repository
    branch = repository.find_branch(branch_name)

    unless current_user.can?(:push_code, project)
      return ServiceResponse.error(
        message: 'You dont have push access to repo',
        http_status: 405)
    end

    unless branch
      return ServiceResponse.error(
        message: 'No such branch',
        http_status: 404)
    end

    if repository.rm_branch(current_user, branch_name)
      ServiceResponse.success(message: 'Branch was deleted')
    else
      ServiceResponse.error(
        message: 'Failed to remove branch',
        http_status: 400)
    end
  rescue Gitlab::Git::PreReceiveError => ex
    ServiceResponse.error(message: ex.message, http_status: 400)
  end
end