Add a block option to checkout_git_repository

app/models/manageiq/providers/embedded_automation_manager/configuration_script_source.rb

@@ -85,11 +85,22 @@ def sync
  raise NotImplementedError, N_("sync must be implemented in a subclass")
  end
 
- def checkout_git_repository(target_directory)
+ def checkout_git_repository(target_directory = nil)
  return if git_repository.nil?
 
+ target_directory_given = !!target_directory
+ target_directory ||= Pathname.new(Dir.mktmpdir)
+
  git_repository.update_repo
  git_repository.checkout(scm_branch, target_directory)
+
+ return target_directory unless block_given?
+
+ begin
+ yield target_directory
+ ensure
+ FileUtils.rm_rf(target_directory) unless target_directory_given
+ end
  end
 
  private