# File lib/hiera/backend/eyaml/utils.rb, line 105
        def self.require_dir classdir
          num_class_hierarchy_levels = self.to_s.split("::").count - 1 
          root_folder = File.dirname(__FILE__) + "/" + Array.new(num_class_hierarchy_levels).fill("..").join("/")
          class_folder = root_folder + "/" + classdir
          Dir[File.expand_path("#{class_folder}/*.rb")].uniq.each do |file|
            # puts "Requiring file: #{file}"
            require file
          end
        end