# File lib/rake/application.rb, line 446
446:     def rake_require(file_name, paths=$LOAD_PATH, loaded=$")
447:       fn = file_name + ".rake"
448:       return false if loaded.include?(fn)
449:       paths.each do |path|
450:         full_path = File.join(path, fn)
451:         if File.exist?(full_path)
452:           Rake.load_rakefile(full_path)
453:           loaded << fn
454:           return true
455:         end
456:       end
457:       fail LoadError, "Can't find #{file_name}"
458:     end