rake_require (Rake::Application)

          # File lib/rake.rb, line 1803
    1803:     def rake_require(file_name, paths=$LOAD_PATH, loaded=$")
    1804:       return false if loaded.include?(file_name)
    1805:       paths.each do |path|
    1806:         fn = file_name + ".rake"
    1807:         full_path = File.join(path, fn)
    1808:         if File.exist?(full_path)
    1809:           load full_path
    1810:           loaded << fn
    1811:           return true
    1812:         end
    1813:       end
    1814:       fail LoadError, "Can't find #{file_name}"
    1815:     end