# File lib/vimmatelib/files.rb, line 195
    def add_path(path)
      return unless File.exist? path
      return if @exclude_file_list.any? {|f| path[-(f.size+1)..-1] == "/#{f}" }
      @paths << if File.directory? path
                  ListedDirectory.new(path, @exclude_file_list, &@signal_method)
                else
                  ListedFile.new(path, &@signal_method)
                end
      self
    end