initialize_dirs

# File railties/guides/rails_guides/generator.rb, line 132
    def initialize_dirs(output)
      @guides_dir = File.join(File.dirname(__FILE__), '..')
      @source_dir = "#@guides_dir/source/#@lang"
      @output_dir = if output
        output
      elsif kindle?
        "#@guides_dir/output/kindle/#@lang"
      else
        "#@guides_dir/output/#@lang"
      end.sub(%</$>, '')
    end