def sprockets_map # :nodoc:
      {}.tap do |map|
        machined.sprockets.each do |sprocket|
          next unless sprocket.compile?
          map[sprocket.config.url] = sprocket
        end
      end
    end
def sprockets_map # :nodoc:
      {}.tap do |map|
        machined.sprockets.each do |sprocket|
          next unless sprocket.compile?
          map[sprocket.config.url] = sprocket
        end
      end
    end
Maps the Machined environment's current
 sprockets for use with `Rack::URLMap`.