Contents

module Middleman::Extensions
  module MinifyJavascript
    class << self
      def registered(app)
        require 'uglifier'
        app.after_configuration do
          set :js_compressor, ::Uglifier.new
        end
        app.use InlineJavascriptRack
      end
      alias :included :registered
    end

    class InlineJavascriptRack
      def initialize(app, options={})
        @app = app
      end

      def call(env)
        status, headers, response = @app.call(env)

        if env["PATH_INFO"].match(/\.html$/)
          compressor = ::Uglifier.new

          uncompressed_source = case(response)
            when String
              response
            when Array
              response.join
            when Rack::Response
              response.body.join
            when Rack::File
              File.read(response.path)
          end

          minified = uncompressed_source.gsub(/(<scri.*?\/\/<!\[CDATA\[\n)(.*?)(\/\/\]\].*?<\/script>)/m) do |m|
            first = $1
            uncompressed_source = $2
            last = $3
            minified_js = compressor.compile(uncompressed_source)

            first << minified_js << "\n" << last
          end
          headers["Content-Length"] = ::Rack::Utils.bytesize(minified).to_s
          response = [minified]
        end

        [status, headers, response]
      end
    end
  end
  
  register :minify_javascript, MinifyJavascript
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
middleman-3.0.0.alpha.3	lib/middleman/extensions/minify_javascript.rb