# Extension namespace module Middleman module Extensions # Minify Javascript Extension module MinifyJavascript # Setup extension class << self # Once registered def registered(app, options={}) app.set :js_compressor, false ignore = Array(options[:ignore]) << /\.min\./ inline = options[:inline] || false # Once config is parsed app.after_configuration do chosen_compressor = js_compressor || options[:compressor] || begin require 'uglifier' ::Uglifier.new end # Setup Rack middlware to minify JS use Rack, :compressor => chosen_compressor, :ignore => ignore, :inline => inline end end alias :included :registered end # Rack middleware to look for JS and compress it class Rack # Init # @param [Class] app # @param [Hash] options def initialize(app, options={}) @app = app @compressor = options[:compressor] @ignore = options[:ignore] @inline = options[:inline] end # Rack interface # @param [Rack::Environmemt] env # @return [Array] def call(env) status, headers, response = @app.call(env) path = env["PATH_INFO"] begin if (path.end_with?('.html') || path.end_with?('.php')) && @inline uncompressed_source = ::Middleman::Util.extract_response_text(response) minified = uncompressed_source.gsub(/(]*>\s*(?:\/\/(?:(?:)|(?:\]\]>)))?\s*<\/script>)/m) do |match| first = $1 javascript = $2 last = $3 # Only compress script tags that contain JavaScript (as opposed # to something like jQuery templates, identified with a "text/html" # type. if first =~ /