FIX: Do not gzip when using uglifier.

lib/tasks/assets.rake

@@ -29,37 +29,14 @@ task 'assets:precompile:before' do
   include GlobalPath
 
   if $node_uglify
-    # monkey patch asset pipeline not to gzip, compress: false is broken
-    class ::Sprockets::Asset
-      # Save asset to disk.
-      def write_to(filename, options = {})
-        # Gzip contents if filename has '.gz'
-        return if File.extname(filename) == '.gz'
-
-        begin
-          FileUtils.mkdir_p File.dirname(filename)
-
-          File.open("#{filename}+", 'wb') do |f|
-            f.write to_s
-          end
-
-          # Atomic write
-          FileUtils.mv("#{filename}+", filename)
-
-          # Set mtime correctly
-          File.utime(mtime, mtime, filename)
-
-          nil
-        ensure
-          # Ensure tmp file gets cleaned up
-          FileUtils.rm("#{filename}+") if File.exist?("#{filename}+")
-        end
-      end
-
-
-    end
-
     module ::Sprockets
+      # TODO: https://github.com/rails/sprockets-rails/pull/342
+      # Rails.configuration.assets.gzip = false
+      class Base
+        def skip_gzip?
+          true
+        end
+      end
 
       class UglifierCompressor