use the rake-pipeline project directly. cuts asset build time by 50%

lib/guard/assets.rb

@@ -2,6 +2,7 @@ $stdout.sync = true
 
 require 'guard'
 require 'guard/guard'
+require 'rake-pipeline'
 
 module Guard
   class Assets < Guard
@@ -28,11 +29,13 @@ module Guard
       def run
         started = Time.now
         print 'Compiling ... '
-        system 'bundle exec rakep'
+        project.invoke_clean
         puts "done (#{(Time.now - started).round(2)}s)."
       end
+
+      def project
+        @project ||= Rake::Pipeline::Project.new('./Assetfile')
+      end
   end
 end
 
-
-

public/version

@@ -1 +1 @@
-3e9dccd4
+f480d531