5 files changed, 20 insertions, 11 deletions
diff --git a/actionpack/lib/sprockets/assets.rake b/actionpack/lib/sprockets/assets.rake
index a801050084..80c3d4d0b8 100644
--- a/actionpack/lib/sprockets/assets.rake
+++ b/actionpack/lib/sprockets/assets.rake
@@ -39,12 +39,13 @@ namespace :assets do
       config = Rails.application.config
       config.assets.compile = true
       config.assets.digest  = digest unless digest.nil?
-
       config.assets.digests = {}
 
-      env    = Rails.application.assets
+      env = Rails.application.assets
+      env.context_class.send :include, ::Sprockets::Helpers::PrecompileHelper
+
       target = File.join(Rails.public_path, config.assets.prefix)
-      compiler = Sprockets::StaticCompiler.new(env, 
+      compiler = Sprockets::StaticCompiler.new(env,
                                                target,
                                                config.assets.precompile,
                                                :manifest_path => config.assets.manifest,
diff --git a/actionpack/lib/sprockets/helpers.rb b/actionpack/lib/sprockets/helpers.rb
index a952a55c5e..cd9c8f62e6 100644
--- a/actionpack/lib/sprockets/helpers.rb
+++ b/actionpack/lib/sprockets/helpers.rb
@@ -1,5 +1,6 @@
 module Sprockets
   module Helpers
-    autoload :RailsHelper, "sprockets/helpers/rails_helper"
+    autoload :RailsHelper,      "sprockets/helpers/rails_helper"
+    autoload :PrecompileHelper, "sprockets/helpers/precompile_helper"
   end
 end
diff --git a/actionpack/lib/sprockets/helpers/precompile_helper.rb b/actionpack/lib/sprockets/helpers/precompile_helper.rb
new file mode 100644
index 0000000000..ca7927f6fb
--- /dev/null
+++ b/actionpack/lib/sprockets/helpers/precompile_helper.rb
@@ -0,0 +1,13 @@
+module Sprockets
+  module Helpers
+    module PrecompileHelper
+      def controller
+        nil
+      end
+
+      def config
+        Rails.application.config.action_controller
+      end
+    end
+  end
+end
diff --git a/actionpack/lib/sprockets/helpers/rails_helper.rb b/actionpack/lib/sprockets/helpers/rails_helper.rb
index e1d8fccf04..f866bc626e 100644
--- a/actionpack/lib/sprockets/helpers/rails_helper.rb
+++ b/actionpack/lib/sprockets/helpers/rails_helper.rb
@@ -8,9 +8,6 @@ module Sprockets
 
       def asset_paths
         @asset_paths ||= begin
-          config     = self.config if respond_to?(:config)
-          config   ||= Rails.application.config
-          controller = self.controller if respond_to?(:controller)
           paths = RailsHelper::AssetPaths.new(config, controller)
           paths.asset_environment = asset_environment
           paths.asset_digests     = asset_digests
diff --git a/actionpack/lib/sprockets/railtie.rb b/actionpack/lib/sprockets/railtie.rb
index 2cf54b7777..e29612d320 100644
--- a/actionpack/lib/sprockets/railtie.rb
+++ b/actionpack/lib/sprockets/railtie.rb
@@ -43,10 +43,7 @@ module Sprockets
 
       ActiveSupport.on_load(:action_view) do
         include ::Sprockets::Helpers::RailsHelper
-
-        app.assets.context_class.instance_eval do
-          include ::Sprockets::Helpers::RailsHelper
-        end
+        app.assets.context_class.send :include, ::Sprockets::Helpers::RailsHelper
       end
     end