Unify sprockets config options

actionpack/lib/action_controller/railtie.rb

@@ -21,7 +21,7 @@ class Railtie < Rails::Railtie
       paths   = app.config.paths
       options = app.config.action_controller
 
-      options.use_sprockets        ||= app.config.asset_pipeline
+      options.use_sprockets        ||= app.config.assets.enabled
       options.assets_dir           ||= paths["public"].first
       options.javascripts_dir      ||= paths["public/javascripts"].first
       options.stylesheets_dir      ||= paths["public/stylesheets"].first

railties/lib/rails/application.rb

@@ -142,23 +142,25 @@ def assets
     end
 
     def build_asset_environment
-      return unless config.asset_pipeline
+      return unless config.assets.enabled
       require 'sprockets'
       env = Sprockets::Environment.new(root.to_s)
-      env.static_root = root.join("public/assets")
+      env.static_root = root.join("public/#{config.assets.prefix}")
       env
     end
 
     initializer :add_sprockets_paths do |app|
-      if config.asset_pipeline
-        [
-         "app/javascripts",
-         "app/stylesheets",
-         "vendor/plugins/*/app/javascripts",
-         "vendor/plugins/*/app/stylesheets",
-         "vendor/plugins/*/javascripts",
-         "vendor/plugins/*/stylesheets"
-        ].each do |pattern|
+      if config.assets.enabled
+        paths = [
+          "app/javascripts",
+          "app/stylesheets",
+          "vendor/plugins/*/app/javascripts",
+          "vendor/plugins/*/app/stylesheets",
+          "vendor/plugins/*/javascripts",
+          "vendor/plugins/*/stylesheets"
+        ] + config.assets.paths
+
+        paths.each do |pattern|
           Dir[app.root.join(pattern)].each do |dir|
             app.assets.paths << dir
           end

railties/lib/rails/application/configuration.rb

@@ -10,7 +10,7 @@ class Configuration < ::Rails::Engine::Configuration
                     :preload_frameworks, :reload_plugins,
                     :secret_token, :serve_static_assets, :session_options,
                     :time_zone, :whiny_nils, :force_ssl,
-                    :asset_pipeline, :precompile_assets
+                    :assets
 
       attr_writer :log_level
 
@@ -30,8 +30,12 @@ def initialize(*)
         @log_level                   = nil
         @middleware                  = app_middleware
         @generators                  = app_generators
-        @asset_pipeline              = false
-        @precompile_assets           = []
+
+        @assets = ActiveSupport::OrderedOptions.new
+        @assets.enabled    = false
+        @assets.paths      = []
+        @assets.precompile = []
+        @assets.prefix     = "/assets"
       end
 
       def compiled_asset_path

railties/lib/rails/application/finisher.rb

@@ -34,15 +34,16 @@ module Finisher
       end
 
       initializer :add_sprockets_route do |app|
-        if config.asset_pipeline
+        assets = config.assets
+        if assets.enabled
           app.routes.append do
-            mount app.assets => "/assets"
+            mount app.assets => assets.prefix
           end
         end
       end
 
       initializer :set_sprockets_logger do |app|
-        if config.asset_pipeline
+        if config.assets.enabled
           app.assets.logger = Rails.logger
         end
       end