extract paths in Assetfile; rename javascripts to scripts, stylesheets to styles

AssetFile

@@ -6,13 +6,17 @@ require 'compass'
 
 roots ||= [Pathname.new(File.expand_path('.'))]
 
-Compass.configuration.images_path = 'assets/images'
-Compass.configuration.add_import_path File.expand_path('../assets/stylesheets', __FILE__)
+paths = %w(styles scripts images static).inject({}) do |paths, type|
+  paths.merge(type.to_sym => roots.map { |root| root.join("assets/#{type}").to_s })
+end
+
+Compass.configuration.images_path = paths[:images].first
+Compass.configuration.add_import_path paths[:styles].first
 
 Travis::Version.update
 
-output 'public/javascripts'
-input roots.map { |root| root.join('assets/javascripts').to_s } do
+output 'public/scripts'
+input paths[:scripts] do
   match 'app/templates/**/*.hbs' do
     filter Travis::HandlebarsFilter
     concat 'app/templates.js'
@@ -46,8 +50,8 @@ input roots.map { |root| root.join('assets/javascripts').to_s } do
   end
 end
 
-output 'public/stylesheets'
-input roots.map { |root| root.join('assets/stylesheets').to_s } do
+output 'public/styles'
+input paths[:styles] do
   match '**/*.{scss,sass}' do
     filter Rake::Pipeline::Web::Filters::SassFilter
     concat [], 'application.css'
@@ -55,14 +59,14 @@ input roots.map { |root| root.join('assets/stylesheets').to_s } do
 end
 
 output 'public/images'
-input roots.map { |root| root.join('assets/images').to_s } do
+input paths[:images] do
   match '**/*' do
     copy
   end
 end
 
 output 'public'
-input roots.map { |root| root.join('assets/public').to_s } do
+input paths[:static] do
   match '**/*' do
     copy
   end