get rid of Jammit dependency in production mode

src/Gemfile

@@ -8,7 +8,6 @@ gem 'thin', '>=1.2.11'
 gem 'tire' , '>= 0.3.0', '< 0.4'
 gem 'json'
 gem 'rest-client', :require => 'rest_client'
-gem 'jammit'
 gem 'pg'
 # gem 'bson_ext', '>= 1.0.4'
 gem 'rails_warden'
@@ -56,6 +55,8 @@ gem 'acts_as_reportable', '>=1.1.1'
 # end
 
 group :test, :development do
+  gem 'jammit'
+
   # To use debugger
   gem 'ruby-debug'
   gem 'ZenTest', '>= 4.4.0'

src/app/helpers/application_helper.rb

@@ -278,5 +278,43 @@ def a_link(name, href, html_options)
     return link.respond_to?(:html_safe) ? link.html_safe : link
   end
 
+  unless defined? Jammit
+    # We don't need Jammit and all it's dependencies in the production mode.
+    # This should be all what's needed when running in production.
+
+    def include_stylesheets(*packages)
+      options = packages.extract_options!
+      if options[:embed_assets] == false
+        html = stylesheet_links(packages.map { |p| asset_url(p, :css) }, options)
+      else
+        datauri_tags = stylesheet_links(packages.map { |p| asset_url(p, :css, :datauri) }, options)
+        ie_tags = stylesheet_links(packages.map { |p| asset_url(p, :css) }, options)
+        html = ["<!--[if (!IE)|(gte IE 8)]><!-->",
+                datauri_tags,
+                "<!--<![endif]-->",
+                ie_tags,
+                "<!--[if lte IE 7]>",
+                "<![endif]-->"].join("\n")
+      end
+      html.html_safe
+    end
 
+    def include_javascripts(*packages)
+      options = packages.extract_options!
+      javascript_links(packages.map { |p| asset_url(p, :js) }, options).html_safe
+    end
+
+    def stylesheet_links(files, options)
+      files.map { |f| stylesheet_link_tag(f, options) }.join("\n")
+    end
+
+    def javascript_links(files, options)
+      files.map { |f| javascript_include_tag(f, options) }.join("\n")
+    end
+
+    def asset_url(package, extension, suffix = nil)
+      filename = "#{[package, suffix].compact.join("-")}.#{extension}"
+      "/assets/#{filename}"
+    end
+  end
 end