install_generator.rb in manifest-rails-0.2.0

- old
+ new

@@ -32,7 +32,23 @@
   end
 
   def create_public_layout
     create_file 'app/views/layouts/public.html.erb'
   end
+
+  def require_manifest_in_application_rb
+    application_file = "#{Rails.root}/config/application.rb"
+
+    File.open(application_file, 'r') do |f|
+      sentinel = /Bundler.require/
+      inject_into_file application_file, "require 'manifest'\n\n", before: sentinel
+    end
+  end
+
+  def inject_assets_for_precompiling_in_application_rb
+    line = "    config.assets.precompile += ['manifest/main.css', 'manifest/sessions.css', 'manifest/main.js']\n"
+    application_file = "#{Rails.root}/config/application.rb"
+    sentinel = /^ {2}end\nend/
+    inject_into_file application_file, line, before: sentinel
+  end
 end
 