Read digests of assets from manifest.yml if config.assets.manifest is on

1 files changed, 9 insertions, 1 deletions

diff --git a/actionpack/lib/sprockets/assets.rake b/actionpack/lib/sprockets/assets.rake
index 5698f22080..7ee82ee530 100644
--- a/actionpack/lib/sprockets/assets.rake
+++ b/actionpack/lib/sprockets/assets.rake
@@ -19,7 +19,8 @@ namespace :assets do
 
       config = Rails.application.config
       env    = Rails.application.assets
-      target = Rails.root.join("public#{config.assets.prefix}")
+      target = Pathname.new(File.join(Rails.public_path, config.assets.prefix))
+      manifest = {}
 
       if env.respond_to?(:each_logical_path)
         config.assets.precompile.each do |path|
@@ -31,6 +32,7 @@ namespace :assets do
             end
 
             if asset = env.find_asset(logical_path)
+              manifest[logical_path] = asset.digest_path
               filename = target.join(asset.digest_path)
               mkdir_p filename.dirname
               asset.write_to(filename)
@@ -44,6 +46,12 @@ namespace :assets do
         assets << {:to => target}
         env.precompile(*assets)
       end
+
+      if config.assets.manifest
+        File.open("#{target}/manifest.yml", 'w') do |f|
+          YAML.dump(manifest, f)
+        end
+      end
     end
   end