From 5493d22419913c279a8baf38a10ffe6a9782c274 Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Wed, 24 Aug 2011 10:54:01 -0500
Subject: [PATCH] Bring in sprockets precompile task

---
 actionpack/lib/sprockets/assets.rake | 29 +++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/actionpack/lib/sprockets/assets.rake b/actionpack/lib/sprockets/assets.rake
index acf2f256c28c7..7594ee4296b55 100644
--- a/actionpack/lib/sprockets/assets.rake
+++ b/actionpack/lib/sprockets/assets.rake
@@ -17,9 +17,32 @@ namespace :assets do
       Rails.application.config.action_controller.perform_caching = true
 
       config = Rails.application.config
-      assets = config.assets.precompile.dup
-      assets << {:to => File.join(Rails.public_path, config.assets.prefix)}
-      Rails.application.assets.precompile(*assets)
+      env    = Rails.application.assets
+      target = Rails.root.join("public#{config.assets.prefix}")
+
+      if env.respond_to?(:each_logical_path)
+        config.assets.precompile.each do |path|
+          env.each_logical_path do |logical_path|
+            if path.is_a?(Regexp)
+              next unless path.match(logical_path)
+            else
+              next unless File.fnmatch(path.to_s, logical_path)
+            end
+
+            if asset = env.find_asset(logical_path)
+              filename = target.join(asset.digest_path)
+              mkdir_p filename.dirname
+              asset.write_to(filename)
+              asset.write_to("#{filename}.gz") if filename.to_s =~ /\.(css|js)$/
+            end
+          end
+        end
+      else
+        # TODO: Remove this once we're depending on sprockets beta 15
+        assets = config.assets.precompile.dup
+        assets << {:to => target}
+        env.precompile(*assets)
+      end
     end
   end