1 files changed, 14 insertions, 4 deletions
diff --git a/actionpack/lib/sprockets/assets.rake b/actionpack/lib/sprockets/assets.rake
index 43405f3db9..2e92fe416b 100644
--- a/actionpack/lib/sprockets/assets.rake
+++ b/actionpack/lib/sprockets/assets.rake
@@ -6,7 +6,11 @@ namespace :assets do
     groups = ENV['RAILS_GROUPS'] || 'assets'
     args   = [$0, task,"RAILS_ENV=#{env}","RAILS_GROUPS=#{groups}"]
     args << "--trace" if Rake.application.options.trace
-    fork ? ruby(*args) : Kernel.exec(FileUtils::RUBY, *args)
+    if $0 =~ /rake\.bat\Z/i
+      Kernel.exec $0, *args
+    else  
+      fork ? ruby(*args) : Kernel.exec(FileUtils::RUBY, *args)
+    end    
   end
 
   # We are currently running with no explicit bundler group
@@ -62,11 +66,11 @@ namespace :assets do
       ruby_rake_task("assets:precompile:nondigest", false) if Rails.application.config.assets.digest
     end
 
-    task :primary => ["assets:environment", "tmp:cache:clear"] do
+    task :primary => ["assets:cache:clean"] do
       internal_precompile
     end
 
-    task :nondigest => ["assets:environment", "tmp:cache:clear"] do
+    task :nondigest => ["assets:cache:clean"] do
       internal_precompile(false)
     end
   end
@@ -77,13 +81,19 @@ namespace :assets do
   end
 
   namespace :clean do
-    task :all => ["assets:environment", "tmp:cache:clear"] do
+    task :all => ["assets:cache:clean"] do
       config = Rails.application.config
       public_asset_path = File.join(Rails.public_path, config.assets.prefix)
       rm_rf public_asset_path, :secure => true
     end
   end
 
+  namespace :cache do
+    task :clean => ["assets:environment"] do
+      Rails.application.assets.cache.clear
+    end
+  end
+
   task :environment do
     if Rails.application.config.assets.initialize_on_precompile
       Rake::Task["environment"].invoke