1 files changed, 44 insertions, 0 deletions
diff --git a/actioncable/Rakefile b/actioncable/Rakefile
index b6c56e9195..1d77fc7067 100644
--- a/actioncable/Rakefile
+++ b/actioncable/Rakefile
@@ -1,9 +1,16 @@
 require 'rake/testtask'
+require 'pathname'
+require 'sprockets'
+require 'coffee-script'
+require 'action_cable'
 
 dir = File.dirname(__FILE__)
 
 task :default => :test
 
+task :package => "assets:compile"
+task "package:clean" => "assets:clean"
+
 Rake::TestTask.new do |t|
   t.libs << "test"
   t.test_files = Dir.glob("#{dir}/test/**/*_test.rb")
@@ -11,3 +18,40 @@ Rake::TestTask.new do |t|
   t.verbose = true
   t.ruby_opts = ["--dev"] if defined?(JRUBY_VERSION)
 end
+
+namespace :assets do
+  root_path = Pathname.new(dir)
+  destination_path = root_path.join("lib/assets/compiled")
+
+  desc "Compile dist/action_cable.js"
+  task :compile do
+    puts 'Compiling Action Cable assets...'
+
+    precompile_list = %w(action_cable.js)
+
+    environment = Sprockets::Environment.new
+    environment.gzip = false
+    Pathname.glob(root_path.join("app/assets/*/")) do |subdir|
+      environment.append_path subdir
+    end
+
+    compile_path = root_path.join("tmp/sprockets")
+    compile_path.rmtree if compile_path.exist?
+    compile_path.mkpath
+
+    manifest = Sprockets::Manifest.new(environment.index, compile_path)
+    manifest.compile(precompile_list)
+
+    destination_path.rmtree if destination_path.exist?
+    manifest.assets.each do |path, fingerprint_path|
+      destination_path.join(path).dirname.mkpath
+      FileUtils.cp(compile_path.join(fingerprint_path), destination_path.join(path))
+    end
+
+    puts 'Done'
+  end
+
+  task :clean do
+    destination_path.rmtree if destination_path.exist?
+  end
+end