added capistrano deploy tasks mirror rake tasks install_script and in…

…stall_assets

README.markdown

@@ -7,7 +7,7 @@ The `sprockets-rails` plugin sets up your Rails application for use with [Sprock
 
 To source Sprockets' JavaScript concatenation from your HTML templates, use the provided `sprockets_include_tag` helper.
 
-`sprockets-rails` also includes a set of Rake tasks for generating the concatenation (`rake sprockets:install_script`) and installing provided assets (`rake sprockets:install_assets`). Run `sprockets:install_assets` any time you add or update a Sprockets plugin in your application. Add `sprockets:install_script` as a [Capistrano](http://www.capify.org/) post-deploy hook to generate the Sprockets concatenation on your servers automatically at deploy time.
+`sprockets-rails` also includes a set of Rake tasks for generating the concatenation (`rake sprockets:install_script`) and installing provided assets (`rake sprockets:install_assets`). Run `sprockets:install_assets` any time you add or update a Sprockets plugin in your application. Add `after "deploy:update_code", "sprockets:install_script"` as a [Capistrano](http://www.capify.org/) post-deploy hook to generate the Sprockets concatenation on your servers automatically at deploy time.
 
 Here's a walkthrough of the installation process:
 

recipes/sprockets_tasks.rb

@@ -0,0 +1,17 @@
+def run_sprockets_rake_task(task)
+  rake = fetch(:rake, 'rake')
+  rails_env = fetch(:rails_env, 'production')
+  `cd #{current_release}; #{rake} RAILS_ENV=#{rails_env} sprockets:#{task}`
+end
+
+namespace :sprockets do
+  desc "Generate and install the Sprockets concatenated JavaScript file"
+  task :install_script, :roles => :app do
+    run_sprockets_rake_task 'install_script'
+  end
+
+  desc "Install any assets provided by Sprockets scripts"
+  task :install_assets, :roles => :app do
+    run_sprockets_rake_task 'install_assets'
+  end
+end