How to render Rails 3 view in a rake task

tasks.rake

task :renderview => :environment do
  app = YourApp::Application
  app.routes.default_url_options = { :host => 'xxx.com' }
  controller = YourController.new
  view = ActionView::Base.new(app.config.paths.app.views.first, {}, controller)
  view.class_eval do
    include ApplicationHelper
    include app.routes.url_helpers
  end
  puts view.render(:template => 'your/action')
end