define :notify_newrelic, :deploy_path=>nil, :environment=>nil do

  script "notifying new relic of deploy" do
    interpreter "ruby"
    user "deployer"
    cwd params[:name]
    code <<-EOS
      require 'rubygems'

      unless File.exist?("#{params[:name]}/config/newrelic.yml")
          puts "!!! newrelic.yml not found. Not notifying New Relic of the deploy !!!"
          exit 0
      end

      ## When new relic is loaded it automagically loads up its configuration file
      ## And sets the config[:environment]. We are injecting the path to the configuration
      ## file and the environment via ENV variables.
      ENV['APP_ROOT'] = "#{params[:name]}"
      ENV['RAILS_ENV'] = "#{params[:environment]}"
      require 'newrelic_rpm'
      require 'new_relic/command'

      config = NewRelic::Control.instance
      revision = `git rev-parse HEAD`.chomp
      deployment = NewRelic::Command::Deployments.new({:revision  => revision, :user => 'chef'})
      print "New Relic : "
      deployment.run
    EOS
  end

end