Script to start/stop delayed_job

delayed_job.rb

#!/usr/bin/env ruby
# -*- ruby -*-
require 'rubygems'
require 'daemon_spawn'
require File.expand_path(File.join(File.dirname(__FILE__), '..', 'config', 'environment'))

class DelayedJobWorker < DaemonSpawn::Base
  def start(args)
    ENV['RAILS_ENV'] ||= args.first || 'development'
    Dir.chdir Rails.root

    Delayed::Worker.new.start
  end

  def stop
    system("kill `cat #{Rails.root}/tmp/pids/delayed_job.pid`")
  end
end

DelayedJobWorker.spawn!(:log_file => File.join(Rails.root, "log", "delayed_job.log"),
                        :pid_file => File.join(Rails.root, 'tmp', 'pids', 'delayed_job.pid'),
                        :sync_log => true,
                        :working_dir => Rails.root)

Make Rails 3 compatible