resque.rb

namespace :resque do
  task :setup => :environment do
    # generic worker setup, e.g. Hoptoad for failed jobs
  end

  #  QUIT - Wait for child to finish processing then exit
  #  TERM / INT - Immediately kill child then exit
  #  USR1 - Immediately kill child but don't exit
  #  USR2 - Don't start to process any new jobs
  #  CONT - Start to process new jobs again after a USR2
  desc 'Stop Resque workers'
  task :stop => :setup do
    pids = Array.new

    Resque.workers.each do |worker|
      pids << worker.to_s.split(/:/).second
    end

    signal = ENV['SIGNAL'] || 'QUIT'
    if pids.size > 0
      system("kill -#{signal} #{pids.join(' ')}")
    end
  end

  desc 'Start Resque workers'
  task :start => :setup do
    RESQUE_WORKERS.each do |queue, count|
      args = []
      args << "RAILS_ENV=#{Rails.env}"
      args << "COUNT=#{count}"
      args << "QUEUE=#{queue}"
      args << "VERBOSE=1"
      args << "PIDFILE=tmp/pids/resque_worker_#{queue}.pid"

      log = "log/resque_worker_#{queue}.log"

      system("nohup rake resque:workers #{args.join(' ')} &>#{log} &")
    end
  end

  task :restart => :environment do
    Rake::Task["resque:stop"].invoke
    Rake::Task["resque:start"].invoke
  end
  
end