clear all resque tasks from redis

resque.rake

desc "Clear pending tasks"
task "resque:clear" => :environment do
  queues = Resque.queues
  queues.each do |queue_name|
    puts "Clearing #{queue_name}..."
    Resque.redis.del "queue:#{queue_name}"
  end

  puts "Clearing delayed..." # in case of scheduler - doesn't break if no scheduler module is installed
  Resque.redis.keys("delayed:*").each do |key|
    Resque.redis.del "#{key}"
  end
  Resque.redis.del "delayed_queue_schedule"

  puts "Clearing stats..."
  Resque.redis.set "stat:failed", 0
  Resque.redis.set "stat:processed", 0
end