gistfile1.rb

module ShitCan
  require 'memcached'

  def self.load(con_path='localhost:11211')
    @cache = Memcached.new(con_path)
  end

  def self.cache
    if @cache
      return @cache
    else
      raise ShitCan, 'NO CAN HERE!'
    end
  end

  def self.set key, value=nil, ttl=600
      value = yield if value.nil?
      cache.set key, value
  end

  def self.get *args
    cache.get *args
  end

  def self.get_or_set key, value=nil
    if val = exists?(key)
      val
    else
      set key, (value || yield)
    end
  end

  def self.skip_if_exists key
    yield unless exists? key
  end

  def self.exists? key
    begin
      return get key
    rescue
      return false
    end
  end
end

SHITCAN ? ShitCan.load("#{SHITCAN[:path]}:#{SHITCAN[:port]}") : ShitCan.load