# File lib/memcache.rb, line 349
  def self.init(yaml_file = nil)
    yaml_file = File.join(Rails.root, 'config', 'memcached.yml')

    if File.exists?(yaml_file)
      yaml = YAML.load_file(yaml_file)
      defaults = (yaml.delete('defaults') || {}).symbolize_keys
      config   = (yaml[Rails.env] || {}).symbolize_keys

      if not config.empty? and not config[:disabled]
        if config[:servers]
          opts = defaults.merge(config.symbolize_keys)
          Object.const_set('CACHE', Memcache.new(opts))
        else
          config.each do |connection, opts|
            opts = defaults.merge(opts.symbolize_keys)
            Memcache.pool[connection] = Memcache.new(opts)
          end
        end
      end
    end
  end