class Redis

def info(cmd = nil)
  synchronize do |client|
    client.call([:info, cmd].compact) do |reply|
      if reply.is_a?(String)
        reply = HashifyInfo.call(reply)
        if cmd && cmd.to_s == "commandstats"
          # Extract nested hashes for INFO COMMANDSTATS
          reply = Hash[reply.map do |k, v|
            v = v.split(",").map { |e| e.split("=") }
            [k[/^cmdstat_(.*)$/, 1], Hash[v]]
          end]
        end
      end
      reply
    end
  end
end