class Redis

def info(cmd = nil)
  synchronize do |client|
    client.call [:info, cmd].compact do |reply|
      if reply.kind_of?(String)
        reply = Hash[reply.split("\r\n").map do |line|
          line.split(":", 2) unless line =~ /^(#|$)/
        end]
        if cmd && cmd.to_s == "commandstats"
          # Extract nested hashes for INFO COMMANDSTATS
          reply = Hash[reply.map do |k, v|
            [k[/^cmdstat_(.*)$/, 1], Hash[*v.split(/,|=/)]]
          end]
        end
      end
      reply
    end
  end
end