An alpha-quality redis client for Minecraft (Opencomputers mod).

Installing

1. Clone this repo somewhere. Copy redis.lua and url.lua to /usr/lib inside your Minecraft computer. I will look into getting this repo registered with oppm etc.

2. Unblacklist your server if necessary. OpenComputers.cfg in your minecraft config folder disallows connections to localhost and common LAN addresses.

Example Usage

local redis = require("redis")
client = redis.connection('opencomputers://localhost:6379')

-- change databases
client:select(11)

-- basic usage
client:set("redis", "awesome")

client:lpush("items", "pickaxe", "dirt")
items = client:lrange("items", 0, 2)
for k, v in pairs( items ) do
   print(k, v)
end
-- { "dirt", "pickaxe" }


-- hash types
client:hset("reactor", "energy", "630744")
-- compound keys for representing something like the position of rods
client:hset("reactor", "rod:1", "50")
client:hset("reactor", "rod:2", "75")
client:hset("reactor", "rod:3", "100")

number_of_control_rods = 3
for i=1, number_of_control_rods, 1 do
  print(client:hget("reactor", "rod:"..i ))
end

Gotchas

If you try to call client.set, you'll get a network error:

redis.lua:419: attempt to index field 'network' (a nil value)

That's because this client doesn't support multi-get statements yet. It thinks you are passing a function / block. So don't use client.set. Use client:set. Only simple commands are supported right now because of a limitation of OC sockets.

Other Cool Things

I'm currently using redis as a real-world storage place just to get data out of minecraft. From there, I'm pushing it to statsd. See the sister project minecraft_metrics for details on that.

Credits

Thank you to Daniele Alessandri for the real lua redis client.