redis stuff

output.md

127.0.0.1:6379> HGETALL checker:DEADC0DE:length
1) "3"
2) "3"
3) "6"
4) "3"
5) "9"
6) "1"
7) "5"
8) "2"

127.0.0.1:6379> HGETALL checker:DEADC0DE:colors
 1) "abc"
 2) "1"
 3) "red"
 4) "2"
 5) "orange"
 6) "2"
 7) "purple"
 8) "1"
 9) "notcolour"
10) "1"
11) "black"
12) "2"

package.json

{
  "name": "redis_script_test",
  "version": "0.0.0",
  "description": "ERROR: No README.md file found!",
  "main": "runscript.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": "",
  "author": "Adam Baldwin",
  "license": "MIT",
  "dependencies": {
    "hiredis": "^0.1.17",
    "optimist": "~0.3.5",
    "redis": "^0.12.1"
  }
}

run.sh

#!/bin/bash

node runscript.js ./test.lua 0 '["abc","red","red","orange","orange","purple","notcolour","black","black"]'

runscript.js

var fs = require('fs'),
    redis = require('redis'),
    argv = require('optimist').usage("$0 filename.lua [#keys] [arg1] ...")
            .describe('d', 'show redis client debug')
            .demand(1).argv;
    client = redis.createClient('6379', '127.0.0.1');

if (argv.d) {
    redis.debug_mode = true;
}

var script = fs.readFileSync(argv._[0]);
argv._[0] = script.toString();

if (argv._.length === 1) {
    argv._.push(0);
}

client.send_command('EVAL', argv._, function (err, reply) {
    console.log(arguments);
    process.exit();
});

test.lua

local checker_id = "DEADC0DE";
local input = ARGV[1];
local json = cjson.decode(input);

for i,color in ipairs(json) do

redis.call('HINCRBY', 'checker:' .. checker_id .. ':colors', color, 1);
redis.call('HINCRBY', 'checker:' .. checker_id .. ':length', string.len(color), 1);

end
return;