TheDeveloper

/**
* npm install --save lodash redis node-redis-scripty
*
* Usage:
*   let hmsetex = require('./hmsetex.js')
*   let key = 'your-key';
*   let fields = { some_field: 'test', another_field: 'foo' };
*   hmsetex(key, fields).then(handleResult).catch(handleError);
*/
const _ = require('lodash');

TheDeveloper

local key = KEYS[1]
local args = ARGV
local call = redis.call

if call("EXISTS", key) == 0 then
  return nil
end

return call("HMSET", key, unpack(args))

TheDeveloper

// usage: promisify(function([args..., cb]) { /* do stuff with args then cb */ })()
exports.promisify = function(fn) {
  return function(...args) {
    return new Promise((resolve, reject) => {
      fn(...args, (err, result) => {
        if (err) return reject(err);
        resolve(result);
      });
    });
  };

TheDeveloper

/*
  Migrate documents from one elasticsearch endpoint to another.

  To squeeze out extra performance, disable index refresh and replicas on the target cluster:

  curl -XPUT 'http://elasticsearch:9200/_settings' -d '{
    "index" : {
        "refresh_interval" : "-1",
        "number_of_replicas": "0"
    }

TheDeveloper

/**
 * A Connection handler for Amazon ES.
 *
 * Uses the aws-sdk to make signed requests to an Amazon ES endpoint.
 * Define the Amazon ES config and the connection handler
 * in the client configuration:
 *
 * var es = require('elasticsearch').Client({
 *  hosts: 'https://amazon-es-host.us-east-1.es.amazonaws.com',
 *  connectionClass: require('http-aws-es'),

TheDeveloper

/**
 * A Connection handler for Amazon ES.
 *
 * Uses the aws-sdk to make signed requests to an Amazon ES endpoint.
 * Define the Amazon ES config and the connection handler
 * in the client configuration:
 *
 * var es = require('elasticsearch').Client({
 *  hosts: 'https://amazon-es-host.us-east-1.es.amazonaws.com',
 *  connectionClass: require('http-aws-es'),

TheDeveloper

--
-- Set a lock
--
-- KEYS[1]   - key
-- KEYS[2]   - ttl in ms
-- KEYS[3]   - lock content
local key     = KEYS[1]
local ttl     = KEYS[2]
local content = KEYS[3]

TheDeveloper

# Sweep a git submodule out of the working copy
remove_submodule() {
  SMD_PATH=$1
  if [ ! -d $SMD_PATH ]; then
    echo "$SMD_PATH does not exist"
    return 1
  fi
 
  git config -f .git/config --remove-section submodule.$SMD_PATH
  git config -f .gitmodules --remove-section submodule.$SMD_PATH

TheDeveloper

# View list of connections and their states
netstat -tan | grep ':80 ' | awk '{print $6}' | sort | uniq -c

# List all connections and timers
ss -rota | less

TheDeveloper

local keys 
keys = redis.call('keys', KEYS[1])
local ret=0
local type
for k,v in pairs(keys) do
  redis.call('del', v)
  ret = ret+1
end
return ret