Skip to content

Instantly share code, notes, and snippets.

View linhmtran168's full-sized avatar
🦖

Linh M. Tran linhmtran168

🦖
View GitHub Profile

Creating a redis Module in 15 lines of code!

A quick guide to write a very very simple "ECHO" style module to redis and load it. It's not really useful of course, but the idea is to illustrate how little boilerplate it takes.

Step 1: open your favorite editor and write/paste the following code in a file called module.c

#include "redismodule.h"
/* ECHO <string> - Echo back a string sent from the client */
int EchoCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {

Getting Started in Scala

This is my attempt to give Scala newcomers a quick-and-easy rundown to the prerequisite steps they need to a) try Scala, and b) get a standard project up and running on their machine. I'm not going to talk about the language at all; there are plenty of better resources a google search away. This is just focused on the prerequisite tooling and machine setup. I will not be assuming you have any background in JVM languages. So if you're coming from Python, Ruby, JavaScript, Haskell, or anywhere…  I hope to present the information you need without assuming anything.

Disclaimer It has been over a decade since I was new to Scala, and when I was new to Scala, I was coming from a Java and Ruby background. This has probably caused me to unknowingly make some assumptions. Please feel free to call me out in comments/tweets!

One assumption I'm knowingly making is that you're on a Unix-like platform. Sorry, Windows users.

Getting the JVM

@netmute
netmute / README.md
Last active October 27, 2022 13:22
Game of Life

Game of Life

An implementation of Conway's Game of Life in 140 characters of Ruby.

Author

Created by Simon Ernst (@sier).

@wxmn
wxmn / redis_helper.rb
Created March 31, 2011 13:23
How to Build a Fast News Feed in Redis and Rails
module RedisHelper
# decode Redis value back to Ruby object
def self.decode(json)
self.new(ActiveSupport::JSON.decode(json)["#{self.name.downcase}"])
end
# encode Ruby object for Redis
def encoded
self.updated_at = nil
self.to_json
@chrisb
chrisb / gist:4d6a09c6cc1ca2e1b14e
Last active November 25, 2022 04:15
Homebrew, Ruby, and Rails on OS X 10.10

OS X 10.10 Guide

Here's what I did to get things working.

1. Install Xcode 6

Yep, over at: https://developer.apple.com

2. Install the Command Line Tools (CLT)

# coding=UTF-8
from __future__ import division
import re
# This is a naive text summarization algorithm
# Created by Shlomi Babluki
# April, 2013
class SummaryTool(object):
@fernandoaleman
fernandoaleman / Linux Static IP
Created March 23, 2012 16:20
How To Configure Static IP On CentOS 6
## Configure eth0
#
# vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
NM_CONTROLLED="yes"
ONBOOT=yes
HWADDR=A4:BA:DB:37:F1:04
TYPE=Ethernet
BOOTPROTO=static
@chrisbloom7
chrisbloom7 / README.md
Created June 6, 2011 07:16
A cheap knock off of the default validates_length_of validator, but checks the filesize of a Carrierwave attachment

Note that this validation runs both after the file is uploaded and after CarrierWave has processed the image. If your base uploader includes a filter to resize the image then the validation will be run against the resized image, not the original one that was uploaded. If this causes a problem for you, then you should avoid using a resizing filter on the base uploader and put any specific size requirements in a version instead.

So instead of this:

require 'carrierwave/processing/mini_magick'

{{-- Define all our servers --}}
@servers(['staging' => '', 'production' => ''])
@setup
{{-- The timezone your servers run in --}}
$timezone = 'Europe/Amsterdam';
{{-- The base path where your deployments are sitting --}}
$path = '/var/www/site.com/htdocs';