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# Author: Pieter Noordhuis
# Description: Simple demo to showcase Redis PubSub with EventMachine
#
# Update 7 Oct 2010:
# - This example does *not* appear to work with Chrome >=6.0. Apparently,
# the WebSocket protocol implementation in the cramp gem does not work
# well with Chrome's (newer) WebSocket implementation.
#
# Requirements:
# - rubygems: eventmachine, thin, cramp, sinatra, yajl-ruby
@bdotdub
bdotdub / redis.markdown
Created November 24, 2010 22:18
Running redis using upstart on Ubuntu

Running redis using upstart on Ubuntu

I've been trying to understand how to setup systems from the ground up on Ubuntu. I just installed redis onto the box and here's how I did it and some things to look out for.

To install:

@kitek
kitek / gist:1579117
Created January 8, 2012 17:50
NodeJS create md5 hash from string
var data = "do shash'owania";
var crypto = require('crypto');
crypto.createHash('md5').update(data).digest("hex");
@caniszczyk
caniszczyk / clone-all-twitter-github-repos.sh
Created October 9, 2012 04:25
Clone all repos from a GitHub organization
curl -s https://api.github.com/orgs/twitter/repos?per_page=200 | ruby -rubygems -e 'require "json"; JSON.load(STDIN.read).each { |repo| %x[git clone #{repo["ssh_url"]} ]}'
@karlstolley
karlstolley / rgba.scss
Created October 19, 2012 03:04
RGB/RGBa in Sass
// Declare the color as RGB; SASS will treat this as hex
$green: rgb(27,224,63);
// Declare an alpha
$alpha: .5;
// Declare another color variable as a color with an alpha
$greenAlpha: rgba($green, $alpha);
body {
/* As RGB (which SASS actually ouputs as HEX) */
background: $green;
@jayj
jayj / flexbox.less
Last active November 20, 2023 04:51
CSS3 Flexbox - LESS Mixins
// --------------------------------------------------
// Flexbox LESS mixins
// The spec: http://www.w3.org/TR/css3-flexbox
// --------------------------------------------------
// Flexbox display
// flex or inline-flex
.flex-display(@display: flex) {
display: ~"-webkit-@{display}";
display: ~"-ms-@{display}box"; // IE10 uses -ms-flexbox
@nikmartin
nikmartin / A: Secure Sessions Howto
Last active April 28, 2024 05:17
Secure sessions with Node.js, Express.js, and NginX as an SSL Proxy
Secure sessions are easy, but not very well documented.
Here's a recipe for secure sessions in Node.js when NginX is used as an SSL proxy:
The desired configuration for using NginX as an SSL proxy is to offload SSL processing
and to put a hardened web server in front of your Node.js application, like:
[NODE.JS APP] <- HTTP -> [NginX] <- HTTPS -> [PUBLIC INTERNET] <-> [CLIENT]
Edit for express 4.X and >: Express no longer uses Connect as its middleware framework, it implements its own now.
@justjavac
justjavac / img2txt.js
Last active December 9, 2021 06:46
img2txt:基于canvas的图片转字符画工具
var cv = document.getElementById('cv');
var c = cv.getContext('2d');
var txtDiv = document.getElementById('txt');
var fileBtn = document.getElementById("up-button");
var img = new Image();
img.src = 'a.jpg';
img.onload = init; // 图片加载完开始转换
fileBtn.onchange = getImg;
// 根据灰度生成相应字符
@yocontra
yocontra / gulpfile.js
Last active January 1, 2016 00:29
gulpfile for a simple livereload static web server. this is a proof of concept that uses no plugins to do the work. obviously there are plugins that eliminate almost all of this code but i thought it would be a fun demonstration. this will trigger livereload any time any file is modified in the current working directory. it also serves the curre…
var gulp = require('gulp');
var gutil = require('gulp-util');
var express = require('express');
var path = require('path');
var tinylr = require('tiny-lr');
var createServers = function(port, lrport) {
var lr = tinylr();
lr.listen(lrport, function() {
gutil.log('LR Listening on', lrport);
// --------------------------------------------------
// Flexbox LESS mixins
// The spec: http://www.w3.org/TR/css3-flexbox
// --------------------------------------------------
// Flexbox display
// flex or inline-flex
.flex-display(@display: flex) {
display: ~"-webkit-@{display}";
display: ~"-moz-@{display}";