pnc

Using OTP's observer (appmon replacement) remotely

$ ssh remote-host "epmd -names"
epmd: up and running on port 4369 with data:
name some_node at port 58769

Note the running on port for epmd itself and the port of the node you're interested in debugging. Reconnect to the remote host with these ports forwarded:

$ ssh -L 4369:localhost:4369 -L 58769:localhost:58769 remote-host

sogko

'use strict';

// simple express server
var express = require('express');
var app = express();
var router = express.Router();

app.use(express.static('public'));
app.get('/', function(req, res) {
    res.sendfile('./public/index.html');

dstroot

/**
 * World's simplest express server
 * - used to serve index.html from /public
 */

var express = require('express');
var serveStatic = require('serve-static');
var app = express();

app.use(serveStatic(__dirname + '/public'));

hkhamm

Installing Cassandra on Mac OS X

Install Homebrew

Homebrew is a great little package manager for OS X. If you haven't already, installing it is pretty easy:

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

mveytsman

enum BinaryTree {
    Node(int, Box<BinaryTree>, Box<BinaryTree>),
    Leaf
}

fn insert(tree:Box<BinaryTree>, value:int) -> Box<BinaryTree> {
    return box match (*tree) {
        Leaf => Node(value, box Leaf, box Leaf),
        Node(i, left, right) => if value < i {
            Node(i, insert(left, value), right)

jdx

// This script will boot app.js with the number of workers
// specified in WORKER_COUNT.
//
// The master will respond to SIGHUP, which will trigger
// restarting all the workers and reloading the app.

var cluster = require('cluster');
var workerCount = process.env.WORKER_COUNT || 2;

// Defines what each worker needs to run

rodleviton

sudo -i
cd
apt-get install build-essential checkinstall && apt-get build-dep imagemagick -y
wget http://www.imagemagick.org/download/ImageMagick-6.8.7-7.tar.gz
tar xzvf ImageMagick-6.8.9-1.tar.gz
cd ImageMagick-6.8.9-1/
./configure --prefix=/opt/imagemagick-6.8 && make
checkinstall

kevinSuttle

var express = require('express');
var app = express();
var router = express.Router();
var hbs = require('hbs');

app.set('view engine', 'html');
app.engine('html', hbs.__express);

app.use(express.json());
app.use(express.urlencoded());

Hendrixer

var gulp        = require('gulp'),
    concat      = require('gulp-concat'),
    plumber     = require('gulp-plumber'),
    server      = require('tiny-lr')(),
    refresh     = require('gulp-livereload'),
    mocha       = require('gulp-mocha'),
    stylus      = require('gulp-stylus'),
    notify      = require('gulp-notify'),
    nodemon     = require('gulp-nodemon'),
    jshint      = require('gulp-jshint'),

dhh

class Ticket < ActiveRecord::Base
  belongs_to :grouper
  belongs_to :user

  validate :user_cant_be_blacklisted, on: :confirmation
  validate :user_cant_double_book, on: :confirmation

  validate :grouper_cant_be_full, on: :confirmation
  validate :grouper_cant_have_occurred, on: :confirmation