Mitchell Porter mitchellporter

This describes the workflow to use Heroku as a staging environment. It assumes you already have an existing heroku app in production.

# rename your git remote heroku to something else like production
git remote rename heroku production

# so now you will push as: git push production master

# create the staging app
heroku apps:create staging-appname

Fixing npm On Mac OS X for Homebrew Users

Installing node through Homebrew can cause problems with npm for globally installed packages. To fix it quickly, use the solution below. An explanation is also included at the end of this document.

Solution

This solution fixes the error caused by trying to run npm update npm -g. Once you're finished, you also won't need to use sudo to install npm modules globally.

Before you start, make a note of any globally installed npm packages. These instructions will have you remove all of those packages. After you're finished you'll need to re-install them.

"How do I get started with Node?" is a commonly heard question in #Node.js. This gist is an attempt to compile some of the answers to that question.

And if this list didn't quite answer your questions, I'm available for tutoring and code review! A donation is also welcome :)

Javascript refresher

Especially if you normally use a different language, or you only use Javascript occasionally, it's easy to misunderstand some of the aspects of the language.

These links will help you refresh your knowledge of JS, and make sure that you understand the OOP model correctly.

	#!/usr/bin/env xcrun swift

	import Foundation

	public typealias CharactersArray = [Character]
	public typealias CharactersHash = [CharactersGroup : CharactersArray]

	public enum CharactersGroup {
	case Letters
	case Numbers

	var db = mongoose.connect('mongodb://localhost:27017/DB');

	// In middleware
	app.use(function (req, res, next) {

	// action after response
	var afterResponse = function() {
	logger.info({req: req}, "End request");

	// any other clean ups

	// Make sure you added pm2 as a dependency in your package.json
	// Then in your Procfile, do a simple `node bootstrap.js`

	var pm2 = require('pm2');

	var MACHINE_NAME = 'hk1';
	var PRIVATE_KEY = 'z1ormi9vomgq66';
	var PUBLIC_KEY = 'oa0m7nuhdfibi16';

	var instances = process.env.WEB_CONCURRENCY \|\| -1; // Set by Heroku or -1 to scale to max cpu core -1

	"use strict"
	var Promise = function () {
	this.state = 'pending'
	this.thenables = []
	}

	Promise.prototype.resolve = function (value) {
	if (this.state != 'pending') return

	this.state = 'fulfilled'

	# first:
	lsbom -f -l -s -pf /var/db/receipts/org.nodejs.pkg.bom \| while read f; do sudo rm /usr/local/${f}; done
	sudo rm -rf /usr/local/lib/node /usr/local/lib/node_modules /var/db/receipts/org.nodejs.*

	# To recap, the best way (I've found) to completely uninstall node + npm is to do the following:

	# go to /usr/local/lib and delete any node and node_modules
	cd /usr/local/lib
	sudo rm -rf node*

	#!/bin/zsh

	cd "${0%/*}/../conf/url/"
	for user in $(cat ../users.list); do
	TWEETS=$(t search timeline -d -l user "#Periscope:" \| grep -v " RT @")
	OLDIFS=$IFS; IFS=$'\n'
	for tweet in $(echo $TWEETS); do
	DATE=$(echo $tweet \| cut -d\ -f2-6)
	OLD_LC_ALL=$LC_ALL; export LC_ALL="POSIX"
	SEC=$(($(date +%s) - $(date -j -f ' %b %e %H:%M ' "$DATE" +%s)))

	# note these instructions are as of Dec 28, 2015

	# the vlc and vlckit repos are super complex and have thousands of dependencies from everywhere on the internet.
	# so, you'll need to mess with things a bit

	git clone http://code.videolan.org/videolan/VLCKit.git
	cd VLCKit

	./buildMobileVLCKit.sh -t