Andrew Burnes apburnes

OBSOLETE

This entire guide is based on an old version of Homebrew/Node and no longer applies. It was only ever intended to fix a specific error message which has since been fixed. I've kept it here for historical purposes, but it should no longer be used. Homebrew maintainers have fixed things and the options mentioned don't exist and won't work.

I still believe it is better to manually install npm separately since having a generic package manager maintain another package manager is a bad idea, but the instructions below don't explain how to do that.

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.

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

from streams session

end-of-stream - specify a callback to be called when a stream ends (which is surpsingly hard to get right)
duplexify - compose a Duplex stream from a Readable and a Writable stream
pump - pipe streams together and close all of them if one of them closes
pumpify - combine an array of streams into a single duplex stream using pump and duplexify
through2 - tools for making Transform streams
from2 - tools for making Readable streams

from "participatory modules" session

	var application_root = __dirname,
	express = require("express"),
	path = require("path"),
	mongoose = require('mongoose');

	var app = express.createServer();

	// database

	mongoose.connect('mongodb://localhost/ecomm_database');

	/*
	* Can be tested with the following:
	*
	* var heap = new AEROTWIST.Heap();
	*
	* for(var i = 10; i > 0; i--) {
	* heap.add(Math.round(Math.random() * 100));
	* }
	*
	* for(var i = 10; i > 0; i--) {

	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
	<html>
	<head>
	<link rel="stylesheet" href="http://code.jquery.com/qunit/git/qunit.css" type="text/css" media="screen" />

	<!-- when.js Promises implementation -->
	<script src="https://raw.github.com/cujojs/when/master/when.js"></script>

	<!-- Unit testing and mocking framework -->
	<script type="text/javascript" src="http://code.jquery.com/qunit/git/qunit.js"></script>

	#!/bin/sh
	export PATH=/usr/local/bin:$PATH;

	yum update
	yum install docker -y
	service docker start
	# Docker login notes:
	# - For no email, just put one blank space.
	# - Also the private repo protocol and version are needed for docker
	# to properly setup the .dockercfg file to work with compose

	// Written by Paul Kaplan

	var BinaryStlWriter = (function() {
	var that = {};

	var writeVector = function(dataview, offset, vector, isLittleEndian) {
	offset = writeFloat(dataview, offset, vector.x, isLittleEndian);
	offset = writeFloat(dataview, offset, vector.y, isLittleEndian);
	return writeFloat(dataview, offset, vector.z, isLittleEndian);
	};

	#!/bin/bash

	function s3du(){
	bucket=`cut -d/ -f3 <<< $1`
	prefix=`awk -F/ '{for (i=4; i<NF; i++) printf $i"/"; print $NF}' <<< $1`
	aws s3api list-objects --bucket $bucket --prefix=$prefix --output json --query '[sum(Contents[].Size), length(Contents[])]' \| jq '. \|{ size:.[0],num_objects: .[1]}'
	}

	s3du $1;