Luca Colonnello LucaColonnello

OS X 10.11 (El Capitan) / Node.js and io.js Developer Environment

Custom recipe to get OS X 10.11 El Capitan running from scratch with useful applications and Node.js Developer environment. I use this gist to keep track of the important software and steps required to have a functioning system after fresh install.

How Fast is Git?

The web is full of benchmarks showing the supernatural speed of Git even with very big repositories, but unfortunately they use the wrong variable. Size is not important, but the number of files in the repository really is!

Why is that? Well, that's because Git works in a very different way compared to Synergy. You don't have to checkout a file in order to edit it; Git will do that for you automatically. But at what price?

The price is that for every Git operation that requires to know which files changed (git status, git commmit, etc etc) an lstat() call will be executed for every single file

Wow! So how does that perform on a fairly large repository? Let's find out! For this example I will use an example project, which has 19384 files in 1326 folders.

List of countries

This list served quite some people but someone else did a better job since.

Go to https://github.com/umpirsky/country-list for a list in your language and format.

List of nationalities

I've also compiled a list of nationalities

	// require() some stuff from npm (like you were using browserify)
	// and then hit Run Code to run it on the right

	var patchHTML = require('html2idom').patchHTML;

	function cond( cond, resTrue, resFalse ) {
	if(cond){
	return resTrue;
	} else {
	return resFalse;

	// http://stackoverflow.com/questions/6157929/how-to-simulate-a-mouse-click-using-javascript

	function simulate(element, eventName)
	{
	var options = extend(defaultOptions, arguments[2] \|\| {});
	var oEvent, eventType = null;

	for (var name in eventMatchers)
	{
	if (eventMatchers[name].test(eventName)) { eventType = name; break; }

	//PhantomJS http://phantomjs.org/ based web crawler Anton Ivanov [email protected] 2012
	//UPDATE: This gist has been made into a Node.js module and now can be installed with "npm install js-crawler"
	//the Node.js version does not use Phantom.JS, but the API available to the client is similar to the present gist

	(function(host) {

	function Crawler() {
	this.visitedURLs = {};
	};

	This example expects to have d3.min.js and d3.layout.min.js in the same directory as pie.js and pie_serv.js.

	Run with node pie_serv.js