duncanbeevers’s gists

duncanbeevers / ArrayShuffle.js

Created July 20, 2010 00:10

Fisher-Yates shuffle

	Array.prototype.shuffle = function() {
	var i = this.length, k, e;
	while (--i) {
	k = Math.floor(Math.random() * i);
	if (k != i) {
	e = this[i];
	this[i] = this[k];
	this[k] = e;
	}
	}

duncanbeevers / xhr_test.html

Created May 20, 2010 18:01

	<!doctype html>
	<html>
	<head>
	<title>xhr status code test</title>
	<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/prototype/1.6.1.0/prototype.js"></script>
	<script type="text/javascript">
	//<![CDATA[
	document.observe('dom:loaded', function() {
	var body = $$('body')[0],
	template = new Template("<span class=\"script_example\"><pre class=\"body\">#{body}</pre><button class=\"trigger_script\">Execute</button></span>"),

duncanbeevers / compressed_rails_cache.rb

Created March 11, 2010 21:23

	class Memcached::CompressedRailsCache
	def initialize(rails_cache)
	@rails_cache = rails_cache
	end

	def get(key, raw = true) # raw is discarded
	v = @rails_cache.get(key)
	Marshal.load(Zlib::Inflate.inflate(v)) if v
	end

duncanbeevers / multi_part_rails_cache.rb

Created March 10, 2010 18:24

	class Memcached::MultiPartRailsCache
	MAX_KEY_LENGTH = 255 # Actually overshooting what the client will let you send through
	# but this means our chunk sizes will just a few bytes of headroom
	# as we split
	PART_SIZE = 1.megabyte - MAX_KEY_LENGTH

	def initialize(rails_cache)
	@rails_cache = rails_cache
	end

duncanbeevers / number_with_delimiter.js

Created March 4, 2010 17:34

Format numbers as comma-delimited strings

	//= require <prototype>
	// (2001000).withDelimiters(); // "2,001,000"
	// (9821).withDelimiters("_"); // "9_821"
	// (1221).withDelimiters(",", 100); // "12,21"

	Number.prototype.withDelimiters = function(s, k) {
	if (!s) s = ",";
	if (!k) k = 1000;
	var o = [],
	i = Math.floor(this);

duncanbeevers / db_uptodate.rake

Created February 22, 2010 23:49

Check whether migrations need to be run without requiring the whole app

	namespace :db do
	task :uptodate do
	if pending_migrations.blank?
	puts "Migrations are up-to-date"
	else
	puts "The following migrations are pending:"
	puts pending_migrations.map { \|mp\| "%s\t\t%s" % [ mp.version, mp.name ] }.join("\n")
	end
	end

duncanbeevers / mount_secure_volume.bash

Created February 19, 2010 00:07

Mount a secure DMG, execute the deploy_credentials.sh script within it to set up deploy environment, unmount dmg

	# Read Secure Volume credentials for deploy
	export VAULT_DMG="~/Sensitive.dmg"
	alias mount_sp="hdid $VAULT_DMG > /dev/null"
	alias sp="SECURE_MOUNT_INFO=\`hdid $VAULT_DMG\`; SECURE_MOUNT_DEVICE=\`echo -e \$SECURE_MOUNT_INFO \| cut -d ' ' -f1\`; SECURE_MOUNT_PATH=\`echo -e \$SECURE_MOUNT_INFO \| cut -d ' ' -f2\`; . \$SECURE_MOUNT_PATH/deploy_credentials.sh; hdiutil eject \$SECURE_MOUNT_DEVICE > /dev/null; unset SECURE_MOUNT_INFO SECURE_MOUNT_PATH SECURE_MOUNT_DEVICE"

duncanbeevers / recursively_symbolize_keys.rb

Created February 9, 2010 15:03 — forked from Sutto/gist:5471

	class Hash
	def recursively_stringify_keys
	recursively_xify_keys(:to_s, :recursively_stringify_keys)
	end

	def recursively_symbolize_keys
	recursively_xify_keys(:to_sym, :recursively_symbolize_keys)
	end

	private

duncanbeevers / time_conditionals.js

Created January 21, 2010 16:56

	Compare = function(fn1, fn2, i) {
	var time = function(fn) {
	var now = new Date();
	fn();
	return new Date() - now;
	},
	spinOn = function(fn, i) {
	return function() { for (var ii = i;ii;ii--) fn(); }
	},
	fn1_time = time(spinOn(fn1, i)),

duncanbeevers / hex2rgb.js

Created January 15, 2010 19:10

Convert a hex color string to an object representing the red, green, and blue parts

Duncan Beevers duncanbeevers