zspine

MollsReis

require 'mini_magick'

class ImageResizer

  attr_accessor :height, :width, :padding, :stretch, :grayscale

  def initialize(path)
    @image = MiniMagick::Image.open(path)
  end

g3d

#Mac OS X

Mensch coding font

Apps

• Webkit
• Chrome
• Firefox

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

khoan

# config/initializers/devise.rb
#
# We now ask Warden to use :vip_authenticatable when authenticating.
#
# Also, we instruct Warden to load User from session without any default scoping.
#
Devise.setup do |config|
  config.warden do |manager|
    require Rails.root+'lib/vip_authenticable'
    manager.default_strategies(scope: :user).unshift :vip_authenticatable

danopia

#!/usr/bin/env ruby

$server   = 'irc.stripe.com'
$channel  = '#level8'
$nick     = 'FlagBot'
$chanfile = '~/.xchat2/xchatlogs/NETWORK-\#level8.log'
$sshpath  = '[email protected]'
$command  = 'ruby bot.rb'
$store    = './flags.rb'

mdellanoce

(function($) {
  function parseImagesFromCSS(doc) {
    var i, j,
      rule,
      image,
      pattern = /url\((.*)\)/,
      properties = ['background-image', '-webkit-border-image'],
      images = {};

    if (doc.styleSheets) {

bilke

require 'rubygems'
require "mongo_mapper"

regex_match = /.*:\/\/(.*):(.*)@(.*):(.*)\//.match(ENV['MONGOLAB_URI'])
host = regex_match[3]
port = regex_match[4]
db_name = regex_match[1]
pw = regex_match[2]

MongoMapper.connection = Mongo::Connection.new(host, port)

cyx

check process redis-server
    with pidfile "/var/run/redis.pid"
    start program = "/etc/init.d/redis-server start"
    stop program = "/etc/init.d/redis-server stop"
    if 2 restarts within 3 cycles then timeout
    if totalmem > 100 Mb then alert
    if children > 255 for 5 cycles then stop
    if cpu usage > 95% for 3 cycles then restart
    if failed host 127.0.0.1 port 6379 then restart
    if 5 restarts within 5 cycles then timeout

joho

Steps to install and run PostgreSQL 9.2 using Homebrew (Mac OS X)
(if you aren't using version 9.1.5, change line 6 with the correct version)

1. launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
2. mv /usr/local/var/postgres /usr/local/var/postgres91
3. brew update
4. brew upgrade postgresql
5. initdb /usr/local/var/postgres -E utf8
6. pg_upgrade -b /usr/local/Cellar/postgresql/9.1.5/bin -B /usr/local/Cellar/postgresql/9.2.0/bin -d /usr/local/var/postgres91 -D /usr/local/var/postgres
7. cp /usr/local/Cellar/postgresql/9.2.0/homebrew.mxcl.postgresql.plist ~/Library/LaunchAgents/