marcgg

# Matches patterns such as:
#    https://www.facebook.com/my_page_id => my_page_id
#    http://www.facebook.com/my_page_id => my_page_id
#    http://www.facebook.com/#!/my_page_id => my_page_id
#    http://www.facebook.com/pages/Paris-France/Vanity-Url/123456?v=app_555 => 123456
#    http://www.facebook.com/pages/Vanity-Url/45678 => 45678
#    http://www.facebook.com/#!/page_with_1_number => page_with_1_number
#    http://www.facebook.com/bounce_page#!/pages/Vanity-Url/45678 => 45678
#    http://www.facebook.com/bounce_page#!/my_page_id?v=app_166292090072334 => my_page_id
#    http://www.facebook.com/my.page.is.great => my.page.is.great

erichurst

# MySQL.  Versions 4.1 and 5.0 are recommended.
#
# Install the MySQL driver:
#   gem install mysql2
#
# And be sure to use new-style password hashing:
#   http://dev.mysql.com/doc/refman/5.0/en/old-client.html
development:
  adapter: mysql2
  encoding: utf8

fallwith

$> launchctl unload -w ~/Library/LaunchAgents/com.mysql.mysqld.plist

$> /usr/local/Cellar/mysql/5.5.9/bin/mysqld --basedir=/usr/local/Cellar/mysql/5.5.9 --datadir=/usr/local/Cellar/mysql/5.5.9/data --plugin-dir=/usr/local/Cellar/mysql/5.5.9/lib/plugin --log-error=/usr/local/Cellar/mysql/5.5.9/data/errors.err --pid-file=/usr/local/Cellar/mysql/5.5.9/data/pidfile.pid --skip-grant-tables

$> mysql

mysql> UPDATE mysql.user SET Password=PASSWORD('root_password') WHERE User='root';
mysql> FLUSH PRIVILEGES;

$> kill `cat /usr/local/Cellar/mysql/5.5.9/data/pidfile.pid`

avdi

module DeepFetch
  def deep_fetch(*keys, &fetch_default)
    throw_fetch_default = fetch_default && lambda {|key, coll|
      args = [key, coll]
      # only provide extra block args if requested
      args = args.slice(0, fetch_default.arity) if fetch_default.arity >= 0
      # If we need the default, we need to stop processing the loop immediately
      throw :df_value, fetch_default.call(*args)
    }
    catch(:df_value){

mattwynne

# usage:
# it "should return a result of 5" do
#   eventually { long_running_thing.result.should eq(5) }
# end
module AsyncHelper
  def eventually(:options = {})
    timeout = options[:timeout] || 2
    interval = options[:interval] || 0.1
    time_limit = Time.now + timeout
    loop do

jexchan

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"

MicahElliott

Setting up and installing rbenv, ruby-build, rubies, rbenv-gemset, and bundler

This guide enables you to install (ruby-build) and use (rbenv) multiple versions of ruby, isolate project gems (gemsets and/or bundler), and automatically use appropriate combinations of rubies and gems.

TL;DR Demo

# Ensure system is in ship-shape.

aptitude install git zsh libssl-dev zlib1g-dev libreadline-dev libyaml-dev

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

chrisle

module CapybaraWithPhantomJs
  include Capybara

  # Create a new PhantomJS session in Capybara
  def new_session

    # Register PhantomJS (aka poltergeist) as the driver to use
    Capybara.register_driver :poltergeist do |app|
      Capybara::Poltergeist::Driver.new(app)
    end