rares

# Parallel map
# Originally from http://project.ioni.st/post/2332#snippet_2332
class Array
  def pmap
    threads = []
    0.upto(size - 1) do |n|
      threads << Thread.new do
        yield(at(n))
      end
    end

rares

module URI
  def self.parse_with_options(uri_str, opts = {})
    parsed_uri = self.parse(uri_str)
    sing = (class << parsed_uri; self end)
    sing.send :define_method, :options do
      opts
    end
    parsed_uri
  end
end

rares

# capistrano tip:
# log into target server for first time an type this:

ssh git@github.com

# this will allows capistrano to perform the clone without issue.

rares

require 'rubygems'
require 'xmpp4r-simple'
require 'pp'

im = Jabber::Simple.new("user", "password")
Jabber::debug = true

class Handler
	def on_message(message)
		puts message

rares

$:.unshift File.dirname(__FILE__) + "/lib" 
require "oauth/consumer"
require "pp"

consumer = OAuth::Consumer.new(
  "<consumer.key>",
  "<consumer.secret>",
  {
    :site => "http://api.netflix.com",
    :request_token_url => "https://api-user.netflix.com/oauth/request_token",

rares

rails_root = "/data/github/current"

20.times do |num|
  God.watch do |w|
    w.name     = "dj-#{num}"
    w.group    = 'dj'
    w.interval = 30.seconds
    w.start    = "rake -f #{rails_root}/Rakefile production jobs:work"

    w.uid = 'git'

rares

Lessons Learned

Be Confident

Tests build confidence. Write 'em. They'll save your ass, and they'll let you take a chainsaw to your code without being afraid of unintended consequences.

Be Lazy

rares

# 1) Point *.example.com in your DNS setup to your server.
#
# 2) Setup an Apache vhost to catch the star pointer:
#
# <VirtualHost *:80>
#   ServerName *.example.com
# </VirtualHost>
#
# 3) Set the current account from the subdomain
class ApplicationController < ActionController::Base

rares

# at the very least, use inheritance!

class Object
  alias_method :try, :send
end

class NilClass
  def try(*args)
    nil
  end

rares

    desc "Do rolling restarts of the Mongrel servers in pairs, at 90s intervals."
    task :rolling do
      servers = []

      roles[:app].each do |server|
        next unless server.options.fetch(:listener, true)
        servers << [] if servers.first.nil? || servers.last.length > 1
        servers.last << server.host
      end