josevalim

defmodule FibAgent do 
  def start_link do
    cache = Enum.into([{0, 0}, {1, 1}], HashDict.new)
    Agent.start_link(fn -> cache end)
  end
 
  def fib(pid, n) when n >= 0 do
    Agent.get_and_update(pid, &do_fib(&1, n))
  end
 

josevalim

defmodule Exq.RouterPlug do
  import Plug.Conn
  use Plug.Router

  plug :match
  plug :dispatch

  get "/queues" do
    IO.puts "YOLO"
    conn |> halt()

josevalim

defmodule SomeModule do
  def start(host, options) do
    # We are assuming SomeSup has been already started somewhere
    # (ideally in a supervision tree).
    {:ok, child_pid} = SomeSup.attach_to(SomeSup, host, options)
  end
end

defmodule SomeSup do
  use Supervisor

josevalim

# http://henrik.nyh.se/2008/12/git-dirty-prompt
# http://www.simplisticcomplexity.com/2008/03/13/show-your-git-branch-name-in-your-prompt/
# username@Machine ~/dev/dir[master]$ # clean working directory
# username@Machine ~/dev/dir[master*]$ # dirty working directory

function parse_git_deleted {
  [[ $(git status 2> /dev/null | grep deleted:) != "" ]] && echo "-"
}
function parse_git_added {
  [[ $(git status 2> /dev/null | grep "Untracked files:") != "" ]] && echo '+'

josevalim

#!/bin/sh

mkdir -p /usr/local/src && cd /usr/local/src
wget ftp://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.1-p0.tar.bz2
tar -xjvf ruby-1.9.1-p0.tar.bz2
cd ruby-1.9.1-p0
./configure --prefix=/usr --program-suffix=19 --enable-shared
make && make install

josevalim

module ActiveRecord
  module Generators
    class ModelGenerator < Base
      # Line below is optional. If the generator name would be :model, the name
      # below could be guessed.
      #
      # Generators are also public by default. If they are private it can be
      # invoked only by other generators.
      #
      name :activerecord, :private => false

josevalim

# COMMUNITY CHALLENGE
#
# How would you test this Quiz#problem method? Only two rules:
#
# 1. You must test the order the gets/puts happen. The tests should not
#    still pass if "gets" happens before "puts", etc.
#
# 2. No changing the Quiz class implementation/structure. But you can
#    use whatever framework you want for the tests.
# 

josevalim

[ Carlhuda ]
actionmailer/lib/action_mailer/railtie.rb:17 (was actionmailer/lib/action_mailer/rails.rb)
actionmailer/lib/action_mailer/railtie.rb:23 (was actionmailer/lib/action_mailer/rails.rb)
actionpack/lib/action_controller/railtie.rb:17 (was actionpack/lib/action_controller/rails.rb)
actionpack/lib/action_controller/railtie.rb:37 (was actionpack/lib/action_controller/rails.rb)
actionpack/lib/action_view/template/handlers.rb:13
activerecord/lib/active_record/railtie.rb:74 (was activerecord/lib/active_record/rails.rb)
activesupport/lib/active_support/testing/performance.rb:321

josevalim

# require "rack/openid"
require 'devise/strategies/base'
require 'uri'

module Devise
  module Strategies
    # Default strategy for signing in a user, based on openid
    # Redirects to sign_in page if it's not authenticated
    class OpenId < Warden::Strategies::Base
      include Devise::Strategies::Base

josevalim

Warden::Strategies.add(:openid) do
  def valid?
    !params["openid_identifier"].blank?
  end

  def authenticate!
    if resp = env[Rack::OpenID::RESPONSE]
      RAILS_DEFAULT_LOGGER.info "Attempting OpenID auth: #{env["rack.openid.response"].inspect}"
      case resp.status
      when :success