mthomas

#!/bin/bash

set -o errexit
set -o pipefail

pids=""
RESULT=0

(sleep 1; echo 'a'; exit 1) &
pids="$pids $!"

mthomas

Keybase proof

I hereby claim:

• I am mthomas on github.
• I am mbthomas (https://keybase.io/mbthomas) on keybase.
• I have a public key whose fingerprint is E4C0 9C84 99DC 5074 BF1D 4DC9 9626 DBC2 6248 BC3B

To claim this, I am signing this object:

mthomas

#csharp
(new[]{1,2,3,4}).Where( i => i % 2 == 0 );

#ruby
[1,2,3,4].select{ |x| x.even? }

#python
[x for x in [1,2,3,4] if not x%2]
#or, more norvingly
filter(lambda x: not x%2, [1,2,3,4])

mthomas

<h1>Sign In</h1>

<%= form_for(:session, :url => sessions_path) do |f| %>
  <div class="field">
    <%= f.label :email %>
    <%= f.text_field :email %>
  </div>
  <div class="field">
    <%= f.label :password %>
    <%= f.password_field :password %>

mthomas

  resources :sessions
  
  match '/sigin',		:to => 'sessions#new'
  match '/signout',		:to => 'sessions#destroy'

mthomas

class SessionsController < ApplicationController
  before_filter :require_no_user, :only => [:new, :create]
  before_filter :require_user, :only => :destroy
  
  def new
  end
  
  def create
    authenticate!
    

mthomas

class ApplicationController < ActionController::Base
  helper :all # include all helpers, all the time
  protect_from_forgery # See ActionController::RequestForgeryProtection for details
  
  private
    def require_user
      unless current_user
        flash[:notice] = "You must be logged in to access that page"
        redirect_to new_session_url
        return false

mthomas

Rails.configuration.middleware.use RailsWarden::Manager do |manager|
  manager.default_strategies :password
  manager.failure_app = SessionsController
end

# Setup Session Serialization
class Warden::SessionSerializer
  def serialize(user)
    user.id
  end

mthomas

var names = Array("Mike, Bob, John");
var itemNames = Array(...);
var itemSuffixes = Array(...);

var users = names.Each(name => CreateUser(name + "@demo.company.com", "password"));

var items = 100.Times(i => CreateItem(Pick(itemNames), Pick(itemSuffixes), RandomPrice()));

var transactions = 50.Times(i => PurchaseItem(Pick(users), Pick(items)));

mthomas

public static class DemoExtensions{
  public static T Pick<T>(this IEnumerable<T> items){
     /*return random element out of items*/
  }

  public static T Take<T>(this IList<T> items){
    /*thread safe: return random element out of items and remove it*/
  }

  public static IList<T> Times<T>(this int x, Func<int, T> action){