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error do
  exception = request.env['sinatra.error']
  Hoptoad::Notifier.send_error exception, params, request.env if %w(staging production).include?(ENV['RACK_ENV'])

  erb :five_hundred
end

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# Before/After filters in padrino

SimpleApp.controllers :posts do
  # These are public actions, no authentication required
  get :index do; ... end;
  get :show, :with => :id do; ... end;

  # These actions require being authenticated

  # Variant 1

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$ padrino-gen project sample_blog -t shoulda -e haml -c sass -s jquery -d activerecord
      create  
      create  config/apps.rb
      create  config/boot.rb
      create  config.ru
      create  public/favicon.ico
      create  .gitignore
      create  public/images
      create  public/javascripts
      create  public/stylesheets

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project :test => :shoulda, :renderer => :haml, :stylesheet => :sass, :script => :jquery, :orm => :activerecord, :dev => true

#default routes
APP_INIT = <<-APP
  get "/" do
    "Hello World!"
  end

  get :about, :map => '/about_us' do
    render :haml, "%p This is a sample blog created to demonstrate the power of Padrino!"

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Merb¶ ↑

• Has routes.rb like rails, Padrino not

• Merb define controllers in class and routes in def like rails, Padrino use sinatra blocks.

• Merb has not admin, Padrino has some thing like django-admin

• Merb has slices that are 1:1 equals to Rails Engines, Padrino apply the same concept of DJango where you build a project and then apps.

• A full merb stack require some like 56 gems Padrino if Im not wrong 16 gems.

• Padrino has full support to I18n like rails/django, Merb not

• Merb has DataMapper as preferred orm, Rails ActiveRecord, Padrino “NONE”

• Our rendering is only an enhanced version of Sinatra rendering (but Merb didn’t support haml :foo, erb :bar)

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#!/usr/bin/ruby
# This script installs to /usr/local only. To install elsewhere you can just
# untar https://github.com/mxcl/homebrew/tarball/master anywhere you like.

module Tty extend self
  def blue; bold 34; end
  def white; bold 39; end
  def red; underline 31; end
  def reset; escape 0; end
  def bold n; escape "1;#{n}" end

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Get Mountain Lion and Homebrew to Be Happy

before all uninstall all previous version of xcode 4.4.

sudo uninstall-devtools –mode=all

All developers tools under xcode 4.4+ are self-contained into XCode.app, before 4.4. all stuff was installed into /Developers

This command cleanup a bit your env.

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module EventMachine
  def self.system3(cmd, *args, &cb)
    cb ||= args.pop if args.last.is_a? Proc
    init = args.pop if args.last.is_a? Proc

    # merge remaining arguments into the command
    cmd = ([cmd] + args.map{|a|a.to_s.dump}).join(' ')

    new_stderr = $stderr.dup

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require "fiber"

f1 = Fiber.new do |f2|
  while true
    puts "A"
    sleep 2
    f2.transfer
  end
end

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# config/initializers/source_maps.rb

if Rails.env.development?
  module CoffeeScript
    class SourceMapError < StandardError; end;

    class << self

      def compile script, options
        script = script.read if script.respond_to?(:read)