justinfrench

# This has very little win:
<%= content_tag(:p, "Foo", "data-bah" => "...", "data-baz" => "...") %>

# Some chumps make it even more noisy:
<%= content_tag(:p, "Foo", :"data-bah" => "...", :"data-baz" => "...") %>

# I was going to patch Rails to convert :data_bah to "data-bah" 
<%= content_tag(:p, "Foo", :data_bah => "...", :data_baz => "...") %>

# But they already do this:

dhh

# autoload concerns
module YourApp
  class Application < Rails::Application
    config.autoload_paths += %W(
      #{config.root}/app/controllers/concerns
      #{config.root}/app/models/concerns
    )
  end
end

rodrigotassinari

# Ruby 1.9 Fast require:
#   https://gist.github.com/1008945
curl https://raw.github.com/gist/1008945/7532898172cd9f03b4c0d0db145bc2440dcbb2f6/load.patch > load.patch

# Ruby 1.9.2 GC Patch:
#   https://gist.github.com/856296
curl https://raw.github.com/gist/856296/a19ac26fe7412ef398bd9f57e61f06fef1f186fe/patch-1.9.2-gc.patch > gc.patch

rvm install 1.9.2-p180 --patch load.patch,gc.patch -n loadgc
rm gc.patch load.patch

coldnebo

[
  { "keys": ["ctrl+shift+x"], "command": "tidy_xml" },
  { "keys": ["ctrl+shift+j"], "command": "prettify_json" }
]

lucasfais

Sublime Text 2 – Useful Shortcuts (Mac OS X)

General

⌘T	go to file
⌘⌃P	go to project
⌘R	go to methods
⌃G	go to line
⌘KB	toggle side bar
⌘⇧P	command prompt

tenderlove

###
# Read in XML as a stream, write out JSON as a stream.  As little information
# is kept in memory as possible.
require 'nokogiri'
require 'psych'

class JSONTranslator < Nokogiri::XML::SAX::Document
  attr_reader :emitter

  def initialize emitter

freshtonic

• This creates a 560mb ramdisk. Adjust the size accordingly. I think the number at the end of the command is the number of disk blocks. They are 2kb in size for me.
• Restarting postgres is not necessary; you can create the ramdisk and tablespace while postgres is running.
• You will lose all data in the ramdisk tablespace when you shut your machine down

  $ diskutil erasevolume HFS+ "postgres_ramdisk" `hdiutil attach -nomount ram://1165430`
  Started erase on disk1
  Unmounting disk
  Erasing
 Initialized /dev/rdisk1 as a 569 MB HFS Plus volume

dx7

# Rspec formatter by RAFAELDX7
# Use: rspec --require "dx7_formatter.rb" --format Dx7Formatter -- ./spec/your_spec.rb

require 'rspec/core/formatters/base_text_formatter'

class Dx7Formatter < RSpec::Core::Formatters::BaseTextFormatter

  def index
    @index ||= -1
    @index += 1

burke

ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

• rbenv
• ruby-build

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

tapajos

Migrando do Heroku para a Amazon Web Services

Recentemente eu comentei sobre a migração que fizemos no [Myfinance][mf] saindo do [Heroku][h] e indo para a [Amazon Web Services][a] e diversas pessoas me perguntaram as razões pela qual fizemos essa mudança. O objetivo desse post é apenas explicar a decisão que a nossa equipe tomou, como foi e as conseguências dessa migração.

Antes de começar eu gostaria de deixar claro que o objetivo desse texto não é comparar hospedagens e nem dizer que uma é melhor do que a outra. Trata-se apenas do relato de uma experiência.

A motivação

Antes de explicar a motivação por trás da migração é interessante mostrar como era a nossa estrutura.