crittelmeyer

tmux/tmuxinator cheatsheet

tmux

As configured in my dotfiles, here and here.

Command line

$ tmux                           -> start new
$ tmux new -s myname             -> start new w/session name
$ tmux a  #  (or at, or attach)  -> attach
$ tmux a -t myname               -> attach to named

maxivak

Sending emails with ActionMailer and Sidekiq

Send email asynchroniously using Sidekiq.

ActionMailer

Create your mailer us usual:

janko

require "open-uri"
require "net/http"

Error = Class.new(StandardError)

DOWNLOAD_ERRORS = [
  SocketError,
  OpenURI::HTTPError,
  RuntimeError,
  URI::InvalidURIError,

pmarreck

      PASSWORD_VALIDATOR = /(      # Start of group
        (?:                        # Start of nonmatching group, 4 possible solutions
          (?=.*[a-z])              # Must contain one lowercase character
          (?=.*[A-Z])              # Must contain one uppercase character
          (?=.*\W)                 # Must contain one non-word character or symbol
        |                          # or...
          (?=.*\d)                 # Must contain one digit from 0-9
          (?=.*[A-Z])              # Must contain one uppercase character
          (?=.*\W)                 # Must contain one non-word character or symbol
        |                          # or...

Integralist

Lambda: standard

# Creating a lambda
l = lambda { |name| "Hi #{name}!" }

# Executing the lambda
l.call("foo") # => Hi foo!

ybart

# Goal: Allow addition of instances to a collection in a factory-built object
# when those instances require references to the parent.
# Typically occurs in Rails when one model has_many instances of another
 
# See more at:
# http://stackoverflow.com/questions/2937326/populating-an-association-with-children-in-factory-girl
 
# Usage
# Foo has_many :bar
#

kerryb

# A proc is just a block of code that can be called later:

say_hello = -> { 2 + 2 }

say_hello.call # => 4

# Procs can take parameters:

double = ->(x) { x * 2 }

owenkellogg

group :test, :development do
  gem 'minitest-rails',
      :git => "[email protected]/rawongithub/minitest-rails.git",
      :branch => "gemspec"
end
group :test do
  gem 'minitest-rails-shoulda',
      :git => "[email protected]/rawongithub/minitest-rails-shoulda.git"  
  gem 'capybara_minitest_spec'
end

ProfAvery

#!/usr/bin/env ruby

require 'test/unit'

class TestSums < Test::Unit::TestCase

  def setup
    @a = [2, 5, 18, 27]
    @sum = 0
  end

tandibar

git log -1 | grep "commit .*" | ruby -e "print ARGF.read.split(' ')[1]" | pbcopy