tjh

#!/usr/bin/env ruby

# Put this file in the root of your Rails project,
# then run it to output the SQL needed to change all
# your tables and columns to the same character set 
# and collation.
#
# > ruby character_set_and_collation.rb

DATABASE      = ''

ravasthi

authors:
  hanzou:
    name: Hanzou Hattori
    display_name: Hanzou
    gravatar: c66919cb194f96c696c1da0c47354a6a
    email: hanzou@company.com
    web: http://company.com
    twitter: company
    github: hhattori
  jorgen:

alialo

paginate:    10

zenkay

Ruby, RVM and Mountain Lion

Key problems

Mountain Lion (10.8) has three main difference compared to Lion (10.7):

• XCode 4.4 does not install Command Line Tools by default
• X11 isn't available anymore
• The installed version of OpenSSL has some bugs

How to work around

L-A

var MoonInfo = function(day, month, year) {

    var n0 = parseInt( "0" );
    var f0 = parseFloat( "0.0" );
    var AG = f0;   // Moon's age
    var DI = f0;   // Moon's distance in earth radii
    var LA = f0;   // Moon's ecliptic latitude
    var LO = f0;   // Moon's ecliptic longitude
    var Phase = " ";
    var Zodiac = " ";

mrichie

# First, make sure that you have the most recent rvm. Several bugs with 2.0.0-preview1
# have recently been fixed.
#
# Second, the openssl that comes with MacOS is too old for Ruby 2.0. You need to install
# a newer one with homebrew or the rvm pkg command.

# Option 1, with homebrew openssl:

brew update
brew install openssl

agarie

# Use Homebrew and be happy.
brew update
brew install opencv

# Give the correct pathnames. Of course, `2.4.3` is the current version at this time, change it accordingly.
gem install ruby-opencv -- --with-opencv-lib=/usr/local/Cellar/opencv/2.4.3/lib \
                           --with-opencv-include=/usr/local/Cellar/opencv/2.4.3/include/opencv \
                           --with-opencv-include=/usr/local/Cellar/opencv/2.4.3/include/opencv2

enoliglesias

def confirmation(credentials)
  return false if params['ds_signature'].blank?
  # The DES3-CBC key generation it's the same that in the creation gist
  # You can take a look at the explanation
  secret_key = credentials[:secret_key]
  secret_key_base64 = Base64.strict_decode64(secret_key)

  des3 = OpenSSL::Cipher::Cipher.new('des-ede3-cbc')
  block_length = 8
  des3.padding = 0

dadelmo

require 'net/http'
require 'uri'
require 'json'

def open(url)
  Net::HTTP.get(URI.parse(url))
end

page_content = open('http://www.loteriasyapuestas.es/servicios/premioDecimoProvisionalWeb')
res_json = JSON.parse(page_content)

porras

This is my best try at transcribing of the lightning talk I gave at RUG::B on April 2016. Due to poor time management (LOL) the delivery was rushed and some examples were skipped, I hope having them posted here makes them more useful.

xargs

xargs is a small but very useful program that is installed in most if not all of your computers¹. Many of you probably know it. Those who don't will learn something really useful, but those who do will learn a couple of cool tricks, too.

Why xargs

You might have heard about the Unix philosophy: