ivanvc

class ChangeDefaultDeviceSettings < ActiveRecord::Migration

  def self.up
    execute "ALTER TABLE `#{User.table_name}` CHANGE `can_dm_me` `can_dm_me` TINYINT(1) NOT NULL DEFAULT 0"
    execute "ALTER TABLE `#{User.table_name}` CHANGE `can_email_me` `can_email_me` TINYINT(1) NOT NULL DEFAULT 1"
  end

  def self.down
    execute "ALTER TABLE `#{User.table_name}` CHANGE `can_dm_me` TINYINT(1) NOT NULL DEFAULT 1"
    execute "ALTER TABLE `#{User.table_name}` CHANGE `can_email_me` `can_email_me` TINYINT(1) NOT NULL DEFAULT 0"

ivanvc

# Rebase
$ git commit -a -m "Commit message"
$ git fetch
$ git rebase [branch] # origin/master
$ git push

# Stash
$ git stash
$ git pull
$ git stash apply

ivanvc

class CryptoTest
  attr_reader :key, :iv
  
  # Initiliaze it with a hash
  # Possible options: key, and initialization vector
  # examples 
  # CryptoTest.new #=> Will generate random iv and key
  # CryptoTest.new(:key => "hexadecimal string") #=> Will generate random initialization vector
  # CryptoTest.new(:iv => "hexadecimal string") #=> Will generate random key
  # CryptoTest.new(:iv => "hexadecimal string", :key => "hexadecimal string") #=> Won't generate anything

ivanvc

namespace :spec do
  desc "Run remote tests"
  Spec::Rake::SpecTask.new(:remote) do |t|
    t.spec_opts = ['--options', "\"#{RAILS_ROOT}/spec/spec.opts\""]
    t.spec_files = FileList['spec/remote/**/*_spec.rb']
  end
end

ivanvc

reset_colour="$(echo -n '\e[0m')"
bold_colour="$(echo -n '\e[1m')"

# Foreground

grey="$(echo -n '\e[30m')"
red="$(echo -n '\e[31m')"
green="$(echo -n '\e[32m')"
yellow="$(echo -n '\e[33m')"
blue="$(echo -n '\e[34m')"

ivanvc

raise "No file specified"    unless ARGV[0]
raise "File does not exist"  unless File.exists?(ARGV[0])
raise "File is not readable" unless File.readable?(ARGV[0])
file = File.open(ARGV[0])

cells    = Array.new(30000, 0)
min_size = 0
max_size = 255
location = 0