Alain Ravet alainravet

Simple file/stream encryption using OpenSSL

Create and store a 512-byte random encryption key named secret:

$ mkkey secret

Encrypt the contents of file with the secret key and write it to file.enc:

$ encrypt secret < file > file.enc

Immutable Ruby

Libraries I talked about

ice_nine: Deep freeze ruby objects
Values: Simple immutable value objects for ruby
immutable_attributes: specify attributes within an ActiveRecord model that can be set but not modified
hamster: Efficient, Immutable, Thread-Safe Collection classes for Ruby

Next Steps

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = [email protected]:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

	module DefaultValues

	def has_default_values(default_values = {})

	cattr_accessor :default_values
	self.default_values = default_values

	after_initialize :assign_default_values

	include InstanceMethods

	module Celluloid
	class Thread < ::Thread

	def []= key, value
	if key_on_thread? key
	thread_vars[key] = value
	else
	super
	end
	end

	def required(arg=nil)
	method = caller_locations(1,1)[0].label
	raise ArgumentError.new("required parameter #{arg.to_sym.inspect + ' ' if arg}not passed to method #{method}")
	end

	def say(greeting: required('greeting'))
	puts greeting
	end

	def say2(greeting: required)

	module BinaryFileStringUtils
	def byte_to_int
	self.unpack('U').first
	end

	def little_endian_to_int
	# source : http://stackoverflow.com/questions/5236059/unpack-signed-little-endian-in-ruby
	arr, bits, num = self.unpack('V*'), 0, 0
	arr.each do \|int\|
	num += int << bits

	class Module
	# We often find ourselves with a medium-sized chunk of behavior that we'd
	# like to extract, but only mix in to a single class.
	#
	# We typically choose to leave the implementation directly in the class,
	# perhaps with a comment, because the mental and visual overhead of defining
	# a module, making it a Concern, and including it is just too great.
	#
	#
	# Using comments as lightweight modularity:

	#!/usr/bin/env ruby

	# API Documentation at http://api.wikia.com/wiki/LyricWiki_API

	require 'open-uri'
	require 'json'
	require 'tmpdir'

	ARTIST = "Johnny Cash"

	require "rest_client"
	require "twitter"

	URL = "http://www.oge.com/residential-customers/products-and-services/" +
	"Positive-Energy-Smart-Grid/Pages/PriceSignal.aspx"
	DATE_RE = Time.now.strftime("%A,\\s+%B\\s+%d,\\s+%Y")

	unless ARGV.size == 4
	abort "USAGE: #{$PROGRAM_NAME} CONSUMER_KEY CONSUMER_SECRET " +
	"OAUTH_TOKEN OAUTH_TOKEN_SECRET"