aflatter

require 'rubygems'
require 'eventmachine'

class Handler
  include EventMachine::Deferrable
  
  def takes_long_time(seconds = 5)
    sleep(seconds)
    puts "Awoke after #{seconds} seconds."
    succeed(seconds)

aflatter

  # An empty hash does not result in creating a new instance of the type.
  # Required because that's what we get back from the relation.
  class OptionalCoercer
    def initialize(type)
      @type = type
    end

    def call(value)
      return unless value
      value.values.any? ? type.new(value) : nil

aflatter

require 'scrypt'

module Virtus
  class Attribute
    class Password < ::Virtus::Attribute
      primitive SCrypt::Password

      def coerce(value)
        value ? SCrypt::Password.new(value) : nil
      rescue SCrypt::Errors::InvalidHash

aflatter

require 'bundler'
require 'erb'

# Generates a Nix expression for bundler-managed dependencies.
module Bundix
  class << self
    def run(gemfile = './Gemfile', lockfile = 'Gemfile.lock')
      gems = resolve_deps(gemfile, lockfile)
      checksums = compute_checksums(gems)
      write_expr(gems, checksums)