pry.rb

  def load_spec(name)
    spec_path = Dir.glob("#{Gem.dir}/specifications/#{name}-*.gemspec").last
    Gem::Specification.load(spec_path) unless spec_path.nil?
  end

  def load_outter_gem_19(name)
    spec = load_spec(name)
    unless spec.nil?
      spec.dependencies.each do |dep|
        dep_spec = load_spec(dep.name)
        dep_spec.activate unless dep_spec.nil?
      end
      spec.activate
      require name
    end
  end

  def load_outter_gem_18(name)
    Gem.source_index.refresh!
    Gem.activate(name)
    require name
  end

  def load_outter_gem(name)
    version = RUBY_VERSION.split(".")[0..1].join
    send("load_outter_gem_#{version}", name)
  end

  def spy
    load_outter_gem "pry"
    if Object.const_defined?("Pry")
      Pry.start
      exit
    end
  end