Part of the Pusher class from RubyGems.org

pusher.rb

class Pusher
  attr_reader :user, :spec, :message, :code, :rubygem, :body, :version, :version_id

  def initialize(user, body, host_with_port=nil)
    @user = user
    @body = StringIO.new(body.read)
    @indexer = Indexer.new
    @host_with_port = host_with_port
  end

  def process
    pull_spec && find && authorize && save
  end

... etc ...