Configure Refactored

gistfile1.txt

class Configuration
  attr_accessor :tail_logs, :max_connections, :admin_password, :app_server_config, :port
  
  def configurer
    if block_given?
      @app_server_config = Configuration.new
      yield @app_server_config
      @app_server_config
    else
      @app_server_config || Configuration.new
    end
  end
  alias :app_server :configurer
end 

def configure(&block)
  Configuration.new.configurer &block
end


configuration = configure do |config|  
  config.tail_logs = true  
  config.max_connections = 55  
  config.admin_password = 'secret'  
  config.app_server do |app_server_config|  
    app_server_config.port = 8808  
    app_server_config.admin_password = config.admin_password  
  end  
end  
  
p configuration.class # => Configuration  
p configuration.tail_logs # => true  
p configuration.app_server.admin_password # => 'secret'