From: James Gray <james@...>
Date: 2008-12-10T06:58:19+09:00
Subject: Re: Way to many calls to Dir#[]

On Dec 9, 2008, at 3:44 PM, Tj Holowaychuk wrote:

> its in highline!!

I disagree.  :)

$ grep -c 'Dir' `ruby -e 'puts Dir["lib/**/*.rb"]'`
lib/highline/color_scheme.rb:0
lib/highline/import.rb:0
lib/highline/menu.rb:0
lib/highline/question.rb:1
lib/highline/system_extensions.rb:0
lib/highline.rb:0

If you look into that single usage of Dir[], you will see that you  
must construct a HighLine::Question object and call selection() on it  
to trigger that code.  This does not happen when HighLine loads.

> if you put this in any file it calls Dir[] like nuts
>
> require 'rubygems'
> require 'highline/import'
>
> BUT for anyone else who might run across this, the following cuts this
> down to a little over 100 calls to Dir#[], where as the previous is  
> 600+
>
> require 'rubygems'
> require 'highline'
> require 'highline/import'

I assume that's a RubyGems issue with how it figures out to load  
highline/import.  I recommend asking your question on their mailing  
list.

James Edward Gray II