From: Carlos <angus@...>
Date: 2004-02-19T00:42:54+09:00
Subject: Re: "require_next"?

> Trying to run irb on QNX6, I learned that there is a 48 char limit to 
> file names. The long filenames generated by Tempfile (called from 
> irb/locale.rb) were preventing irb from running. So I installed the 
> following code in site_ruby under the name "tempfile.rb" so that it 
> would be loaded before the real tempfile:
[...]
> Is there an easy way to implement this in ruby? If not, should it be 
> provided as a primitive by the interpreter?

How about something like that?:

def require_next the_first
    basename = File.basename(the_first)
    dirname = File.dirname(the_first)
    loaded = false
    idx = $:.index(dirname)+1
    $:[idx..-1].each do |dir|
        begin
            require "#{dirname}/#{basename}"
            loaded = true
            break
        rescue LoadError
            next
        end
    end
    raise LoadError, basename if !loaded
end

require_next __FILE__

(not tested).