From: James Byrne <redmine@...>
Date: 2010-09-08T01:59:01+09:00
Subject: [ruby-core:32108] [Ruby 1.9.2-Backport#3799][Open] Unexpected behaviour of require_relative

Backport #3799: Unexpected behaviour of require_relative
http://redmine.ruby-lang.org/issues/show/3799

Author: James Byrne
Status: Open, Priority: Normal

I have this code written to handle ruby 1.8 and 1.9.2:

#!/usr/bin/env ruby
<pre>
library = '/../lib/forex/hll_forex_ca_feed'

if RUBY_VERSION < '1.9.2'
  require File.dirname(__FILE__) + library
else
  require_relative File.dirname(__FILE__) + '/..' + library
end

HLLForexCAFeed::Main.new(ARGV).execute
</pre>

This code works with 1.8.6+ and 1.9.2.  However, please note the insertion of an additional directory reverse traversal.  If I do not provide this to Ruby-1.9.2 then the require fails with this error:

<pre>
$ bin/forex
bin/forex:8:in `require_relative': no such file to load -- /home/byrnejb/Software/Development/Projects/proforma.git/bin/lib/forex/hll_forex_ca_feed (LoadError)
        from bin/forex:8:in `<main>
</pre>

My question is:  Why does Ruby-1.9.2-p0 require the additional backtrack?


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