From: Jesse Merriman <jesse.d.merriman@...>
Date: 2008-09-05T07:09:04+09:00
Subject: Re: [SUMMARY] Where the Required Things Are (#175)

> the two "complete" solutions (Merriman, Suchanek) could quite
> possibly be broken on other platforms. I don't know. (I'm a bit
> occupied this week.:) A 100% solid solution should account for all
> these things.

Both Michal's and mine work on my Linux box:

jesse@ricercar $ uname -a
Linux ricercar 2.6.25-gentoo-r7 #2 SMP PREEMPT Thu Aug 14 18:28:35 EDT 2008 i686 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz GenuineIntel GNU/Linux
jesse@ricercar $ ruby -v
ruby 1.8.6 (2008-03-03 patchlevel 114) [i686-linux]


> Finally, most of you should recognize the standard technique for
> knowing when a script is run rather than loaded via `require`:
> 
>     if __FILE__ == $0
>       ARGV.each { |mod| require mod }
>     end

There is some danger though...

jesse@ricercar $ ./modwhich.rb modwhich.rb
./modwhich.rb:8:in `require_orig': stack level too deep (SystemStackError)
        from ./modwhich.rb:8:in `require_orig'
        from ./modwhich.rb:8:in `require'
        from ./modwhich.rb:25
        from ./modwhich.rb:25:in `each'
        from ./modwhich.rb:25
        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require_orig'
        from ./modwhich.rb:8:in `require'
        from ./modwhich.rb:25
        from ./modwhich.rb:25:in `each'
        from ./modwhich.rb:25

--
Jesse Merriman