From: Zev Blut <rubyzbibd@...>
Date: 2005-02-21T20:25:41+09:00
Subject: Re: Require  when Executed file is required by another file.

On Mon, 21 Feb 2005 20:00:37 +0900, Martin Ankerl  
<martin.ankerl@gmail.com> wrote:

>> In general, it is very hard and time consuming to determine that  
>> different paths refer to the same file, so require does not even try to  
>> pretend that it is robust.
>
> Why not calculate a hash of the file and use this in the check. This  
> would make the whole thing independent from the actual path, and allows  
> to re-require a file if its content changes.

Interesting solution!  Although, I am sure some people may not like the
potential performance hit.  Also the re-require could be good and it
could be bad, depending upon various situations.

A coworker of mine just commented why not just use File.expand_path for
the required file?  Is there any reason not to do this?

Cheers,
Zev