From: Joel VanderWerf <vjoel@...>
Date: 2005-02-22T04:42:03+09:00
Subject: Re: Require  when Executed file is required by another file.

Zev Blut wrote:
> 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?

Symlinks...

$ cd /tmp
$ touch foo
$ ln -s foo bar
$ ruby -e 'p File.expand_path("foo")'
"/tmp/foo"
$ ruby -e 'p File.expand_path("bar")'
"/tmp/bar"

It might not be very portable, but there is File::Stat#ino:

$ ruby -e 'p File.stat("foo").ino'
1239183
$ ruby -e 'p File.stat("foo").dev'
776
$ ruby -e 'p File.stat("bar").ino'
1239183
$ ruby -e 'p File.stat("bar").dev'
776