From: Luis Lavena <luislavena@...>
Date: 2011-09-17T23:58:08+09:00
Subject: [ruby-core:39610] File.realpath and non-existing drive letters

Hello,

According to the documentation of realpath:

*  Returns the real (absolute) pathname of _pathname_ in the actual
*  filesystem not containing symlinks or useless dots.

And:

*  All components of the pathname must exist when this method is
*  called.

Which results on success for:

>> File.realpath "C:/Windows"
=> "C:/Windows"

And exception for:

>> File.realpath "C:/Foo"
Errno::ENOENT: No such file or directory - C:/Foo

But for single drive letters, it doesn't result on anything (M: drive
do not exists on my system).

>> File.realpath "C:"
=> "C:"
>> File.realpath "M:"
=> "M:"
>> File.realpath "M:/"
=> "M:/"
>> File.realpath "M:."
=> "M:"
>> File.realpath "M:/."
=> "M:/"
>> File.realpath "M:/.."
=> "M:/"

Which might indicate that drive letter is not a required component of
the pathname, as established before in the documentation.

Should this be considered a bug or a platform limitation?

Thank you.
-- 
Luis Lavena
AREA 17
-
Perfection in design is achieved not when there is nothing more to add,
but rather when there is nothing more to take away.
Antoine de Saint-Exup�ry