GNU bug report logs - #10489
24.0.92; dired-do-copy may create infinite directory hierarchy

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Message #405 received at 10489 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> IRO.UMontreal.CA>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: 10489 <at> debbugs.gnu.org, Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
Subject: Re: bug#10489: 24.0.92;
	dired-do-copy may create infinite directory hierarchy
Date: Sun, 26 Feb 2012 16:38:41 -0500

>>>> It will be hard to detect that /sudo::/foo is equal to file:///foo.
>> Maybe (in this case it might be reasonably easy, but of course there are
>> harder cases).

> We would need a function `file-local-representation' or something like
> this, which returns "/foo" in both file name handler implementations.
> Tramp's file name handler doesn't know of URL syntax, and vice versa.

Tramp's knowledge of the semantics of "/sudo::" lets it simply turn
(file-equal-p "/sudo::/foo" "file:///foo") into (file-equal-p "/foo"
"file:///foo"), after which the url-handler-mode can do the same kind of
trivial reasoning.

> And no, I do NOT propose to add this. Sounds like overengineering to me.

Neither do I.


        Stefan

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