GNU bug report logs - #16851
24.3.50; file-truename removes trailing / on remote hosts

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Package: emacs;

Reported by: Leo Liu <sdl.web <at> gmail.com>

Date: Sun, 23 Feb 2014 12:13:02 UTC

Severity: normal

Found in version 24.3.50

Done: Michael Albinus <michael.albinus <at> gmx.de>

Bug is archived. No further changes may be made.

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Report forwarded to michael.albinus <at> gmx.de, bug-gnu-emacs <at> gnu.org:
bug#16851; Package emacs. (Sun, 23 Feb 2014 12:13:02 GMT) Full text and rfc822 format available.
Acknowledgement sent to Leo Liu <sdl.web <at> gmail.com>:
New bug report received and forwarded. Copy sent to michael.albinus <at> gmx.de, bug-gnu-emacs <at> gnu.org. (Sun, 23 Feb 2014 12:13:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Leo Liu <sdl.web <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.50; file-truename removes trailing / on remote hosts
Date: Sun, 23 Feb 2014 20:12:07 +0800

1. Open dired on a remote host
2. eval (file-truename default-directory)

The trailing / is gone.

Leo
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#16851; Package emacs. (Sun, 23 Feb 2014 13:11:01 GMT) Full text and rfc822 format available.

Message #8 received at 16851 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Leo Liu <sdl.web <at> gmail.com>
Cc: Michael Albinus <michael.albinus <at> gmx.de>, 16851 <at> debbugs.gnu.org
Subject: Re: bug#16851: 24.3.50;
 file-truename removes trailing / on remote hosts
Date: Sun, 23 Feb 2014 14:10:11 +0100

Leo Liu <sdl.web <at> gmail.com> writes:

> 1. Open dired on a remote host
> 2. eval (file-truename default-directory)
>
> The trailing / is gone.

I don't think this is a bug as file-truename operates on file names, but
default-directory is a directory (so use directory-file-name first, and
file-name-as-directory afterwards).

Andreas.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#16851; Package emacs. (Sun, 23 Feb 2014 13:21:01 GMT) Full text and rfc822 format available.

Message #11 received at 16851 <at> debbugs.gnu.org (full text, mbox):

From: Juanma Barranquero <lekktu <at> gmail.com>
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: Michael Albinus <michael.albinus <at> gmx.de>, Leo Liu <sdl.web <at> gmail.com>,
 16851 <at> debbugs.gnu.org
Subject: Re: bug#16851: 24.3.50;
 file-truename removes trailing / on remote hosts
Date: Sun, 23 Feb 2014 14:19:17 +0100

On Sun, Feb 23, 2014 at 2:10 PM, Andreas Schwab <schwab <at> linux-m68k.org> wrote:

> I don't think this is a bug as file-truename operates on file names, but
> default-directory is a directory

And yet

(file-truename default-directory) => "c:/Devel/emacs/repo/trunk/"

   J
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#16851; Package emacs. (Sun, 23 Feb 2014 13:27:02 GMT) Full text and rfc822 format available.

Message #14 received at 16851 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Juanma Barranquero <lekktu <at> gmail.com>
Cc: Michael Albinus <michael.albinus <at> gmx.de>, Leo Liu <sdl.web <at> gmail.com>,
 16851 <at> debbugs.gnu.org
Subject: Re: bug#16851: 24.3.50;
 file-truename removes trailing / on remote hosts
Date: Sun, 23 Feb 2014 14:26:33 +0100

Juanma Barranquero <lekktu <at> gmail.com> writes:

> On Sun, Feb 23, 2014 at 2:10 PM, Andreas Schwab <schwab <at> linux-m68k.org> wrote:
>
>> I don't think this is a bug as file-truename operates on file names, but
>> default-directory is a directory
>
> And yet
>
> (file-truename default-directory) => "c:/Devel/emacs/repo/trunk/"

How is that a contradiction?

Andreas.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#16851; Package emacs. (Sun, 23 Feb 2014 13:30:06 GMT) Full text and rfc822 format available.

Message #17 received at 16851 <at> debbugs.gnu.org (full text, mbox):

From: Juanma Barranquero <lekktu <at> gmail.com>
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: Michael Albinus <michael.albinus <at> gmx.de>, Leo Liu <sdl.web <at> gmail.com>,
 16851 <at> debbugs.gnu.org
Subject: Re: bug#16851: 24.3.50;
 file-truename removes trailing / on remote hosts
Date: Sun, 23 Feb 2014 14:28:38 +0100

On Sun, Feb 23, 2014 at 2:26 PM, Andreas Schwab <schwab <at> linux-m68k.org> wrote:

> How is that a contradiction?

It does not remove the trailing slash for a local directory.
Apparently, it does for remote host directories.
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#16851; Package emacs. (Sun, 23 Feb 2014 13:39:02 GMT) Full text and rfc822 format available.

Message #20 received at 16851 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Juanma Barranquero <lekktu <at> gmail.com>
Cc: Michael Albinus <michael.albinus <at> gmx.de>, Leo Liu <sdl.web <at> gmail.com>,
 16851 <at> debbugs.gnu.org
Subject: Re: bug#16851: 24.3.50;
 file-truename removes trailing / on remote hosts
Date: Sun, 23 Feb 2014 14:37:58 +0100

Juanma Barranquero <lekktu <at> gmail.com> writes:

> On Sun, Feb 23, 2014 at 2:26 PM, Andreas Schwab <schwab <at> linux-m68k.org> wrote:
>
>> How is that a contradiction?
>
> It does not remove the trailing slash for a local directory.
> Apparently, it does for remote host directories.

Your use is outside the domain of the function, so nothing is
guaranteed.

Andreas.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#16851; Package emacs. (Sun, 23 Feb 2014 13:41:01 GMT) Full text and rfc822 format available.

Message #23 received at 16851 <at> debbugs.gnu.org (full text, mbox):

From: Juanma Barranquero <lekktu <at> gmail.com>
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: Michael Albinus <michael.albinus <at> gmx.de>, Leo Liu <sdl.web <at> gmail.com>,
 16851 <at> debbugs.gnu.org
Subject: Re: bug#16851: 24.3.50;
 file-truename removes trailing / on remote hosts
Date: Sun, 23 Feb 2014 14:39:26 +0100

On Sun, Feb 23, 2014 at 2:37 PM, Andreas Schwab <schwab <at> linux-m68k.org> wrote:

> Your use is outside the domain of the function

How so?
Reply sent to Michael Albinus <michael.albinus <at> gmx.de>:
You have taken responsibility. (Sun, 23 Feb 2014 14:53:02 GMT) Full text and rfc822 format available.
Notification sent to Leo Liu <sdl.web <at> gmail.com>:
bug acknowledged by developer. (Sun, 23 Feb 2014 14:53:02 GMT) Full text and rfc822 format available.

Message #28 received at 16851-done <at> debbugs.gnu.org (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: Leo Liu <sdl.web <at> gmail.com>, 16851-done <at> debbugs.gnu.org
Subject: Re: bug#16851: 24.3.50;
 file-truename removes trailing / on remote hosts
Date: Sun, 23 Feb 2014 15:52:31 +0100

Andreas Schwab <schwab <at> linux-m68k.org> writes:

> Leo Liu <sdl.web <at> gmail.com> writes:
>
>> 1. Open dired on a remote host
>> 2. eval (file-truename default-directory)
>>
>> The trailing / is gone.
>
> I don't think this is a bug as file-truename operates on file names, but
> default-directory is a directory (so use directory-file-name first, and
> file-name-as-directory afterwards).

I tend to agree that this is not a bug. OTOH, it is easy to change Tramp
to behave like `file-truename' on local file names, so I've changed it.

> Andreas.

Best regards, Michael.
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#16851; Package emacs. (Mon, 24 Feb 2014 20:22:01 GMT) Full text and rfc822 format available.

Message #31 received at 16851 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: 16851 <at> debbugs.gnu.org
Cc: michael.albinus <at> gmx.de, sdl.web <at> gmail.com
Subject: Re: bug#16851: 24.3.50;
 file-truename removes trailing / on remote hosts
Date: Mon, 24 Feb 2014 15:21:08 -0500

> I tend to agree that this is not a bug. OTOH, it is easy to change Tramp
> to behave like `file-truename' on local file names, so I've changed it.

Thanks.  It's clearly the better behavior (since it preserves more info
from its argument).


        Stefan
bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Tue, 25 Mar 2014 11:24:04 GMT) Full text and rfc822 format available.
This bug report was last modified 10 years and 34 days ago.

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