GNU bug report logs - #4614
23.1.50; tramp-ftp-file-name-handler: Recursive `require' for feature `ange-ftp'

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Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Stephen Berman <stephen.berman <at> gmx.net>
To: emacs-pretest-bug <at> gnu.org
Subject: 23.1.50; tramp-ftp-file-name-handler: Recursive `require' for feature `ange-ftp'
Date: Fri, 02 Oct 2009 11:14:21 +0200

Until sometime within the last few weeks (sorry, I can't narrow it down
more), the following (anonymized) code worked fine:

(defun my-ftp ()
  "Call dired on my ftp server."
  (interactive)
  (require 'tramp)
  (let ((default-directory "/ftp:my-name <at> my.server.net:/"))
    (call-interactively 'dired)))

But now it throws the error in the Subject line (also with emacs -Q
built with make bootstrap).  When I comment out (require 'tramp) and
eval the resulting defun in emacs -Q, then I get this error:

expand-file-name: Recursive load: "/home/steve/cvsroot/emacs/lisp/net/tramp.elc", "/home/steve/cvsroot/emacs/lisp/net/tramp.elc", "/home/steve/cvsroot/emacs/lisp/net/tramp.elc", "/home/steve/cvsroot/emacs/lisp/net/tramp.elc", "/home/steve/cvsroot/emacs/lisp/net/tramp.elc", "/home/steve/cvsroot/emacs/lisp/dired.elc"

Doing `C-x d RET /ftp:my-name <at> my.server.net:/ RET' works as always.
After doing this, then my-ftp also works (both with the require-sexp and
without it).

The problem is only with ftp handling; the following defun works fine:

(defun sv ()
  "Call dired on /su::/var/log."
  (interactive)
  (require 'tramp)
  (let ((default-directory "/su::/var/log"))
    (call-interactively 'dired)))

Did something change in the ftp handling that I have to adapt my-ftp to,
or is this a bug in Emacs?


In GNU Emacs 23.1.50.1 (i686-pc-linux-gnu, GTK+ Version 2.14.4)
 of 2009-10-01 on escher
Windowing system distributor `The X.Org Foundation', version 11.0.10502000
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=local
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Message #8 received at 4614 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Stephen Berman <stephen.berman <at> gmx.net>
Cc: 4614 <at> debbugs.gnu.org
Subject: Re: bug#4614: 23.1.50; tramp-ftp-file-name-handler: Recursive `require' for feature `ange-ftp'
Date: Fri, 02 Oct 2009 22:56:15 -0400

Stephen Berman wrote:

> Until sometime within the last few weeks (sorry, I can't narrow it down
> more), the following (anonymized) code worked fine:

Are you sure? It fails for me in the same way in both 22 and 23.1.
(It seems you can require ange-ftp beforehand as a workaround.)

Message #13 received at 4614 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 4614 <at> debbugs.gnu.org, Stephen Berman <stephen.berman <at> gmx.net>
Subject: Re: bug#4614: 23.1.50; tramp-ftp-file-name-handler: Recursive `require' for feature `ange-ftp'
Date: Sat, 03 Oct 2009 14:43:53 +0200

Glenn Morris <rgm <at> gnu.org> writes:

> Stephen Berman wrote:
>
>> Until sometime within the last few weeks (sorry, I can't narrow it down
>> more), the following (anonymized) code worked fine:
>
> Are you sure? It fails for me in the same way in both 22 and 23.1.
> (It seems you can require ange-ftp beforehand as a workaround.)

Indeed. I've fixed this in tramp-ftp.el. Stephen, could you please
check, whether it works for you?

Best regards, Michael.

Message #18 received at 4614 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Stephen Berman <stephen.berman <at> gmx.net>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: 4614 <at> debbugs.gnu.org, Glenn Morris <rgm <at> gnu.org>
Subject: Re: bug#4614: 23.1.50; tramp-ftp-file-name-handler: Recursive `require' for feature `ange-ftp'
Date: Sat, 03 Oct 2009 15:43:12 +0200

On Sat, 03 Oct 2009 14:43:53 +0200 Michael Albinus <michael.albinus <at> gmx.de> wrote:

> Glenn Morris <rgm <at> gnu.org> writes:
>
>> Stephen Berman wrote:
>>
>>> Until sometime within the last few weeks (sorry, I can't narrow it down
>>> more), the following (anonymized) code worked fine:
>>
>> Are you sure? It fails for me in the same way in both 22 and 23.1.
>> (It seems you can require ange-ftp beforehand as a workaround.)
>
> Indeed. I've fixed this in tramp-ftp.el. Stephen, could you please
> check, whether it works for you?

I haven't updated yet to get your change, but I confirm the workaround
works with emacs -Q on my current build.

However, I just tried the code again with my init file on my current
build and I cannot reproduce it now.  After my init file loaded, I did
`C-h v features' and found both ange-ftp and tramp-*, which would
explain why it works.  I don't know why it didn't work when I reported
it (with the same initializations), but that failure happened in several
separate Emacs sessions, on at least two different days.  Perhaps I
loaded some function that unloaded ange-ftp, ...or it's a heisenbug.
Anyway, I'll update and try your fix, Michael.  You can wait till I
confirm it works to close the bug, but that might not be till tomorrow.
But since it appears to be unreproducible, it's probably ok to close it
now.

Steve Berman

Message #23 received at 4614 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Stephen Berman <stephen.berman <at> gmx.net>
To: 4614 <at> debbugs.gnu.org
Cc: Michael Albinus <michael.albinus <at> gmx.de>
Subject: Re: bug#4614: 23.1.50; tramp-ftp-file-name-handler: Recursive `require' for feature `ange-ftp'
Date: Sat, 03 Oct 2009 18:04:14 +0200

On Sat, 03 Oct 2009 15:43:12 +0200 Stephen Berman <stephen.berman <at> gmx.net> wrote:

> On Sat, 03 Oct 2009 14:43:53 +0200 Michael Albinus <michael.albinus <at> gmx.de> wrote:
>>
>> Indeed. I've fixed this in tramp-ftp.el. Stephen, could you please
>> check, whether it works for you?
[...]
> Anyway, I'll update and try your fix, Michael.  You can wait till I
> confirm it works to close the bug, but that might not be till tomorrow.

I just updated and confirmed it makes my code work with emacs -Q (and
also with my initializations).

Steve Berman

Message #28 received at 4614-done <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Stephen Berman <stephen.berman <at> gmx.net>
Cc: 4614-done <at> debbugs.gnu.org
Subject: Re: bug#4614: 23.1.50; tramp-ftp-file-name-handler: Recursive `require' for feature `ange-ftp'
Date: Sat, 03 Oct 2009 18:55:35 +0200

Stephen Berman <stephen.berman <at> gmx.net> writes:

> I just updated and confirmed it makes my code work with emacs -Q (and
> also with my initializations).

Thanks for testing. I've close the bug.

> Steve Berman

Best regards, Michael.

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