GNU bug report logs - #7289
Tramp changes ownership of remote file when saving

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#7289: closed (Tramp changes ownership of remote file when saving)
Date: Fri, 29 Oct 2010 19:28:02 +0000

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Your message dated Fri, 29 Oct 2010 21:31:32 +0200
with message-id <87tyk4pzhn.fsf <at> gmx.de>
and subject line Re: bug#7289: Tramp changes ownership of remote file when saving
has caused the GNU bug report #7289,
regarding Tramp changes ownership of remote file when saving
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
7289: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7289
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Contact help-debbugs <at> gnu.org with problems

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From: Jo Vermeulen <jo.vermeulen <at> gmail.com>
To: submit <submit <at> debbugs.gnu.org>
Subject: Tramp changes ownership of remote file when saving
Date: Wed, 27 Oct 2010 12:46:11 +0200

Package: emacs
Version: 23.1
Severity: important

When editing a remote file over SSH using tramp, emacs changes the ownership
of the file. I was logged in as root, and the file had ownership svn:svn.
After saving, however, emacs changed the ownership to root:root. The backup
file (filename~) did have the user/group settings however.

This behavior is quite annoying, as one often doesn't realize the ownership
has changed. This might result in services that are unable to read their
basic configuration files after they have been edited remotely with emacs.

P.S.: my apologies for double-posting, I first thought the package name
should be tramp instead of emacs.

Here's more information about my specific version of Emacs (running on
Ubuntu 10.10):

In GNU Emacs 23.1.1 (i486-pc-linux-gnu, GTK+ Version 2.20.0)
 of 2010-03-29 on rothera, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.10900000
configured using `configure  '--build=i486-linux-gnu'
'--host=i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib'
'--libexecdir=/usr/lib' '--localstatedir=/var/lib'
'--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes'
'--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.1/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.1/leim'
'--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars'
'build_alias=i486-linux-gnu' 'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -g
-O2' 'LDFLAGS=-g' 'CPPFLAGS=''

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.utf8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Help

Minor modes in effect:
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t
  view-mode: t

Recent input:
C-x C-d <backspace> <backspace> / u s r <tab> s h <tab>
e m <tab> a <tab> / <tab> <tab> 2 3 <tab> e <tab> p
r <backspace> <S-backspace> P R <tab> <return> C-x
o C-x o C-x o C-x 1 <down> <return> <right> <return>
<return> <up> <down> M-x d i r e <tab> - <tab> m <tab>
<backspace> <tab> <backspace> o <tab> d <tab> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> w d i r <tab> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> d i r e d - m <tab> <tab> <backspace>
<backspace> <backspace> <return> <return> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> C-s P R O B L E M <return>
<return> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <up> <up> <up> <up> <up> <down>
<end> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> C-s t r a m p C-s
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> r e m o t e C-s C-s C-s s s <backspace>
<backspace> C-s C-s C-s C-s C-s C-s C-s C-s C-s C-s
C-s C-x k <return> C-x k <return> M-x r e p o r t -
e m a c s <tab> <return>

Recent messages:
Loading /etc/emacs/site-start.d/50org-mode.el (source)...done
Loading /etc/emacs/site-start.d/50psvn.el (source)...done
Loading /etc/emacs/site-start.d/50w3m-el.el (source)...done
For information about GNU Emacs and the GNU system, type C-h C-a.
Making completion list... [2 times]
help-follow: No cross-reference here [3 times]
Making completion list... [2 times]
Mark saved where search started
Note: file is write protected
Mark saved where search started

[Message part 3 (message/rfc822, inline)]

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Jo Vermeulen <jo.vermeulen <at> gmail.com>
Cc: 7289-done <at> debbugs.gnu.org, Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: Re: bug#7289: Tramp changes ownership of remote file when saving
Date: Fri, 29 Oct 2010 21:31:32 +0200

Jo Vermeulen <jo.vermeulen <at> gmail.com> writes:

> I changed it, and it seems to work now. However, I get this error (in
> *Messages*):
>
> apply: Symbol's value as variable is void: local-copy

I see. The lines

	  (when (and (stringp local-copy)
		     (or remote-copy (null tramp-temp-buffer-file-name)))
	    (delete-file local-copy))

were added later as with Emacs 23.1, you can discard them.

Thanks for testing, I'll commit the patch (and close the bug).

> Cheers,
>
> -- Jo

Best regards, Miochael.

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