From: Emanuel Berg <embe8573@student.uu.se>
To: help-gnu-emacs@gnu.org
Subject: How to change and save a read-only file?
Date: Wed, 20 Nov 2013 04:27:34 +0100 [thread overview]
Message-ID: <87wqk3da68.fsf@nl106-137-194.student.uu.se> (raw)
It seems the thread that the subject refers to is
inaccessible by Gnus, so perhaps the OP won't read this
anyway, but I like to say it nonetheless, because this
bug almost drove me insane.
The below function cannot be used on symbolic links,
because with (buffer-file-name), you'll get the name
(and path) of the *link*...
When used to edit and save such a link that points to a
file not in $HOME, the result is that the link is
*replaced* by the file, and the file (at its original
place), disappears (?).
The code, with the bug:
(defun su-edit ()
"Edit the current buffer file as superuser."
(interactive)
(let ((window-start (window-start))
(point (point))
(mark (if mark-active (region-beginning) nil)) )
(find-alternate-file (format "/sudo::%s" (buffer-file-name)))
(if mark (set-mark mark))
(goto-char point)
(set-window-start nil window-start) ; nil - the selected window
))
The solution, I hope, is:
(file-truename (buffer-file-name))
--
Emanuel Berg, programmer-for-rent. CV, projects, etc at uXu
underground experts united: http://user.it.uu.se/~embe8573
next reply other threads:[~2013-11-20 3:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-20 3:27 Emanuel Berg [this message]
2013-11-20 14:22 ` How to change and save a read-only file? Kevin Rodgers
[not found] ` <mailman.6640.1384957268.10748.help-gnu-emacs@gnu.org>
2013-11-20 16:24 ` Emanuel Berg
[not found] <mailman.2780.1372497288.22516.help-gnu-emacs@gnu.org>
2013-06-29 13:10 ` Emanuel Berg
2013-06-29 13:30 ` Emanuel Berg
2013-07-01 22:35 ` Richard Copley
[not found] ` <mailman.14.1372718151.12400.help-gnu-emacs@gnu.org>
2013-07-01 23:42 ` Emanuel Berg
2013-07-19 12:36 ` Emanuel Berg
-- strict thread matches above, loose matches on Subject: below --
2013-06-29 9:14 Marius Hofert
2013-06-29 9:20 ` Peter Dyballa
2013-06-29 11:04 ` Thorsten Jolitz
2013-06-29 11:16 ` Jude DaShiell
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