GNU bug report logs - #18125
file-precious-flag breaks symlinks

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From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 18125 <at> debbugs.gnu.org
Subject: bug#18125: file-precious-flag breaks symlinks
Date: Fri, 04 Dec 2020 12:40:19 +0100

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

> touch foo
> ln -s foo bar
> emacs-24.3.92  -Q --eval '(setq file-precious-flag t)' bar
> change bar and save
>    -> bar is no longer a symlink
>
> AFAICS, it has always (since at least 22.3) been like this.
> Does it have to be, though? Why can't it overwrite the target of the link?

This behaviour is still present in Emacs 28.

> In any case, the doc only mentions breaking hardlinks.
>
> Setting find-file-visit-truename non-nil avoids the problem.

I'm not sure whether this is a bug or whether it makes sense.  I'm
leaning towards...  bug?  Perhaps?  Anybody got an opinion here?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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