From: Paul Eggert <eggert@cs.ucla.edu>
To: Glenn Morris <rgm@gnu.org>, emacs-devel@gnu.org
Subject: Re: vc-mode-line ancient, root-specific code for buffer-read-only
Date: Tue, 18 Dec 2018 22:16:50 -0800 [thread overview]
Message-ID: <999b7b9b-4c91-a517-4c65-b88998fe3b6f@cs.ucla.edu> (raw)
In-Reply-To: <irtvjam87w.fsf@fencepost.gnu.org>
Glenn Morris wrote:
>
> I would like to suggest just removing that vc-mode-line code.
> It's for locking VCS, is buggy, and doesn't even make sense.
> root cannot "write anything", unless we are concerned with odd cases
> like a file being writable by other but not owner. Ie locked files would
> be marked read-only for root anyway.
The code is indeed for locking VCs which are almost entirely obsolete now. And
the code has problems if the file has been deleted, as you noted. So I would
favor removing the code as being more trouble than it's worth.
On the other hand I don't follow the comment "root cannot 'write anything'".
Traditionally, root can write any file that is writable to any user (and even
some files that no other users can write to), so in that sense roote can "write
anything".
next prev parent reply other threads:[~2018-12-19 6:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-19 4:49 vc-mode-line ancient, root-specific code for buffer-read-only Glenn Morris
2018-12-19 6:16 ` Paul Eggert [this message]
2018-12-19 9:18 ` Andreas Schwab
2018-12-19 18:10 ` Glenn Morris
2018-12-19 21:23 ` Stefan Monnier
2018-12-19 22:41 ` Paul Eggert
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