bug#71424: 29.3; auto-revert-use-notify buggy interaction with indirect buffers

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sat, 08 Jun 2024 13:06:28 -0400
> From: "Aaron Zeng" <z@bcc32.com>
> Cc: 71424@debbugs.gnu.org
> 
> On Sat, Jun 8, 2024, at 12:27, Eli Zaretskii wrote:
> > diff --git a/lisp/autorevert.el b/lisp/autorevert.el
> > index a23d536..ab69add 100644
> > --- a/lisp/autorevert.el
> > +++ b/lisp/autorevert.el
> > @@ -378,8 +378,11 @@ auto-revert-debug
> >  (defun auto-revert-remove-current-buffer (&optional buffer)
> >    "Remove BUFFER from `auto-revert-buffer-list'.
> >  BUFFER defaults to `current-buffer'."
> > -  (setq auto-revert-buffer-list
> > -        (delq (or buffer (current-buffer)) auto-revert-buffer-list)))
> > +  (let ((buf (or buffer (current-buffer))))
> > +    ;; Don't remove the watch if we are killing an indirect buffer.
> > +    (or (buffer-base-buffer buf)
> > +        (setq auto-revert-buffer-list
> > +              (delq buf auto-revert-buffer-list)))))
> 
> (take my reply with a grain of salt---I'm not that familiar with this code).  I think this will leave killed buffers in auto-revert-buffer-list, which seems wrong to me.

Fixed.

> >  ;;;###autoload
> >  (define-minor-mode auto-revert-mode
> > @@ -639,7 +642,9 @@ auto-revert-set-timer
> > 
> >  (defun auto-revert-notify-rm-watch ()
> >    "Disable file notification for current buffer's associated file."
> > -  (when-let ((desc auto-revert-notify-watch-descriptor))
> > +  (when-let ((desc
> > +              (and (buffer-base-buffer)
> > +                   auto-revert-notify-watch-descriptor)))
> >      (setq auto-revert--buffer-by-watch-descriptor
> >            (assoc-delete-all desc auto-revert--buffer-by-watch-descriptor))
> >      (ignore-errors
> 
> Maybe I'm reading the code wrong, but should this be (not (buffer-base-buffer)) instead?

Also fixed.

I'm therefore closing this bug.