GNU bug report logs - #25125
25.1; copyright-fix-years pollutes undo history

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Message #15 received at 25125 <at> debbugs.gnu.org (full text, mbox):

From: Lluís Vilanova <vilanova <at> ac.upc.edu>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 25125 <at> debbugs.gnu.org
Subject: Re: bug#25125: 25.1; copyright-fix-years pollutes undo history
Date: Sat, 27 Jul 2019 20:35:48 +0200

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On Sat, Jul 27, 2019, 13:41 Lars Ingebrigtsen <larsi <at> gnus.org> wrote:

> Lluís Vilanova <vilanova <at> ac.upc.edu> writes:
>
> > I have setup `copyright-update' to run every time I save a file in
> prog-mode:
> >
> >   (add-hook 'prog-mode-hook
> >             (lambda ()
> >               (add-hook 'before-save-hook
> >                         (lambda ()
> >                             (save-excursion (copyright-fix-years))))))
> >
> > Every time it runs in a file that has a copyright, a change is recorded
> into the
> > undo history, even if the function performed no changes at all (i.e., the
> > copyright years were already correct).
> >
> > This makes it quite annoying to go back my modifications history,
> > since it keeps jumping up and down between the header and the actual
> > code.
>
> (I'm going through older Emacs bug reports that have received no
> response.)
>
> I tried testing this by just saying `M-x copyright-fix-years' in a file
> where it doesn't do any changes (like lisp/emacs-lisp/edebug.el).  It
> didn't record anything in the undo history, so I'm unable to reproduce
> this bug in Emacs 27.  Are you still seeing this?
>

I do not use this anymore, so I do not know. I think it's safe to close it.

Thanks,
Lluís

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