GNU bug report logs - #33458
27.0.50; dired loses position when reverted from outside place

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From: v88m <at> posteo.net
To: martin rudalics <rudalics <at> gmx.at>, Stephen Berman <stephen.berman <at> gmx.net>
Cc: 33458 <at> debbugs.gnu.org
Subject: bug#33458: 27.0.50; dired loses position when reverted from outside place
Date: Fri, 23 Nov 2018 22:55:11 +0300

On Fri, Nov 23 2018, martin rudalics wrote:

>    4. Let's check position: M-: (with-current-buffer "DIR-A" (point)) ;=> 225, so cursor in the right place.
>
> evaluate
>
> M-: (window-prev-buffers)
>
> You should find your DIR-A together with two markers, the second of
> them should be 225.  Correct?  Now do your

Right.

>    5. Revert original buffer: M-: (with-current-buffer "DIR-A" (dired-revert))
>
> and evaluate
>
> M-: (window-prev-buffers)
>
> again.  The second marker will be at 1 because reverting DIR-A just
> nuked it.

Indeed.

> The only solution I can think of is to have 'dired-restore-positions'
> scan 'window-prev-buffers' for each window and if it finds the buffer
> that was reverted there, update the associated point position to the
> position of the buffer's point it calculated itself.  If you want to
> give it a try I can tell you everything you need to know.

Thank you! Currently I need some time to conceive this info.

-- 
WBR, Yuri

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