GNU bug report logs - #29972
25.3; dired-hide-details-mode does not persist in desktop session

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Message #8 received at 29972 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Yuen Ho Wong <wyuenho <at> gmail.com>
Cc: 29972 <at> debbugs.gnu.org
Subject: Re: bug#29972: 25.3;
 dired-hide-details-mode does not persist in desktop session
Date: Thu, 04 Jan 2018 18:42:18 +0200

> From: Yuen Ho Wong <wyuenho <at> gmail.com>
> Date: Thu, 04 Jan 2018 01:11:13 +0000
> 
> How to reproduce:
> 1. Turn on `desktop-save-mode`
> 2. dired some directory
> 3. Press `(` to turn on `dired-hide-details-mode`
> 4. C-x C-c, when asked to save desktop, choose yes
> 5. Launch emacs again, desktop restored the dired buffer but not
> `dired-hide-details-mode`
> 
> What went wrong:
> `dired-hide-details-mode`'s definition does not declare a lighter or a
> keymap, thus it is not added to `minor-mode-alist` by
> `define-minor-mode`. So when `desktop` tries to get the buffer's info to
> save to `.emacs.desktop` via `desktop-buffer-info`,
> `dired-hide-details-mode` does not exist, and thus not saved to the
> session file.
> 
> Fix:
> Just declare an empty lighter. I've attached a patch for this.

Can't you instead customize desktop-locals-to-save?

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