GNU bug report logs - #39189
26.2; recentf should save the list periodically

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: ndame <emacsuser <at> freemail.hu>
To: "bug-gnu-emacs <at> gnu.org" <bug-gnu-emacs <at> gnu.org>
Subject: 26.2; recentf should save the list periodically
Date: Sun, 19 Jan 2020 10:16:12 +0000 (GMT)

[Message part 1 (text/plain, inline)]

Currently, recentf saves the recentf list only when emacs exits. Sometimes,
when emacs crashes I lose recently opened files from the list, because
the list is not saved periodically.

Emacs should save the list every 10 minutes or so when the user is idle, so
the recentf list is preserved even if there is a crash.

[Message part 2 (text/html, inline)]

Message #8 received at 39189 <at> debbugs.gnu.org (full text, mbox):

From: Pieter van Oostrum <pieter-l <at> vanoostrum.org>
To: ndame <emacsuser <at> freemail.hu>
Cc: 39189 <at> debbugs.gnu.org
Subject: Re: bug#39189: 26.2; recentf should save the list periodically
Date: Sun, 19 Jan 2020 22:49:04 +0100

ndame <emacsuser <at> freemail.hu> writes:

> Currently, recentf saves the recentf list only when emacs exits. Sometimes,
> when emacs crashes I lose recently opened files from the list, because
> the list is not saved periodically.
>
> Emacs should save the list every 10 minutes or so when the user is idle, so
> the recentf list is preserved even if there is a crash.
>

I have the following code in my ~/.emacs.d/init.el:


(defun delayed-recentf-save-list ()
  "Save recent files list when Emacs is idle."
  (run-with-idle-timer 10 nil 'repeat-recentf-save-list))

(defun repeat-recentf-save-list ()
  "Save recent files list when it was changed and Emacs is idle."
  (unless (equal recentf-saved-list recentf-list)
	(recentf-save-list)
	(setq recentf-saved-list recentf-list))
  (run-at-time 120 nil 'delayed-recentf-save-list))

(delayed-recentf-save-list)

It saves periodically (every 2 minutes), but only when the list has changed, and it waits until Emacs is idle for 10 seconds.
-- 
Pieter van Oostrum
www: http://pieter.vanoostrum.org/
PGP key: [8DAE142BE17999C4]

Message #11 received at 39189 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: ndame <emacsuser <at> freemail.hu>
Cc: 39189 <at> debbugs.gnu.org
Subject: Re: bug#39189: 26.2; recentf should save the list periodically
Date: Thu, 23 Jan 2020 02:05:49 +0100

ndame <emacsuser <at> freemail.hu> writes:

> Currently, recentf saves the recentf list only when emacs exits. Sometimes,
> when emacs crashes I lose recently opened files from the list, because
> the list is not saved periodically.
>
> Emacs should save the list every 10 minutes or so when the user is idle, so
> the recentf list is preserved even if there is a crash.

Yes, that would be useful.

I like the semantics of `bookmark-save-flag'.  Perhaps we could
implement something more similar to that for recentf.

Best regards,
Stefan Kangas

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