bug#39189: 26.2; recentf should save the list periodically

[Pieter van Oostrum]

ndame <emacsuser@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]