From 5b78ae2ec9fc4a21d442c18a9fa794f9e921e00f Mon Sep 17 00:00:00 2001
From: Case Duckworth
Date: Sat, 2 Jan 2021 22:50:02 -0600
Subject: Add a timer to recentf-mode

Autosave the recentf-list, but only when no Emacs frame is focused.
---
 config.org | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/config.org b/config.org
index 0fa3911..eed895a 100644
--- a/config.org
+++ b/config.org
@@ -799,12 +799,19 @@ from [[https://www.reddit.com/r/emacs/comments/km9by4/weekly_tipstricketc_thread
   (recentf-mode +1)
 
   ;; save recentf list when focusing away
-  (defun acdw/save-recentf-when-nonfocused ()
-    "Save `recentf-file' when out of focus."
-    (acdw/when-unfocused #'recentf-save-list))
+  (defun acdw/maybe-save-recentf ()
+    "Save `recentf-file' when out of focus, but only if we haven't
+  in five minutes."
+    (defvar recentf-last-save (time-convert nil 'integer)
+      "How long it's been since we last saved the recentf list.")
+
+    (when (> (time-convert (time-since recentf-last-save) 'integer)
+	     (* 60 5))
+      (setq recentf-last-save (time-convert nil 'integer))
+      (acdw/when-unfocused #'recentf-save-list)))
 
   (add-function :after after-focus-change-function
-		#'acdw/save-recentf-when-nonfocused)
+		#'acdw/maybe-save-recentf)
 #+END_SRC
 
 ** Undo
-- 
cgit 1.4.1-21-gabe81