emacs: same-some-buffers diff option

2 files changed, 14 insertions, 0 deletions

diff --git a/.emacs.d/init.el b/.emacs.d/init.el
index acad923..a07d86f 100644
--- a/.emacs.d/init.el
+++ b/.emacs.d/init.el
@@ -52,6 +52,13 @@
 
 (pixel-scroll-precision-mode 1) ; Precision scrolling
 
+
+;; Source: https://protesilaos.com/codelog/2024-12-11-emacs-diff-save-some-buffers/
+(add-to-list 'save-some-buffers-action-alist
+             (list "d"
+                   (lambda (buffer) (diff-buffer-with-file (buffer-file-name buffer)))
+                   "show diff between the buffer and its file"))
+
 ;; Server
 (require 'server)
 (setq server-client-instructions nil) ; Keep it quiet when opening an ec
diff --git a/.emacs.d/rul-emacs.org b/.emacs.d/rul-emacs.org
index 5394b3e..8996900 100644
--- a/.emacs.d/rul-emacs.org
+++ b/.emacs.d/rul-emacs.org
@@ -157,6 +157,13 @@ General configurations related to text editing across all modes.
 (setq auto-save-no-message t) ; Do not print a message when auto-saving
 
 (pixel-scroll-precision-mode 1) ; Precision scrolling
+
+
+;; Source: https://protesilaos.com/codelog/2024-12-11-emacs-diff-save-some-buffers/
+(add-to-list 'save-some-buffers-action-alist
+             (list "d"
+                   (lambda (buffer) (diff-buffer-with-file (buffer-file-name buffer)))
+                   "show diff between the buffer and its file"))
 #+end_src
 ** Emacs server
 I used to run Emacs as a systemd daemon, but it was not too deterministic as sometimes it would break.