Your patch would work.
Here's another patch that I wrote in the same area,
but I have not had a chance to test it, so I have not installed it.
Could you test it for me?
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/cus-edit.el,v
retrieving revision 1.228
diff -c -c -r1.228 cus-edit.el
*** cus-edit.el 19 Jul 2005 11:21:30 -0000 1.228
--- cus-edit.el 4 Aug 2005 20:47:16 -0000
***************
*** 3835,3842 ****
(setq magics (cdr magics)))))
(widget-put widget :custom-state found)))
(custom-magic-reset widget))
- ;;; The `custom-save-all' Function.
;;;###autoload
(defcustom custom-file nil
"File used for storing customization information.
--- 3835,3843 ----
(setq magics (cdr magics)))))
(widget-put widget :custom-state found)))
(custom-magic-reset widget))
+
+ ;;; Reading and writing the custom file.
;;;###autoload
(defcustom custom-file nil
"File used for storing customization information.
***************
*** 3897,3908 ****
(setq user-init-file default-init-file))
user-init-file))))
(defun custom-save-delete (symbol)
! "Visit `custom-file' and delete all calls to SYMBOL from it.
Leave point at the old location of the first such call,
! or (if there were none) at the end of the buffer."
! (let ((default-major-mode 'emacs-lisp-mode))
! (set-buffer (find-file-noselect (custom-file))))
(goto-char (point-min))
;; Skip all whitespace and comments.
(while (forward-comment 1))
--- 3898,3925 ----
(setq user-init-file default-init-file))
user-init-file))))
+ ;;;###autoload
+ (defun custom-save-all ()
+ "Save all customizations in `custom-file'."
+ (let* ((filename (custom-file))
+ (old-buffer (find-buffer-visiting filename)))
+ (with-current-buffer (or old-buffer (find-file-noselect filename))
+ (let ((inhibit-read-only t))
+ (custom-save-variables)
+ (custom-save-faces))
+ (let ((file-precious-flag t))
+ (save-buffer))
+ (unless old-buffer
+ (kill-buffer (current-buffer))))))
+
+ ;; Editing the custom file contents in a buffer.
+
(defun custom-save-delete (symbol)
! "Delete all calls to SYMBOL from the contents of the custom file.
Leave point at the old location of the first such call,
! or (if there were none) at the end of the buffer.
!
! This function does not save the buffer back in the custom file."
(goto-char (point-min))
;; Skip all whitespace and comments.
(while (forward-comment 1))
***************
*** 4122,4140 ****
(put symbol 'customized-face-comment nil)))))
;; We really should update all custom buffers here.
(custom-save-all))
!
! ;;;###autoload
! (defun custom-save-all ()
! "Save all customizations in `custom-file'."
! (let ((inhibit-read-only t))
! (custom-save-variables)
! (custom-save-faces)
! (save-excursion
! (let ((default-major-mode nil))
! (set-buffer (find-file-noselect (custom-file))))
! (let ((file-precious-flag t))
! (save-buffer)))))
!
;;; The Customize Menu.
;;; Menu support
--- 4139,4145 ----
(put symbol 'customized-face-comment nil)))))
;; We really should update all custom buffers here.
(custom-save-all))
!
;;; The Customize Menu.
;;; Menu support
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