If set to non-nil, this will effectively disable the timer.")
-(defvar-local undo-auto-disable-boundaries nil
- "Disable the automatic addition of boundaries.
-
-If set to non-nil, `undo-boundary' will not be called
-automatically in a buffer either at the end of a command, or as a
-result of `undo-auto-current-boundary-timer'.
-
-When this is set to non-nil, it is important to ensure that
-`undo-boundary' is called frequently enough. Failure to do so
-will result in user-visible warnings that the situation is
-probably a bug.")
-
(defvar undo-auto--this-command-amalgamating nil
"Non-nil if `this-command' should be amalgamated.
This variable is set to nil by `undo-auto--boundaries' and is set
"Check recently changed buffers and add a boundary if necessary.
REASON describes the reason that the boundary is being added; see
`undo-last-boundary' for more information."
+ ;; (Bug #23785) All commands should ensure that there is an undo
+ ;; boundary whether they have changed the current buffer or not.
+ (when (eq cause 'command)
+ (add-to-list 'undo-auto--undoably-changed-buffers (current-buffer)))
(dolist (b undo-auto--undoably-changed-buffers)
(when (buffer-live-p b)
(with-current-buffer b
- (unless undo-auto-disable-boundaries
- (undo-auto--ensure-boundary cause)))))
+ (undo-auto--ensure-boundary cause))))
(setq undo-auto--undoably-changed-buffers nil))
(defun undo-auto--boundary-timer ()
This list is maintained by `undo-auto--undoable-change' and
`undo-auto--boundaries' and can be affected by changes to their
-default values.
-
-See also `undo-auto--buffer-undoably-changed'.")
+default values.")
(defun undo-auto--add-boundary ()
"Add an `undo-boundary' in appropriate buffers."
(undo-auto--boundaries
(let ((amal undo-auto--this-command-amalgamating))
- (setq undo-auto--this-command-amalgamating nil)
- (if amal
- 'amalgamate
- 'command))))
+ (setq undo-auto--this-command-amalgamating nil)
+ (if amal
+ 'amalgamate
+ 'command))))
(defun undo-auto-amalgamate ()
"Amalgamate undo if necessary.