;; Save old version of a to be overwritten file TO.
;; `dired-overwrite-confirmed' and `overwrite-backup-query' are fluid vars
;; from dired-create-files.
- (if (and dired-backup-overwrite
- dired-overwrite-confirmed
- (or (eq 'always dired-backup-overwrite)
- (dired-query 'overwrite-backup-query
- (format "Make backup for existing file `%s'? " to))))
- (let ((backup (car (find-backup-file-name to))))
- (rename-file to backup 0) ; confirm overwrite of old backup
- (dired-relist-entry backup))))
+ (let (backup)
+ (if (and dired-backup-overwrite
+ dired-overwrite-confirmed
+ (setq backup (car (find-backup-file-name to)))
+ (or (eq 'always dired-backup-overwrite)
+ (dired-query 'overwrite-backup-query
+ (format "Make backup for existing file `%s'? " to))))
+ (progn
+ (rename-file to backup 0) ; confirm overwrite of old backup
+ (dired-relist-entry backup)))))
;;;###autoload
(defun dired-copy-file (from to ok-flag)