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;; Originally from stevey, adapted to support moving to a new directory.
;; http://stackoverflow.com/questions/384284/can-i-rename-an-open-file-in-emacs
(defun rename-file-and-buffer (new-name)
"Renames both current buffer and file it's visiting to NEW-NAME."
(interactive
(progn
(if (not (buffer-file-name))
(error "Buffer '%s' is not visiting a file!" (buffer-name)))
(list (read-file-name (format "Rename %s to: " (file-name-nondirectory
(buffer-file-name)))))))
(if (equal new-name "")
(error "Aborted rename"))
(setq new-name (if (file-directory-p new-name)
(expand-file-name (file-name-nondirectory
(buffer-file-name))
new-name)
(expand-file-name new-name)))
;; If the file isn't saved yet, skip the file rename, but still update the
;; buffer name and visited file.
(if (file-exists-p (buffer-file-name))
(rename-file (buffer-file-name) new-name 1))
(let ((was-modified (buffer-modified-p)))
;; This also renames the buffer, and works with uniquify
(set-visited-file-name new-name)
(if was-modified
(save-buffer)
;; Clear buffer-modified flag caused by set-visited-file-name
(set-buffer-modified-p nil))
(message "Renamed to %s." new-name)))
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