Commit 5dadeb29 authored by Richard M. Stallman's avatar Richard M. Stallman
Browse files

(file-chase-links): New function.

(backup-buffer): Use file-chase-links.
parent 1d488950
......@@ -343,6 +343,17 @@ containing it, until no links are left at any level."
;; No, we are done!
(defun file-chase-links (filename)
"Chase links in FILENAME until a name that is not a link.
Does not examine containing directories for links,
unlike `file-truename'."
(let (tem (count 100) (newname filename))
(while (setq tem (file-symlink-p newname))
(if (= count 0)
(error "Apparent cycle of symbolic links for %s" filename))
(setq newname (expand-file-name tem (file-name-directory newname)))
(setq count (1- count)))
(defun switch-to-buffer-other-window (buffer)
"Select buffer BUFFER in another window."
......@@ -1092,12 +1103,7 @@ the modes of the new file to agree with the old modes."
backup-info backupname targets setmodes)
;; If specified name is a symbolic link, chase it to the target.
;; Thus we make the backups in the directory where the real file is.
(while (let ((tem (file-symlink-p real-file-name)))
(if tem
(setq real-file-name
(expand-file-name tem
(file-name-directory real-file-name))))
(setq real-file-name (file-chase-links real-file-name))
(setq backup-info (find-backup-file-name real-file-name)
backupname (car backup-info)
targets (cdr backup-info))
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