;; Author: FSF (see vc.el for full credits)
;; Maintainer: Andre Spiegel <spiegel@gnu.org>
-;; $Id: vc-hooks.el,v 1.162 2004/03/21 15:44:39 spiegel Exp $
+;; $Id: vc-hooks.el,v 1.167 2004/04/16 10:21:51 spiegel Exp $
;; This file is part of GNU Emacs.
"set `vc-handled-backends' to nil to disable VC.")
(defvar vc-master-templates ())
-(make-obsolete-variable 'vc-master-templates
- "to define master templates for a given BACKEND, use
+(make-obsolete-variable 'vc-master-templates
+ "to define master templates for a given BACKEND, use
vc-BACKEND-master-templates. To enable or disable VC for a given
BACKEND, use `vc-handled-backends'.")
(defmacro vc-call (fun file &rest args)
;; BEWARE!! `file' is evaluated twice!!
`(vc-call-backend (vc-backend ,file) ',fun ,file ,@args))
-
\f
(defsubst vc-parse-buffer (pattern i)
"Find PATTERN in the current buffer and return its Ith submatch."
(defun vc-default-workfile-unchanged-p (backend file)
"Check if FILE is unchanged by diffing against the master version.
Return non-nil if FILE is unchanged."
- (let ((diff-args-length
- (length (cadr (symbol-function
- (vc-find-backend-function backend 'diff))))))
- (zerop (if (> diff-args-length 4)
- ;; If the implementation supports it, let the output
- ;; go to *vc*, not *vc-diff*, since this is an internal call.
- (vc-call diff file nil nil "*vc*")
- ;; for backward compatibility
- (vc-call diff file)))))
+ (zerop (condition-case err
+ ;; If the implementation supports it, let the output
+ ;; go to *vc*, not *vc-diff*, since this is an internal call.
+ (vc-call diff file nil nil "*vc*")
+ (wrong-number-of-arguments
+ ;; If this error came from the above call to vc-BACKEND-diff,
+ ;; try again without the optional buffer argument (for
+ ;; backward compatibility). Otherwise, resignal.
+ (if (or (not (eq (cadr err)
+ (indirect-function
+ (vc-find-backend-function (vc-backend file)
+ 'diff))))
+ (not (eq (caddr err) 4)))
+ (signal (car err) (cdr err))
+ (vc-call diff file))))))
(defun vc-workfile-version (file)
"Return the version level of the current workfile FILE.
;; from a previous visit.
(vc-file-clearprops buffer-file-name)
(let ((backend (vc-backend buffer-file-name)))
- (if backend (vc-call-backend backend find-file-not-found-hook))))
+ (if backend (vc-call-backend backend 'find-file-not-found-hook))))
(defun vc-default-find-file-not-found-hook (backend)
(if (yes-or-no-p