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[bpt/emacs.git] / lisp / vc-arch.el

diff --git a/lisp/vc-arch.el b/lisp/vc-arch.el
index ecaee28..58a3bd0 100644 (file)
--- a/lisp/vc-arch.el
+++ b/lisp/vc-arch.el
@@ -1,6 +1,6 @@
 ;;; vc-arch.el --- VC backend for the Arch version-control system
 
-;; Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+;; Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
 
 ;; Author:      FSF (see vc.el for full credits)
 ;; Maintainer:  Stefan Monnier <monnier@gnu.org>
@@ -193,10 +193,12 @@ Only the value `maybe' can be trusted :-(."
 (defun vc-arch-root (file)
   "Return the root directory of a Arch project, if any."
   (or (vc-file-getprop file 'arch-root)
-      (vc-file-setprop
-       ;; Check the =tagging-method, in case someone naively manually
-       ;; creates a {arch} directory somewhere.
-       file 'arch-root (vc-find-root file "{arch}/=tagging-method"))))
+      ;; Check the =tagging-method, in case someone naively manually
+      ;; creates a {arch} directory somewhere.
+      (let ((root (vc-find-root file "{arch}/=tagging-method")))
+       (when root
+         (vc-file-setprop
+          file 'arch-root root)))))
 
 (defun vc-arch-register (files &optional rev comment)
   (if rev (error "Explicit initial revision not supported for Arch"))
@@ -345,9 +347,11 @@ Return non-nil if FILE is unchanged."
   (save-excursion
     (let ((rej (concat buffer-file-name ".rej")))
       (when (and buffer-file-name (vc-arch-diff3-rej-p rej))
-       (if (not (re-search-forward "^<<<<<<< " nil t))
-           ;; The .rej file is obsolete.
-           (condition-case nil (delete-file rej) (error nil)))))))
+       (unless (re-search-forward "^<<<<<<< " nil t)
+         ;; The .rej file is obsolete.
+         (condition-case nil (delete-file rej) (error nil))
+         ;; Remove the hook so that it is not called multiple times.
+         (remove-hook 'after-save-hook 'vc-arch-delete-rej-if-obsolete t))))))
 
 (defun vc-arch-find-file-hook ()
   (let ((rej (concat buffer-file-name ".rej")))