* lisp/vc/vc.el (vc-diff-internal): Set `revert-buffer-function'

buffer-locally to lambda that re-runs the vc diff command.  (Bug#6447)

2 files changed, 9 insertions, 0 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 23d7045532c..6e19fb7b650 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,9 @@
+2010-06-24  Juri Linkov  <juri@jurta.org>
+
+        * vc/vc.el (vc-diff-internal): Set `revert-buffer-function'
+        buffer-locally to lambda that re-runs the vc diff command.
+        (Bug#6447)
+
 2010-06-24  Chong Yidong  <cyd@stupidchicken.com>
 
         * kmacro.el (kmacro-call-macro): Don't issue hint message if the
diff --git a/lisp/vc/vc.el b/lisp/vc/vc.el
index 0d6584fb343..ae3f6a0ed38 100644
--- a/lisp/vc/vc.el
+++ b/lisp/vc/vc.el
@@ -1547,6 +1547,9 @@ returns t if the buffer had changes, nil otherwise."
           (message "%s" (cdr messages))
           nil)
       (diff-mode)
+      (set (make-local-variable 'revert-buffer-function)
+           `(lambda (ignore-auto noconfirm)
+              (vc-diff-internal ,async ',vc-fileset ,rev1 ,rev2 ,verbose)))
       ;; Make the *vc-diff* buffer read only, the diff-mode key
       ;; bindings are nicer for read only buffers. pcl-cvs does the
       ;; same thing.