* vc.el (vc-exec-after): Move setting mode-line-process in the

busy case ...
(vc-set-mode-line-busy-indicator): ... in this new function.
(vc-status-refresh): Call vc-set-mode-line-busy-indicator.
(vc-update-vc-status-buffer): Reset mode-line-process.
(vc-status-mark-all-files, vc-status-unmark-all-files): Change to
mark/unmark all the files with the same state as the current one.
With a prefix argument mark/unmark all files.
(vc-status-mode-menu): Adjust strings.
(vc-update-vc-status-buffer): Only do something when the argument
is not nil.
(vc-status-kill-dir-status-process): New function.
(vc-status-mode-map): Bind it.
(vc-status-process-buffer): New variable.
(vc-status-mode): Make it local.
(vc-status-refresh): Set it.

* vc-hg.el (vc-hg-dir-status):
* vc-git.el (vc-git-dir-status):
* vc-svn.el (vc-svn-dir-status): Return the buffer in which the
command is run.

5 files changed, 43 insertions, 10 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 61ba0356e8c..33298beba9b 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -9,6 +9,18 @@
         mark/unmark all the files with the same state as the current one.
         With a prefix argument mark/unmark all files.
         (vc-status-mode-menu): Adjust strings.
+        (vc-update-vc-status-buffer): Only do something when the argument
+        is not nil.
+        (vc-status-kill-dir-status-process): New function.
+        (vc-status-mode-map): Bind it.
+        (vc-status-process-buffer): New variable.
+        (vc-status-mode): Make it local.
+        (vc-status-refresh): Set it.
+
+        * vc-hg.el (vc-hg-dir-status):
+        * vc-git.el (vc-git-dir-status):
+        * vc-svn.el (vc-svn-dir-status): Return the buffer in which the
+        command is run.
 
 2008-02-22  Glenn Morris  <rgm@gnu.org>
 
diff --git a/lisp/vc-git.el b/lisp/vc-git.el
index c8c63a22181..c2295ddaddc 100644
--- a/lisp/vc-git.el
+++ b/lisp/vc-git.el
@@ -252,7 +252,8 @@
                     "--directory"
                     "--exclude-per-directory=.gitignore")
     (vc-exec-after
-     `(vc-git-after-dir-status (quote ,update-function) ,status-buffer))))
+     `(vc-git-after-dir-status (quote ,update-function) ,status-buffer))
+    (current-buffer)))
 
 ;;; STATE-CHANGING FUNCTIONS
 
diff --git a/lisp/vc-hg.el b/lisp/vc-hg.el
index 86a9b34f08e..e73537a4bb8 100644
--- a/lisp/vc-hg.el
+++ b/lisp/vc-hg.el
@@ -518,7 +518,8 @@ REV is the revision to check out into WORKFILE."
     (erase-buffer)
     (vc-hg-command (current-buffer) 'async dir "status")
     (vc-exec-after
-     `(vc-hg-after-dir-status (quote ,update-function) ,status-buffer))))
+     `(vc-hg-after-dir-status (quote ,update-function) ,status-buffer))
+    (current-buffer)))
 
 ;; XXX this adds another top level menu, instead figure out how to
 ;; replace the Log-View menu.
diff --git a/lisp/vc-svn.el b/lisp/vc-svn.el
index 52fb1a515e1..37a5dfb1d3e 100644
--- a/lisp/vc-svn.el
+++ b/lisp/vc-svn.el
@@ -185,7 +185,8 @@ RESULT is a list of conses (FILE . STATE) for directory DIR."
                        (generate-new-buffer-name " *vc svn status*"))
     (vc-svn-command (current-buffer) 'async nil "status")
     (vc-exec-after
-     `(vc-svn-after-dir-status (quote ,callback) ,buffer))))
+     `(vc-svn-after-dir-status (quote ,callback) ,buffer))
+    (current-buffer)))
 
 (defun vc-svn-working-revision (file)
   "SVN-specific version of `vc-working-revision'."
diff --git a/lisp/vc.el b/lisp/vc.el
index a12211b7c21..c8321e816ca 100644
--- a/lisp/vc.el
+++ b/lisp/vc.el
@@ -174,6 +174,8 @@
 ;;   this list, it should be run asynchronously.  When RESULT is
 ;;   computed, it should be passed back by doing:
 ;;       (funcall UPDATE-FUNCTION RESULT STATUS-BUFFER)
+;;   Return the buffer used for the asynchronous call.  This buffer
+;;   is used to kill the status update process on demand.
 ;;   This function is used by vc-status, a replacement for vc-dired.
 ;;   vc-status is still under development, and is NOT feature
 ;;   complete.  As such, the requirements for this function might
@@ -2715,6 +2717,7 @@ With prefix arg READ-SWITCHES, specify a value to override
     (define-key map "o" 'vc-status-find-file-other-window)
     (define-key map "q" 'bury-buffer)
     (define-key map "g" 'vc-status-refresh)
+    (define-key map "\C-c\C-c" 'vc-status-kill-dir-status-process)
     ;; Not working yet.  Functions like vc-status-find-file need to
     ;; find the file from the mouse position, not `point'.
     ;; (define-key map [(down-mouse-3)] 'vc-status-menu)
@@ -2785,6 +2788,9 @@ With prefix arg READ-SWITCHES, specify a value to override
   (interactive "e")
   (popup-menu vc-status-mode-menu e))
 
+(defvar vc-status-process-buffer nil
+  "The buffer used for the asynchronous call that computes the VC status.")
+
 (defun vc-status-mode ()
   "Major mode for VC status.
 \\{vc-status-mode-map}"
@@ -2796,6 +2802,7 @@ With prefix arg READ-SWITCHES, specify a value to override
         (backend (vc-responsible-backend default-directory))
         entries)
     (erase-buffer)
+    (set (make-local-variable 'vc-status-process-buffer) nil)
     (set (make-local-variable 'vc-status)
          (ewoc-create #'vc-status-printer
                       (vc-status-headers backend default-directory)))
@@ -2805,10 +2812,11 @@ With prefix arg READ-SWITCHES, specify a value to override
 
 (defun vc-update-vc-status-buffer (entries buffer)
   (with-current-buffer buffer
-    (dolist (entry entries)
-      (ewoc-enter-last vc-status
-                       (vc-status-create-fileinfo (cdr entry) (car entry))))
-    (ewoc-goto-node vc-status (ewoc-nth vc-status 0))
+    (when entries
+      (dolist (entry entries)
+        (ewoc-enter-last vc-status
+                         (vc-status-create-fileinfo (cdr entry) (car entry))))
+      (ewoc-goto-node vc-status (ewoc-nth vc-status 0)))
     (setq mode-line-process nil)))
 
 (defun vc-status-refresh ()
@@ -2822,9 +2830,19 @@ With prefix arg READ-SWITCHES, specify a value to override
     ;; be asynchronous.  It should compute the results and call the
     ;; function passed as a an arg to update the vc-status buffer with
     ;; the results.
-    (vc-call-backend
-     backend 'dir-status default-directory
-     #'vc-update-vc-status-buffer (current-buffer))))
+    (setq vc-status-process-buffer
+          (vc-call-backend
+           backend 'dir-status default-directory
+           #'vc-update-vc-status-buffer (current-buffer)))))
+
+(defun vc-status-kill-dir-status-process ()
+  "Kill the temporary buffer and associated process."
+  (interactive)
+  (when (and (bufferp vc-status-process-buffer) 
+             (buffer-live-p vc-status-process-buffer))
+    (let ((proc (get-buffer-process vc-status-process-buffer)))
+      (when proc (delete-process proc))
+      (setq mode-line-process nil))))
 
 (defun vc-status-next-line (arg)
   "Go to the next line.