* lisp/vc/vc-dir.el (vc-dir-hide-state): New command.

(vc-dir-hide-up-to-date): Route it to `vc-dir-hide-state'.

Fixes: debbugs:12159

2 files changed, 36 insertions, 15 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 6ccbb69a919..a55a3fc1d82 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2012-08-13  Jambunathan K  <kjambunathan@gmail.com>
+
+        * vc/vc-dir.el (vc-dir-hide-state): New command (bug#12159).
+        (vc-dir-hide-up-to-date): Route it to `vc-dir-hide-state'.
+
 2012-08-13  Stefan Monnier  <monnier@iro.umontreal.ca>
 
         * subr.el (function-get): Refine `autoload' arg so it can also
diff --git a/lisp/vc/vc-dir.el b/lisp/vc/vc-dir.el
index 7c840fd071b..455f48c50d3 100644
--- a/lisp/vc/vc-dir.el
+++ b/lisp/vc/vc-dir.el
@@ -1106,9 +1106,22 @@ outside of VC) and one wants to do some operation on it."
   (interactive "fShow file: ")
   (vc-dir-update (list (list (file-relative-name file) (vc-state file))) (current-buffer)))
 
-(defun vc-dir-hide-up-to-date ()
-  "Hide up-to-date items from display."
-  (interactive)
+(defun vc-dir-hide-state (&optional state)
+  "Hide items that are in STATE from display.
+See `vc-state' for valid values of STATE.
+
+If STATE is nil, default it to up-to-date.
+
+Interactively, if `current-prefix-arg' is non-nil, set STATE to
+state of item at point.  Otherwise, set STATE to up-to-date."
+  (interactive (list
+                (and current-prefix-arg
+                     ;; Command is prefixed.  Infer STATE from point.
+                     (let ((node (ewoc-locate vc-ewoc)))
+                       (and node (vc-dir-fileinfo->state (ewoc-data node)))))))
+  ;; If STATE is un-specified, use up-to-date.
+  (setq state (or state 'up-to-date))
+  (message "Hiding items in state \"%s\"" state)
   (let ((crt (ewoc-nth vc-ewoc -1))
         (first (ewoc-nth vc-ewoc 0)))
     ;; Go over from the last item to the first and remove the
@@ -1120,18 +1133,21 @@ outside of VC) and one wants to do some operation on it."
              (prev (ewoc-prev vc-ewoc crt))
              ;; ewoc-delete does not work without this...
              (inhibit-read-only t))
-          (when (or
-                 ;; Remove directories with no child files.
-                 (and dir
-                      (or
-                       ;; Nothing follows this directory.
-                       (not next)
-                       ;; Next item is a directory.
-                       (vc-dir-fileinfo->directory (ewoc-data next))))
-                 ;; Remove files in the up-to-date state.
-                 (eq (vc-dir-fileinfo->state data) 'up-to-date))
-            (ewoc-delete vc-ewoc crt))
-          (setq crt prev)))))
+        (when (or
+               ;; Remove directories with no child files.
+               (and dir
+                    (or
+                     ;; Nothing follows this directory.
+                     (not next)
+                     ;; Next item is a directory.
+                     (vc-dir-fileinfo->directory (ewoc-data next))))
+               ;; Remove files in specified STATE.  STATE can be a
+               ;; symbol or a user-name.
+               (equal (vc-dir-fileinfo->state data) state))
+          (ewoc-delete vc-ewoc crt))
+        (setq crt prev)))))
+
+(defalias 'vc-dir-hide-up-to-date 'vc-dir-hide-state)
 
 (defun vc-dir-kill-line ()
   "Remove the current line from display."