Remove commented out code.

(vc-derived-from-dir-mode): Remove, unused.
(vc-version-diff, vc-diff): Consistently pass t to vc-deduce-fileset.

2 files changed, 8 insertions, 32 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index ab312990347..424d9860ac7 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,9 @@
+2009-10-03  Dan Nicolaescu  <dann@ics.uci.edu>
+
+        * vc.el: Remove commented out code.
+        (vc-derived-from-dir-mode): Remove, unused.
+        (vc-version-diff, vc-diff): Consistently pass t to vc-deduce-fileset.
+
 2009-10-03  Michael Albinus  <michael.albinus@gmx.de>
 
         * net/tramp-ftp.el (tramp-ftp-file-name-handler): Disable
diff --git a/lisp/vc.el b/lisp/vc.el
index 8dfe34a4cb1..456b85977a1 100644
--- a/lisp/vc.el
+++ b/lisp/vc.el
@@ -861,32 +861,8 @@ Within directories, only files already under version control are noticed."
       (unless (file-directory-p node) (push node flattened)))
     (nreverse flattened)))
 
-(defun vc-derived-from-dir-mode (&optional buffer)
-  "Are we in a VC-directory buffer, or do we have one as an ancestor?"
-  (let ((buffer (or buffer (current-buffer))))
-    (cond ((derived-mode-p 'vc-dir-mode) t)
-          (vc-parent-buffer (vc-derived-from-dir-mode vc-parent-buffer))
-          (t nil))))
-
 (defvar vc-dir-backend)
 
-;; FIXME: this is not functional, commented out.
-;; (defun vc-deduce-fileset (&optional observer)
-;;   "Deduce a set of files and a backend to which to apply an operation and
-;; the common state of the fileset.  Return (BACKEND . FILESET)."
-;;   (let* ((selection (vc-dispatcher-selection-set observer))
-;;       (raw (car selection))          ;; Selection as user made it
-;;       (cooked (cdr selection))       ;; Files only
-;;          ;; FIXME: Store the backend in a buffer-local variable.
-;;          (backend (if (vc-derived-from-dir-mode (current-buffer))
-;;                    ;; FIXME: this should use vc-dir-backend from
-;;                    ;; the *vc-dir* buffer.
-;;                       (vc-responsible-backend default-directory)
-;;                     (assert (and (= 1 (length raw))
-;;                                  (not (file-directory-p (car raw)))))
-;;                     (vc-backend (car cooked)))))
-;;      (cons backend selection)))
-
 (declare-function vc-dir-current-file "vc-dir" ())
 (declare-function vc-dir-deduce-fileset "vc-dir" (&optional state-model-only-files))
 
@@ -1577,15 +1553,9 @@ returns t if the buffer had changes, nil otherwise."
     (error "Not a valid revision range"))
   ;; Yes, it's painful to call (vc-deduce-fileset) again.  Alas, the
   ;; placement rules for (interactive) don't actually leave us a choice.
-  (vc-diff-internal t (vc-deduce-fileset) rev1 rev2
+  (vc-diff-internal t (vc-deduce-fileset t) rev1 rev2
                     (called-interactively-p 'interactive)))
 
-;; (defun vc-contains-version-controlled-file (dir)
-;;   "Return t if DIR contains a version-controlled file, nil otherwise."
-;;   (catch 'found
-;;     (mapc (lambda (f) (and (not (file-directory-p f)) (vc-backend f) (throw 'found 't))) (directory-files dir))
-;;     nil))
-
 ;;;###autoload
 (defun vc-diff (historic &optional not-urgent)
   "Display diffs between file revisions.
@@ -1599,7 +1569,7 @@ saving the buffer."
   (if historic
       (call-interactively 'vc-version-diff)
     (when buffer-file-name (vc-buffer-sync not-urgent))
-    (vc-diff-internal t (vc-deduce-fileset) nil nil
+    (vc-diff-internal t (vc-deduce-fileset t) nil nil
                       (called-interactively-p 'interactive))))
 
 ;;;###autoload