Make delete-file-and-buffer vc aware

core/prelude-core.el

@@ -197,9 +197,12 @@ there's a region, all lines that region covers will be duplicated."
   (interactive)
   (let ((filename (buffer-file-name)))
     (when filename
-      (delete-file filename)
-      (message "Deleted file %s" filename)))
-  (kill-buffer))
+      (if (vc-backend filename)
+          (vc-delete-file filename)
+        (progn
+          (delete-file filename)
+          (message "Deleted file %s" filename)
+          (kill-buffer))))))
 
 (defun prelude-view-url ()
   "Open a new buffer containing the contents of URL."

core/prelude-mode.el

@@ -51,6 +51,7 @@
     (define-key map (kbd "C-c u") 'prelude-view-url)
     (define-key map (kbd "C-c e") 'prelude-eval-and-replace)
     (define-key map (kbd "C-c s") 'prelude-swap-windows)
+    (define-key map (kbd "C-c D") 'prelude-delete-file-and-buffer)
     (define-key map (kbd "C-c d") 'prelude-duplicate-current-line-or-region)
     (define-key map (kbd "C-c r") 'prelude-rename-file-and-buffer)
     (define-key map (kbd "C-c t") 'prelude-visit-term-buffer)