cache_tree_update: give an option to update cache-tree only.
When the extra "dryrun" parameter is true, cache_tree_update()
recomputes the invalid entry but does not actually creates
new tree object.
Signed-off-by: Junio C Hamano <junkio@cox.net>
diff --git a/cache-tree.h b/cache-tree.h
index 5d824df..72c6480 100644
--- a/cache-tree.h
+++ b/cache-tree.h
@@ -26,6 +26,6 @@
struct cache_tree *cache_tree_read(const char *buffer, unsigned long size);
int cache_tree_fully_valid(struct cache_tree *);
-int cache_tree_update(struct cache_tree *, struct cache_entry **, int, int);
+int cache_tree_update(struct cache_tree *, struct cache_entry **, int, int, int);
#endif
