log --graph: do not accept log --graphbogus

diff --git a/cache-tree.h b/cache-tree.h
index 8243228e49ffd7078a783582be6ce79c97541a9c..44aad426d319b83eda013e115f35e066cc590cb8 100644 (file)
--- a/cache-tree.h
+++ b/cache-tree.h
@@ -30,4 +30,9 @@ int cache_tree_update(struct cache_tree *, struct cache_entry **, int, int, int)
 
 struct cache_tree *cache_tree_find(struct cache_tree *, const char *);
 
+#define WRITE_TREE_UNREADABLE_INDEX (-1)
+#define WRITE_TREE_UNMERGED_INDEX (-2)
+#define WRITE_TREE_PREFIX_ERROR (-3)
+
+int write_cache_as_tree(unsigned char *sha1, int missing_ok, const char *prefix);
 #endif