Make the "struct tree_desc" operations available to others

We have operations to "extract" and "update" a "struct tree_desc", but we
only used them in tree-diff.c and they were static to that file.

But other tree traversal functions can use them to their advantage

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/diff.h b/diff.h
index 9a0169c03c..32134d79b5 100644
--- a/diff.h
+++ b/diff.h
@@ -13,6 +13,9 @@ struct tree_desc {
 	unsigned long size;
 };
 
+extern void update_tree_entry(struct tree_desc *);
+extern const unsigned char *tree_entry_extract(struct tree_desc *, const char **, unsigned int *);
+
 struct diff_options;
 
 typedef void (*change_fn_t)(struct diff_options *options,