tree-diff: convert diff_root_tree_sha1() to just call diff_tree_sha1 with old=NULL

Now since diff_tree_sha1 understands NULL for both old and new, we could
indicate an empty tree for root commit by providing just NULL for old
sha1.

Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Kirill Smelkov 2014-02-05 20:57:10 +04:00 committed by Junio C Hamano
parent 791303284c
commit 0b707c3319

View File

@ -311,18 +311,5 @@ int diff_tree_sha1(const unsigned char *old, const unsigned char *new, const cha
int diff_root_tree_sha1(const unsigned char *new, const char *base, struct diff_options *opt)
{
int retval;
void *tree;
unsigned long size;
struct tree_desc empty, real;
tree = read_object_with_reference(new, tree_type, &size, NULL);
if (!tree)
die("unable to read root tree (%s)", sha1_to_hex(new));
init_tree_desc(&real, tree, size);
init_tree_desc(&empty, "", 0);
retval = diff_tree(&empty, &real, base, opt);
free(tree);
return retval;
return diff_tree_sha1(NULL, new, base, opt);
}