hex: add oid_to_hex_r()

This function works just like sha1_to_hex_r, except that it takes a
pointer to struct object_id instead of a pointer to unsigned char.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/hex.c b/hex.c
index 0519f85..9619b67 100644
--- a/hex.c
+++ b/hex.c
@@ -77,6 +77,11 @@ char *sha1_to_hex_r(char *buffer, const unsigned char *sha1)
 	return buffer;
 }
 
+char *oid_to_hex_r(char *buffer, const struct object_id *oid)
+{
+	return sha1_to_hex_r(buffer, oid->hash);
+}
+
 char *sha1_to_hex(const unsigned char *sha1)
 {
 	static int bufno;