merge: convert empty tree constant to the_hash_algo
authorbrian m. carlson <sandals@crustytoothpaste.net>
Wed, 2 May 2018 00:25:57 +0000 (00:25 +0000)
committerJunio C Hamano <gitster@pobox.com>
Wed, 2 May 2018 04:59:52 +0000 (13:59 +0900)
To avoid dependency on a particular hash algorithm, convert a use of
EMPTY_TREE_SHA1_HEX to use the_hash_algo->empty_tree instead.  Since
both branches now use oid_to_hex, condense the if statement into a
ternary.

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

diff --git a/merge.c b/merge.c
index f06a477..5186cb6 100644 (file)
--- a/merge.c
+++ b/merge.c
 
 static const char *merge_argument(struct commit *commit)
 {
-       if (commit)
-               return oid_to_hex(&commit->object.oid);
-       else
-               return EMPTY_TREE_SHA1_HEX;
+       return oid_to_hex(commit ? &commit->object.oid : the_hash_algo->empty_tree);
 }
 
 int index_has_changes(struct strbuf *sb)