tree: avoid advancing over the filename multiple times

We've already looked at the filename with `memchr()` and then used
`strlen()` to allocate the entry. We already know how much we have to
advance to get to the object id, so add the filename length instead of
looking at each byte again.

1 files changed, 2 insertions, 4 deletions

diff --git a/src/tree.c b/src/tree.c
index bdd17661b..3504452c2 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -414,10 +414,8 @@ int git_tree__parse(void *_tree, git_odb_object *odb_obj)
 			entry->attr = attr;
 		}
 
-		while (buffer < buffer_end && *buffer != 0)
-			buffer++;
-
-		buffer++;
+		/* Advance to the ID just after the path */
+		buffer += entry->filename_len + 1;
 
 		git_oid_fromraw(&entry->oid, (const unsigned char *)buffer);
 		buffer += GIT_OID_RAWSZ;