rev-list --count: comment on the use of count_right++
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/rev-list.c b/builtin/rev-list.c
index 35e14ad..f520111 100644
--- a/builtin/rev-list.c
+++ b/builtin/rev-list.c
@@ -262,6 +262,13 @@
return;
if (revs->count) {
+ /*
+ * The object count is always accumulated in the .count_right
+ * field for traversal that is not a left-right traversal,
+ * and cmd_rev_list() made sure that a .count request that
+ * wants to count non-commit objects, which is handled by
+ * the show_object() callback, does not ask for .left_right.
+ */
revs->count_right++;
return;
}
