revision: add rev_input_given flag
Normally a caller that invokes setup_revisions() has to
check rev.pending to see if anything was actually queued for
the traversal. But they can't tell the difference between
two cases:
1. The user gave us no tip from which to start a
traversal.
2. The user tried to give us tips via --glob, --all, etc,
but their patterns ended up being empty.
Let's set a flag in the rev_info struct that callers can use
to tell the difference. We can set this from the
init_all_refs_cb() function. That's a little funny because
it's not exactly about initializing the "cb" struct itself.
But that function is the common setup place for doing
pattern traversals that is used by --glob, --all, etc.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/revision.c b/revision.c
index 6603af9..08d5806 100644
--- a/revision.c
+++ b/revision.c
@@ -1168,6 +1168,7 @@ static void init_all_refs_cb(struct all_refs_cb *cb, struct rev_info *revs,
{
cb->all_revs = revs;
cb->all_flags = flags;
+ revs->rev_input_given = 1;
}
void clear_ref_exclusion(struct string_list **ref_excludes_p)
