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revision: tolerate promised targets of tags

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In handle_commit(), it is fatal for an annotated tag to point to a
non-existent object. --exclude-promisor-objects should relax this rule
and allow non-existent objects that are promisor objects, but this is
not the case. Update handle_commit() to tolerate this situation.

This was observed when cloning from a repository with an annotated tag
pointing to a blob. The test included in this patch demonstrates this
case.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan
2018-07-12 17:03:06 -07:00
committed by Junio C Hamano
parent a7e67c11b8
commit dc0a13f681
2 changed files with 42 additions and 0 deletions
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revision.c
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@ -248,6 +248,9 @@ static struct commit *handle_commit(struct rev_info *revs,
if (!object) {
if (revs->ignore_missing_links || (flags & UNINTERESTING))
return NULL;
if (revs->exclude_promisor_objects &&
is_promisor_object(&tag->tagged->oid))
return NULL;
die("bad object %s", oid_to_hex(&tag->tagged->oid));
}
object->flags |= flags;