+sub do_finish ($$) {
+ my ($self, $user_cb) = @_;
+ my $found = $self->{found};
+ my $oid_want = $self->{oid_want};
+ if (my $exists = $found->{$oid_want}) {
+ return $user_cb->($exists);
+ }
+
+ # let git disambiguate if oid_want was too short,
+ # but long enough to be unambiguous:
+ my $tmp_git = $self->{tmp_git};
+ if (my @res = $tmp_git->check($oid_want)) {
+ return $user_cb->($found->{$res[0]});
+ }
+ if (my $err = $tmp_git->last_check_err) {
+ dbg($self, $err);
+ }
+ $user_cb->(undef);
+}
+