qt: Use --quick-set-ownertrust if available

* lang/qt/src/qgpgmechangeownertrustjob.cpp (set_owner_trust): New.
(QGpgMEChangeOwnerTrustJob::start): Use set_owner_trust if gpg is new
enough.

* lang/qt/tests/t-ownertrust.cpp
(ChangeOwnerTrustTest::testChangeOwnerTrust): Log unexpected error.
--

Using the --quick-set-ownertrust command to set the owner trust is much
more robust than using the edit interface. Prefer the former if gpg
supports it.

GnuPG-bug-id: 7239

1 files changed, 3 insertions, 0 deletions

diff --git a/lang/qt/tests/t-ownertrust.cpp b/lang/qt/tests/t-ownertrust.cpp
index 653304e4..a032dfbd 100644
--- a/lang/qt/tests/t-ownertrust.cpp
+++ b/lang/qt/tests/t-ownertrust.cpp
@@ -89,6 +89,9 @@ private Q_SLOTS:
         ChangeOwnerTrustJob *job3 = openpgp()->changeOwnerTrustJob();
         connect(job3, &ChangeOwnerTrustJob::result, this, [this](Error e)
         {
+            if (e) {
+                qDebug() <<  "Error in result: " << e;
+            }
             QVERIFY(!e);
             Q_EMIT asyncDone();
         });