fix many errors when querying/setting pin state of virtual files

Signed-off-by: Matthieu Gallien <matthieu.gallien@nextcloud.com>

src/libsync/discovery.cpp

@@ -1871,7 +1871,7 @@ bool ProcessDirectoryJob::isVfsWithSuffix() const
 void ProcessDirectoryJob::computePinState(PinState parentState)
 {
     _pinState = parentState;
-    if (_queryLocal != ParentDontExist) {
+    if (_queryLocal != ParentDontExist && QFileInfo::exists(_discoveryData->_localDir + _currentFolder._local)) {
         if (auto state = _discoveryData->_syncOptions._vfs->pinState(_currentFolder._local)) // ouch! pin local or original?
             _pinState = *state;
     }

src/libsync/propagateremotemove.cpp

@@ -251,7 +251,7 @@ void PropagateRemoteMove::finalize()
         return;
     }
     auto &vfs = propagator()->syncOptions()._vfs;
-    auto pinState = vfs->pinState(_item->_originalFile);
+    auto pinState = vfs->pinState(_item->_renameTarget);
 
     const auto targetFile = propagator()->fullLocalPath(_item->_renameTarget);
 

src/libsync/propagatorjobs.cpp

@@ -222,11 +222,19 @@ void PropagateLocalRename::start()
     if (propagator()->_abortRequested)
         return;
 
+    auto &vfs = propagator()->syncOptions()._vfs;
     const auto previousNameInDb = propagator()->adjustRenamedPath(_item->_file);
     const auto existingFile = propagator()->fullLocalPath(propagator()->adjustRenamedPath(_item->_file));
     const auto targetFile = propagator()->fullLocalPath(_item->_renameTarget);
 
     const auto fileAlreadyMoved = !QFileInfo::exists(propagator()->fullLocalPath(_item->_originalFile));
+    auto pinState = OCC::PinState::Unspecified;
+    if (!fileAlreadyMoved) {
+        auto pinStateResult = vfs->pinState(propagator()->adjustRenamedPath(_item->_file));
+        if (pinStateResult) {
+            pinState = pinStateResult.get();
+        }
+    }
 
     // if the file is a file underneath a moved dir, the _item->file is equal
     // to _item->renameTarget and the file is not moved as a result.
@@ -269,10 +277,10 @@ void PropagateLocalRename::start()
         return;
     }
 
-    auto &vfs = propagator()->syncOptions()._vfs;
-    auto pinState = vfs->pinState(_item->_renameTarget);
-    if (!vfs->setPinState(_item->_renameTarget, PinState::Inherited)) {
-        qCWarning(lcPropagateLocalRename) << "Could not set pin state of" << _item->_renameTarget << "to inherited";
+    if (pinState != OCC::PinState::Unspecified && !vfs->setPinState(_item->_renameTarget, pinState)) {
+        qCWarning(lcPropagateLocalRename) << "Could not set pin state of" << _item->_renameTarget << "to old value" << pinState;
+        done(SyncFileItem::NormalError, tr("Error setting pin state"));
+        return;
     }
 
     const auto oldFile = _item->_file;
@@ -331,11 +339,6 @@ void PropagateLocalRename::start()
             return;
         }
     }
-    if (pinState && *pinState != PinState::Inherited
-        && !vfs->setPinState(_item->_renameTarget, *pinState)) {
-        done(SyncFileItem::NormalError, tr("Error setting pin state"));
-        return;
-    }
 
     propagator()->_journal->commit("localRename");