Include recent change events in local discover

Since 5.0 we accumulate changes for 10s, include accumulated changes when starting a sync.

changelog/unreleased/11347

@@ -0,0 +1,5 @@
+Enhancement: Include recent changes in scheduled syncs
+
+When starting a new sync we now also include the recent change events in the discovery.
+
+https://github.com/owncloud/client/pull/11347

src/gui/folder.cpp

@@ -956,6 +956,10 @@ void Folder::startSync()
 
     setDirtyNetworkLimits();
 
+    // get the latest touched files
+    // this will enque this folder again, it doesn't matter
+    slotWatchedPathsChanged(_folderWatcher->popChangeSet(), Folder::ChangeReason::Other);
+
     const std::chrono::milliseconds fullLocalDiscoveryInterval = ConfigFile().fullLocalDiscoveryInterval();
     const bool hasDoneFullLocalDiscovery = _timeSinceLastFullLocalDiscovery.isValid();
     // negative fullLocalDiscoveryInterval means we don't require periodic full runs

src/gui/folderwatcher.cpp

@@ -50,20 +50,7 @@ FolderWatcher::FolderWatcher(Folder *folder)
 {
     _timer.setInterval(notificationTimeoutC);
     connect(&_timer, &QTimer::timeout, this, [this] {
-        auto paths = std::move(_changeSet);
-        // ------- handle ignores:
-        auto it = paths.cbegin();
-        while (it != paths.cend()) {
-            // we cause a file change from time to time to check whether the folder watcher works as expected
-            if (!_testNotificationPath.isEmpty() && Utility::fileNamesEqual(*it, _testNotificationPath)) {
-                _testNotificationPath.clear();
-            }
-            if (pathIsIgnored(*it)) {
-                it = paths.erase(it);
-            } else {
-                ++it;
-            }
-        }
+        auto paths = popChangeSet();
         if (!paths.isEmpty()) {
             qCInfo(lcFolderWatcher) << "Detected changes in paths:" << paths;
             emit pathChanged(paths);
@@ -160,4 +147,23 @@ void FolderWatcher::changeDetected(const QSet<QString> &paths)
     }
 }
 
+QSet<QString> FolderWatcher::popChangeSet()
+{
+    auto paths = std::move(_changeSet);
+    // ------- handle ignores:
+    auto it = paths.cbegin();
+    while (it != paths.cend()) {
+        // we cause a file change from time to time to check whether the folder watcher works as expected
+        if (!_testNotificationPath.isEmpty() && Utility::fileNamesEqual(*it, _testNotificationPath)) {
+            _testNotificationPath.clear();
+        }
+        if (pathIsIgnored(*it)) {
+            it = paths.erase(it);
+        } else {
+            ++it;
+        }
+    }
+    return paths;
+}
+
 } // namespace OCC

src/gui/folderwatcher.h

@@ -80,6 +80,10 @@ class FolderWatcher : public QObject
     /// For testing linux behavior only
     int testLinuxWatchCount() const;
 
+    // pop the accumulated changes
+    QSet<QString> popChangeSet();
+
+
 signals:
     /** Emitted when one of the watched directories or one
      *  of the contained files is changed. */