From f334a736b9e9d23e02b1e36913a825d087753b8c Mon Sep 17 00:00:00 2001
From: "Martin T. H. Sandsmark" <martin.sandsmark@kde.org>
Date: Thu, 7 Jan 2021 16:48:43 +0100
Subject: [PATCH] Check the version of the plugins before trying to load them

---
 src/views/versioncontrol/versioncontrolobserver.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/views/versioncontrol/versioncontrolobserver.cpp b/src/views/versioncontrol/versioncontrolobserver.cpp
index 9f0933a487..175d362bc5 100644
--- a/src/views/versioncontrol/versioncontrolobserver.cpp
+++ b/src/views/versioncontrol/versioncontrolobserver.cpp
@@ -304,6 +304,13 @@ void VersionControlObserver::initPlugins()
                 continue;
             }
             if (enabledPlugins.contains((*it)->name())) {
+                KPluginLoader pluginLoader(*(*it));
+                // Need to cast to int, because pluginVersion() returns -1 as
+                // an unsigned int for plugins without versions.
+                if (int(pluginLoader.pluginVersion()) < 2) {
+                    qCWarning(DolphinDebug) << "Can't load old plugin" << (*it)->name();
+                    continue;
+                }
                 KVersionControlPlugin* plugin = (*it)->createInstance<KVersionControlPlugin>(this);
                 if (plugin) {
                     m_plugins.append(plugin);