3_2_x mapping: [search engine] Remove python3 cache during updateNova()

src/core/fs_utils.cpp

@@ -187,6 +187,27 @@ bool fsutils::forceRemove(const QString& file_path) {
   return f.remove();
 }
 
+/**
+* Removes directory and its content recursively.
+*
+*/
+void fsutils::removeDirRecursive(const QString& dirName) {
+    QDir dir(dirName);
+
+    if (!dir.exists()) return;
+
+    Q_FOREACH(QFileInfo info, dir.entryInfoList(QDir::NoDotAndDotDot |
+                                                QDir::System |
+                                                QDir::Hidden |
+                                                QDir::AllDirs |
+                                                QDir::Files, QDir::DirsFirst)) {
+        if (info.isDir()) removeDirRecursive(info.absoluteFilePath());
+        else forceRemove(info.absoluteFilePath());
+    }
+
+    dir.rmdir(dirName);
+}
+
 /**
  * Returns the size of a file.
  * If the file is a folder, it will compute its size based on its content.