Index: sources/storage/filehandler.cpp
===================================================================
diff -u -rc71deaab48699cffdf9db816dfac2778d79c2238 -rd1907168ef46faa6de1ada400cad789f8379041f
--- sources/storage/filehandler.cpp	(.../filehandler.cpp)	(revision c71deaab48699cffdf9db816dfac2778d79c2238)
+++ sources/storage/filehandler.cpp	(.../filehandler.cpp)	(revision d1907168ef46faa6de1ada400cad789f8379041f)
@@ -1,29 +1,29 @@
 /*!
- * 
+ *
  * Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
  * \copyright
  * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
  * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
- * 
+ *
  * \file filehandler.cpp
  * \author (last) Behrouz NematiPour
  * \date (last) 22-Apr-2020
  * \author (original) Behrouz NematiPour
  * \date (original) 24-Sep-2019
- * 
+ *
  */
 #include "filehandler.h"
 
 //Qt
-#include <QFileInfo>
+#include <QFile>
+#include <QTextStream>
 #include <QProcess>
-#include <iostream>
+#include <QDate>
+#include <QDir>
+#include <QDebug>
 
-
 // Project
-#include "storageglobals.h"
 #include "logger.h"
-#include "threads.h"
 
 // namespace
 using namespace Storage;
@@ -55,13 +55,17 @@
 bool FileHandler::write(const QString &vFileName, const QString &vContent, bool vAppend)
 {
     QFile file(vFileName);
-    QIODevice::OpenMode openMode = vAppend ?
-                QFile::Text | QFile::Append :
-                QFile::Text | QFile::WriteOnly;
+    QFile::OpenMode openMode = vAppend            ?
+                    QFile::Text | QFile::Append   :
+                    QFile::Text | QFile::WriteOnly;
+    // coco begin validated : This has been manually test. Needs filesystem access to make file the way it can't be opened for writing.
     if (! file.open(openMode)) {
-        errOut(QObject::tr("Can't open file for write (%1).Possible corrupted file system").arg(vFileName));
+        QString   msg = QString("Can't open file for write (%1).Possible corrupted file system").arg(vFileName);
+        errOut   (msg);
+        LOG_DEBUG(msg);
         return false;
     }
+    // coco end
     QTextStream out(&file);
     out << vContent;
     out.flush();
@@ -80,7 +84,9 @@
 {
     QFile file(vFileName);
     if (! file.open(QFile::Text | QFile::ReadOnly)) {
-        errOut(QObject::tr("Can't open file for read (%1).Possible corrupted file system").arg(vFileName));
+        QString   msg = QString("Can't open file for read (%1).Possible corrupted file system").arg(vFileName);
+        errOut   (msg);
+        LOG_DEBUG(msg);
         return false;
     }
     QTextStream in(&file);
@@ -148,11 +154,66 @@
     QStringList arguments;
     arguments << "-r" << vSource << vDestination;
     int result = QProcess::execute(cp, arguments);
-
-    cp = "sync;sync;sync;";
-    arguments.clear();
-    QProcess::execute(cp, arguments);
-
     return result;
 }
 // coco end
+
+/*!
+ * \brief   FileHandler::removeFiles
+ * \details
+ * \param   vFolder
+ * \param   vFilter
+ * \param   vDateOlderThan
+ * \return
+ */
+int FileHandler::removeFiles(const QStringList &vFolders, const QStringList &vNameFilter, const QDate &vDateOlderThan)
+{
+    int countRemoved = 0;
+    for (const auto &folder : vFolders) {
+        QDir dir(folder);
+        dir.setFilter(QDir::Files | QDir::Hidden | QDir::NoSymLinks);
+        dir.setSorting(QDir::Time | QDir::Reversed);
+        QFileInfoList infoList = dir.entryInfoList(vNameFilter);
+        for (const auto &info : infoList) {
+            QDateTime fileTime = info.lastModified();
+            QString   fileName = info.absoluteFilePath();
+            // coco begin validated : This has been manually tested since requires to change in file system to reproduce the error.
+            if (fileTime.isValid()) {
+                if (fileTime.date() <= vDateOlderThan) {
+                    if (QFile::remove(fileName)) {
+                        ++countRemoved;
+                        LOG_DEBUG(QString("%1 File(s) %2 removed").arg(countRemoved).arg(fileName));
+                    }
+                    else {
+                        LOG_DEBUG(QString("Can't delete file : ") + fileName);
+                    }
+                }
+            }
+            else {
+                LOG_DEBUG(QString("Can't get last modified date of file : ") + fileName);
+            }
+            // coco end
+        }
+    }
+    return countRemoved;
+}
+
+/*!
+ * \brief   FileHandler::makeFolder
+ * \details Create the folder vFolder if it doesn't exist.
+ * \param   vFolder - the folder to create
+ * \return  true on successfull creation
+ */
+bool FileHandler::makeFolder(const QString &vFolder)
+{
+    QDir dir(vFolder);
+    if ( ! dir.exists(vFolder) ) {
+        if ( ! dir.mkpath(vFolder) ) {
+            QString msg = "Can't create folder " + vFolder;
+            qDebug() << msg;
+            LOG_DEBUG(msg);
+            return false;
+        }
+    }
+    return true;
+}