server/AyaNova/util/FileUtil.cs

@@ -119,6 +119,27 @@ namespace AyaNova.Util
         }
 
 
+        /// <summary>
+        /// Get date of newest backup file or minvalue if not found
+        /// 
+        /// </summary>      
+        /// <returns></returns>
+        internal static DateTime MostRecentBackupFileDate()
+        {
+            DateTime LastBackup = DateTime.MinValue;
+            var BackupPath = UtilityFilesFolder;
+            foreach (string file in Directory.EnumerateFiles(UtilityFilesFolder, "*.backup"))
+            {
+                var ThisFileTime = File.GetCreationTimeUtc(Path.Combine(BackupPath, file));
+                if (ThisFileTime > LastBackup)
+                {
+                    LastBackup = ThisFileTime;
+                }
+            }
+            return LastBackup;
+        }
+
+
         /// <summary>
         /// Confirm if a file exists in the utility folder
         /// </summary>