Support for creating log path and having no log file

Trace/Tracer.cs

@@ -63,6 +63,11 @@ namespace Common.Debug
         {
             _echoToConsole = echoToConsole;
 
+            if (!Directory.Exists(logPath))
+                Directory.CreateDirectory(logPath);
+
+            if (!string.IsNullOrEmpty(logPath))
+            {
                 // Use the file name template build the base file name
                 _mainFileName = string.Format(_fileNameTemplate, rootName, uniqueId);
 
@@ -87,6 +92,7 @@ namespace Common.Debug
 
                 // Setup the debug listener
                 Trace.Listeners.Add(_traceListener);
+            }
 
             _initialized = true;
 
@@ -103,6 +109,8 @@ namespace Common.Debug
             // Flush the trace
             Trace.Flush();
 
+            if (_traceListener != null)
+            {
                 // Remove the listener
                 Trace.Listeners.Remove(_traceListener);
 
@@ -110,6 +118,7 @@ namespace Common.Debug
                 _traceListener.Close();
                 _traceListener.Dispose();
                 _traceListener = null;
+            }
 
             // Close the trace
             Trace.Close();