Command line tool prints WSJT-X version to console, tnx Dave, W3DJS

AppVersion/AppVersion.cpp

@@ -0,0 +1,43 @@
+//
+// wsjtx_app_version - a console application that outputs WSJT-X
+//                     application version
+//
+// This application is only provided as a simple console application
+//
+//
+
+#include <cstdlib>
+#include <iostream>
+#include <exception>
+
+#include <QCoreApplication>
+#include <QCommandLineParser>
+#include <QCommandLineOption>
+
+#include "revision_utils.hpp"
+
+int main (int argc, char * argv[])
+{
+  QCoreApplication app {argc, argv};
+  try
+    {
+      app.setApplicationName ("WSJT-X");
+      app.setApplicationVersion (version());
+
+      QCommandLineParser parser;
+//      parser.setApplicationDescription ("\n" PROJECT_DESCRIPTION);
+      parser.addHelpOption ();
+      parser.addVersionOption ();
+      parser.process (app);
+      return EXIT_SUCCESS;
+    }
+  catch (std::exception const& e)
+    {
+      std::cerr << "Error: " << e.what () << '\n';
+    }
+  catch (...)
+    {
+      std::cerr << "Unexpected error\n";
+    }
+  return -1;
+}