Help option now also displays default configuration values

src/dcdbpusher.cpp

@@ -146,27 +146,31 @@ void printSyntax()
                        1         2         3         4         5         6         7         8
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 */
+	_configuration = new Configuration("");
+	global_t& globalSettings = _configuration->getGlobal();
 	cout << "Usage:" << endl;
 	cout << "  dcdbpusher [-d] [-x] [-a<string>] [-b<host>] [-p<port>] [-m<string>] [-t<number>] <path/to/configfiles/>" << endl;
 	cout << "  dcdbpusher -h" << endl;
 	cout << endl;
 
 	cout << "Options:" << endl;
-	cout << "  -a <string>     Enable sensor name auto-publish using the specified string as pattern" << endl;
-	cout << "  -b <host>       MQTT broker" << endl;
-	cout << "  -p <port>       MQTT broker port" << endl;
-	cout << "  -m <string>     MQTT topic prefix" << endl;
-	cout << "  -t <number>     Thread count" << endl;
-	cout << "  -w <path>       Writable directory for temporal files" << endl;
-	cout << "  -c <sec>        Caching interval of the sensors in [s]" << endl;
-	cout << "  -v <level>      Set verbosity of output." << endl
-		 <<	"                  Can be a number between 5 (all output) and 0 (only fatal messages)." << endl
-		 <<	"                  Default level is 3 (info)" << endl;
+	cout << "  -a <string>     Auto-publish pattern         [default: none]" << endl;
+	cout << "  -b <host>       MQTT broker                  [default: none]" << endl;
+	cout << "  -p <port>       MQTT broker port             [default: " << globalSettings.brokerPort << "]" << endl;
+	cout << "  -m <string>     MQTT topic prefix            [default: none]" << endl;
+	cout << "  -t <number>     Thread count                 [default: " << globalSettings.threads << "]" << endl;
+	cout << "  -w <path>       Writable temp dir            [default: .]" << endl;
+	cout << "  -c <sec>        Cache interval in [s]        [default: " << globalSettings.pluginSettings.cacheInterval / 1000 << "]" << endl;
+	cout << "  -v <level>      Set verbosity of output      [default: " << globalSettings.logLevelCmd << "]" << endl
+		 <<	"                  Can be a number between 5 (all) and 0 (fatal)." << endl;
 	cout << endl;
 	cout << "  -d              Daemonize" << endl;
 	cout << "  -x              Parse and print the config but do not actually start dcdbpusher" << endl;
 	cout << "  -h              This help page" << endl;
 	cout << endl;
+
+	delete _configuration;
+	_configuration = nullptr;
 }
 
 int main(int argc, char** argv) {