[sitl] add --version, add git commit to version output (iNavFlight#9286)

* [sitl] add --version, add git commit to version output

* [sitl] take help path on invalid options

src/main/target/SITL/target.c

@@ -51,6 +51,7 @@
 #include "drivers/timer.h"
 #include "drivers/serial.h"
 #include "config/config_streamer.h"
+#include "build/version.h"
 
 #include "target/SITL/sim/realFlight.h"
 #include "target/SITL/sim/xplane.h"
@@ -73,9 +74,12 @@ static int simPort = 0;
 
 static char **c_argv;
 
-void systemInit(void) {
+static void printVersion(void) {
+    fprintf(stderr, "INAV %d.%d.%d SITL (%s)\n", FC_VERSION_MAJOR, FC_VERSION_MINOR, FC_VERSION_PATCH_LEVEL, shortGitRevision);
+}
 
-    fprintf(stderr, "INAV %d.%d.%d SITL\n", FC_VERSION_MAJOR, FC_VERSION_MINOR, FC_VERSION_PATCH_LEVEL);
+void systemInit(void) {
+    printVersion();
     clock_gettime(CLOCK_MONOTONIC, &start_time);
     fprintf(stderr, "[SYSTEM] Init...\n");
 
@@ -168,6 +172,7 @@ bool parseMapping(char* mapStr)
 
 void printCmdLineOptions(void)
 {
+    printVersion();
     fprintf(stderr, "Avaiable options:\n");
     fprintf(stderr, "--path=[path]                        Path and filename of eeprom.bin. If not specified 'eeprom.bin' in program directory is used.\n");
     fprintf(stderr, "--sim=[rf|xp]                        Simulator interface: rf = RealFligt, xp = XPlane. Example: --sim=rf\n");
@@ -197,6 +202,7 @@ void parseArguments(int argc, char *argv[])
             {"simport", required_argument, 0, 'p'},
             {"help", no_argument, 0, 'h'},
             {"path", required_argument, 0, 'e'},
+	    {"version", no_argument, 0, 'v'},
             {NULL, 0, NULL, 0}
         };
 
@@ -236,10 +242,12 @@ void parseArguments(int argc, char *argv[])
                     fprintf(stderr, "[EEPROM] Invalid path, using eeprom file in program directory\n.");
                 }
                 break;
-            case 'h':
+	    case 'v':
+		printVersion();
+		exit(0);
+	    default:
                 printCmdLineOptions();
                 exit(0);
-                break;
         }
     }