Add version command. (#237)

src/cli/README.md

@@ -35,6 +35,7 @@ OpenThread test scripts use the CLI to execute test cases.
 * [start](#start)
 * [state](#state)
 * [stop](#stop)
+* [version](#version)
 * [whitelist](#whitelist)
 
 ## OpenThread Command Details
@@ -558,6 +559,16 @@ Disable OpenThread.
 Done
 ```
 
+### version
+
+Print the build version information.
+
+```bash
+> version
+OPENTHREAD/gf4f2f04; Jul  1 2016 17:00:09
+Done
+```
+
 ### whitelist
 
 List the whitelist entries.

src/cli/cli.cpp

@@ -36,6 +36,7 @@
 #include <string.h>
 
 #include <openthread.h>
+#include <openthread-config.h>
 
 #include "cli.hpp"
 #include <common/encoding.hpp>
@@ -79,6 +80,7 @@ const struct Command Interpreter::sCommands[] =
     { "start", &ProcessStart },
     { "state", &ProcessState },
     { "stop", &ProcessStop },
+    { "version", &ProcessVersion },
     { "whitelist", &ProcessWhitelist },
 };
 
@@ -1267,6 +1269,12 @@ exit:
     AppendResult(error);
 }
 
+void Interpreter::ProcessVersion(int argc, char *argv[])
+{
+    sServer->OutputFormat("%s\r\n", PACKAGE_NAME "/" PACKAGE_VERSION "; " __DATE__ " " __TIME__);
+    AppendResult(kThreadError_None);
+}
+
 void Interpreter::ProcessWhitelist(int argc, char *argv[])
 {
     ThreadError error = kThreadError_None;

src/cli/cli.hpp

@@ -123,6 +123,7 @@ private:
     static void ProcessStart(int argc, char *argv[]);
     static void ProcessState(int argc, char *argv[]);
     static void ProcessStop(int argc, char *argv[]);
+    static void ProcessVersion(int argc, char *argv[]);
     static void ProcessWhitelist(int argc, char *argv[]);
 
     static void HandleEchoResponse(void *aContext, Message &aMessage, const Ip6::MessageInfo &aMessageInfo);