Add version info definition

Signed-off-by: YoungSoo Shin <shinys000114@gmail.com>

main/CMakeLists.txt

@@ -68,4 +68,13 @@ add_custom_target(protobuf_generate ALL
 )
 
 add_dependencies(${COMPONENT_LIB} build_web_app)
-add_dependencies(${COMPONENT_LIB} protobuf_generate)
+add_dependencies(${COMPONENT_LIB} protobuf_generate)
+
+execute_process(
+        COMMAND git rev-parse --short HEAD
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        OUTPUT_VARIABLE GIT_HASH
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+
+add_compile_definitions(VERSION_HASH="${GIT_HASH}")