automaticlly generate build version infor

Former-commit-id: 4c8fccc57722bd527e1947590014e07ca110a108

cpp/.gitignore

@@ -4,3 +4,4 @@ third_party/bzip2-1.0.6/
 third_party/sqlite3/
 megasearch/
 conf/server_config.yaml
+version.h

cpp/CMakeLists.txt

@@ -7,7 +7,32 @@
 cmake_minimum_required(VERSION 3.14)
 message(STATUS "Building using CMake version: ${CMAKE_VERSION}")
 
-set(MEGASEARCH_VERSION "0.1.0")
+MACRO (GET_CURRENT_TIME CURRENT_TIME)
+    execute_process(COMMAND "date" +"%Y-%m-%d %H:%M.%S" OUTPUT_VARIABLE ${CURRENT_TIME})
+ENDMACRO (GET_CURRENT_TIME)
+
+GET_CURRENT_TIME(BUILD_TIME)
+string(REGEX REPLACE "\n" "" BUILD_TIME ${BUILD_TIME})
+message(STATUS "Build time = ${BUILD_TIME}")
+
+MACRO (GET_GIT_BRANCH_NAME GIT_BRANCH_NAME)
+    execute_process(COMMAND "git" symbolic-ref --short HEAD OUTPUT_VARIABLE ${GIT_BRANCH_NAME})
+ENDMACRO (GET_GIT_BRANCH_NAME)
+
+GET_GIT_BRANCH_NAME(GIT_BRANCH_NAME)
+string(REGEX REPLACE "\n" "" GIT_BRANCH_NAME ${GIT_BRANCH_NAME})
+
+set(MEGASEARCH_VERSION "${GIT_BRANCH_NAME}")
+string(REGEX REPLACE "branch-" "" MEGASEARCH_VERSION ${MEGASEARCH_VERSION})
+
+if(CMAKE_BUILD_TYPE STREQUAL "Release")
+    set(BUILD_TYPE "release")
+else()
+    set(BUILD_TYPE "debug")
+endif()
+message(STATUS "Build type = ${BUILD_TYPE}")
+
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/version.h.cf ${CMAKE_CURRENT_SOURCE_DIR}/version.h)
 
 string(REGEX MATCH "^[0-9]+\\.[0-9]+\\.[0-9]+" MEGASEARCH_BASE_VERSION "${MEGASEARCH_VERSION}")
 

cpp/src/main.cpp

@@ -4,6 +4,7 @@
 // Proprietary and confidential.
 ////////////////////////////////////////////////////////////////////////////////
 #include "server/Server.h"
+#include "version.h"
 
 #include <getopt.h>
 #include <libgen.h>
@@ -25,8 +26,8 @@ using namespace zilliz::vecwise;
 
 int
 main(int argc, char *argv[]) {
-    printf("Vecwise engine server start...\n");
-//    zilliz::lib::gpu::InitMemoryAllocator();
+    printf("Megasearch %s version: v%s built at %s\n", BUILD_TYPE, MEGASEARCH_VERSION, BUILD_TIME);
+    printf("Megasearch server start...\n");
 
     signal(SIGINT, server::SignalUtil::HandleSignal);
     signal(SIGSEGV, server::SignalUtil::HandleSignal);

cpp/version.h.cf

+#pragma once
+
+#define MEGASEARCH_VERSION "@MEGASEARCH_VERSION@"
+#define BUILD_TYPE "@BUILD_TYPE@"
+#define BUILD_TIME @BUILD_TIME@
\ No newline at end of file