automaticlly generate build version infor

Former-commit-id: 7ed02faa146b614ee06327b95a8dba4154a904f9

cpp/CMakeLists.txt

@@ -23,7 +23,8 @@ 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 ${MEGASEARCH_VERSION})
+string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]" MEGASEARCH_VERSION "${MEGASEARCH_VERSION}")
+message(STATUS "Build version = ${MEGASEARCH_VERSION}")
 
 if(CMAKE_BUILD_TYPE STREQUAL "Release")
     set(BUILD_TYPE "release")
@@ -34,9 +35,7 @@ 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 "${MEGASEARCH_VERSION}")
-
-project(megasearch VERSION "${MEGASEARCH_BASE_VERSION}")
+project(megasearch VERSION "${MEGASEARCH_VERSION}")
 project(vecwise_engine LANGUAGES CUDA CXX)
 
 set(MEGASEARCH_VERSION_MAJOR "${megasearch_VERSION_MAJOR}")