CMake lifecyle phases

Hi guys,

I am new to CMake and tried to build my sample "hello world" app from src to final executable.
I found POST_BUILD step very useful to make executable bin from build output directly from CMake instead of using VS or etc.
But I didn't find the way to do it because no one command was triggered on POST_BUILD phase.

There is the CMakeLists.txt example:

cmake_minimum_required (VERSION 2.8)
project (sample)

set(SRC_FILES src/main.cc)

add_executable(${CMAKE_PROJECT_NAME} ${SRC_FILES})

add_custom_command(TARGET ${CMAKE_PROJECT_NAME} 
                   PRE_BUILD 
                   COMMAND echo "This is pre build" 
                  ) 
add_custom_command(TARGET ${CMAKE_PROJECT_NAME} 
                   POST_BUILD 
                   COMMAND echo "This is post build" 
                  ) 

OS: Windows 10 x64
Compiler: MSVC 19.10.25019.0 Cmake: 3.9 v

Thanks.