2 CMake macros returning the current date (format yyyy-mm-dd) and the current time (hh:mm:ss)

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

# Return the date (yyyy-mm-dd)
macro(DATE RESULT)
	if(WIN32)
		execute_process(COMMAND "cmd" " /C date /T" OUTPUT_VARIABLE ${RESULT})
		string(REGEX REPLACE "(..)/(..)/(....).*" "\\3-\\2-\\1" ${RESULT} ${${RESULT}})
	elseif(UNIX)
		execute_process(COMMAND "date" "+%Y-%m-%d" OUTPUT_VARIABLE ${RESULT})
	else()
		message(SEND_ERROR "Unable to detect date")
		set(${RESULT} UNKNOWN)
	endif()
endmacro()

# Return the time (hh:mm:ss)
macro(TIME RESULT)
	if(WIN32)
		execute_process(COMMAND "cmd" " /C echo %TIME%" OUTPUT_VARIABLE ${RESULT})
		string(REGEX REPLACE "(..:..:..),(..)" "\\1" ${RESULT} ${${RESULT}})
	elseif(UNIX)
		execute_process(COMMAND "date" "+%H:%M:%S" OUTPUT_VARIABLE ${RESULT})
	else()
		message(SEND_ERROR "Unable to detect time")
		set(${RESULT} UNKNOWN)
	endif()
endmacro()