function(git_rev_parse VAR)
	execute_process(
		COMMAND git rev-parse --short HEAD
		WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
		RESULT_VARIABLE PARSE_RESULT
		OUTPUT_VARIABLE PARSE_OUTPUT
		OUTPUT_STRIP_TRAILING_WHITESPACE
	)
	if(NOT PARSE_RESULT)
		set(${VAR} ${PARSE_OUTPUT} PARENT_SCOPE)
	else()
		set(${VAR} "Unknown" PARENT_SCOPE)
	endif()
endfunction()