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# ***************************************************************************
# * *
# * Copyright : (C) 2014 Peter Kümmel *
# * email : syntheticpp@gmx.net *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU General Public License as published by *
# * the Free Software Foundation; either version 2 of the License, or *
# * (at your option) any later version. *
# * *
# ***************************************************************************
find_program(KST_GIT git)
if(KST_GIT)
execute_process(COMMAND ${KST_GIT} rev-parse -q --short HEAD
WORKING_DIRECTORY "${kst_dir}"
OUTPUT_VARIABLE _revision
ERROR_VARIABLE _error
RESULT_VARIABLE _result
OUTPUT_STRIP_TRAILING_WHITESPACE)
# write a file with the KST_REVISION define
file(WRITE ${header_file}.tmp "#define KST_REVISION \"${_revision}\"\n")
else()
file(WRITE ${header_file}.tmp "#define KST_REVISION \"unknown\"\n")
endif()
message(STATUS "Revision: ${_revision}")
# copy the file to the final header only if the version changes reduces needless rebuilds
execute_process(COMMAND ${CMAKE_COMMAND}
-E copy_if_different
${header_file}.tmp ${header_file})
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