cmake_minimum_required (VERSION 3.6)

if (NOT WIN32)
	set (OS_RELEASE_FILE "/etc/os-release")
	file(STRINGS ${OS_RELEASE_FILE} OS_RELEASE)
else ()
	list(APPEND OS_RELEASE "ID=${CMAKE_SYSTEM_NAME}")
endif ()

foreach(_line IN LISTS OS_RELEASE)
        if (_line STREQUAL "")
           continue()
        endif()
	string(REPLACE "=" ";" _pair "${_line}")
	list(GET _pair 0 _name)
	list(GET _pair 1 _value)
	set(OS_RELEASE_${_name} ${_value})
endforeach()

if (${OS_RELEASE_ID} MATCHES "altlinux")
	string(REGEX REPLACE "[\"\.]" "" alt_branch_id ${OS_RELEASE_ALT_BRANCH_ID})
	set (OS_RELEASE_VERSION_CODENAME "${alt_branch_id}")
elseif (${OS_RELEASE_ID} MATCHES "astra")
	#string(REGEX REPLACE "_x86-64$" "" _version ${OS_RELEASE_VERSION_CODENAME})
	file(STRINGS "/etc/astra_version" _version)
	string(REGEX REPLACE "\\.|\t|\n|\r" "" _version ${_version})
	set (OS_RELEASE_VERSION_CODENAME "${OS_RELEASE_VERSION_CODENAME}")
	if (${OS_RELEASE_VERSION_CODENAME} MATCHES "4.7_arm")
		set (OS_RELEASE_VERSION_CODENAME "astra47")
	elseif (NOT ${OS_RELEASE_VERSION_CODENAME} MATCHES "orel")
		set (OS_RELEASE_VERSION_CODENAME "${OS_RELEASE_ID}${_version}")
	else ()
		set (OS_RELEASE_VERSION_CODENAME "${OS_RELEASE_VERSION_CODENAME}")
	endif()
elseif (${OS_RELEASE_ID} MATCHES "debian")
	set (OS_RELEASE_VERSION_CODENAME "${OS_RELEASE_VERSION_CODENAME}")
elseif (${OS_RELEASE_ID} MATCHES "centos")
	string(REGEX REPLACE "[\"\.]" "" version_id ${OS_RELEASE_VERSION_ID})
	set (OS_RELEASE_VERSION_CODENAME "el${version_id}")
elseif (${OS_RELEASE_ID} MATCHES "fedora")
	set (OS_RELEASE_VERSION_CODENAME "f${OS_RELEASE_VERSION_ID}")
elseif (${OS_RELEASE_ID} MATCHES "freebsd")
	set (OS_RELEASE_VERSION_CODENAME "${OS_RELEASE_NAME}")
elseif (${OS_RELEASE_ID} MATCHES "msys2")
	set (OS_RELEASE_VERSION_CODENAME "${OS_RELEASE_ID}")
elseif (${OS_RELEASE_ID} MATCHES "ubuntu")
	set (OS_RELEASE_VERSION_CODENAME "${OS_RELEASE_UBUNTU_CODENAME}")
elseif (${OS_RELEASE_ID} MATCHES "sberlinux")
        string(REGEX REPLACE "[\"\.]" "" version_id ${OS_RELEASE_VERSION_ID})
	set (OS_RELEASE_VERSION_CODENAME "sl${version_id}")
elseif (${OS_RELEASE_ID} MATCHES "Windows")
	set (OS_RELEASE_VERSION_CODENAME "win")
else ()
	set (OS_RELEASE_VERSION_CODENAME "")
endif()

MESSAGE(STATUS "OS_RELEASE_ID: ${OS_RELEASE_ID}")
MESSAGE(STATUS "OS_RELEASE_VERSION_CODENAME: ${OS_RELEASE_VERSION_CODENAME}")
MESSAGE(STATUS "")