# SPDX-License-Identifier: BSD-3-Clause

# Implements build counter and adds it as post-build action for sof

cmake_minimum_required(VERSION 3.10)

set(VERSION_BUILD_COUNTER_CMAKE_PATH ${CMAKE_CURRENT_LIST_DIR}/version-build-counter.cmake)

set(BUILD_COUNTER_PATH "${SOF_ROOT_BINARY_DIRECTORY}/.build")

if(NOT EXISTS "${BUILD_COUNTER_PATH}")

file(WRITE "${BUILD_COUNTER_PATH}" "1")

endif()

file(READ "${BUILD_COUNTER_PATH}" SOF_BUILD)

if(NOT SOF_BUILD MATCHES "^[0-9]+$")

message(WARNING "Invalid SOF_BUILD - setting to 1")

set(SOF_BUILD 1)

endif()

function(sof_add_build_counter_rule)

add_custom_command(

TARGET sof

POST_BUILD

COMMAND ${CMAKE_COMMAND}

-DSOF_ROOT_BINARY_DIRECTORY=${SOF_ROOT_BINARY_DIRECTORY}

-DBUILD_COUNTER_INCREMENT=ON

-P ${VERSION_BUILD_COUNTER_CMAKE_PATH}

COMMENT "Incrementing build number in ${BUILD_COUNTER_PATH}"

VERBATIM

USES_TERMINAL

)

endfunction()

if(BUILD_COUNTER_INCREMENT)

MATH(EXPR NEXT_SOF_BUILD "(${SOF_BUILD} + 1) % 65536")

file(WRITE "${BUILD_COUNTER_PATH}" ${NEXT_SOF_BUILD})

endif()