zephyr/cmake/git.cmake
Marc Herbert f085647521 cmake: more deterministic git describe --abbrev=12
Hardcode --abbrev=12 not to depend on personal git config preference.
12 is deemed large enough for the Linux kernel which should leave some
room:
https://public-inbox.org/git/xmqq37knwcf4.fsf@gitster.mtv.corp.google.com/

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
2019-02-27 10:27:47 +01:00

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CMake

# Use git if it is installed, to set BUILD_VERSION
# https://cmake.org/cmake/help/latest/module/FindGit.html
find_package(Git QUIET)
if(GIT_FOUND)
execute_process(
COMMAND ${GIT_EXECUTABLE} describe --abbrev=12
WORKING_DIRECTORY ${ZEPHYR_BASE}
OUTPUT_VARIABLE BUILD_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_STRIP_TRAILING_WHITESPACE
ERROR_VARIABLE stderr
RESULT_VARIABLE return_code
)
if(return_code)
message(STATUS "git describe failed: ${stderr}; ${KERNEL_VERSION_STRING} will be used instead")
elseif(CMAKE_VERBOSE_MAKEFILE)
message(STATUS "git describe stderr: ${stderr}")
endif()
endif()