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##
## Copyright (c) 2017, Alliance for Open Media. All rights reserved
##
## This source code is subject to the terms of the BSD 2 Clause License and
## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
## was not distributed with this source code in the LICENSE file, you can
## obtain it at www.aomedia.org/license/software. If the Alliance for Open
## Media Patent License 1.0 was not distributed with this source code in the
## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
##
cmake_minimum_required(VERSION 3.5)
set(REQUIRED_ARGS
"AOM_ROOT" "AOM_CONFIG_DIR" "GIT_EXECUTABLE" "PERL_EXECUTABLE")
foreach (arg ${REQUIRED_ARGS})
if ("${${arg}}" STREQUAL "")
message(FATAL_ERROR "${arg} must not be empty.")
endif ()
endforeach ()
include("${AOM_ROOT}/build/cmake/util.cmake")
# Generate the version string for this run.
unset(aom_version)
if (EXISTS "${GIT_EXECUTABLE}")
execute_process(COMMAND ${GIT_EXECUTABLE} --git-dir=${AOM_ROOT}/.git describe
OUTPUT_VARIABLE aom_version ERROR_QUIET)
string(STRIP "${aom_version}" aom_version)
# Remove the leading 'v' from the version string.
string(FIND "${aom_version}" "v" v_pos)
if (${v_pos} EQUAL 0)
string(SUBSTRING "${aom_version}" 1 -1 aom_version)
endif ()
endif ()
if ("${aom_version}" STREQUAL "")
set(aom_version "${AOM_ROOT}/CHANGELOG")
endif ()
unset(last_aom_version)
if (EXISTS "${AOM_CONFIG_DIR}/aom_version.h")
extract_version_string("${AOM_CONFIG_DIR}/aom_version.h" last_aom_version)
endif ()
if (NOT "${aom_version}" STREQUAL "${last_aom_version}")
# TODO(tomfinegan): Perl dependency is unnecessary. CMake can do everything
# that is done by version.pl on its own (if a bit more verbose...).
execute_process(
COMMAND ${PERL_EXECUTABLE} "${AOM_ROOT}/build/cmake/version.pl"
--version_data=${aom_version}
--version_filename=${AOM_CONFIG_DIR}/aom_version.h
VERBATIM)
endif ()
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