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# ~~~
# Copyright (c) 2023 LunarG, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ~~~
option(UPDATE_DEPS "Run update_deps.py for user")
if (UPDATE_DEPS)
find_package(Python3 REQUIRED QUIET)
set(update_dep_py "${CMAKE_CURRENT_LIST_DIR}/update_deps.py")
set(known_good_json "${CMAKE_CURRENT_LIST_DIR}/known_good.json")
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${update_dep_py} ${known_good_json})
list(APPEND update_dep_command "${update_dep_py}")
list(APPEND update_dep_command "--generator")
list(APPEND update_dep_command "${CMAKE_GENERATOR}")
if (CMAKE_GENERATOR_PLATFORM)
list(APPEND update_dep_command "--arch")
list(APPEND update_dep_command "${CMAKE_GENERATOR_PLATFORM}")
endif()
if ("${CMAKE_OSX_ARCHITECTURES}" MATCHES ";")
list(APPEND update_dep_command "--osx-archs")
string(REPLACE ";" ":" osx_archs "${CMAKE_OSX_ARCHITECTURES}")
list(APPEND update_dep_command "${osx_archs}")
set(APPLE_UNIVERSAL_BINARY ON)
endif()
if (NOT CMAKE_BUILD_TYPE)
message(WARNING "CMAKE_BUILD_TYPE not set. Using Debug for dependency build type")
set(_build_type Debug)
else()
set(_build_type ${CMAKE_BUILD_TYPE})
endif()
list(APPEND update_dep_command "--config")
list(APPEND update_dep_command "${_build_type}")
list(APPEND update_dep_command "--api")
list(APPEND update_dep_command "${API_TYPE}")
set(UPDATE_DEPS_DIR_SUFFIX "${_build_type}")
if (CMAKE_CROSSCOMPILING)
if (APPLE_UNIVERSAL_BINARY)
set(UPDATE_DEPS_DIR_SUFFIX "${CMAKE_SYSTEM_NAME}/${UPDATE_DEPS_DIR_SUFFIX}/universal")
else()
set(UPDATE_DEPS_DIR_SUFFIX "${CMAKE_SYSTEM_NAME}/${UPDATE_DEPS_DIR_SUFFIX}/${CMAKE_SYSTEM_PROCESSOR}")
endif()
else()
if (APPLE_UNIVERSAL_BINARY)
set(UPDATE_DEPS_DIR_SUFFIX "${UPDATE_DEPS_DIR_SUFFIX}/universal")
else()
math(EXPR bitness "8 * ${CMAKE_SIZEOF_VOID_P}")
set(UPDATE_DEPS_DIR_SUFFIX "${UPDATE_DEPS_DIR_SUFFIX}/${bitness}")
endif()
endif()
set(UPDATE_DEPS_DIR "${PROJECT_SOURCE_DIR}/external/${UPDATE_DEPS_DIR_SUFFIX}" CACHE PATH "Location where update_deps.py installs packages")
list(APPEND update_dep_command "--dir" )
list(APPEND update_dep_command "${UPDATE_DEPS_DIR}")
if (NOT BUILD_TESTS)
list(APPEND update_dep_command "--optional=tests")
endif()
if (UPDATE_DEPS_SKIP_EXISTING_INSTALL)
list(APPEND update_dep_command "--skip-existing-install")
endif()
list(APPEND cmake_vars "CMAKE_TOOLCHAIN_FILE")
# Avoids manually setting CMAKE_SYSTEM_NAME unless it's needed:
# https://cmake.org/cmake/help/latest/variable/CMAKE_CROSSCOMPILING.html
if (NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "${CMAKE_HOST_SYSTEM_NAME}")
list(APPEND cmake_vars "CMAKE_SYSTEM_NAME")
endif()
if (APPLE)
list(APPEND cmake_vars "CMAKE_OSX_DEPLOYMENT_TARGET")
endif()
if (NOT MSVC_IDE)
list(APPEND cmake_vars "CMAKE_CXX_COMPILER" "CMAKE_C_COMPILER" "CMAKE_ASM_COMPILER")
endif()
if (ANDROID)
list(APPEND cmake_vars "ANDROID_PLATFORM" "CMAKE_ANDROID_ARCH_ABI" "CMAKE_ANDROID_STL_TYPE" "CMAKE_ANDROID_RTTI" "CMAKE_ANDROID_EXCEPTIONS" "ANDROID_USE_LEGACY_TOOLCHAIN_FILE")
endif()
set(cmake_var)
foreach(var IN LISTS cmake_vars)
if (DEFINED ${var})
list(APPEND update_dep_command "--cmake_var")
list(APPEND update_dep_command "${var}=${${var}}")
endif()
endforeach()
if (cmake_var)
list(APPEND update_dep_command "${cmake_var}")
endif()
file(TIMESTAMP ${update_dep_py} timestamp_1)
file(TIMESTAMP ${known_good_json} timestamp_2)
string("MD5" md5_hash "${timestamp_1}-${timestamp_2}-${update_dep_command}")
set(UPDATE_DEPS_HASH "0" CACHE STRING "Default value until we run update_deps.py")
mark_as_advanced(UPDATE_DEPS_HASH)
if ("${UPDATE_DEPS_HASH}" STREQUAL "0")
list(APPEND update_dep_command "--clean-build")
list(APPEND update_dep_command "--clean-install")
endif()
if ("${md5_hash}" STREQUAL $CACHE{UPDATE_DEPS_HASH})
message(DEBUG "update_deps.py: no work to do.")
else()
execute_process(
COMMAND ${Python3_EXECUTABLE} ${update_dep_command}
RESULT_VARIABLE _update_deps_result
)
if (NOT (${_update_deps_result} EQUAL 0))
message(FATAL_ERROR "Could not run update_deps.py which is necessary to download dependencies.")
endif()
set(UPDATE_DEPS_HASH ${md5_hash} CACHE STRING "Ensure we only run update_deps.py when we need to." FORCE)
include("${UPDATE_DEPS_DIR}/helper.cmake")
endif()
endif()
if (VULKAN_HEADERS_INSTALL_DIR)
list(APPEND CMAKE_PREFIX_PATH ${VULKAN_HEADERS_INSTALL_DIR})
set(CMAKE_REQUIRE_FIND_PACKAGE_VulkanHeaders TRUE PARENT_SCOPE)
endif()
set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} PARENT_SCOPE)
if (CMAKE_CROSSCOMPILING)
set(CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH} ${CMAKE_PREFIX_PATH} PARENT_SCOPE)
endif()
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