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125 lines
5.5 KiB
CMake
125 lines
5.5 KiB
CMake
#
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# All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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# its licensors.
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#
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# For complete copyright and license terms please see the LICENSE at the root of this
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# distribution (the "License"). All use of this software is governed by the License,
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# or, if provided, by the license below or the license accompanying this file. Do not
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# remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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#
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# Cmake version 3.17 is the minimum version needed for all of Open 3D Engine's supported platforms
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cmake_minimum_required(VERSION 3.19)
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# CMP0111 introduced in 3.19 has a bug that produces the policy to warn every time there is an
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# INTERFACE IMPORTED library. We use this type of libraries for handling 3rdParty. The rest of
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# the documentation states that INTERFACE IMPORTED libraries do not require to set locations, but
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# the policy still warns about it. Issue: https://gitlab.kitware.com/cmake/cmake/-/issues/21470
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# The issue was fixed in 3.19.1 so we just disable the policy for 3.19
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if(CMAKE_VERSION VERSION_EQUAL 3.19)
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cmake_policy(SET CMP0111 OLD)
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endif()
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include(cmake/Version.cmake)
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include(cmake/OutputDirectory.cmake)
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if(NOT PROJECT_NAME)
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project(O3DE
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LANGUAGES C CXX
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VERSION ${LY_VERSION_STRING}
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)
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endif()
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include(cmake/GeneralSettings.cmake)
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include(cmake/FileUtil.cmake)
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include(cmake/PAL.cmake)
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include(cmake/PALTools.cmake)
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include(cmake/Install.cmake)
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include(cmake/Configurations.cmake) # Requires to be after PAL so we get platform variable definitions
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include(cmake/Dependencies.cmake)
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include(cmake/Deployment.cmake)
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include(cmake/3rdParty.cmake)
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include(cmake/LYPython.cmake)
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include(cmake/LYWrappers.cmake)
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include(cmake/UnitTest.cmake)
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include(cmake/LYTestWrappers.cmake)
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include(cmake/Monolithic.cmake)
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include(cmake/SettingsRegistry.cmake)
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include(cmake/TestImpactFramework/LYTestImpactFramework.cmake)
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include(cmake/CMakeFiles.cmake)
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################################################################################
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# Subdirectory processing
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################################################################################
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# Add the projects first so the Launcher can find them
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include(cmake/Projects.cmake)
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if(NOT INSTALLED_ENGINE)
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# Add the rest of the targets
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add_subdirectory(Code)
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add_subdirectory(Gems)
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else()
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ly_find_o3de_packages()
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endif()
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set(enabled_platforms
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${PAL_PLATFORM_NAME}
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${LY_PAL_TOOLS_ENABLED})
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foreach(restricted_platform ${PAL_RESTRICTED_PLATFORMS})
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if(restricted_platform IN_LIST enabled_platforms)
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add_subdirectory(restricted/${restricted_platform})
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endif()
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endforeach()
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add_subdirectory(scripts)
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# SPEC-1417 will investigate and fix this
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if(NOT PAL_PLATFORM_NAME STREQUAL "Mac")
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add_subdirectory(Tools/LyTestTools/tests/)
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add_subdirectory(Tools/RemoteConsole/ly_remote_console/tests/)
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endif()
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################################################################################
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# Post-processing
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################################################################################
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# Loop over the additional external subdirectories and invoke add_subdirectory on them
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foreach(external_directory ${LY_EXTERNAL_SUBDIRS})
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# Hash the extenal_directory name and append it to the Binary Directory section of add_subdirectory
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# This is to deal with potential situations where multiple external directories has the same last directory name
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# For example if D:/Company1/RayTracingGem and F:/Company2/Path/RayTracingGem were both added as a subdirectory
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file(REAL_PATH ${external_directory} full_directory_path)
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string(SHA256 full_directory_hash ${full_directory_path})
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# Truncate the full_directory_hash down to 8 characters to avoid hitting the Windows 260 character path limit
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# when the external subdirectory contains relative paths of significant length
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string(SUBSTRING ${full_directory_hash} 0 8 full_directory_hash)
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# Use the last directory as the suffix path to use for the Binary Directory
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get_filename_component(directory_name ${external_directory} NAME)
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add_subdirectory(${external_directory} ${CMAKE_BINARY_DIR}/${directory_name}-${full_directory_hash})
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endforeach()
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# The following steps have to be done after all targets are registered:
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# 1. generate a settings registry .setreg file for all ly_add_project_dependencies() and ly_add_target_dependencies() calls
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# to provide applications with the filenames of gem modules to load
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# This must be done before ly_delayed_target_link_libraries() as that inserts BUILD_DEPENDENCIE as MANUALLY_ADDED_DEPENDENCIES
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# if the build dependency is a MODULE_LIBRARY. That would cause a false load dependency to be generated
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ly_delayed_generate_settings_registry()
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# 2. link targets where the dependency was yet not declared, we need to have the declaration so we do different
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# linking logic depending on the type of target
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ly_delayed_target_link_libraries()
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# 3. generate a registry file for unit testing for platforms that support unit testing
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if(PAL_TRAIT_BUILD_TESTS_SUPPORTED)
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ly_delayed_generate_unit_test_module_registry()
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endif()
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# 4. inject runtime dependencies to the targets. We need to do this after (1) since we are going to walk through
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# the dependencies
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include(cmake/RuntimeDependencies.cmake)
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# 5. Perform test impact framework post steps once all of the targets have been enumerated
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ly_test_impact_post_step()
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# 6. Generate the O3DE find file and setup install locations for scripts, tools, assets etc., required by the engine
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if(NOT INSTALLED_ENGINE)
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ly_setup_o3de_install()
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endif() |