File: external-gtest.cmake

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# ########################################################################
# Copyright (C) 2016-2024 Advanced Micro Devices, Inc. All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell cop-
# ies of the Software, and to permit persons to whom the Software is furnished
# to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IM-
# PLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNE-
# CTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# ########################################################################


message(STATUS "Configuring gtest external dependency")
include(ExternalProject)

# set(gtest_cmake_args -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>/package)
set(PREFIX_GTEST ${CMAKE_INSTALL_PREFIX} CACHE PATH "Location where boost should install, defaults to /usr/local")
set(gtest_cmake_args -DCMAKE_INSTALL_PREFIX=${PREFIX_GTEST})
append_cmake_cli_arguments(gtest_cmake_args gtest_cmake_args)

set(gtest_git_repository "https://github.com/google/googletest.git" CACHE STRING "URL to download gtest from")
set(gtest_git_tag "release-1.11.0" CACHE STRING "URL to download gtest from")

if(MSVC)
  list(APPEND gtest_cmake_args -Dgtest_force_shared_crt=ON)
# else()
  # GTEST_USE_OWN_TR1_TUPLE necessary to compile with hipcc
  # list(APPEND gtest_cmake_args -DGTEST_USE_OWN_TR1_TUPLE=1)
endif()

if(CMAKE_CONFIGURATION_TYPES)
  set(gtest_make
        COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --config Release
        COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --config Debug
  )
else()
  # Add build thread in addition to the number of cores that we have
  include(ProcessorCount)
  ProcessorCount(Cores)

  # If we are not using an IDE, assume nmake with visual studio
  if(MSVC)
    set(gtest_make "nmake")
  else()
    set(gtest_make "make")

    # The -j parameter does not work with nmake
    if(NOT Cores EQUAL 0)
      math(EXPR Cores "${Cores} + 1 ")
      list(APPEND gtest_make -j ${Cores})
    else()
      # If we could not detect # of cores, assume 1 core and add an additional build thread
      list(APPEND gtest_make -j 2)
    endif()
  endif()

  message(STATUS "ExternalGmock using (" ${Cores} ") cores to build with")
endif()

# message(STATUS "gtest_make (" ${gtest_make} ") ")
# message(STATUS "gtest_cmake_args (" ${gtest_cmake_args} ") ")

# Master branch has a new structure that combines googletest with googlemock
ExternalProject_Add(
  googletest
  PREFIX ${CMAKE_BINARY_DIR}/gtest
  GIT_REPOSITORY ${gtest_git_repository}
  GIT_TAG ${gtest_git_tag}
  CMAKE_ARGS ${gtest_cmake_args}
  BUILD_COMMAND ${gtest_make}
  LOG_BUILD 1
  INSTALL_COMMAND ""
  LOG_INSTALL 1
)

ExternalProject_Get_Property(googletest source_dir)

# For visual studio, the path 'debug' is hardcoded because that is the default VS configuration for a build.
# Doesn't matter if its the gtest or gtestd project above
set(package_dir "${PREFIX_GTEST}")
if(CMAKE_CONFIGURATION_TYPES)
  # Create a package by bundling libraries and header files
  if(BUILD_64)
    set(LIB_DIR lib64)
  else()
    set(LIB_DIR lib)
  endif()

  set(gtest_lib_dir "<BINARY_DIR>/${LIB_DIR}")
  ExternalProject_Add_Step(googletest createPackage
    COMMAND ${CMAKE_COMMAND} -E copy_directory ${gtest_lib_dir}/Debug ${package_dir}/${LIB_DIR}
    COMMAND ${CMAKE_COMMAND} -E copy_directory ${gtest_lib_dir}/Release ${package_dir}/${LIB_DIR}
    COMMAND ${CMAKE_COMMAND} -E copy_directory ${gtest_lib_dir}/Debug ${package_dir}/${LIB_DIR}
    COMMAND ${CMAKE_COMMAND} -E copy_directory ${gtest_lib_dir}/Release ${package_dir}/${LIB_DIR}
    COMMAND ${CMAKE_COMMAND} -E copy_directory <SOURCE_DIR>/include ${package_dir}/include
    COMMAND ${CMAKE_COMMAND} -E copy_directory <SOURCE_DIR>/gtest/include/gtest ${package_dir}/include/gtest
    DEPENDEES install
  )
endif()

set_property(TARGET googletest PROPERTY FOLDER "extern")
ExternalProject_Get_Property(googletest install_dir)
ExternalProject_Get_Property(googletest binary_dir)

# For use by the user of ExternalGtest.cmake
set(GTEST_INSTALL_ROOT ${install_dir})
set(GTEST_BINARY_ROOT ${binary_dir})