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dft_tools/deps/external_dependency.cmake

96 lines
3.6 KiB
CMake

# Copyright (c) 2020 Simons Foundation
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You may obtain a copy of the License at
# https://www.gnu.org/licenses/gpl-3.0.txt
# Consider ROOT env variables in find_package
if(POLICY CMP0074)
cmake_policy(SET CMP0074 NEW)
endif()
# Make sure that imported targets are always global
get_property(IMPORTED_ALWAYS_GLOBAL GLOBAL PROPERTY IMPORTED_ALWAYS_GLOBAL)
if(NOT IMPORTED_ALWAYS_GLOBAL)
function(add_library)
set(_args ${ARGN})
if ("${_args}" MATCHES ";IMPORTED")
list(APPEND _args GLOBAL)
endif()
_add_library(${_args})
endfunction()
set_property(GLOBAL PROPERTY IMPORTED_ALWAYS_GLOBAL TRUE)
endif()
# Define External Dependency Function
function(external_dependency)
cmake_parse_arguments(ARG "EXCLUDE_FROM_ALL;BUILD_ALWAYS" "VERSION;GIT_REPO;GIT_TAG" "" ${ARGN})
# -- Was dependency already found?
get_property(${ARGV0}_FOUND GLOBAL PROPERTY ${ARGV0}_FOUND)
if(${ARGV0}_FOUND)
message(STATUS "Dependency ${ARGV0} was already resolved.")
return()
endif()
# -- Try to find package in system.
if(NOT ARG_BUILD_ALWAYS AND NOT Build_Deps STREQUAL "Always")
find_package(${ARGV0} ${ARG_VERSION} QUIET HINTS ${CMAKE_INSTALL_PREFIX})
if(${ARGV0}_FOUND)
message(STATUS "Found dependency ${ARGV0} in system ${${ARGV0}_ROOT}")
return()
elseif(Build_Deps STREQUAL "Never")
message(FATAL_ERROR "Could not find dependency ${ARGV0} in system. Please install the dependency manually or use -DBuild_Deps=IfNotFound during cmake configuration to automatically build all dependencies that are not found.")
endif()
endif()
# -- Build package from source
message(STATUS " =============== Configuring Dependency ${ARGV0} =============== ")
if(ARG_EXCLUDE_FROM_ALL)
set(subdir_opts EXCLUDE_FROM_ALL)
set(Build_Tests OFF)
set(Build_Documentation OFF)
endif()
if(IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${ARGV0})
message(STATUS "Found sources for dependency ${ARGV0} at ${CMAKE_CURRENT_SOURCE_DIR}/${ARGV0}")
add_subdirectory(${ARGV0} ${subdir_opts})
elseif(IS_DIRECTORY ${CMAKE_SOURCE_DIR}/deps/${ARGV0})
message(STATUS "Found sources for dependency ${ARGV0} at ${CMAKE_SOURCE_DIR}/deps/${ARGV0}")
add_subdirectory(${ARGV0} ${subdir_opts})
elseif(ARG_GIT_REPO)
set(bin_dir ${CMAKE_CURRENT_BINARY_DIR}/${ARGV0})
set(src_dir ${bin_dir}_src)
if(NOT IS_DIRECTORY ${src_dir})
if(ARG_GIT_TAG)
set(clone_opts --branch ${ARG_GIT_TAG} -c advice.detachedHead=false)
endif()
if(NOT GIT_EXECUTABLE)
find_package(Git REQUIRED)
endif()
execute_process(COMMAND ${GIT_EXECUTABLE} clone ${ARG_GIT_REPO} --depth 1 ${clone_opts} ${src_dir}
RESULT_VARIABLE clone_failed
ERROR_VARIABLE clone_error
)
if(clone_failed)
message(FATAL_ERROR "Failed to clone sources for dependency ${ARGV0}.\n ${clone_error}")
endif()
endif()
add_subdirectory(${src_dir} ${bin_dir} ${subdir_opts})
else()
message(FATAL_ERROR "Could not find or build dependency ${ARGV0}")
endif()
message(STATUS " =============== End ${ARGV0} Configuration =============== ")
set_property(GLOBAL PROPERTY ${ARGV0}_FOUND TRUE)
endfunction()