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muspectreTools.cmake
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#==============================================================================
# file muspectreTools.cmake
#
# @author Nicolas Richart <nicolas.,richart@epfl.ch>
#
# @date 11 Jan 2018
#
# @brief some tool to help to do stuff with cmake in µSpectre
#
# @section LICENSE
#
# Copyright © 2018 Till Junge
#
# µSpectre 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, or (at
# your option) any later version.
#
# µSpectre 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 should have received a copy of the GNU General Public License
# along with GNU Emacs; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
#[=[.rst:
µSpectreTools
-------------
This module provide some helper fuunctions for µSpectre
::
download_external_project(project_name
URL <url>
BACKEND <GIT|HG>
[TAG <tag>]
[THIRD_PARTY_SRC_DIR <dir>]
[NO_UPDATE]
)
Downloads the external project based on the uri
``THIRD_PARTY_SRC_DIR <dir>``
Specifies where to download the source
``NO_UPDATE``
Does not try to update existing download
::
mark_as_advanced_prefix(prefix)
Marks as advanced all variables whoes names start with prefix
::
add_external_dep(package
[IGNORE_SYSTEM]
[VERSION <version>]
[...])
Tries to find the external package and if not found but a local
${package}.cmake files exists, it includes it. The extra arguments are passed
to find_package()
``IGNORE_SYSTEM`` does not do the find_package
``VERSION`` Specifies the required minimum version
]=]
#
function(download_external_project project_name)
include(CMakeParseArguments)
set(_dep_flags
NO_UPDATE)
set(_dep_one_variables
URL
TAG
BACKEND
THIRD_PARTY_SRC_DIR
)
set(_dep_multi_variables)
cmake_parse_arguments(_dep_args
"${_dep_flags}"
"${_dep_one_variables}"
"${_dep_multi_variables}"
${ARGN}
)
if(NOT _dep_args_URL)
message(FATAL_ERROR "You have to provide a URL for the project ${project_name}")
endif()
if(NOT _dep_args_BACKEND)
message(FATAL_ERROR "You have to provide a backend to download ${project_name}")
endif()
if(_dep_args_TAG)
set(_ep_tag "${_dep_args_BACKEND}_TAG ${_dep_args_TAG}")
endif()
set(_src_dir ${PROJECT_SOURCE_DIR}/third-party/${project_name})
if (_dep_args_THIRD_PARTY_SRC_DIR)
set(_src_dir ${_dep_args_THIRD_PARTY_SRC_DIR}/${project_name})
endif()
if(EXISTS ${_src_dir} AND _dep_args_NO_UPDATE)
return()
endif()
set(_working_dir ${PROJECT_BINARY_DIR}/third-party/${project_name}-download)
file(WRITE ${_working_dir}/CMakeLists.txt
"
cmake_minimum_required(VERSION 3.1)
project(${project_name}-download NONE)
include(ExternalProject)
ExternalProject_Add(${project_name}
SOURCE_DIR ${_src_dir}
BINARY_DIR ${_working_dir}
${_dep_args_BACKEND}_REPOSITORY ${_dep_args_URL}
${_ep_tag}
CONFIGURE_COMMAND \"\"
BUILD_COMMAND \"\"
INSTALL_COMMAND \"\"
TEST_COMMAND \"\"
)
")
message(STATUS "Downloading ${project_name} ${_dep_args_GIT_TAG}")
execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
RESULT_VARIABLE _result
WORKING_DIRECTORY ${_working_dir}
OUTPUT_FILE ${_working_dir}/configure-out.log
ERROR_FILE ${_working_dir}/configure-error.log)
if(_result)
message(FATAL_ERROR "Something went wrong (${_result}) during the download"
" process of ${project_name} check the file"
" ${_working_dir}/configure-error.log for more details")
endif()
execute_process(COMMAND "${CMAKE_COMMAND}" --build .
RESULT_VARIABLE _result
WORKING_DIRECTORY ${_working_dir}
OUTPUT_FILE ${_working_dir}/build-out.log
ERROR_FILE ${_working_dir}/build-error.log)
if(_result)
message(FATAL_ERROR "Something went wrong (${_result}) during the download"
" process of ${project_name} check the file"
" ${_working_dir}/build-error.log for more details")
endif()
endfunction()
# ------------------------------------------------------------------------------
function(mark_as_advanced_prefix prefix)
get_property(_list DIRECTORY PROPERTY VARIABLES)
foreach(_var ${_list})
if("${_var}" MATCHES "^${prefix}.*")
mark_as_advanced(${_var})
endif()
endforeach()
endfunction()
# ------------------------------------------------------------------------------
function(add_external_package package)
include(CMakeParseArguments)
set(_cmake_includes ${PROJECT_SOURCE_DIR}/cmake)
set(_${package}_external_dir ${PROJECT_BINARY_DIR}/external)
set(_aep_flags
IGNORE_SYSTEM
)
set(_aep_one_variables
VERSION
)
set(_aep_multi_variables)
cmake_parse_arguments(_aep_args
"${_aep_flags}"
"${_aep_one_variables}"
"${_aep_multi_variables}"
${ARGN}
)
if(_aep_args_VERSION)
set(_${package}_version ${_aep_args_VERSION})
endif()
if(NOT EXISTS ${_cmake_includes}/${package}.cmake)
set(_required REQUIRED)
endif()
if(NOT _aep_args_IGNORE_SYSTEM)
find_package(${package} ${_${package}_version} ${_required} ${_aep_UNPARSED_ARGUMENTS} QUIET)
if(${package}_FOUND AND NOT ${package}_FOUND_EXTERNAL)
return()
endif()
endif()
if(EXISTS ${_cmake_includes}/${package}.cmake)
include(${_cmake_includes}/${package}.cmake)
endif()
endfunction()
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