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ExternalProjectDependency.cmake
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ExternalProjectDependency.cmake
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#.rst:
# ExternalProjectDependency
# -------------------------
#
# .. only:: html
#
# .. contents::
###########################################################################
#
# Library: CTK
#
# Copyright (c) Kitware 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
#
# https://www.apache.org/licenses/LICENSE-2.0.txt
#
# 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.
#
###########################################################################
include(CMakeParseArguments)
#.rst:
# Global Variables
# ^^^^^^^^^^^^^^^^
#.rst:
# .. cmake:variable:: EXTERNAL_PROJECT_DIR
#
# This variable describes the directory in which external project files
# matching ``<EXTERNAL_PROJECT_FILE_PREFIX><projectname>.cmake`` expression are globbed.
#
if(NOT EXISTS "${EXTERNAL_PROJECT_DIR}")
set(EXTERNAL_PROJECT_DIR ${CMAKE_SOURCE_DIR}/SuperBuild)
endif()
#.rst:
# .. cmake:variable:: EXTERNAL_PROJECT_ADDITIONAL_DIR
#
# If set, this variable represents an other directory in which external project files
# are searched for if not already found in ``EXTERNAL_PROJECT_DIR``.
#.rst:
# .. cmake:variable:: EXTERNAL_PROJECT_ADDITIONAL_DIRS
#
# If set, this variable represents additional directories in which external project files
# are searched for if not already found in ``EXTERNAL_PROJECT_DIR`` and
# ``EXTERNAL_PROJECT_ADDITIONAL_DIR``.
#.rst:
# .. cmake:variable:: EXTERNAL_PROJECT_FILE_PREFIX
#
# This variable describes the prefix of the external project files looked up in
# ``EXTERNAL_PROJECT_DIR``. It defaults to ``External_``.
#
if(NOT DEFINED EXTERNAL_PROJECT_FILE_PREFIX)
set(EXTERNAL_PROJECT_FILE_PREFIX "External_")
endif()
#.rst:
# .. cmake:variable:: SUPERBUILD_TOPLEVEL_PROJECT
#
# This variable can be set to explicitly identify the name of the top-level project.
# If not set, it default to the value of ``CMAKE_PROJECT_NAME``.
if(NOT DEFINED SUPERBUILD_TOPLEVEL_PROJECT)
if(NOT DEFINED CMAKE_PROJECT_NAME)
message(FATAL_ERROR "Failed to initialize variable SUPERBUILD_TOPLEVEL_PROJECT. Variable CMAKE_PROJECT_NAME is not defined.")
endif()
set(SUPERBUILD_TOPLEVEL_PROJECT ${CMAKE_PROJECT_NAME})
endif()
#.rst:
# .. cmake:variable:: EP_LIST_SEPARATOR
#
# This variable is used to separate list items when passed in various external project
# ``..._COMMAND`` options.
#
# If defaults to ``^^``.
if(NOT DEFINED EP_LIST_SEPARATOR)
set(EP_LIST_SEPARATOR "^^")
endif()
#.rst:
# .. cmake:variable:: EP_GIT_PROTOCOL
#
# The value of this variable is always set to ``https``.
#
# Following the removal of git protocol by GitHub, the option
# ``<SUPERBUILD_TOPLEVEL_PROJECT>_USE_GIT_PROTOCOL`` is obsolete.
# It allowed to toggle between ``git`` and ``https``.
# If this option is enabled, a warning is reported and the option is forced to ``OFF``.
#
# Similarly, if the variable ``EP_GIT_PROTOCOL`` is already set to ``git``, a warning is reported
# and the value is forced to ``https``.
#
# See details at https://github.blog/2021-09-01-improving-git-protocol-security-github
#
# The variable ``EP_GIT_PROTOCOL`` can be used when adding external project. For example:
#
# .. code-block:: cmake
#
# ExternalProject_Add(${proj}
# ${${proj}_EP_ARGS}
# GIT_REPOSITORY "${EP_GIT_PROTOCOL}://github.com/Foo/Foo.git"
# [...]
# )
#
if(DEFINED ${SUPERBUILD_TOPLEVEL_PROJECT}_USE_GIT_PROTOCOL AND ${SUPERBUILD_TOPLEVEL_PROJECT}_USE_GIT_PROTOCOL)
message(WARNING "Forcing ${SUPERBUILD_TOPLEVEL_PROJECT}_USE_GIT_PROTOCOL to OFF (Already set to ON in current scope)")
set(${SUPERBUILD_TOPLEVEL_PROJECT}_USE_GIT_PROTOCOL OFF CACHE BOOL "" FORCE)
endif()
if(DEFINED EP_GIT_PROTOCOL)
if("${EP_GIT_PROTOCOL}" STREQUAL "git")
get_property(_value_set_in_cache CACHE EP_GIT_PROTOCOL PROPERTY VALUE SET)
if(_value_set_in_cache)
message(WARNING "Forcing EP_GIT_PROTOCOL cache variable to 'https' (Already set to '${EP_GIT_PROTOCOL}' in current scope)")
set(EP_GIT_PROTOCOL "https" CACHE STRING "" FORCE)
else()
message(WARNING "Forcing EP_GIT_PROTOCOL variable to 'https' (Already set to '${EP_GIT_PROTOCOL}' in current scope)")
set(EP_GIT_PROTOCOL "https")
endif()
endif()
else()
set(EP_GIT_PROTOCOL "https")
endif()
# Compute -G arg for configuring external projects with the same CMake generator:
if(CMAKE_EXTRA_GENERATOR)
set(EP_CMAKE_GENERATOR "${CMAKE_EXTRA_GENERATOR} - ${CMAKE_GENERATOR}")
else()
set(EP_CMAKE_GENERATOR "${CMAKE_GENERATOR}")
endif()
set(EP_CMAKE_GENERATOR_PLATFORM "${CMAKE_GENERATOR_PLATFORM}")
set(EP_CMAKE_GENERATOR_TOOLSET "${CMAKE_GENERATOR_TOOLSET}")
#.rst:
# Functions
# ^^^^^^^^^
#.rst:
# .. cmake:function:: mark_as_superbuild
#
# .. code-block:: cmake
#
# mark_as_superbuild(<varname1>[:<vartype1>] [<varname2>[:<vartype2>] [...]])
#
# .. code-block:: cmake
#
# mark_as_superbuild(
# VARS <varname1>[:<vartype1>] [<varname2>[:<vartype2>] [...]]
# [PROJECTS <projectname> [<projectname> [...]] | ALL_PROJECTS]
# [LABELS <label1> [<label2> [...]]]
# )
#
# .. code-block:: cmake
#
# PROJECTS corresponds to a list of <projectname> that will be added using 'ExternalProject_Add' function.
# If not specified and called within a project file, it defaults to the value of 'SUPERBUILD_TOPLEVEL_PROJECT'.
# If instead 'ALL_PROJECTS' is specified, the variables and labels will be passed to all projects.
#
# VARS is an expected list of variables specified as <varname>:<vartype> to pass to <projectname>
#
#
# LABELS is an optional list of label to associate with the variable names specified using 'VARS' and passed to
# the <projectname> as CMake CACHE args of the form:
# -D<projectname>_EP_LABEL_<label1>=<varname1>;<varname2>[...]
# -D<projectname>_EP_LABEL_<label2>=<varname1>;<varname2>[...]
#
function(mark_as_superbuild)
set(options ALL_PROJECTS CMAKE_CMD)
set(oneValueArgs)
set(multiValueArgs VARS PROJECTS LABELS)
cmake_parse_arguments(_sb "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
set(_vars ${_sb_UNPARSED_ARGUMENTS})
set(_named_parameters_expected 0)
if(_sb_PROJECTS OR _sb_ALL_PROJECTS OR _sb_LABELS OR _sb_VARS)
set(_named_parameters_expected 1)
set(_vars ${_sb_VARS})
endif()
if(_named_parameters_expected AND _sb_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Arguments '${_sb_UNPARSED_ARGUMENTS}' should be associated with VARS parameter !")
endif()
if(_sb_PROJECTS AND _sb_ALL_PROJECTS)
message(FATAL_ERROR "Arguments 'PROJECTS' and 'ALL_PROJECTS' are mutually exclusive !")
endif()
foreach(var ${_vars})
set(_type_specified 0)
if(var MATCHES ":")
set(_type_specified 1)
endif()
# XXX Display warning with variable type is also specified for cache variable.
set(_var ${var})
if(NOT _type_specified)
get_property(_type_set_in_cache CACHE ${_var} PROPERTY TYPE SET)
set(_var_name ${_var})
set(_var_type "STRING")
if(_type_set_in_cache)
get_property(_var_type CACHE ${_var_name} PROPERTY TYPE)
endif()
set(_var ${_var_name}:${_var_type})
endif()
list(APPEND _vars_with_type ${_var})
endforeach()
if(_sb_ALL_PROJECTS)
set(optional_arg_ALL_PROJECTS "ALL_PROJECTS")
else()
set(optional_arg_ALL_PROJECTS PROJECTS ${_sb_PROJECTS})
endif()
_sb_append_to_cmake_args(
VARS ${_vars_with_type} LABELS ${_sb_LABELS} ${optional_arg_ALL_PROJECTS})
endfunction()
#
# _sb_extract_varname_and_vartype(<cmake_varname_and_type> <varname_var> [<vartype_var>])
#
# <cmake_varname_and_type> corresponds to variable name and variable type passed as "<varname>:<vartype>"
#
# <varname_var> will be set to "<varname>"
#
# <vartype_var> is an optional variable name that will be set to "<vartype>"
#
function(_sb_extract_varname_and_vartype cmake_varname_and_type varname_var)
set(_vartype_var "${ARGV2}")
string(REPLACE ":" ";" varname_and_vartype ${cmake_varname_and_type})
list(GET varname_and_vartype 0 _varname)
list(GET varname_and_vartype 1 _vartype)
set(${varname_var} ${_varname} PARENT_SCOPE)
if(_vartype_var MATCHES ".+")
set(${_vartype_var} ${_vartype} PARENT_SCOPE)
endif()
endfunction()
function(_sb_list_to_string separator input_list output_string_var)
set(_string "")
# Get list length
list(LENGTH input_list list_length)
# If the list has 0 or 1 element, there is no need to loop over.
if(list_length LESS 2)
set(_string "${input_list}")
else()
math(EXPR last_element_index "${list_length} - 1")
foreach(index RANGE ${last_element_index})
# Get current item_value
list(GET input_list ${index} item_value)
if(NOT item_value STREQUAL "")
# .. and append non-empty value to output string
set(_string "${_string}${item_value}")
# Append separator if current element is NOT the last one.
if(NOT index EQUAL last_element_index)
set(_string "${_string}${separator}")
endif()
endif()
endforeach()
endif()
set(${output_string_var} ${_string} PARENT_SCOPE)
endfunction()
#
# _sb_cmakevar_to_cmakearg(<cmake_varname_and_type> <cmake_arg_var> <has_cfg_intdir_var> [<varname_var> [<vartype_var>]])
#
# <cmake_varname_and_type> corresponds to variable name and variable type passed as "<varname>:<vartype>"
#
# <cmake_arg_var> is a variable name that will be set to "-D<varname>:<vartype>=${<varname>}"
#
# <has_int_dir_var> is set to either TRUE or FALSE.
# FALSE means that the value does NOT reference ${CMAKE_CFG_INTDIR} and
# the generated cmake argument should be passed to ExternalProject_Add as CMAKE_CACHE_ARGS.
# TRUEmeans that the value does reference ${CMAKE_CFG_INTDIR} and
# the generated cmake argument should be passed to ExternalProject_Add as CMAKE_ARGS.
#
# <varname_var> is an optional variable name that will be set to "<varname>"
#
# <vartype_var> is an optional variable name that will be set to "<vartype>"
#
function(_sb_cmakevar_to_cmakearg cmake_varname_and_type cmake_arg_var has_cfg_intdir_var)
set(_varname_var "${ARGV3}")
set(_vartype_var "${ARGV4}")
_sb_extract_varname_and_vartype(${cmake_varname_and_type} _varname _vartype)
set(_var_value "${${_varname}}")
# Use cache value unless it is INTERNAL
if(_vartype STREQUAL "INTERNAL")
set(_vartype "STRING")
else()
get_property(_value_set_in_cache CACHE ${_varname} PROPERTY VALUE SET)
if(_value_set_in_cache)
get_property(_var_value CACHE ${_varname} PROPERTY VALUE)
endif()
endif()
set(_has_cfg_intdir FALSE)
if(CMAKE_CONFIGURATION_TYPES)
string(FIND "${_var_value}" ${CMAKE_CFG_INTDIR} _index)
if(NOT _index EQUAL -1)
# Separate list item with <EP_LIST_SEPARATOR>
_sb_list_to_string(${EP_LIST_SEPARATOR} "${_var_value}" _var_value)
set(_has_cfg_intdir TRUE)
endif()
endif()
if(NOT _has_cfg_intdir)
string(REPLACE "\"" "\\\"" _var_value "${_var_value}")
endif()
set(${cmake_arg_var} -D${_varname}:${_vartype}=${_var_value} PARENT_SCOPE)
set(${has_cfg_intdir_var} ${_has_cfg_intdir} PARENT_SCOPE)
if(_varname_var MATCHES ".+")
set(${_varname_var} ${_varname} PARENT_SCOPE)
endif()
if(_vartype_var MATCHES ".+")
set(${_vartype_var} ${_vartype} PARENT_SCOPE)
endif()
endfunction()
set(_ALL_PROJECT_IDENTIFIER "ALLALLALL")
#
# _sb_append_to_cmake_args(
# [VARS <varname1>:<vartype1> [<varname2>:<vartype2> [...]]]
# [PROJECTS <projectname> [<projectname> [...]] | ALL_PROJECTS]
# [LABELS <label1> [<label2> [...]]]
# )
#
# PROJECTS corresponds to a list of <projectname> that will be added using 'ExternalProject_Add' function.
# If not specified and called within a project file, it defaults to the value of 'SUPERBUILD_TOPLEVEL_PROJECT'.
# If instead 'ALL_PROJECTS' is specified, the variables and labels will be passed to all projects.
#
# VARS is an expected list of variables specified as <varname>:<vartype> to pass to <projectname>
#
#
# LABELS is an optional list of label to associate with the variable names specified using 'VARS' and passed to
# the <projectname> as CMake CACHE args of the form:
# -D<projectname>_EP_LABEL_<label1>=<varname1>;<varname2>[...]
# -D<projectname>_EP_LABEL_<label2>=<varname1>;<varname2>[...]
#
function(_sb_append_to_cmake_args)
set(options ALL_PROJECTS)
set(oneValueArgs)
set(multiValueArgs VARS PROJECTS LABELS)
cmake_parse_arguments(_sb "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
if(NOT _sb_PROJECTS AND NOT _sb_ALL_PROJECTS)
set(_sb_PROJECTS ${SUPERBUILD_TOPLEVEL_PROJECT})
endif()
if(_sb_ALL_PROJECTS)
set(_sb_PROJECTS ${_ALL_PROJECT_IDENTIFIER})
endif()
foreach(_sb_PROJECT ${_sb_PROJECTS})
set(_ep_varnames "")
foreach(varname_and_vartype ${_sb_VARS})
if(NOT TARGET ${_sb_PROJECT})
set_property(GLOBAL APPEND PROPERTY ${_sb_PROJECT}_EP_CMAKE_ARGS ${varname_and_vartype})
_sb_extract_varname_and_vartype(${varname_and_vartype} _varname)
else()
message(FATAL_ERROR "Function _sb_append_to_cmake_args not allowed because project '${_sb_PROJECT}' already added !")
endif()
list(APPEND _ep_varnames ${_varname})
endforeach()
if(_sb_LABELS)
set_property(GLOBAL APPEND PROPERTY ${_sb_PROJECT}_EP_LABELS ${_sb_LABELS})
foreach(label ${_sb_LABELS})
set_property(GLOBAL APPEND PROPERTY ${_sb_PROJECT}_EP_LABEL_${label} ${_ep_varnames})
endforeach()
endif()
endforeach()
endfunction()
#.rst:
# .. cmake:function:: ExternalProject_DeclareLabels
#
# .. code-block:: cmake
#
# ExternalProject_DeclareLabels(
# [PROJECTS <projectname> [<projectname> [...]] | ALL_PROJECTS]
# LABELS <label1> [<label2> [...]]
# )
#
# .. code-block:: cmake
#
# PROJECTS corresponds to a list of <projectname> that will be added using 'ExternalProject_Add' function.
# If not specified and called within a project file, it defaults to the value of 'SUPERBUILD_TOPLEVEL_PROJECT'.
# If instead 'ALL_PROJECTS' is specified, the variables and labels will be passed to all projects.
#
# LABELS is a list of label to pass to the <projectname> as CMake CACHE args of the
# form -D<projectname>_EP_LABEL_<label>= unless specific variables
# have been associated with the labels using mark_as_superbuild.
#
function(ExternalProject_DeclareLabels)
set(options ALL_PROJECTS)
set(oneValueArgs)
set(multiValueArgs PROJECTS LABELS)
cmake_parse_arguments(_sb "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
if(_sb_PROJECTS AND _sb_ALL_PROJECTS)
message(FATAL_ERROR "Arguments 'PROJECTS' and 'ALL_PROJECTS' are mutually exclusive !")
endif()
if(_sb_ALL_PROJECTS)
set(optional_arg_ALL_PROJECTS "ALL_PROJECTS")
else()
set(optional_arg_ALL_PROJECTS PROJECTS ${_sb_PROJECTS})
endif()
_sb_append_to_cmake_args(
LABELS ${_sb_LABELS} ${optional_arg_ALL_PROJECTS})
endfunction()
function(_sb_get_external_project_arguments proj varname)
mark_as_superbuild(${SUPERBUILD_TOPLEVEL_PROJECT}_USE_SYSTEM_${proj}:BOOL)
function(_sb_collect_args proj)
# Set list of CMake args associated with each label
get_property(_labels GLOBAL PROPERTY ${proj}_EP_LABELS)
if(_labels)
list(REMOVE_DUPLICATES _labels)
foreach(label ${_labels})
get_property(${proj}_EP_LABEL_${label} GLOBAL PROPERTY ${proj}_EP_LABEL_${label})
if(${proj}_EP_LABEL_${label})
list(REMOVE_DUPLICATES ${proj}_EP_LABEL_${label})
endif()
_sb_append_to_cmake_args(PROJECTS ${proj}
VARS ${proj}_EP_LABEL_${label}:STRING)
endforeach()
endif()
get_property(_args GLOBAL PROPERTY ${proj}_EP_CMAKE_ARGS)
foreach(var ${_args})
_sb_cmakevar_to_cmakearg(${var} cmake_arg _has_cfg_intdir)
set(_ep_property "CMAKE_CACHE_ARGS")
if(_has_cfg_intdir)
set(_ep_property "CMAKE_ARGS")
endif()
set_property(GLOBAL APPEND PROPERTY ${proj}_EP_PROPERTY_${_ep_property} ${cmake_arg})
endforeach()
endfunction()
_sb_collect_args(${proj})
_sb_collect_args(${_ALL_PROJECT_IDENTIFIER})
set(_ep_arguments "")
# Option CMAKE_FIND_USE_PACKAGE_REGISTRY was introduced in CMake 3.16
if(NOT CMAKE_VERSION VERSION_LESS "3.16")
if(NOT DEFINED CMAKE_FIND_USE_PACKAGE_REGISTRY)
set(CMAKE_FIND_USE_PACKAGE_REGISTRY OFF)
endif()
else()
if(NOT DEFINED CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY)
set(CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY ON)
endif()
endif()
# Set list of CMake options to propagate
set(_options
CMAKE_EXPORT_COMPILE_COMMANDS:BOOL
CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY:BOOL
CMAKE_JOB_POOL_COMPILE:STRING
CMAKE_JOB_POOL_LINK:STRING
CMAKE_JOB_POOLS:STRING
)
if(NOT CMAKE_VERSION VERSION_LESS "3.16")
list(APPEND _options
CMAKE_FIND_USE_PACKAGE_REGISTRY:BOOL
)
endif()
# Automatically propagate CMake options
foreach(_cmake_option_and_type IN LISTS _options)
_sb_extract_varname_and_vartype(${_cmake_option_and_type} _cmake_option _cmake_option_type)
if(DEFINED ${_cmake_option})
list(APPEND _ep_arguments CMAKE_CACHE_ARGS
-D${_cmake_option}:${_cmake_option_type}=${${_cmake_option}}
)
endif()
endforeach()
foreach(property CMAKE_ARGS CMAKE_CACHE_ARGS)
get_property(${proj}_EP_PROPERTY_${property} GLOBAL PROPERTY ${proj}_EP_PROPERTY_${property})
get_property(${_ALL_PROJECT_IDENTIFIER}_EP_PROPERTY_${property} GLOBAL PROPERTY ${_ALL_PROJECT_IDENTIFIER}_EP_PROPERTY_${property})
set(_all ${${proj}_EP_PROPERTY_${property}} ${${_ALL_PROJECT_IDENTIFIER}_EP_PROPERTY_${property}})
list(LENGTH _all _num_properties)
if(_num_properties GREATER 0)
list(APPEND _ep_arguments ${property} ${_all})
endif()
endforeach()
list(APPEND _ep_arguments LIST_SEPARATOR ${EP_LIST_SEPARATOR})
list(APPEND _ep_arguments CMAKE_GENERATOR ${_sb_CMAKE_GENERATOR})
if(CMAKE_VERSION VERSION_GREATER "3.0")
list(APPEND _ep_arguments CMAKE_GENERATOR_PLATFORM ${_sb_CMAKE_GENERATOR_PLATFORM})
endif()
list(APPEND _ep_arguments CMAKE_GENERATOR_TOOLSET ${_sb_CMAKE_GENERATOR_TOOLSET})
if(CMAKE_VERSION VERSION_EQUAL "3.4" OR CMAKE_VERSION VERSION_GREATER "3.4")
# USES_TERMINAL_* options were introduced in CMake 3.4
foreach(step IN ITEMS DOWNLOAD UPDATE CONFIGURE BUILD TEST INSTALL)
list(APPEND _ep_arguments
USES_TERMINAL_${step} 1
)
endforeach()
endif()
if(CMAKE_VERSION VERSION_EQUAL "3.24" OR CMAKE_VERSION VERSION_GREATER "3.24")
# See https://cmake.org/cmake/help/latest/policy/CMP0135.html
list(APPEND _ep_arguments DOWNLOAD_EXTRACT_TIMESTAMP 1)
endif()
set(${varname} ${_ep_arguments} PARENT_SCOPE)
endfunction()
function(_sb_update_indent proj)
superbuild_stack_size(SB_PROJECT_STACK _stack_size)
set(_indent "")
if(_stack_size GREATER 0)
foreach(not_used RANGE 1 ${_stack_size})
set(_indent " ${_indent}")
endforeach()
endif()
set_property(GLOBAL PROPERTY SUPERBUILD_${proj}_INDENT ${_indent})
endfunction()
#.rst:
# .. cmake:function:: ExternalProject_Message
#
# .. code-block:: cmake
#
# ExternalProject_Message(<project_name> <msg> [condition])
#
function(ExternalProject_Message proj msg)
set(_display 1)
if(NOT "x${ARGV2}" STREQUAL "x")
set(_display ${ARGN})
endif()
if(${_display})
get_property(_indent GLOBAL PROPERTY SUPERBUILD_${proj}_INDENT)
message(STATUS "SuperBuild - ${_indent}${msg}")
endif()
endfunction()
#
# superbuild_stack_content(<stack_name> <output_var>)
#
# <stack_name> corresponds to the name of stack.
#
# <output_var> is the name of CMake variable that will be set with the content
# of the stack identified by <stack_name>.
#
function(superbuild_stack_content stack_name output_var)
get_property(_stack GLOBAL PROPERTY ${stack_name})
set(${output_var} ${_stack} PARENT_SCOPE)
endfunction()
#
# superbuild_stack_size(<stack_name> <output_var>)
#
# <stack_name> corresponds to the name of stack.
#
# <output_var> is the name of CMake variable that will be set with the size
# of the stack identified by <stack_name>.
#
function(superbuild_stack_size stack_name output_var)
get_property(_stack GLOBAL PROPERTY ${stack_name})
list(LENGTH _stack _stack_size)
set(${output_var} ${_stack_size} PARENT_SCOPE)
endfunction()
#
# superbuild_stack_push(<stack_name> <value>)
#
# <stack_name> corresponds to the name of stack.
#
# <value> is appended to the stack identified by <stack_name>.
#
function(superbuild_stack_push stack_name value)
set_property(GLOBAL APPEND PROPERTY ${stack_name} ${value})
endfunction()
#
# superbuild_stack_pop(<stack_name> <item_var>)
#
# <stack_name> corresponds to the name of stack.
#
# <item_var> names a CMake variable that will be set with the item
# removed from the stack identified by <stack_name>
#
function(superbuild_stack_pop stack_name item_var)
get_property(_stack GLOBAL PROPERTY ${stack_name})
list(LENGTH _stack _stack_size)
if(_stack_size GREATER 0)
math(EXPR _index_to_remove "${_stack_size} - 1")
list(GET _stack ${_index_to_remove} _item)
list(REMOVE_AT _stack ${_index_to_remove})
set_property(GLOBAL PROPERTY ${stack_name} ${_stack})
set(${item_var} ${_item} PARENT_SCOPE)
endif()
endfunction()
function(_sb_is_optional proj output_var)
set(_include_project 1)
if(COMMAND superbuild_is_external_project_includable)
superbuild_is_external_project_includable("${proj}" _include_project)
endif()
set(optional 1)
if(_include_project)
set(optional 0)
endif()
set(${output_var} ${optional} PARENT_SCOPE)
endfunction()
#.rst:
# .. cmake:function:: ExternalProject_Add_Dependencies
#
# .. code-block:: cmake
#
# ExternalProject_Add_Dependencies(<project_name>
# DEPENDS <dep1> [<dep2> [...]]
# )
#
#
# .. code-block:: cmake
#
# DEPENDS List of additional dependencies to associate with `<project_name>`.
#
macro(ExternalProject_Add_Dependencies project_name)
set(options)
set(oneValueArgs)
set(multiValueArgs DEPENDS)
cmake_parse_arguments(_epad "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
# Sanity checks
if(x${project_name} STREQUAL xDEPENDS)
message(FATAL_ERROR "Argument <project_name> is missing !")
endif()
if(_epad_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Invalid arguments: ${_epad_UNPARSED_ARGUMENTS}")
endif()
if(NOT _epad_DEPENDS)
message(FATAL_ERROR "Argument DEPENDS is missing")
endif()
set_property(GLOBAL PROPERTY SB_${project_name}_ADDITIONAL_DEPENDS ${_epad_DEPENDS})
endmacro()
#.rst:
# .. cmake:function:: ExternalProject_Include_Dependencies
#
# .. code-block:: cmake
#
# ExternalProject_Include_Dependencies(<project_name>
# [PROJECT_VAR <project_var>]
# [EP_ARGS_VAR <external_project_args_var>]
# [DEPENDS_VAR <depends_var>]
# [USE_SYSTEM_VAR <use_system_var>]
# [SUPERBUILD_VAR <superbuild_var>]
# [CMAKE_GENERATOR <cmake_generator>]
# [CMAKE_GENERATOR_PLATFORM <cmake_generator_platform>]
# [CMAKE_GENERATOR_TOOLSET <cmake_generator_toolset>]
# )
#
#
# .. code-block:: cmake
#
# PROJECT_VAR Name of the variable containing the name of the included project.
# By default, it is `proj` and it is set to `<project_name>`.
#
# EP_ARGS_VAR Name of the variable listing arguments to pass to ExternalProject.
# If not specified, variable name default to `<project_name>_EP_ARGS`.
#
# DEPENDS_VAR Name of the variable containing the dependency of the included project.
# By default, it is `<project_name>_DEPENDS`.
#
#
# USE_SYSTEM_VAR Name of the variable indicating if the system version of <project_name>
# should be looked up. Lookup of the project is left to the developer implementing
# the external project file.
# By default, it is `<SUPERBUILD_TOPLEVEL_PROJECT>_USE_SYSTEM_<project_name>`.
#
# SUPERBUILD_VAR Name of the variable indicating if the top-level or inner project is being built.
# By default, it is `<SUPERBUILD_TOPLEVEL_PROJECT>_SUPERBUILD`.
#
#
# CMAKE_GENERATOR
# CMAKE_GENERATOR_PLATFORM
# CMAKE_GENERATOR_TOOLSET These three options allow to overwrite the values set in the top-level project that
# would otherwise automatically be propagated to dependent projects.
#
macro(ExternalProject_Include_Dependencies project_name)
set(options)
set(oneValueArgs PROJECT_VAR DEPENDS_VAR EP_ARGS_VAR USE_SYSTEM_VAR SUPERBUILD_VAR
CMAKE_GENERATOR
CMAKE_GENERATOR_PLATFORM
CMAKE_GENERATOR_TOOLSET
)
set(multiValueArgs)
cmake_parse_arguments(_sb "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
# Sanity checks
if(x${project_name} STREQUAL xPROJECT_VAR
OR x${project_name} STREQUAL xEP_ARGS_VAR
OR x${project_name} STREQUAL xDEPENDS_VAR
OR x${project_name} STREQUAL xUSE_SYSTEM_VAR
OR x${project_name} STREQUAL xSUPERBUILD_VAR
OR x${project_name} STREQUAL xCMAKE_GENERATOR
OR x${project_name} STREQUAL xCMAKE_GENERATOR_PLATFORM
OR x${project_name} STREQUAL xCMAKE_GENERATOR_TOOLSET
)
message(FATAL_ERROR "Argument <project_name> is missing !")
endif()
if(_sb_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Invalid arguments: ${_sb_UNPARSED_ARGUMENTS}")
endif()
# Set default for optional PROJECT_VAR parameter
if(NOT _sb_PROJECT_VAR)
set(_sb_PROJECT_VAR proj)
set(${_sb_PROJECT_VAR} ${project_name})
#message("[${project_name}] Setting _sb_PROJECT_VAR with default value '${_sb_PROJECT_VAR}'")
endif()
if(_sb_PROJECT_VAR AND NOT x${project_name} STREQUAL x${${_sb_PROJECT_VAR}})
message(FATAL_ERROR
"Argument <project_name>:${project_name} and PROJECT_VAR:${_sb_PROJECT_VAR}:${${_sb_PROJECT_VAR}} are different !")
endif()
set(_sb_proj ${project_name})
# Skip if project already included
get_property(_is_included GLOBAL PROPERTY SB_${_sb_proj}_FILE_INCLUDED)
if(_is_included)
return()
endif()
# Set default for optional DEPENDS_VAR and EP_ARGS parameters
foreach(param DEPENDS EP_ARGS)
if(NOT _sb_${param}_VAR)
set(_sb_${param}_VAR ${_sb_proj}_${param})
#message("[${project_name}] Setting _sb_${param}_VAR with default value '${_sb_${param}_VAR}'")
endif()
endforeach()
# Set top level project
superbuild_stack_size(SB_PROJECT_STACK _stack_size)
if(_stack_size EQUAL 0)
set(SUPERBUILD_TOPLEVEL_PROJECT ${_sb_proj})
endif()
# Set default for optional USE_SYSTEM_VAR parameter
if(NOT _sb_USE_SYSTEM_VAR)
set(_sb_USE_SYSTEM_VAR ${SUPERBUILD_TOPLEVEL_PROJECT}_USE_SYSTEM_${_sb_proj})
#message("[${project_name}] Setting _sb_USE_SYSTEM_VAR with default value '${_sb_USE_SYSTEM_VAR}'")
endif()
# Set default for optional SUPERBUILD_VAR parameter
if(NOT _sb_SUPERBUILD_VAR)
set(_sb_SUPERBUILD_VAR ${SUPERBUILD_TOPLEVEL_PROJECT}_SUPERBUILD)
#message("[${project_name}] Setting _sb_SUPERBUILD_VAR with default value '${_sb_SUPERBUILD_VAR}'")
endif()
# Set default for optional CMAKE_GENERATOR_* parameters
foreach(varname IN ITEMS
"CMAKE_GENERATOR"
"CMAKE_GENERATOR_PLATFORM"
"CMAKE_GENERATOR_TOOLSET"
)
if(NOT _sb_${varname})
set(_sb_${varname} ${EP_${varname}})
#message("[${project_name}] Setting _sb_${varname} with default value '${_sb_${varname}}'")
else()
#message("[${project_name}] Setting _sb_${varname} to value '${_sb_${varname}}'")
endif()
endforeach()
# Keeping track of variable name independently of the recursion
if(NOT DEFINED _sb_SB_VAR)
set(_sb_SB_VAR ${_sb_SUPERBUILD_VAR})
#message("[${project_name}] Setting _sb_SB_VAR with default value '${_sb_SB_VAR}'")
endif()
# Try to detect if superbuild variable was improperly passed
if("${_sb_SB_VAR}" STREQUAL "_SUPERBUILD")
message(FATAL_ERROR "SUPERBUILD_VAR value is incorrectly set to '_SUPERBUILD'")
endif()
# Set local variables
set(_sb_DEPENDS ${${_sb_DEPENDS_VAR}})
set(_sb_USE_SYSTEM ${${_sb_USE_SYSTEM_VAR}})
_sb_update_indent(${_sb_proj})
# Keep track of the projects
list(APPEND SB_${SUPERBUILD_TOPLEVEL_PROJECT}_POSSIBLE_DEPENDS ${_sb_proj})
# Use system ?
get_property(_use_system_set GLOBAL PROPERTY SB_${_sb_proj}_USE_SYSTEM SET)
if(_use_system_set)
get_property(_sb_USE_SYSTEM GLOBAL PROPERTY SB_${_sb_proj}_USE_SYSTEM)
endif()
# Is this the first run ?
if(${_sb_proj} STREQUAL ${SUPERBUILD_TOPLEVEL_PROJECT} AND NOT DEFINED SB_FIRST_PASS)
message(STATUS "SuperBuild - First pass")
set(SB_FIRST_PASS TRUE)
endif()
# Extra dependencies specified using "ExternalProject_Add_Dependencies"
get_property(_sb_ADDITIONAL_DEPENDS GLOBAL PROPERTY SB_${_sb_proj}_ADDITIONAL_DEPENDS)
if(NOT "x${_sb_ADDITIONAL_DEPENDS}" STREQUAL "x")
list(APPEND _sb_DEPENDS ${_sb_ADDITIONAL_DEPENDS})
endif()
set(_sb_REQUIRED_DEPENDS)
foreach(dep ${_sb_DEPENDS})
if(NOT ${_sb_proj} STREQUAL ${SUPERBUILD_TOPLEVEL_PROJECT})
# Set "use system" variable if it has NOT already been explicitly set
get_property(_sb_${dep}_USE_SYSTEM_VAR GLOBAL PROPERTY SB_${dep}_USE_SYSTEM_VAR)
if(_sb_USE_SYSTEM AND NOT DEFINED ${_sb_${dep}_USE_SYSTEM_VAR})
set_property(GLOBAL PROPERTY SB_${dep}_USE_SYSTEM ${_sb_USE_SYSTEM})
#message(${_sb_proj} "Property SB_${dep}_USE_SYSTEM set to [${_sb_USE_SYSTEM_VAR}:${_sb_USE_SYSTEM}]")
endif()
endif()
_sb_is_optional(${dep} _optional)
set_property(GLOBAL PROPERTY SB_${dep}_OPTIONAL ${_optional})
#message(${_sb_proj} "[${_sb_proj}] Property SB_${dep}_OPTIONAL set to ${_optional}")
if(NOT _optional)
list(APPEND _sb_REQUIRED_DEPENDS ${dep})
endif()
endforeach()
# Display dependency of project being processed
if(_sb_REQUIRED_DEPENDS AND SB_SECOND_PASS AND ${_sb_SB_VAR})
set(dependency_str "")
foreach(dep ${_sb_REQUIRED_DEPENDS})
get_property(_is_included GLOBAL PROPERTY SB_${dep}_FILE_INCLUDED)
set(_include_status "")
if(_is_included)
set(_include_status "[INCLUDED]")
endif()
set(dependency_str "${dependency_str}${dep}${_include_status}, ")
endforeach()
ExternalProject_Message(${_sb_proj} "${_sb_proj} => Requires ${dependency_str}")
endif()
# Save variables
set_property(GLOBAL PROPERTY SB_${_sb_proj}_REQUIRED_DEPENDS ${_sb_REQUIRED_DEPENDS})
set_property(GLOBAL PROPERTY SB_${_sb_proj}_DEPENDS ${_sb_DEPENDS})
set_property(GLOBAL PROPERTY SB_${_sb_proj}_DEPENDS_VAR ${_sb_DEPENDS_VAR})
set_property(GLOBAL PROPERTY SB_${_sb_proj}_EP_ARGS_VAR ${_sb_EP_ARGS_VAR})
set_property(GLOBAL PROPERTY SB_${_sb_proj}_USE_SYSTEM ${_sb_USE_SYSTEM})
set_property(GLOBAL PROPERTY SB_${_sb_proj}_USE_SYSTEM_VAR ${_sb_USE_SYSTEM_VAR})
set_property(GLOBAL PROPERTY SB_${_sb_proj}_PROJECT_VAR ${_sb_PROJECT_VAR})
foreach(varname IN ITEMS
"CMAKE_GENERATOR"
"CMAKE_GENERATOR_PLATFORM"
"CMAKE_GENERATOR_TOOLSET"
)
set_property(GLOBAL PROPERTY SB_${_sb_proj}_${varname} ${_sb_${varname}})
endforeach()
superbuild_stack_push(SB_PROJECT_STACK ${_sb_proj})
# Include dependencies
foreach(dep ${_sb_DEPENDS})
get_property(_included GLOBAL PROPERTY SB_${dep}_FILE_INCLUDED)
if(NOT _included)
if(EXISTS "${EXTERNAL_PROJECT_DIR}/${EXTERNAL_PROJECT_FILE_PREFIX}${dep}.cmake")
include(${EXTERNAL_PROJECT_DIR}/${EXTERNAL_PROJECT_FILE_PREFIX}${dep}.cmake)
elseif(EXISTS "${${dep}_FILEPATH}")
# Originally implemented to support CTK buildsystem
include(${${dep}_FILEPATH})
elseif(EXISTS "${EXTERNAL_PROJECT_ADDITIONAL_DIR}/${EXTERNAL_PROJECT_FILE_PREFIX}${dep}.cmake")
include(${EXTERNAL_PROJECT_ADDITIONAL_DIR}/${EXTERNAL_PROJECT_FILE_PREFIX}${dep}.cmake)
else()
set(_found_ep_cmake FALSE)
foreach(_external_project_additional_dir ${EXTERNAL_PROJECT_ADDITIONAL_DIRS})
if(EXISTS "${_external_project_additional_dir}/${EXTERNAL_PROJECT_FILE_PREFIX}${dep}.cmake")
include(${_external_project_additional_dir}/${EXTERNAL_PROJECT_FILE_PREFIX}${dep}.cmake)
set(_found_ep_cmake TRUE)
break()
endif()
endforeach()
if(NOT _found_ep_cmake)
message(FATAL_ERROR "Can't find ${EXTERNAL_PROJECT_FILE_PREFIX}${dep}.cmake")
endif()
endif()
set_property(GLOBAL PROPERTY SB_${dep}_FILE_INCLUDED 1)
endif()
endforeach()
# Restore variables
superbuild_stack_pop(SB_PROJECT_STACK _sb_proj)
foreach(varname IN ITEMS
"CMAKE_GENERATOR"
"CMAKE_GENERATOR_PLATFORM"
"CMAKE_GENERATOR_TOOLSET"
)
get_property(_sb_${varname} GLOBAL PROPERTY SB_${_sb_proj}_${varname})
endforeach()
get_property(_sb_PROJECT_VAR GLOBAL PROPERTY SB_${_sb_proj}_PROJECT_VAR)
get_property(_sb_USE_SYSTEM_VAR GLOBAL PROPERTY SB_${_sb_proj}_USE_SYSTEM_VAR)
get_property(_sb_USE_SYSTEM GLOBAL PROPERTY SB_${_sb_proj}_USE_SYSTEM)
get_property(_sb_EP_ARGS_VAR GLOBAL PROPERTY SB_${_sb_proj}_EP_ARGS_VAR)
get_property(_sb_DEPENDS_VAR GLOBAL PROPERTY SB_${_sb_proj}_DEPENDS_VAR)
get_property(_sb_DEPENDS GLOBAL PROPERTY SB_${_sb_proj}_DEPENDS)
get_property(_sb_REQUIRED_DEPENDS GLOBAL PROPERTY SB_${_sb_proj}_REQUIRED_DEPENDS)
# Use system ?
set(_include_type "")
if(_sb_USE_SYSTEM)
set(_include_type " (SYSTEM)")
endif()
get_property(_optional GLOBAL PROPERTY SB_${_sb_proj}_OPTIONAL)
ExternalProject_Message(${_sb_proj} "${_sb_proj}[OK]${_include_type}" SB_SECOND_PASS AND ${_sb_SB_VAR} AND NOT _optional)
if(${_sb_proj} STREQUAL ${SUPERBUILD_TOPLEVEL_PROJECT} AND SB_FIRST_PASS)
set(SB_FIRST_PASS FALSE)
ExternalProject_Message(${_sb_proj} "First pass - done")
if(${_sb_SB_VAR})
foreach(possible_proj ${SB_${SUPERBUILD_TOPLEVEL_PROJECT}_POSSIBLE_DEPENDS})
get_property(_optional GLOBAL PROPERTY SB_${possible_proj}_OPTIONAL)
if(_optional)
ExternalProject_Message(${_sb_proj} "${possible_proj}[OPTIONAL]")
endif()
set_property(GLOBAL PROPERTY SB_${possible_proj}_FILE_INCLUDED 0)
endforeach()
set(${_sb_PROJECT_VAR} ${_sb_proj})
set(SB_SECOND_PASS TRUE)
set(_ep_include_deps_EXTRA_ARGS )
foreach(varname IN ITEMS
"CMAKE_GENERATOR"
"CMAKE_GENERATOR_PLATFORM"
"CMAKE_GENERATOR_TOOLSET"
)
list(APPEND _ep_include_deps_EXTRA_ARGS
${varname} ${_sb_${varname}}
)
endforeach()
ExternalProject_Include_Dependencies(${_sb_proj}
PROJECT_VAR ${_sb_PROJECT_VAR}
DEPENDS_VAR ${_sb_DEPENDS_VAR}
EP_ARGS_VAR ${_sb_EP_ARGS_VAR}
USE_SYSTEM_VAR _sb_USE_SYSTEM
SUPERBUILD_VAR ${_sb_SB_VAR}
${_ep_include_deps_EXTRA_ARGS}
)
set(SB_SECOND_PASS FALSE)
endif()
endif()
if(SB_FIRST_PASS OR _optional)
if(NOT ${_sb_proj} STREQUAL ${SUPERBUILD_TOPLEVEL_PROJECT})
return()
endif()
endif()
if(SB_SECOND_PASS)
_sb_get_external_project_arguments(${_sb_proj} ${_sb_EP_ARGS_VAR})
endif()
if(NOT SB_FIRST_PASS AND NOT SB_SECOND_PASS
AND ${_sb_proj} STREQUAL ${SUPERBUILD_TOPLEVEL_PROJECT})
#ExternalProject_Message(${_sb_proj} "Clean up")
unset(_sb_SB_VAR)
unset(SB_FIRST_PASS)
unset(SB_SECOND_PASS)
endif()
# Set public variables
set(${_sb_PROJECT_VAR} ${_sb_proj})
set(${_sb_DEPENDS_VAR} ${_sb_REQUIRED_DEPENDS})
set(${_sb_USE_SYSTEM_VAR} ${_sb_USE_SYSTEM})
#message("[${_sb_proj}] #################################")
#message("[${_sb_proj}] Setting ${_sb_PROJECT_VAR}:${_sb_proj}")