ParaViewOptions.cmake

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#========================================================================
# BUILD OPTIONS:
# Options that affect the ParaView build, in general.
# These should begin with `PARAVIEW_BUILD_`.
#========================================================================

vtk_deprecated_setting(shared_default PARAVIEW_BUILD_SHARED_LIBS BUILD_SHARED_LIBS "ON")
option(PARAVIEW_BUILD_SHARED_LIBS "Build ParaView with shared libraries" "${shared_default}")

vtk_deprecated_setting(legacy_remove_default PARAVIEW_BUILD_LEGACY_REMOVE VTK_LEGACY_REMOVE "OFF")
option(PARAVIEW_BUILD_LEGACY_REMOVE "Remove all legacy code completely" "${legacy_remove_default}")
mark_as_advanced(PARAVIEW_BUILD_LEGACY_REMOVE)

vtk_deprecated_setting(legacy_silent_default PARAVIEW_BUILD_LEGACY_SILENT VTK_LEGACY_SILENT "OFF")
option(PARAVIEW_BUILD_LEGACY_SILENT "Silence all legacy code messages" "${legacy_silent_default}")
mark_as_advanced(PARAVIEW_BUILD_LEGACY_SILENT)

# Kits bundle multiple modules together into a single library, this
# is used to dramatically reduce the number of generated libraries.
vtk_deprecated_setting(kits_default PARAVIEW_BUILD_WITH_KITS PARAVIEW_ENABLE_KITS "OFF")
cmake_dependent_option(PARAVIEW_BUILD_WITH_KITS "Build ParaView using kits instead of modules." OFF
  # Static builds don't make sense with kits. Ignore the flag if shared
  # libraries aren't being built.
  "PARAVIEW_BUILD_SHARED_LIBS" OFF)
mark_as_advanced(PARAVIEW_BUILD_WITH_KITS)

vtk_deprecated_setting(external_default PARAVIEW_BUILD_WITH_EXTERNAL PARAVIEW_USE_EXTERNAL "OFF")
option(PARAVIEW_BUILD_WITH_EXTERNAL "Use external copies of third party libraries by default" OFF)
mark_as_advanced(PARAVIEW_BUILD_WITH_EXTERNAL)

option(PARAVIEW_BUILD_ALL_MODULES "Build all modules by default" OFF)
mark_as_advanced(PARAVIEW_BUILD_ALL_MODULES)
set(_vtk_module_reason_WANT_BY_DEFAULT
  "via `PARAVIEW_BUILD_ALL_MODULES`")

vtk_deprecated_setting(examples_default PARAVIEW_ENABLE_EXAMPLES PARAVIEW_BUILD_EXAMPLES "OFF")
option(PARAVIEW_ENABLE_EXAMPLES "Enable ParaView examples" "${examples_default}")
set(PARAVIEW_BUILD_TESTING "OFF"
  CACHE STRING "Enable testing")
set_property(CACHE PARAVIEW_BUILD_TESTING
  PROPERTY
    STRINGS "ON;OFF;WANT;DEFAULT")

cmake_dependent_option(PARAVIEW_BUILD_VTK_TESTING "Enable VTK testing" OFF
  "PARAVIEW_BUILD_TESTING" OFF)
option(PARAVIEW_BUILD_DEVELOPER_DOCUMENTATION "Generate ParaView C++/Python docs" "${doc_default}")

option(PARAVIEW_PLUGIN_DISABLE_XML_DOCUMENTATION "Forcefully disable XML documentation generation" OFF)
mark_as_advanced(PARAVIEW_PLUGIN_DISABLE_XML_DOCUMENTATION)

set(PARAVIEW_BUILD_EDITION "CANONICAL"
  CACHE STRING "Enable ParaView components essential for requested capabilities.")
set_property(CACHE PARAVIEW_BUILD_EDITION
  PROPERTY
    STRINGS "CORE;RENDERING;CATALYST;CATALYST_RENDERING;CANONICAL")

cmake_dependent_option(PARAVIEW_BUILD_EDITION_STRICT
  "Restrict VTK modules to those strictly needed by the PARAVIEW_BUILD_EDITION" ON
  "NOT PARAVIEW_USE_EXTERNAL_VTK" OFF)

set(PARAVIEW_BUILD_CANONICAL OFF)
set(PARAVIEW_ENABLE_RENDERING OFF)
set(PARAVIEW_ENABLE_NONESSENTIAL OFF)
if (PARAVIEW_BUILD_EDITION STREQUAL "CORE")
  # all are OFF.
elseif (PARAVIEW_BUILD_EDITION STREQUAL "RENDERING")
  set(PARAVIEW_ENABLE_RENDERING ON)
elseif (PARAVIEW_BUILD_EDITION STREQUAL "CATALYST")
  set(PARAVIEW_BUILD_CANONICAL ON)
elseif (PARAVIEW_BUILD_EDITION STREQUAL "CATALYST_RENDERING")
  set(PARAVIEW_ENABLE_RENDERING ON)
  set(PARAVIEW_BUILD_CANONICAL ON)
elseif (PARAVIEW_BUILD_EDITION STREQUAL "CANONICAL")
  set(PARAVIEW_ENABLE_RENDERING ON)
  set(PARAVIEW_BUILD_CANONICAL ON)
  set(PARAVIEW_ENABLE_NONESSENTIAL ON)
endif()

# We want to warn users if PARAVIEW_BUILD_EDITION is changed after first configure since the default
# state of various other settings may not be what user expects.
if (DEFINED _paraview_build_edition_cached AND
    NOT _paraview_build_edition_cached STREQUAL PARAVIEW_BUILD_EDITION)
  message(WARNING
    "Changing `PARAVIEW_BUILD_EDITION` after first configure will not setup "
    "defaults for others settings correctly e.g. plugins enabled. It is "
    "recommended that you start with a clean build directory and pass the "
    "option to CMake using "
    "'-DPARAVIEW_BUILD_EDITION:STRING=${PARAVIEW_BUILD_EDITION}'.")
endif()
set(_paraview_build_edition_cached "${PARAVIEW_BUILD_EDITION}" CACHE INTERNAL "")

set(VTK_GROUP_ENABLE_PARAVIEW_CORE "YES" CACHE INTERNAL "")
if (PARAVIEW_BUILD_CANONICAL)
  set(VTK_GROUP_ENABLE_PARAVIEW_CANONICAL "YES" CACHE INTERNAL "")
else()
  set(VTK_GROUP_ENABLE_PARAVIEW_CANONICAL "NO" CACHE INTERNAL "")
endif()

#========================================================================
# CAPABILITY OPTIONS:
# Options that affect the build capabilities.
# These should begin with `PARAVIEW_USE_`.
#========================================================================

option(PARAVIEW_USE_MPI "Enable MPI support for parallel computing" OFF)
option(PARAVIEW_SERIAL_TESTS_USE_MPIEXEC
  "Used on HPC to run serial tests on compute nodes" OFF)
mark_as_advanced(PARAVIEW_SERIAL_TESTS_USE_MPIEXEC)
option(PARAVIEW_USE_CUDA "Support CUDA compilation" OFF)

vtk_deprecated_setting(default_use_viskores PARAVIEW_USE_VISKORES PARAVIEW_USE_VTKM "${PARAVIEW_ENABLE_NONESSENTIAL}")
option(PARAVIEW_USE_VISKORES "Enable Viskores accelerated algorithms" "${default_use_viskores}")

if (UNIX AND NOT APPLE)
  option(PARAVIEW_USE_MEMKIND  "Build support for extended memory" OFF)
endif ()

# Add option to disable Fortran
if (NOT WIN32)
  include(CheckFortran)
  check_fortran_support()
  if (CMAKE_Fortran_COMPILER)
    set(_has_fortran TRUE)
  else()
    set(_has_fortran FALSE)
  endif()
  cmake_dependent_option(PARAVIEW_USE_FORTRAN "Enable Fortran support" ON
    "_has_fortran" OFF)
  mark_as_advanced(PARAVIEW_USE_FORTRAN)
  unset(_has_fortran)
endif()

vtk_deprecated_setting(python_default PARAVIEW_USE_PYTHON PARAVIEW_ENABLE_PYTHON OFF)
option(PARAVIEW_USE_PYTHON "Enable/Disable Python scripting support" "${python_default}")

option(PARAVIEW_USE_SERIALIZATION "Enable/Disable Serialization support" OFF)

# Currently, we're making `PARAVIEW_USE_QT` available only when doing CANONICAL
# builds with RENDERING. This is technically not necessary so we can support that
# use-case if needed in future but will require some work to make sure the Qt components
# work correctly with missing proxies.
vtk_deprecated_setting(qt_gui_default PARAVIEW_USE_QT PARAVIEW_BUILD_QT_GUI "ON")
cmake_dependent_option(PARAVIEW_USE_QT
  "Enable Qt-support needed for graphical UI" "${qt_gui_default}"
  "PARAVIEW_BUILD_CANONICAL;PARAVIEW_ENABLE_RENDERING;PARAVIEW_ENABLE_NONESSENTIAL" OFF)

# Add an option to enable using Qt WebEngine for widgets, as needed.
# Default is OFF. We don't want to depend on WebEngine unless absolutely needed.
cmake_dependent_option(PARAVIEW_USE_QTWEBENGINE
  "Use Qt WebEngine components as needed." OFF
  "PARAVIEW_USE_QT" OFF)
mark_as_advanced(PARAVIEW_USE_QTWEBENGINE)

# Add an option to enable using Qt Help, as needed.
# Default is ON to enable integrated help/documentation.
cmake_dependent_option(PARAVIEW_USE_QTHELP
  "Use Qt Help infrastructure as needed." ON
  "PARAVIEW_USE_QT" OFF)
mark_as_advanced(PARAVIEW_USE_QTHELP)

if (PARAVIEW_USE_QTHELP AND NOT PARAVIEW_USE_QTWEBENGINE)
  message(STATUS "Using 'QtHelp' without 'QtWebEngine' will ignore embedded javascript and *.js files for documentation")
endif()

if (PARAVIEW_ENABLE_RAYTRACING AND VTK_ENABLE_OSPRAY)
  set(paraview_use_materialeditor ON)
else ()
  set(paraview_use_materialeditor OFF)
endif ()

#========================================================================
# FEATURE OPTIONS:
# Options that toggle features. These should begin with `PARAVIEW_ENABLE_`.
#========================================================================

option(PARAVIEW_ENABLE_ANARI "Enable Anari Support" OFF)

vtk_deprecated_setting(raytracing_default PARAVIEW_ENABLE_RAYTRACING PARAVIEW_USE_RAYTRACING "OFF")
option(PARAVIEW_ENABLE_RAYTRACING "Build ParaView with OSPray and/or OptiX ray-tracing support" ${raytracing_default})

if (PARAVIEW_ENABLE_RAYTRACING AND NOT VTK_ENABLE_OSPRAY AND NOT VTK_ENABLE_VISRTX)
  message(WARNING "Ray Tracing module is activated without any ray tracing implementation.
  Please activate either VTK_ENABLE_OSPRAY and/or VTK_ENABLE_VISRTX in order to provide a raytracing implementation for ParaView.")
endif ()

set(paraview_web_default ON)
if (PARAVIEW_USE_PYTHON AND WIN32)
  include(ParaViewFindPythonModules)
  find_python_module(win32api have_pywin32)
  set(paraview_web_default "${have_pywin32}")
endif ()

if (NOT PARAVIEW_BUILD_EDITION STREQUAL "CANONICAL")
  set(paraview_web_default OFF)
endif()
cmake_dependent_option(PARAVIEW_ENABLE_WEB "Enable/Disable web support" "${paraview_web_default}"
  "PARAVIEW_USE_PYTHON" OFF)

# NvPipe requires an NVIDIA GPU.
option(PARAVIEW_ENABLE_NVPIPE "Build ParaView with NvPipe remoting. Requires CUDA and an NVIDIA GPU" OFF)
if (PARAVIEW_ENABLE_NVPIPE)
  message(DEPRECATION
    "NvPipe is not longer supported. See "
    "https://gitlab.kitware.com/paraview/paraview/-/issues/23231 for progress")
  set(PARAVIEW_ENABLE_NVPIPE OFF)
endif ()

option(PARAVIEW_ENABLE_OPENVDB  "Enable the OpenVDB Writer" OFF)

option(PARAVIEW_ENABLE_NANOVDB "Enable the NanoVDB Writer" OFF)

option(PARAVIEW_ENABLE_ALEMBIC "Enable Alembic support." OFF)

option(PARAVIEW_ENABLE_GDAL "Enable GDAL support." OFF)

option(PARAVIEW_ENABLE_LAS "Enable LAS support." OFF)

option(PARAVIEW_ENABLE_OPENTURNS "Enable OpenTURNS support." OFF)

option(PARAVIEW_ENABLE_PDAL "Enable PDAL support." OFF)

option(PARAVIEW_ENABLE_MOTIONFX "Enable MotionFX support." OFF)

option(PARAVIEW_ENABLE_MOMENTINVARIANTS "Enable MomentInvariants filters" OFF)

option(PARAVIEW_ENABLE_LOOKINGGLASS "Enable LookingGlass displays" OFF)

option(PARAVIEW_ENABLE_VISITBRIDGE "Enable VisIt readers." OFF)

option(PARAVIEW_ENABLE_CATALYST "Enable ParaViewCatalyst implementation" OFF)

# default to ON for CANONICAL builds, else OFF.
set(xdmf2_default OFF)
if (PARAVIEW_BUILD_CANONICAL AND PARAVIEW_ENABLE_NONESSENTIAL)
  set(xdmf2_default ON)
endif()
option(PARAVIEW_ENABLE_XDMF2 "Enable Xdmf2 support." "${xdmf2_default}")

option(PARAVIEW_ENABLE_XDMF3 "Enable Xdmf3 support." OFF)

option(PARAVIEW_ENABLE_ADIOS2 "Enable ADIOS 2.x support." OFF)

option(PARAVIEW_ENABLE_FIDES "Enable Fides support." OFF)

option(PARAVIEW_ENABLE_FFMPEG "Enable FFMPEG Support." OFF)

option(PARAVIEW_ENABLE_OCCT "Enable OCCT Support." OFF)

option(PARAVIEW_ENABLE_IFC "Enable IFC Support." OFF)

option(PARAVIEW_BUILD_TRANSLATIONS "Generate translation files" OFF)
if (PARAVIEW_BUILD_TRANSLATIONS)
  set(PARAVIEW_TRANSLATIONS_DIRECTORY "${CMAKE_BINARY_DIR}/Translations" CACHE STRING
    "The directory containing translation files")
endif()

# If building on Unix with MPI enabled, we will present another option to
# enable building of CosmoTools VTK extensions. This option is by default
# OFF and set to OFF if ParaView is not built with MPI.
cmake_dependent_option(PARAVIEW_ENABLE_COSMOTOOLS
  "Build ParaView with CosmoTools VTK Extensions" OFF
  "UNIX;PARAVIEW_USE_MPI" OFF)

# PARAVIEW_ENABLE_CGNS_* option is only shown when PARAVIEW_ENABLE_NONESSENTIAL is
# OFF and then it defaults to OFF. If PARAVIEW_ENABLE_NONESSENTIAL is ON, then
# PARAVIEW_ENABLE_CGNS_* is set to ON as well and presented to the user at all.
cmake_dependent_option(PARAVIEW_ENABLE_CGNS_READER
  "Enable CGNS Reader Support" OFF
  "NOT PARAVIEW_ENABLE_NONESSENTIAL" ON)
cmake_dependent_option(PARAVIEW_ENABLE_CGNS_WRITER
  "Enable CGNS Reader Support" OFF
  "NOT PARAVIEW_ENABLE_NONESSENTIAL" ON)

#========================================================================
# MISCELLANEOUS OPTIONS:
# Options that are hard to classify. Keep this list minimal.
# These should be advanced by default.
#========================================================================
option(PARAVIEW_INSTALL_DEVELOPMENT_FILES "Install development files to the install tree" ON)
mark_as_advanced(PARAVIEW_INSTALL_DEVELOPMENT_FILES)

option(PARAVIEW_RELOCATABLE_INSTALL "Do not embed hard-coded paths into the install" ON)
mark_as_advanced(PARAVIEW_RELOCATABLE_INSTALL)

option(PARAVIEW_GENERATE_SPDX  "Generate SPDX file for each module." OFF)
mark_as_advanced(PARAVIEW_GENERATE_SPDX)

cmake_dependent_option(PARAVIEW_INITIALIZE_MPI_ON_CLIENT
  "Initialize MPI on client-processes by default. Can be overridden using command line arguments" ON
  "PARAVIEW_USE_MPI" OFF)
mark_as_advanced(PARAVIEW_INITIALIZE_MPI_ON_CLIENT)

set(PARAVIEW_LOGGING_TIME_PRECISION "3"
  CACHE STRING "Precision of loguru scope timers. 3=ms, 6=us, 9=ns")
mark_as_advanced(PARAVIEW_LOGGING_TIME_PRECISION)
set(known_logging_precisions 3 6 9)
set_property(CACHE PARAVIEW_LOGGING_TIME_PRECISION
  PROPERTY
    STRINGS ${known_logging_precisions})
if (NOT PARAVIEW_LOGGING_TIME_PRECISION IN_LIST known_logging_precisions)
  string(REPLACE ";" ", " known_logging_precisions_list "${known_logging_precisions}")
  message(FATAL_ERROR
    "`PARAVIEW_LOGGING_TIME_PRECISION` must be one of "
    "${known_logging_precisions_list}; given '${PARAVIEW_LOGGING_TIME_PRECISION}'")
endif ()

#========================================================================
# OBSOLETE OPTIONS: mark obsolete settings
#========================================================================
vtk_obsolete_setting(PARAVIEW_ENABLE_LOGGING)
vtk_obsolete_setting(PARAVIEW_ENABLE_QT_SUPPORT)
vtk_obsolete_setting(PARAVIEW_ENABLE_COMMANDLINE_TOOLS)
vtk_obsolete_setting(PARAVIEW_FREEZE_PYTHON)
vtk_obsolete_setting(PARAVIEW_USE_MPI_SSEND)
vtk_obsolete_setting(PARAVIEW_USE_ICE_T)

#========================================================================================
# Build up list of required and rejected modules
#========================================================================================
set(paraview_requested_modules)
set(paraview_rejected_modules)

#[==[
Conditionally require/reject optional modules

Use this macro to conditionally require (or reject) modules.

~~~
paraview_require_module(
  MODULES             <module>...
  [CONDITION          <condition>]
  [EXCLUSIVE]
~~~

The arguments are as follows:

  * `MODULES`: (Required) The list of modules.
  * `CONDITION`: (Defaults to `TRUE`) The condition under which the modules
    specified are added to the requested list.
  * `EXCLUSIVE`: When sepcified, if `CONDITION` is false, the module will be
    added to the rejected modules list.
#]==]
macro (paraview_require_module)
  cmake_parse_arguments(pem
    "EXCLUSIVE"
    ""
    "CONDITION;MODULES"
    ${ARGN})

  if (pem_UNPARSED_ARGUMENTS)
    message(FATAL_ERROR
      "Unparsed arguments for `paraview_require_module`: "
      "${pem_UNPARSED_ARGUMENTS}")
  endif ()

  if (NOT DEFINED pem_CONDITION)
    set(pem_CONDITION TRUE)
  endif ()

  if (${pem_CONDITION})
    # message("${pem_CONDITION} == TRUE")
    list(APPEND paraview_requested_modules ${pem_MODULES})
    foreach (_pem_module IN LISTS _pem_MODULES)
      set("_vtk_module_reason_${_pem_module}"
        "via `${pem_CONDITION}`")
    endforeach ()
  elseif (pem_EXCLUSIVE)
    # message("${pem_CONDITION} == FALSE")
    list(APPEND paraview_rejected_modules ${pem_MODULES})
    foreach (_pem_module IN LISTS _pem_MODULES)
      set("_vtk_module_reason_${_pem_module}"
        "via `${pem_CONDITION}`")
    endforeach ()
  endif()

  unset(pem_EXCLUSIVE)
  unset(pem_CONDITION)
  unset(pem_MODULES)
  unset(pem_UNPARSED_ARGUMENTS)
  unset(_pem_module)
endmacro()

# ensures that VTK::mpi module is rejected when MPI is not enabled.
paraview_require_module(
  CONDITION PARAVIEW_USE_MPI
  MODULES   VTK::ParallelMPI
            VTK::mpi
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_USE_MPI AND PARAVIEW_ENABLE_RENDERING
  MODULES   VTK::RenderingParallelLIC
  EXCLUSIVE)

# ensures VTK::Python module is rejected when Python is not enabled.
paraview_require_module(
  CONDITION PARAVIEW_USE_PYTHON
  MODULES   VTK::Python
            VTK::PythonInterpreter
            ParaView::PythonInterpreterPath
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_USE_PYTHON AND PARAVIEW_ENABLE_RENDERING AND PARAVIEW_BUILD_CANONICAL
  MODULES   VTK::RenderingMatplotlib)

paraview_require_module(
  CONDITION PARAVIEW_USE_VISKORES
  MODULES   VTK::AcceleratorsVTKmFilters
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_RAYTRACING AND PARAVIEW_ENABLE_RENDERING
  MODULES   VTK::RenderingRayTracing
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_RENDERING AND PARAVIEW_ENABLE_ANARI
  MODULES   VTK::RenderingAnari
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_RAYTRACING AND VTK_ENABLE_OSPRAY
  MODULES   ParaView::VTKExtensionsShaderBall
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_NVPIPE
  MODULES   ParaView::nvpipe
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_ALEMBIC
  MODULES   VTK::IOAlembic
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_GDAL
  MODULES   VTK::IOGDAL
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_LAS
  MODULES   VTK::IOLAS
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_OPENTURNS
  MODULES   VTK::FiltersOpenTURNS
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_PDAL
  MODULES   VTK::IOPDAL
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_MOTIONFX
  MODULES   VTK::IOMotionFX
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_MOMENTINVARIANTS
  MODULES   VTK::MomentInvariants
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_MOMENTINVARIANTS AND PARAVIEW_USE_MPI
  MODULES   VTK::ParallelMomentInvariants
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_LOOKINGGLASS
  MODULES   VTK::RenderingLookingGlass
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_VISITBRIDGE
  MODULES   ParaView::IOVisItBridge
            ParaView::VisItLib
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_XDMF2
  MODULES   VTK::IOXdmf2
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_XDMF3
  MODULES   VTK::IOXdmf3
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_ADIOS2
  MODULES   VTK::IOADIOS2
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_FIDES
  MODULES   VTK::IOFides
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_OPENVDB
  MODULES   VTK::IOOpenVDB
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_NANOVDB
  MODULES   VTK::IONanoVDB
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_FFMPEG
  MODULES   VTK::IOFFMPEG
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_CGNS_READER
  MODULES   VTK::IOCGNSReader
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_CGNS_WRITER
  MODULES   ParaView::VTKExtensionsIOCGNSWriter
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_CGNS_WRITER AND PARAVIEW_USE_MPI
  MODULES   ParaView::VTKExtensionsIOParallelCGNSWriter
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_WEB AND PARAVIEW_USE_PYTHON
  MODULES   VTK::WebCore
            VTK::WebPython
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_USE_SERIALIZATION
  MODULES   VTK::SerializationManager
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_OCCT
  MODULES   VTK::IOOCCT
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_IFC
  MODULES   VTK::IOIFC
  EXCLUSIVE)

paraview_require_module(
  CONDITION PARAVIEW_BUILD_CANONICAL
  MODULES ParaView::VTKExtensionsFiltersGeneral
          VTK::DomainsChemistry
          VTK::FiltersAMR
          VTK::FiltersCellGrid
          VTK::FiltersCore
          VTK::FiltersExtraction
          VTK::FiltersFlowPaths
          VTK::FiltersGeneral
          VTK::FiltersGeneric
          VTK::FiltersGeometry
          VTK::FiltersHybrid
          VTK::FiltersHyperTree
          VTK::FiltersModeling
          VTK::FiltersParallel
          VTK::FiltersParallelDIY2
          VTK::FiltersParallelVerdict
          VTK::FiltersSources
          VTK::FiltersStatistics
          VTK::FiltersTemporal
          VTK::FiltersTensor
          VTK::FiltersTexture
          VTK::FiltersVerdict
          VTK::ImagingCore
          VTK::ImagingFourier
          VTK::ImagingGeneral
          VTK::ImagingHybrid
          VTK::ImagingSources
          VTK::IOAsynchronous # needed for cinema
          VTK::IOChemistry
          VTK::IOGeometry
          VTK::IOImage
          VTK::IOInfovis
          VTK::IOLegacy
          VTK::IOParallel
          VTK::IOParallelXML
          VTK::IOPLY
          VTK::IOVPIC
          VTK::IOXML)

paraview_require_module(
  CONDITION PARAVIEW_BUILD_CANONICAL AND PARAVIEW_ENABLE_NONESSENTIAL
  MODULES   VTK::IOAMR
            VTK::IOAvmesh
            VTK::IOCellGrid
            VTK::IOCityGML
            VTK::IOCONVERGECFD
            VTK::IOERF
            VTK::IOFDS
            VTK::IOIOSS
            VTK::IOLANLX3D
            VTK::IOH5part
            VTK::IOH5Rage
            VTK::IONetCDF
            VTK::IOOggTheora
            VTK::IOOMF
            VTK::IOParallelExodus
            VTK::IOParallelLSDyna
            VTK::IOHDF
            VTK::IOSegY
            VTK::IOTRUCHAS
            VTK::IOVeraOut
            VTK::IOTecplotTable
            VTK::IOFLUENTCFF)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_RENDERING AND PARAVIEW_BUILD_CANONICAL
  MODULES   VTK::FiltersTexture
            VTK::RenderingCellGrid
            VTK::RenderingFreeType
)

paraview_require_module(
  CONDITION PARAVIEW_USE_MPI AND PARAVIEW_USE_PYTHON
  MODULES   VTK::ParallelMPI4Py)

paraview_require_module(
  CONDITION PARAVIEW_USE_MPI AND PARAVIEW_BUILD_CANONICAL
  MODULES   VTK::FiltersParallelFlowPaths
            VTK::FiltersParallelGeometry
            VTK::FiltersParallelMPI
            VTK::IOMPIImage)

paraview_require_module(
  CONDITION PARAVIEW_USE_MPI AND PARAVIEW_BUILD_CANONICAL AND PARAVIEW_ENABLE_NONESSENTIAL
  MODULES   VTK::IOParallelNetCDF
            VTK::IOPIO)

paraview_require_module(
  CONDITION PARAVIEW_BUILD_CANONICAL AND PARAVIEW_ENABLE_RENDERING AND PARAVIEW_ENABLE_NONESSENTIAL
  MODULES   ParaView::RemotingMisc
            ParaView::RemotingExport
            ParaView::RemotingLive
            ParaView::RemotingAnimation)

# Legacy Catalyst Python modules depends on paraview.tpl.cinema_python
paraview_require_module(
  CONDITION PARAVIEW_USE_PYTHON
  MODULES   ParaView::CinemaPython)

paraview_require_module(
  CONDITION PARAVIEW_ENABLE_CATALYST
  MODULES   VTK::IOCatalystConduit
  EXCLUSIVE)

if (NOT PARAVIEW_ENABLE_NONESSENTIAL)
  # This ensures that we don't ever enable certain problematic
  # modules when PARAVIEW_ENABLE_NONESSENTIAL is OFF.
  set(nonessential_modules
    VTK::netcdf
    VTK::ogg
    VTK::theora
    VTK::xdmf2
    VTK::xdmf3)

  # PARAVIEW_ENABLE_CGNS_* are the only options that can force the need for cgns
  # TPL when PARAVIEW_ENABLE_NONESSENTIAL is true.
  if (NOT PARAVIEW_ENABLE_CGNS_READER AND NOT PARAVIEW_ENABLE_CGNS_WRITER)
    list(APPEND nonessential_modules
      VTK::cgns)

    # if testing is enabled, this is expected to have hdf5 TPL
    # as VTK::IOHDF is a dependency of vtkTestingCore. But usual features should not
    # depends on it.
    if (PARAVIEW_BUILD_TESTING STREQUAL "OFF")
      list(APPEND nonessential_modules
        VTK::hdf5)
    endif()
  endif()

  if (PARAVIEW_BUILD_EDITION_STRICT)
    # Reject non-essential modules if in strict mode
    list(APPEND paraview_rejected_modules
      ${nonessential_modules})
  endif ()
  foreach (nonessential_module IN LISTS nonessential_modules)
    set("_vtk_module_reason_${nonessential_module}"
      "via `PARAVIEW_ENABLE_NONESSENTIAL` (via `PARAVIEW_BUILD_EDITION=${PARAVIEW_BUILD_EDITION}`)")
  endforeach ()

  function (_paraview_io_option_conflict option name)
    set(_error_level FATAL_ERROR)
    if (NOT PARAVIEW_BUILD_EDITION_STRICT)
      # Demote fatal error to debug for diagnostic purposes only.
      set(_error_level DEBUG)
    endif ()
    if (${option})
      message(${_error_level}
        "ParaView is configured without I/O support (via the "
        "${PARAVIEW_BUILD_EDITION} edition) which is incompatible with the "
        "request for ${name} support (via the `${option}` configure option)")
    endif ()
  endfunction ()

  _paraview_io_option_conflict(PARAVIEW_ENABLE_ADIOS2 "ADIOS 2.x")
  _paraview_io_option_conflict(PARAVIEW_ENABLE_ALEMBIC Alembic)
  _paraview_io_option_conflict(PARAVIEW_ENABLE_FFMPEG FFmpeg)
  _paraview_io_option_conflict(PARAVIEW_ENABLE_FIDES Fides)
  _paraview_io_option_conflict(PARAVIEW_ENABLE_GDAL GDAL)
  _paraview_io_option_conflict(PARAVIEW_ENABLE_LAS LAS)
  _paraview_io_option_conflict(PARAVIEW_ENABLE_MOTIONFX MotionFX)
  _paraview_io_option_conflict(PARAVIEW_ENABLE_OPENTURNS OpenTURNS)
  _paraview_io_option_conflict(PARAVIEW_ENABLE_PDAL PDAL)
  _paraview_io_option_conflict(PARAVIEW_ENABLE_VISITBRIDGE VisItBridge)
  _paraview_io_option_conflict(PARAVIEW_ENABLE_XDMF2 xdmf2)
  _paraview_io_option_conflict(PARAVIEW_ENABLE_XDMF3 xdmf3)
endif()

if (NOT PARAVIEW_ENABLE_RENDERING)
  # This ensures that we don't ever enable OpenGL
  # modules when PARAVIEW_ENABLE_RENDERING is OFF.
  set(rendering_modules
    VTK::glad)
  if (PARAVIEW_BUILD_EDITION_STRICT)
    # Reject rendering modules if in strict mode
    list(APPEND paraview_rejected_modules
      ${rendering_modules})
  endif ()
  foreach (rendering_module IN LISTS rendering_modules)
    set("_vtk_module_reason_${rendering_module}"
      "via `PARAVIEW_ENABLE_RENDERING` (via `PARAVIEW_BUILD_EDITION=${PARAVIEW_BUILD_EDITION}`)")
  endforeach ()

  function (_paraview_rendering_option_conflict option name)
    set(_error_level FATAL_ERROR)
    if (NOT PARAVIEW_BUILD_EDITION_STRICT)
      # Demote fatal error to debug for diagnostic purposes only.
      set(_error_level DEBUG)
    endif ()
    if (${option})
      message(${_error_level}
        "ParaView is configured without Rendering support (via the "
        "${PARAVIEW_BUILD_EDITION} edition) which is incompatible with the "
        "request for ${name} support (via the `${option}` configure option)")
    endif ()
  endfunction ()

  _paraview_rendering_option_conflict(PARAVIEW_ENABLE_RAYTRACING raytracing)
  _paraview_rendering_option_conflict(PARAVIEW_USE_QT Qt)
endif()

if (paraview_requested_modules)
  list(REMOVE_DUPLICATES paraview_requested_modules)
endif ()

if (paraview_rejected_modules)
  list(REMOVE_DUPLICATES paraview_rejected_modules)
endif()