244 lines
9.0 KiB
CMake
244 lines
9.0 KiB
CMake
if(GTWRAP_PYTHON_PACKAGE_DIR)
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# packaged
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set(GTWRAP_PACKAGE_DIR "${GTWRAP_PYTHON_PACKAGE_DIR}")
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else()
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set(GTWRAP_PACKAGE_DIR ${CMAKE_CURRENT_LIST_DIR}/..)
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endif()
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# Get the Python version
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include(GtwrapUtils)
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message(STATUS "Checking Python Version")
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gtwrap_get_python_version(${WRAP_PYTHON_VERSION})
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message(STATUS "Setting Python version for wrapper")
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set(PYBIND11_PYTHON_VERSION ${WRAP_PYTHON_VERSION})
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# User-friendly Pybind11 wrapping and installing function. Builds a Pybind11
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# module from the provided interface_headers. For example, for the interface
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# header gtsam.h, this will build the wrap module 'gtsam_py.cc'.
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#
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# Arguments:
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# ~~~
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# target: The Make target
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# interface_headers: List of paths to the wrapper interface definition files. The top level interface file should be first.
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# generated_cpp: The name of the cpp file which is generated from the tpl file.
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# module_name: The name of the Python module to use.
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# top_namespace: The C++ namespace under which the code to be wrapped exists.
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# ignore_classes: CMake list of classes to ignore from wrapping.
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# install_path: Destination to install the library.
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# module_template: The template file (.tpl) from which to generate the Pybind11 module.
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# libs: Libraries to link with.
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# dependencies: Dependencies which need to be built before the wrapper.
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# use_boost (optional): Flag indicating whether to include Boost.
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function(
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pybind_wrap
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target
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interface_headers
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generated_cpp
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module_name
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top_namespace
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ignore_classes
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module_template
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libs
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dependencies)
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set(ExtraMacroArgs ${ARGN})
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list(GET ExtraMacroArgs 0 USE_BOOST)
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if(USE_BOOST)
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set(_WRAP_BOOST_ARG "--use-boost")
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else(USE_BOOST)
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set(_WRAP_BOOST_ARG "")
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endif(USE_BOOST)
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if(UNIX)
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set(GTWRAP_PATH_SEPARATOR ":")
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else()
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set(GTWRAP_PATH_SEPARATOR ";")
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endif()
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# Create a copy of interface_headers so we can freely manipulate it
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set(interface_files ${interface_headers})
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# Pop the main interface file so that interface_files has only submodules.
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list(POP_FRONT interface_files main_interface)
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# Convert .i file names to .cpp file names.
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foreach(interface_file ${interface_files})
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# This block gets the interface file name and does the replacement
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get_filename_component(interface ${interface_file} NAME_WLE)
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set(cpp_file "${interface}.cpp")
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list(APPEND cpp_files ${cpp_file})
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# Wrap the specific interface header
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# This is done so that we can create CMake dependencies in such a way so that when changing a single .i file,
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# the others don't need to be regenerated.
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# NOTE: We have to use `add_custom_command` so set the dependencies correctly.
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# https://stackoverflow.com/questions/40032593/cmake-does-not-rebuild-dependent-after-prerequisite-changes
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add_custom_command(
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OUTPUT ${cpp_file}
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COMMAND
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${CMAKE_COMMAND} -E env
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"PYTHONPATH=${GTWRAP_PACKAGE_DIR}${GTWRAP_PATH_SEPARATOR}$ENV{PYTHONPATH}"
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${PYTHON_EXECUTABLE} ${PYBIND_WRAP_SCRIPT} --src "${interface_file}"
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--out "${cpp_file}" --module_name ${module_name}
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--top_module_namespaces "${top_namespace}" --ignore ${ignore_classes}
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--template ${module_template} --is_submodule ${_WRAP_BOOST_ARG}
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DEPENDS "${interface_file}" ${module_template} "${module_name}/specializations/${interface}.h" "${module_name}/preamble/${interface}.h"
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VERBATIM)
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endforeach()
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get_filename_component(main_interface_name ${main_interface} NAME_WLE)
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set(main_cpp_file "${main_interface_name}.cpp")
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list(PREPEND cpp_files ${main_cpp_file})
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add_custom_command(
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OUTPUT ${main_cpp_file}
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COMMAND
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${CMAKE_COMMAND} -E env
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"PYTHONPATH=${GTWRAP_PACKAGE_DIR}${GTWRAP_PATH_SEPARATOR}$ENV{PYTHONPATH}"
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${PYTHON_EXECUTABLE} ${PYBIND_WRAP_SCRIPT} --src "${interface_headers}"
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--out "${generated_cpp}" --module_name ${module_name}
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--top_module_namespaces "${top_namespace}" --ignore ${ignore_classes}
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--template ${module_template} ${_WRAP_BOOST_ARG}
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DEPENDS "${main_interface}" ${module_template} "${module_name}/specializations/${main_interface_name}.h" "${module_name}/specializations/${main_interface_name}.h"
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VERBATIM)
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add_custom_target(pybind_wrap_${module_name} DEPENDS ${cpp_files})
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pybind11_add_module(${target} "${cpp_files}")
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if(APPLE)
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# `type_info` objects will become "weak private external" if the templated
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# class is initialized implicitly even if we explicitly export them with
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# `WRAP_EXPORT`. If that happens, the `type_info` for the same templated
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# class will diverge between shared libraries, causing `dynamic_cast` to
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# fail. This is mitigated by telling Clang to mimic the MSVC behavior. See
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# https://developer.apple.com/library/archive/technotes/tn2185/_index.html#//apple_ref/doc/uid/DTS10004200-CH1-SUBSECTION2
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# https://github.com/CppMicroServices/CppMicroServices/pull/82/files
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# https://www.russellmcc.com/posts/2013-08-03-rtti.html
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target_compile_options(${target} PRIVATE "-fvisibility-ms-compat")
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endif()
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add_dependencies(${target} pybind_wrap_${module_name})
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if(NOT "${libs}" STREQUAL "")
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target_link_libraries(${target} PRIVATE "${libs}")
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endif()
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if(NOT "${dependencies}" STREQUAL "")
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add_dependencies(${target} ${dependencies})
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endif()
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endfunction()
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# Helper function to install python scripts and handle multiple build types
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# where the scripts should be installed to all build type toolboxes
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#
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# Arguments:
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# ~~~
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# source_directory: The source directory to be installed. "The last component
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# of each directory name is appended to the destination directory but a
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# trailing slash may be used to avoid this because it leaves the last
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# component empty."
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# (https://cmake.org/cmake/help/v3.3/command/install.html?highlight=install#installing-directories)
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# dest_directory: The destination directory to install to.
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# patterns: list of file patterns to install
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# ~~~
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function(install_python_scripts source_directory dest_directory patterns)
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set(patterns_args "")
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set(exclude_patterns "")
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foreach(pattern ${patterns})
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list(APPEND patterns_args PATTERN "${pattern}")
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endforeach()
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if(WRAP_BUILD_TYPE_POSTFIXES)
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foreach(build_type ${CMAKE_CONFIGURATION_TYPES})
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string(TOUPPER "${build_type}" build_type_upper)
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if(${build_type_upper} STREQUAL "RELEASE")
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set(build_type_tag "") # Don't create release mode tag on installed
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# directory
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else()
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set(build_type_tag "")
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endif()
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# Split up filename to strip trailing '/' in GTSAM_PY_INSTALL_PATH if
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# there is one
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get_filename_component(location "${dest_directory}" PATH)
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get_filename_component(name "${dest_directory}" NAME)
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install(
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DIRECTORY "${source_directory}"
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DESTINATION "${location}/${name}${build_type_tag}"
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CONFIGURATIONS "${build_type}"
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FILES_MATCHING ${patterns_args}
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PATTERN "${exclude_patterns}" EXCLUDE)
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endforeach()
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else()
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install(
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DIRECTORY "${source_directory}"
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DESTINATION "${dest_directory}"
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FILES_MATCHING ${patterns_args}
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PATTERN "${exclude_patterns}" EXCLUDE)
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endif()
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endfunction()
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# Helper function to install specific files and handle multiple build types
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# where the scripts should be installed to all build type toolboxes
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#
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# Arguments:
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# ~~~
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# source_files: The source files to be installed.
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# dest_directory: The destination directory to install to.
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function(install_python_files source_files dest_directory)
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if(WRAP_BUILD_TYPE_POSTFIXES)
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foreach(build_type ${CMAKE_CONFIGURATION_TYPES})
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string(TOUPPER "${build_type}" build_type_upper)
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set(build_type_tag "")
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# Split up filename to strip trailing '/' in WRAP_PY_INSTALL_PATH if there
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# is one
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get_filename_component(location "${dest_directory}" PATH)
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get_filename_component(name "${dest_directory}" NAME)
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install(
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FILES "${source_files}"
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DESTINATION "${location}/${name}${build_type_tag}"
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CONFIGURATIONS "${build_type}")
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endforeach()
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else()
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install(FILES "${source_files}" DESTINATION "${dest_directory}")
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endif()
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endfunction()
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# ~~~
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# Copy over the directory from source_folder to dest_foler
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# ~~~
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function(copy_directory source_folder dest_folder)
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if(${source_folder} STREQUAL ${dest_folder})
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return()
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endif()
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file(
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GLOB files
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LIST_DIRECTORIES true
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RELATIVE "${source_folder}"
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"${source_folder}/*")
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foreach(path_file ${files})
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get_filename_component(folder ${path_file} PATH)
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get_filename_component(ext ${path_file} EXT)
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set(ignored_ext ".tpl" ".h")
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list(FIND ignored_ext "${ext}" _index)
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if(${_index} GREATER -1)
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continue()
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endif()
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# Create REAL folder
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file(MAKE_DIRECTORY "${dest_folder}")
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# Delete if it exists
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file(REMOVE "${dest_folder}/${path_file}")
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# Get OS dependent path to use in copy
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file(TO_NATIVE_PATH "${source_folder}/${path_file}" target)
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file(COPY ${target} DESTINATION ${dest_folder})
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endforeach(path_file)
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endfunction(copy_directory)
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