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18 changes: 14 additions & 4 deletions cmake/morpheus_utils/python/python_module_tools.cmake
Original file line number Diff line number Diff line change
Expand Up @@ -613,22 +613,32 @@ macro(__create_python_library MODULE_NAME)
# succeed
add_dependencies(${PYTHON_ACTIVE_PACKAGE_NAME}-modules ${TARGET_NAME})

if(_ARGS_BUILD_STUBS)
if(_ARGS_BUILD_STUBS AND NOT _ARGS_IS_CYTHON)
# Get the relative path from the project source to the module root
cmake_path(RELATIVE_PATH _ARGS_MODULE_ROOT BASE_DIRECTORY ${PROJECT_SOURCE_DIR} OUTPUT_VARIABLE module_root_relative)

cmake_path(APPEND PROJECT_BINARY_DIR ${module_root_relative} OUTPUT_VARIABLE module_root_binary_dir)
cmake_path(APPEND module_root_binary_dir ${SOURCE_RELATIVE_PATH} ${MODULE_NAME} "__init__.pyi" OUTPUT_VARIABLE module_binary_stub_file)
cmake_path(APPEND module_root_binary_dir ${SOURCE_RELATIVE_PATH} "stubs" OUTPUT_VARIABLE module_binary_stub_temp_dir)
cmake_path(APPEND module_binary_stub_temp_dir ${SOURCE_RELATIVE_PATH} "${MODULE_NAME}.pyi" OUTPUT_VARIABLE module_binary_stub_temp_file)
cmake_path(APPEND module_root_binary_dir ${SOURCE_RELATIVE_PATH} "${MODULE_NAME}" "__init__.pyi" OUTPUT_VARIABLE module_binary_stub_file)

# Before installing, create the custom command to generate the stubs
add_custom_command(
OUTPUT ${module_binary_stub_file}
COMMAND ${Python3_EXECUTABLE} -m pybind11_stubgen ${TARGET_NAME} --no-setup-py --log-level WARN -o ./ --root-module-suffix \"\"
OUTPUT ${module_binary_stub_temp_file}
COMMAND
${Python3_EXECUTABLE} -m pybind11_stubgen --print-safe-value-reprs='.*' --ignore-invalid-identifiers '.*' ${TARGET_NAME} -o ${module_binary_stub_temp_dir}
DEPENDS ${PYTHON_ACTIVE_PACKAGE_NAME}-modules $<TARGET_OBJECTS:${TARGET_NAME}>
COMMENT "Building stub for python module ${TARGET_NAME}..."
WORKING_DIRECTORY ${module_root_binary_dir}
)

add_custom_command(
OUTPUT ${module_binary_stub_file}
COMMAND ${CMAKE_COMMAND} -E copy ${module_binary_stub_temp_file} ${module_binary_stub_file}
DEPENDS ${module_binary_stub_temp_file}
COMMENT "Moving target ${module_binary_stub_temp_file} to ${module_binary_stub_file}"
)

# Add a custom target to ensure the stub generation runs
add_custom_target(${TARGET_NAME}-stubs ALL
DEPENDS ${module_binary_stub_file}
Expand Down