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98 lines
3.9 KiB
98 lines
3.9 KiB
9 months ago
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# Transitively list all link libraries of a target (recursive call)
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function(igl_get_dependencies_recursive OUTPUT_VARIABLE TARGET)
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get_target_property(_aliased ${TARGET} ALIASED_TARGET)
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if(_aliased)
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set(TARGET ${_aliased})
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endif()
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get_target_property(_IMPORTED ${TARGET} IMPORTED)
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get_target_property(_TYPE ${TARGET} TYPE)
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if(_IMPORTED OR (${_TYPE} STREQUAL "INTERFACE_LIBRARY"))
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get_target_property(TARGET_DEPENDENCIES ${TARGET} INTERFACE_LINK_LIBRARIES)
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else()
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get_target_property(TARGET_DEPENDENCIES ${TARGET} LINK_LIBRARIES)
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endif()
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# MKL-specific list of runtime dependencies
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get_property(RUNTIME_DEPENDENCIES TARGET ${TARGET} PROPERTY mkl_RUNTIME_DEPENDENCIES)
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if(RUNTIME_DEPENDENCIES)
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list(APPEND TARGET_DEPENDENCIES ${RUNTIME_DEPENDENCIES})
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endif()
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set(VISITED_TARGETS ${${OUTPUT_VARIABLE}})
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foreach(DEPENDENCY IN ITEMS ${TARGET_DEPENDENCIES})
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if(TARGET ${DEPENDENCY})
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get_target_property(_aliased ${DEPENDENCY} ALIASED_TARGET)
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if(_aliased)
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set(DEPENDENCY ${_aliased})
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endif()
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if(NOT (DEPENDENCY IN_LIST VISITED_TARGETS))
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list(APPEND VISITED_TARGETS ${DEPENDENCY})
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igl_get_dependencies_recursive(VISITED_TARGETS ${DEPENDENCY})
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endif()
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endif()
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endforeach()
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set(${OUTPUT_VARIABLE} ${VISITED_TARGETS} PARENT_SCOPE)
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endfunction()
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# Transitively list all link libraries of a target
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function(igl_get_dependencies OUTPUT_VARIABLE TARGET)
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set(DISCOVERED_TARGETS "")
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igl_get_dependencies_recursive(DISCOVERED_TARGETS ${TARGET})
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set(${OUTPUT_VARIABLE} ${DISCOVERED_TARGETS} PARENT_SCOPE)
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endfunction()
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# Copy .dll dependencies to a target executable's folder. This function must be called *after* all the CMake
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# dependencies of the executable target have been defined, otherwise some .dlls might not be copied to the target
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# folder.
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function(igl_copy_dll target)
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if(NOT WIN32)
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return()
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endif()
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# Sanity checks
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get_target_property(TYPE ${target} TYPE)
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if(NOT ${TYPE} STREQUAL "EXECUTABLE")
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message(FATAL_ERROR "igl_copy_dll() was called on a non-executable target: ${target}")
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endif()
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# Create a custom command to do the actual copy. This needs to be executed before Catch2's POST_BUILD command,
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# so we define this as a PRE_LINK command for the executable target.
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add_custom_command(
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TARGET ${target}
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PRE_LINK
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COMMAND ${CMAKE_COMMAND} -E touch "${CMAKE_BINARY_DIR}/runtime_deps/copy_dll_${target}_$<CONFIG>.cmake"
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COMMAND ${CMAKE_COMMAND} -P "${CMAKE_BINARY_DIR}/runtime_deps/copy_dll_${target}_$<CONFIG>.cmake"
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COMMENT "Copying dlls for target ${target}"
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)
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# Retrieve all target dependencies
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igl_get_dependencies(TARGET_DEPENDENCIES ${target})
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# Iterate over dependencies, and create a copy rule for each .dll that we find
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set(COPY_SCRIPT_CONTENT "")
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foreach(DEPENDENCY IN ITEMS ${TARGET_DEPENDENCIES})
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get_target_property(TYPE ${DEPENDENCY} TYPE)
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if(NOT (${TYPE} STREQUAL "SHARED_LIBRARY" OR ${TYPE} STREQUAL "MODULE_LIBRARY"))
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continue()
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endif()
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# Instruction to copy target file if it exists
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string(APPEND COPY_SCRIPT_CONTENT
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"if(EXISTS \"$<TARGET_FILE:${DEPENDENCY}>\")\n "
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"execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different "
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"\"$<TARGET_FILE:${DEPENDENCY}>\" "
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"\"$<TARGET_FILE_DIR:${target}>/$<TARGET_FILE_NAME:${DEPENDENCY}>\")\n"
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"endif()\n"
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)
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endforeach()
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# Finally generate one script for each configuration supported by this generator
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message(STATUS "Populating copy rules for target: ${target}")
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file(GENERATE
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OUTPUT ${CMAKE_BINARY_DIR}/runtime_deps/copy_dll_${target}_$<CONFIG>.cmake
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CONTENT "${COPY_SCRIPT_CONTENT}"
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)
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endfunction()
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