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19a2cc5634
This lets us fail early at configure time if a suitable Python 3 interpreter is not present, instead of delaying the error until Ninja attempts to run `embed_as_string_view.py` to generate a header in the middle of the build. Refs #21791
93 lines
4.1 KiB
CMake
93 lines
4.1 KiB
CMake
#
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# Functions for generating sources using host tools
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#
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function(embed_as_string_view name source_file output source_variable_name)
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cmake_parse_arguments(PARSE_ARGV 4 EMBED_STRING_VIEW "" "NAMESPACE" "")
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set(namespace_arg "")
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if (EMBED_STRING_VIEW_NAMESPACE)
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set(namespace_arg "-s ${EMBED_STRING_VIEW_NAMESPACE}")
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endif()
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find_package(Python3 REQUIRED COMPONENTS Interpreter)
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add_custom_command(
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OUTPUT "${output}"
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COMMAND "${Python3_EXECUTABLE}" "${SerenityOS_SOURCE_DIR}/Meta/embed_as_string_view.py" "${source_file}" -o "${output}.tmp" -n "${source_variable_name}" ${namespace_arg}
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COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${output}.tmp" "${output}"
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COMMAND "${CMAKE_COMMAND}" -E remove "${output}.tmp"
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VERBATIM
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DEPENDS "${SerenityOS_SOURCE_DIR}/Meta/embed_as_string_view.py"
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MAIN_DEPENDENCY "${source_file}"
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)
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add_custom_target("generate_${name}" DEPENDS "${output}")
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add_dependencies(all_generated "generate_${name}")
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endfunction()
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function(stringify_gml source output string_name)
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set(source ${CMAKE_CURRENT_SOURCE_DIR}/${source})
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get_filename_component(output_name ${output} NAME)
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embed_as_string_view(${output_name} ${source} ${output} ${string_name})
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endfunction()
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function(compile_gml source output)
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set(source ${CMAKE_CURRENT_SOURCE_DIR}/${source})
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add_custom_command(
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OUTPUT ${output}
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COMMAND $<TARGET_FILE:Lagom::GMLCompiler> ${source} > ${output}.tmp
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COMMAND "${CMAKE_COMMAND}" -E copy_if_different ${output}.tmp ${output}
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COMMAND "${CMAKE_COMMAND}" -E remove ${output}.tmp
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VERBATIM
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DEPENDS Lagom::GMLCompiler
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MAIN_DEPENDENCY ${source}
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)
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get_filename_component(output_name ${output} NAME)
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add_custom_target(generate_${output_name} DEPENDS ${output})
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add_dependencies(all_generated generate_${output_name})
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endfunction()
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function(compile_ipc source output)
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if (NOT IS_ABSOLUTE ${source})
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set(source ${CMAKE_CURRENT_SOURCE_DIR}/${source})
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endif()
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add_custom_command(
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OUTPUT ${output}
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COMMAND $<TARGET_FILE:Lagom::IPCCompiler> ${source} -o ${output}.tmp
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COMMAND "${CMAKE_COMMAND}" -E copy_if_different ${output}.tmp ${output}
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COMMAND "${CMAKE_COMMAND}" -E remove ${output}.tmp
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VERBATIM
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DEPENDS Lagom::IPCCompiler
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MAIN_DEPENDENCY ${source}
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)
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get_filename_component(output_name ${output} NAME)
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add_custom_target(generate_${output_name} DEPENDS ${output})
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add_dependencies(all_generated generate_${output_name})
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# TODO: Use cmake_path() when we upgrade the minimum CMake version to 3.20
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# https://cmake.org/cmake/help/v3.23/command/cmake_path.html#relative-path
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string(LENGTH ${SerenityOS_SOURCE_DIR} root_source_dir_length)
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string(SUBSTRING ${CMAKE_CURRENT_SOURCE_DIR} ${root_source_dir_length} -1 current_source_dir_relative)
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${output} DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${current_source_dir_relative}" OPTIONAL)
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endfunction()
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function(generate_state_machine source header)
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get_filename_component(header_name ${header} NAME)
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set(target_name "generate_${header_name}")
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# Note: This function is called twice with the same header, once in the kernel
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# and once in Userland/LibVT, this check makes sure that only one target
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# is generated for that header.
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if(NOT TARGET ${target_name})
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set(source ${CMAKE_CURRENT_SOURCE_DIR}/${source})
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set(output ${CMAKE_CURRENT_BINARY_DIR}/${header})
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add_custom_command(
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OUTPUT ${output}
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COMMAND $<TARGET_FILE:Lagom::StateMachineGenerator> ${source} -o ${output}.tmp
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COMMAND "${CMAKE_COMMAND}" -E copy_if_different ${output}.tmp ${output}
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COMMAND "${CMAKE_COMMAND}" -E remove ${output}.tmp
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VERBATIM
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DEPENDS Lagom::StateMachineGenerator
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MAIN_DEPENDENCY ${source}
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)
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add_custom_target(${target_name} DEPENDS ${output})
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add_dependencies(all_generated ${target_name})
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endif()
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endfunction()
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