225 lines
8.7 KiB
CMake
225 lines
8.7 KiB
CMake
function(protobuf_generate_modified)
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find_package(Protobuf REQUIRED)
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set(_options APPEND_PATH DESCRIPTORS)
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set(_singleargs LANGUAGE OUT_VAR EXPORT_MACRO PROTOC_OUT_DIR PLUGIN PROTOC_OPTION)
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if(COMMAND target_sources)
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list(APPEND _singleargs TARGET)
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endif()
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set(_multiargs PROTOS IMPORT_DIRS GENERATE_EXTENSIONS)
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cmake_parse_arguments(protobuf_generate "${_options}" "${_singleargs}" "${_multiargs}" "${ARGN}")
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if(NOT protobuf_generate_PROTOS AND NOT protobuf_generate_TARGET)
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message(SEND_ERROR "Error: protobuf_generate called without any targets or source files")
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return()
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endif()
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if(NOT protobuf_generate_OUT_VAR AND NOT protobuf_generate_TARGET)
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message(SEND_ERROR "Error: protobuf_generate called without a target or output variable")
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return()
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endif()
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if(NOT protobuf_generate_LANGUAGE)
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set(protobuf_generate_LANGUAGE struct_pb)
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endif()
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string(TOLOWER ${protobuf_generate_LANGUAGE} protobuf_generate_LANGUAGE)
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if(NOT protobuf_generate_PROTOC_OUT_DIR)
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set(protobuf_generate_PROTOC_OUT_DIR ${CMAKE_CURRENT_BINARY_DIR})
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endif()
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set(_opt)
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if(protobuf_generate_PROTOC_OPTION)
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set(_opt "${protobuf_generate_PROTOC_OPTION}")
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endif()
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if(protobuf_generate_EXPORT_MACRO AND protobuf_generate_LANGUAGE STREQUAL cpp)
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set(_opt "${opt},dllexport_decl=${protobuf_generate_EXPORT_MACRO}")
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endif()
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set(_opt "${_opt}:")
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if(protobuf_generate_PLUGIN)
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set(_plugin "--plugin=${protobuf_generate_PLUGIN}")
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endif()
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if(NOT protobuf_generate_GENERATE_EXTENSIONS)
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if(protobuf_generate_LANGUAGE STREQUAL cpp)
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set(protobuf_generate_GENERATE_EXTENSIONS .pb.h .pb.cc)
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elseif(protobuf_generate_LANGUAGE STREQUAL python)
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set(protobuf_generate_GENERATE_EXTENSIONS _pb2.py)
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elseif(protobuf_generate_LANGUAGE STREQUAL struct_pb)
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set(protobuf_generate_GENERATE_EXTENSIONS .struct_pb.h .struct_pb.cc)
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else()
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message(SEND_ERROR "Error: protobuf_generate given unknown Language ${LANGUAGE}, please provide a value for GENERATE_EXTENSIONS")
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return()
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endif()
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endif()
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if(protobuf_generate_TARGET)
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get_target_property(_source_list ${protobuf_generate_TARGET} SOURCES)
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foreach(_file ${_source_list})
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if(_file MATCHES "proto$")
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list(APPEND protobuf_generate_PROTOS ${_file})
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endif()
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endforeach()
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endif()
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if(NOT protobuf_generate_PROTOS)
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message(SEND_ERROR "Error: protobuf_generate could not find any .proto files")
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return()
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endif()
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if(protobuf_generate_APPEND_PATH)
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# Create an include path for each file specified
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foreach(_file ${protobuf_generate_PROTOS})
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get_filename_component(_abs_file ${_file} ABSOLUTE)
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get_filename_component(_abs_path ${_abs_file} PATH)
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list(FIND _protobuf_include_path ${_abs_path} _contains_already)
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if(${_contains_already} EQUAL -1)
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list(APPEND _protobuf_include_path -I ${_abs_path})
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endif()
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endforeach()
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else()
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set(_protobuf_include_path -I ${CMAKE_CURRENT_SOURCE_DIR})
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endif()
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foreach(DIR ${protobuf_generate_IMPORT_DIRS})
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get_filename_component(ABS_PATH ${DIR} ABSOLUTE)
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list(FIND _protobuf_include_path ${ABS_PATH} _contains_already)
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if(${_contains_already} EQUAL -1)
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list(APPEND _protobuf_include_path -I ${ABS_PATH})
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endif()
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endforeach()
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set(_generated_srcs_all)
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foreach(_proto ${protobuf_generate_PROTOS})
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get_filename_component(_abs_file ${_proto} ABSOLUTE)
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get_filename_component(_abs_dir ${_abs_file} DIRECTORY)
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get_filename_component(_basename ${_proto} NAME_WLE)
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file(RELATIVE_PATH _rel_dir ${CMAKE_CURRENT_SOURCE_DIR} ${_abs_dir})
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set(_possible_rel_dir)
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if (NOT protobuf_generate_APPEND_PATH)
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set(_possible_rel_dir ${_rel_dir}/)
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endif()
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set(_generated_srcs)
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foreach(_ext ${protobuf_generate_GENERATE_EXTENSIONS})
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list(APPEND _generated_srcs "${protobuf_generate_PROTOC_OUT_DIR}/${_possible_rel_dir}${_basename}${_ext}")
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endforeach()
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if(protobuf_generate_DESCRIPTORS AND protobuf_generate_LANGUAGE STREQUAL cpp)
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set(_descriptor_file "${CMAKE_CURRENT_BINARY_DIR}/${_basename}.desc")
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set(_dll_desc_out "--descriptor_set_out=${_descriptor_file}")
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list(APPEND _generated_srcs ${_descriptor_file})
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endif()
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list(APPEND _generated_srcs_all ${_generated_srcs})
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add_custom_command(
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OUTPUT ${_generated_srcs}
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COMMAND protobuf::protoc
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ARGS --${protobuf_generate_LANGUAGE}_out ${_opt}${protobuf_generate_PROTOC_OUT_DIR} ${_plugin} ${_dll_desc_out} ${_protobuf_include_path} ${_abs_file}
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DEPENDS ${_abs_file} protobuf::protoc
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COMMENT "Running ${protobuf_generate_LANGUAGE} protocol buffer compiler on ${_proto}"
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VERBATIM )
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endforeach()
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set_source_files_properties(${_generated_srcs_all} PROPERTIES GENERATED TRUE)
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if(protobuf_generate_OUT_VAR)
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set(${protobuf_generate_OUT_VAR} ${_generated_srcs_all} PARENT_SCOPE)
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endif()
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if(protobuf_generate_TARGET)
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target_sources(${protobuf_generate_TARGET} PRIVATE ${_generated_srcs_all})
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target_include_directories(${protobuf_generate_TARGET} PUBLIC ${protobuf_generate_PROTOC_OUT_DIR})
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endif()
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endfunction()
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function(protobuf_generate_struct_pb SRCS HDRS)
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cmake_parse_arguments(protobuf_generate_struct_pb "" "EXPORT_MACRO;DESCRIPTORS;OPTION" "" ${ARGN})
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set(_proto_files "${protobuf_generate_struct_pb_UNPARSED_ARGUMENTS}")
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if(NOT _proto_files)
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message(SEND_ERROR "Error: PROTOBUF_GENERATE_STRUCT_PB() called without any proto files")
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return()
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endif()
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if(PROTOBUF_GENERATE_STRUCT_PB_APPEND_PATH)
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set(_append_arg APPEND_PATH)
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endif()
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if(protobuf_generate_struct_pb_DESCRIPTORS)
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set(_descriptors DESCRIPTORS)
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endif()
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if(protobuf_generate_struct_pb_OPTION)
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set(_opt ${protobuf_generate_struct_pb_OPTION})
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endif()
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if(DEFINED PROTOBUF_IMPORT_DIRS AND NOT DEFINED Protobuf_IMPORT_DIRS)
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set(Protobuf_IMPORT_DIRS "${PROTOBUF_IMPORT_DIRS}")
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endif()
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if(DEFINED Protobuf_IMPORT_DIRS)
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set(_import_arg IMPORT_DIRS ${Protobuf_IMPORT_DIRS})
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endif()
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set(_outvar)
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protobuf_generate_modified(${_append_arg} ${_descriptors}
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LANGUAGE struct_pb EXPORT_MACRO ${protobuf_generate_struct_pb_EXPORT_MACRO}
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PLUGIN $<TARGET_FILE:protoc-gen-struct_pb>
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OUT_VAR _outvar ${_import_arg} PROTOS ${_proto_files}
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PROTOC_OPTION ${_opt}
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)
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set(${SRCS})
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set(${HDRS})
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if(protobuf_generate_struct_pb_DESCRIPTORS)
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set(${protobuf_generate_struct_pb_DESCRIPTORS})
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endif()
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foreach(_file ${_outvar})
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if(_file MATCHES "cc$")
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list(APPEND ${SRCS} ${_file})
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elseif(_file MATCHES "desc$")
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list(APPEND ${protobuf_generate_struct_pb_DESCRIPTORS} ${_file})
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else()
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list(APPEND ${HDRS} ${_file})
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endif()
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endforeach()
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set(${SRCS} ${${SRCS}} PARENT_SCOPE)
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set(${HDRS} ${${HDRS}} PARENT_SCOPE)
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if(protobuf_generate_struct_pb_DESCRIPTORS)
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set(${protobuf_generate_struct_pb_DESCRIPTORS} "${${protobuf_generate_struct_pb_DESCRIPTORS}}" PARENT_SCOPE)
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endif()
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endfunction()
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function(target_protos_struct_pb target)
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set(_options APPEND_PATH DESCRIPTORS)
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set(_singleargs LANGUAGE EXPORT_MACRO PROTOC_OUT_DIR PLUGIN OPTION)
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set(_multiargs IMPORT_DIRS PRIVATE PUBLIC)
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cmake_parse_arguments(target_protos_struct_pb "${_options}" "${_singleargs}" "${_multiargs}" "${ARGN}")
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set(_proto_files "${target_protos_struct_pb_PRIVATE}" "${target_protos_struct_pb_PUBLIC}")
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if (NOT _proto_files)
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message(SEND_ERROR "Error: TARGET_PROTOS_STRUCT_PB() called without any proto files")
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return()
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endif ()
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if (DEFINED PROTOBUF_IMPORT_DIRS AND NOT DEFINED Protobuf_IMPORT_DIRS)
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set(Protobuf_IMPORT_DIRS "${PROTOBUF_IMPORT_DIRS}")
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endif ()
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if (DEFINED Protobuf_IMPORT_DIRS)
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set(_import_arg IMPORT_DIRS ${Protobuf_IMPORT_DIRS})
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endif ()
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if (target_protos_struct_pb_OPTION)
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set(_opt ${target_protos_struct_pb_OPTION})
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endif ()
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protobuf_generate_modified(
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TARGET ${target}
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LANGUAGE struct_pb EXPORT_MACRO ${target_protos_struct_pb_EXPORT_MACRO}
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PLUGIN $<TARGET_FILE:protoc-gen-struct_pb>
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${_import_arg} PROTOS ${_proto_files}
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PROTOC_OPTION ${_opt}
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)
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endfunction()
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