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77 lines
3.0 KiB
77 lines
3.0 KiB
#
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# Locate and configure the gRPC library
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#
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# Adds the following targets:
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#
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# gRPC::grpc - gRPC library
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# gRPC::grpc++ - gRPC C++ library
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# gRPC::grpc++_reflection - gRPC C++ reflection library
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# gRPC::grpc_cpp_plugin - C++ generator plugin for Protocol Buffers
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#
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# Generates C++ sources from the .proto files
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#
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# grpc_generate_cpp (<SLIB> <HDRS> <DEST> [<ARGN>...])
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# PLIB - Proto Static Library generated by .proto file
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# HDRS - variable to define with autogenerated source files and header files
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# DEST - directory where the source files will be created
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# ARGN - .proto files
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function(GRPC_GENERATE_CPP PLIB HDRS DEST)
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add_custom_command(
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OUTPUT ${DEST}/${HDRS}.pb.cc
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${DEST}/${HDRS}.pb.h
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${DEST}/${HDRS}.grpc.pb.cc
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${DEST}/${HDRS}.grpc.pb.h
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COMMAND ${GRPC_BINARY_DIR}/protoc
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ARGS --grpc_out "${DEST}"
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--cpp_out "${DEST}"
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-I "${DEST}"
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--plugin=protoc-gen-grpc=${GRPC_BINARY_DIR}/grpc_cpp_plugin
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${ARGN})
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add_library(${PLIB}
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${DEST}/${HDRS}.pb.cc
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${DEST}/${HDRS}.pb.h
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${DEST}/${HDRS}.grpc.pb.cc
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${DEST}/${HDRS}.grpc.pb.h)
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set_target_properties(${PLIB} PROPERTIES
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ARCHIVE_OUTPUT_DIRECTORY ${DEST})
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target_link_libraries(${PLIB}
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${GRPC_CLIENT_LIBS})
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if (EXISTS ${DEST}/${PLIB})
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message("${BoldGreen} Added ${PLIB} files at ${DEST} successfully!${ColourReset}")
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else ()
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message(FATAL_ERROR "Add ${PLIB} code failed!")
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endif ()
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endfunction()
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if(NOT DEFINED GRPC_ROOT)
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message(FATAL_ERROR "GRPC_ROOT not set in FindgRPC.cmake")
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else()
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set(CMAKE_CXX_STANDARD 14)
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set(protobuf_MODULE_COMPATIBLE TRUE)
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list(APPEND CMAKE_PREFIX_PATH "${GRPC_ROOT}/lib/cmake/protobuf/")
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find_package(Protobuf CONFIG REQUIRED)
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message("${BoldGreen}Using protobuf ${Protobuf_VERSION}${ColourReset}")
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list(APPEND CMAKE_PREFIX_PATH "${GRPC_ROOT}/lib/cmake/absl/")
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find_package(absl CONFIG REQUIRED)
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message("${BoldGreen}Using absl-cpp ${absl_VERSION}${ColourReset}")
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list(APPEND CMAKE_PREFIX_PATH "${GRPC_ROOT}/lib/cmake/grpc/")
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find_package(gRPC CONFIG REQUIRED)
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message("${BoldGreen}Using gRPC-cpp ${gRPC_VERSION}${ColourReset}")
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find_path(GRPC_BINARY_DIR grpc_cpp_plugin ${GRPC_ROOT}/bin)
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find_path(GRPC_LIBRARY_DIR cmake/grpc/gRPCConfig.cmake ${GRPC_ROOT}/lib)
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find_path(GRPC_INCLUDE_DIR grpc/grpc.h PATHS ${_GRPC_INCLUDE_DIR} )
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mark_as_advanced(
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GRPC_BINARY_DIR
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GRPC_LIBRARY_DIR
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GRPC_INCLUDE_DIR
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)
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message("${BoldGreen}GRPC_INCLUDE_DIR is ${GRPC_INCLUDE_DIR}${ColourReset}")
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endif ()
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find_program(PROTOBUF_PROTOC protoc)
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find_program(GRPC_CPP_PLUGIN_EXECUTABLE grpc_cpp_plugin)
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set(REFLECTION gRPC::grpc++_reflection)
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set(GRPC_GRPCPP gRPC::grpc++)
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include(${CMAKE_ROOT}/Modules/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(gRPC DEFAULT_MSG
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PROTOBUF_PROTOC REFLECTION GRPC_GRPCPP GRPC_CPP_PLUGIN_EXECUTABLE)
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