libtorch-runtime/cmake-linux/grpc.cmake

# On how to build grpc, you may refer to https://github.com/grpc/grpc
set(grpc_build_dir "${LIB_BASE_DIR}/grpc-build")

if(NOT EXISTS ${grpc_build_dir})
    # install grpc
    execute_process(COMMAND mkdir -p ${grpc_build_dir})
    message(STATUS "${BoldGreen}Install grpc third party library")
    execute_process(
            COMMAND cmake
            -DgRPC_INSTALL=ON
            -DCMAKE_BUILD_TYPE=Release
            -DgRPC_PROTOBUF_PROVIDER=package
            -DgRPC_CARES_PROVIDER=package
            -DgRPC_ABSL_PROVIDER=package
            -DgRPC_RE2_PROVIDER=package
            -DgRPC_SSL_PROVIDER=package
            -DgRPC_ZLIB_PROVIDER=package
            -DgRPC_BUILD_TESTS=OFF
            -DCMAKE_INSTALL_PREFIX=${grpc_build_dir}
            -S ${LIB_BASE_DIR}/grpc-src
            -B ${grpc_build_dir}
            WORKING_DIRECTORY ${grpc_build_dir})
    execute_process(
            COMMAND cmake --build . -j4
            WORKING_DIRECTORY ${grpc_build_dir})
    execute_process(
            COMMAND cmake --install . -j6
            WORKING_DIRECTORY ${grpc_build_dir})
    execute_process(
            COMMAND cp -rf ${LIB_BASE_DIR}/grpc-src/third_party/abseil-cpp/absl ${grpc_build_dir}/include)
    message("${BoldGreen}GRPC Installed !${ColourReset}")
endif()

set(CMAKE_PREFIX_PATH ${grpc_build_dir}
        ${grpc_build_dir}/lib/cmake/protobuf
        ${grpc_build_dir}/lib/cmake/grpc
        ${CMAKE_PREFIX_PATH})

find_package(Threads REQUIRED)
find_package(protobuf CONFIG REQUIRED)
find_package(gRPC CONFIG REQUIRED)

include_directories(${grpc_build_dir}/include)
link_directories(${grpc_build_dir}/lib)
# local proto file
set(PROTO_DIR "${CMAKE_CURRENT_SOURCE_DIR}/bin_grpc")
set(grpc_BINARY_DIR "${grpc_build_dir}/bin")

message(${BoldGreen}
        protoc：${protobuf_BINARY_DIR}/protoc \n
        grpc_cpp_plugin：${grpc_BINARY_DIR}/grpc_cpp_plugin\n
        helloworld：${PROTO_DIR}/helloworld.proto${ColourReset})

list(APPEND third_party_libraries grpc++ grpc++_reflection libprotobuf)