CMakeLists.txt

cmake_minimum_required(VERSION 3.8)

project(HelloWorld C CXX)

include(../cmake/common.cmake)

# Proto file
get_filename_component(hw_proto "bookstore.proto" ABSOLUTE)
get_filename_component(hw_proto_path "${hw_proto}" PATH)

# Generated sources
set(hw_proto_srcs "${CMAKE_CURRENT_BINARY_DIR}/bookstore.pb.cc")
set(hw_proto_hdrs "${CMAKE_CURRENT_BINARY_DIR}/bookstore.pb.h")
set(hw_grpc_srcs "${CMAKE_CURRENT_BINARY_DIR}/bookstore.grpc.pb.cc")
set(hw_grpc_hdrs "${CMAKE_CURRENT_BINARY_DIR}/bookstore.grpc.pb.h")

add_custom_command(
        OUTPUT "${hw_proto_srcs}" "${hw_proto_hdrs}" "${hw_grpc_srcs}" "${hw_grpc_hdrs}"
        COMMAND ${_PROTOBUF_PROTOC}
        ARGS --grpc_out "${CMAKE_CURRENT_BINARY_DIR}"
        --cpp_out "${CMAKE_CURRENT_BINARY_DIR}"
        -I "${hw_proto_path}"
        --plugin=protoc-gen-grpc="${_GRPC_CPP_PLUGIN_EXECUTABLE}"
        "${hw_proto}"
        DEPENDS "${hw_proto}")

# Include generated *.pb.h files
include_directories("${CMAKE_CURRENT_BINARY_DIR}")

# hw_grpc_proto
add_library(hw_grpc_proto
        ${hw_grpc_srcs}
        ${hw_grpc_hdrs}
        ${hw_proto_srcs}
        ${hw_proto_hdrs})
target_link_libraries(hw_grpc_proto
        ${_REFLECTION}
        ${_GRPC_GRPCPP}
        ${_PROTOBUF_LIBPROTOBUF})

# Targets greeter_[async_](client|server)
foreach(_target
        server)
  add_executable(${_target} "${_target}.cc")
  target_link_libraries(${_target}
          hw_grpc_proto
          absl::flags
          absl::flags_parse
          ${_REFLECTION}
          ${_GRPC_GRPCPP}
          ${_PROTOBUF_LIBPROTOBUF})
endforeach()