#

# Copyright 2018 gRPC authors.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#     http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#

HOST_SYSTEM = $(shell uname | cut -f 1 -d_)

SYSTEM ?= $(HOST_SYSTEM)

CXX = g++

CPPFLAGS += `pkg-config --cflags protobuf grpc` $(INC)

CXXFLAGS += -std=c++11

ifeq ($(SYSTEM),Darwin)

LDFLAGS +=  `pkg-config --libs protobuf grpc++ grpc`\

           -lgrpc++_reflection\

           -ldl

else

LDFLAGS +=  `pkg-config --libs protobuf grpc++ grpc`\

			-Wl,--no-as-needed -lgrpc++_reflection -Wl,--as-needed\

			-ldl

endif

PROTOC = protoc

GRPC_CPP_PLUGIN = grpc_cpp_plugin

GRPC_CPP_PLUGIN_PATH ?= `which $(GRPC_CPP_PLUGIN)`



PROTOS_PATH = ../proto



vpath %.proto $(PROTOS_PATH)



all: system-check test_client



test_client: errors.pb.o data_model.pb.o router_grpc.pb.o router_grpc.grpc.pb.o test_client.o

	$(CXX) $^ $(LDFLAGS) -o $@



.PRECIOUS: %.grpc.pb.cc

%.grpc.pb.cc: %.proto

	$(PROTOC) -I $(PROTOS_PATH) --grpc_out=. --plugin=protoc-gen-grpc=$(GRPC_CPP_PLUGIN_PATH) $<



.PRECIOUS: %.pb.cc

%.pb.cc: %.proto

	$(PROTOC) -I $(PROTOS_PATH) --cpp_out=. $<



clean:

	rm -f *.o *.pb.cc *.pb.h test_client





# The following is to test your system and ensure a smoother experience.

# They are by no means necessary to actually compile a grpc-enabled software.



PROTOC_CMD = which $(PROTOC)

PROTOC_CHECK_CMD = $(PROTOC) --version | grep -q libprotoc.3

PLUGIN_CHECK_CMD = which $(GRPC_CPP_PLUGIN)

HAS_PROTOC = $(shell $(PROTOC_CMD) > /dev/null && echo true || echo false)

ifeq ($(HAS_PROTOC),true)

HAS_VALID_PROTOC = $(shell $(PROTOC_CHECK_CMD) 2> /dev/null && echo true || echo false)

endif

HAS_PLUGIN = $(shell $(PLUGIN_CHECK_CMD) > /dev/null && echo true || echo false)



SYSTEM_OK = false

ifeq ($(HAS_VALID_PROTOC),true)

ifeq ($(HAS_PLUGIN),true)

SYSTEM_OK = true

endif

endif



system-check:

ifneq ($(HAS_VALID_PROTOC),true)

	@echo " DEPENDENCY ERROR"

	@echo

	@echo "You don't have protoc 3.0.0 installed in your path."

	@echo "Please install Google protocol buffers 3.0.0 and its compiler."

	@echo "You can find it here:"

	@echo

	@echo "   https://github.com/google/protobuf/releases/tag/v3.0.0"

	@echo

	@echo "Here is what I get when trying to evaluate your version of protoc:"

	@echo

	-$(PROTOC) --version

	@echo

	@echo

endif

ifneq ($(HAS_PLUGIN),true)

	@echo " DEPENDENCY ERROR"

	@echo

	@echo "You don't have the grpc c++ protobuf plugin installed in your path."

	@echo "Please install grpc. You can find it here:"

	@echo

	@echo "   https://github.com/grpc/grpc"

	@echo

	@echo "Here is what I get when trying to detect if you have the plugin:"

	@echo

	-which $(GRPC_CPP_PLUGIN)

	@echo

	@echo

endif

ifneq ($(SYSTEM_OK),true)

	@false

endif