tools/build_rules/genproto.bzl

# Copyright 2014 The Bazel Authors. All rights reserved.
#
# 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.

# This is a quick and dirty rule to make Bazel compile itself.  It
# only supports Java.

proto_filetype = [".proto"]

def cc_grpc_library(name, src):
    basename = src[:-len(".proto")]
    protoc_label = str(Label("//third_party/protobuf:protoc"))
    cpp_plugin_label = str(Label("//third_party/grpc:cpp_plugin"))
    native.genrule(
        name = name + "_codegen",
        srcs = [src],
        tools = [protoc_label, cpp_plugin_label],
        cmd = "\\\n".join([
            "$(location " + protoc_label + ")",
            "    --plugin=protoc-gen-grpc=$(location " + cpp_plugin_label + ")",
            "    --cpp_out=$(GENDIR)",
            "    --grpc_out=$(GENDIR)",
            "    $(location " + src + ")",
        ]),
        outs = [basename + ".grpc.pb.h", basename + ".grpc.pb.cc", basename + ".pb.cc", basename + ".pb.h"],
    )

    native.cc_library(
        name = name,
        srcs = [basename + ".grpc.pb.cc", basename + ".pb.cc"],
        hdrs = [basename + ".grpc.pb.h", basename + ".pb.h"],
        deps = [str(Label("//third_party/grpc:grpc++_unsecure"))],
        includes = ["."],
    )