grpc-go/cmd/protoc-gen-go-grpc/main.go

69 строки
1.9 KiB
Go

/*
*
* Copyright 2020 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.
*
*/
// protoc-gen-go-grpc is a plugin for the Google protocol buffer compiler to
// generate Go code. Install it by building this program and making it
// accessible within your PATH with the name:
// protoc-gen-go-grpc
//
// The 'go-grpc' suffix becomes part of the argument for the protocol compiler,
// such that it can be invoked as:
// protoc --go-grpc_out=. path/to/file.proto
//
// This generates Go service definitions for the protocol buffer defined by
// file.proto. With that input, the output will be written to:
// path/to/file_grpc.pb.go
package main
import (
"flag"
"fmt"
"google.golang.org/protobuf/compiler/protogen"
"google.golang.org/protobuf/types/pluginpb"
)
const version = "1.1.0"
var requireUnimplemented *bool
func main() {
showVersion := flag.Bool("version", false, "print the version and exit")
flag.Parse()
if *showVersion {
fmt.Printf("protoc-gen-go-grpc %v\n", version)
return
}
var flags flag.FlagSet
requireUnimplemented = flags.Bool("require_unimplemented_servers", true, "set to false to match legacy behavior")
protogen.Options{
ParamFunc: flags.Set,
}.Run(func(gen *protogen.Plugin) error {
gen.SupportedFeatures = uint64(pluginpb.CodeGeneratorResponse_FEATURE_PROTO3_OPTIONAL)
for _, f := range gen.Files {
if !f.Generate {
continue
}
generateFile(gen, f)
}
return nil
})
}