58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// The protoc-gen-go binary is a protoc plugin to generate Go code for
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// both proto2 and proto3 versions of the protocol buffer language.
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//
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// For more information about the usage of this plugin, see:
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//
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// https://developers.google.com/protocol-buffers/docs/reference/go-generated
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package main
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import (
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"errors"
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"flag"
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"fmt"
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"os"
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"path/filepath"
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gengo "google.golang.org/protobuf/cmd/protoc-gen-go/internal_gengo"
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"google.golang.org/protobuf/compiler/protogen"
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"google.golang.org/protobuf/internal/version"
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)
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const genGoDocURL = "https://developers.google.com/protocol-buffers/docs/reference/go-generated"
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const grpcDocURL = "https://grpc.io/docs/languages/go/quickstart/#regenerate-grpc-code"
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func main() {
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if len(os.Args) == 2 && os.Args[1] == "--version" {
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fmt.Fprintf(os.Stdout, "%v %v\n", filepath.Base(os.Args[0]), version.String())
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os.Exit(0)
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}
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if len(os.Args) == 2 && os.Args[1] == "--help" {
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fmt.Fprintf(os.Stdout, "See "+genGoDocURL+" for usage information.\n")
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os.Exit(0)
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}
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var (
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flags flag.FlagSet
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plugins = flags.String("plugins", "", "deprecated option")
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)
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protogen.Options{
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ParamFunc: flags.Set,
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}.Run(func(gen *protogen.Plugin) error {
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if *plugins != "" {
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return errors.New("protoc-gen-go: plugins are not supported; use 'protoc --go-grpc_out=...' to generate gRPC\n\n" +
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"See " + grpcDocURL + " for more information.")
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}
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for _, f := range gen.Files {
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if f.Generate {
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gengo.GenerateFile(gen, f)
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}
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}
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gen.SupportedFeatures = gengo.SupportedFeatures
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return nil
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})
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}
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