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