protobuf-go/cmd/protoc-gen-go/main.go
Damien Neil 1fa8ab0ed5 protogen: add an option to rewrite import paths
This allows us to implement the import_prefix parameter in the v1
protoc-gen-go.

Drop support for import_prefix in protogen, and explicitly produce an
error if it is used in the v2 protoc-gen-go.

Change-Id: I66136b6b3affa3c0e9a93dc565619c90c42c0ecc
Reviewed-on: https://go-review.googlesource.com/138257
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
2018-09-28 21:19:59 +00:00

44 lines
1.2 KiB
Go

// 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 a Go protocol
// buffer package.
package main
import (
"errors"
"flag"
gengo "github.com/golang/protobuf/v2/cmd/protoc-gen-go/internal_gengo"
"github.com/golang/protobuf/v2/protogen"
)
func main() {
var (
flags flag.FlagSet
plugins = flags.String("plugins", "", "deprecated option")
importPrefix = flags.String("import_prefix", "", "deprecated option")
opts = &protogen.Options{
ParamFunc: flags.Set,
}
)
protogen.Run(opts, 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")
}
if *importPrefix != "" {
return errors.New("protoc-gen-go: import_prefix is not supported")
}
for _, f := range gen.Files {
if !f.Generate {
continue
}
filename := f.GeneratedFilenamePrefix + ".pb.go"
g := gen.NewGeneratedFile(filename, f.GoImportPath)
gengo.GenerateFile(gen, f, g)
}
return nil
})
}