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19058431cd
Create a single binary for handling generation of protos. This replaces previous logic spread throughout the repo in: * regenerate.bash * cmd/protoc-gen-go/golden_test.go * cmd/protoc-gen-go-grpc/golden_test.go * (indirectly) internal/protogen/goldentest One of the problems with the former approaches is that they relied on a version of protoc that was specific to a developer's workstation. This meant that the result of generation was not hermetic. To address this, we rely on the hard-coded version of protobuf specified in the test.bash script. A summary of changes in this CL are: * The internal_gengo.GenerateFile and internal_gengogrpc.GenerateFile functions are unified to have consistent signatures. It seems that the former accepted a *protogen.GeneratedFile to support v1 where gRPC code was generated into the same file as the base .pb.go file. However, the same functionality can be achieved by having the function return the generated file object. * The test.bash script patches the protobuf toolchain to have properly specified go_package options in each proto source file. * The test.bash script accepts a "-regenerate" argument. * Add generation for the well-known types. Contrary to how these were laid out in the v1 repo, all the well-known types are placed in the same Go package. * Add generation for the conformance proto. * Remove regenerate.bash * Remove internal/protogen * Remove cmd/protoc-gen-go/golden_test.go * Remove cmd/protoc-gen-go-grpc/golden_test.go * Add cmd/protoc-gen-go/annotation_test.go Change-Id: I4a1a97ae6f66e2fabcf4e4d292c95ab2a2db0248 Reviewed-on: https://go-review.googlesource.com/c/164477 Reviewed-by: Damien Neil <dneil@google.com>
41 lines
1.0 KiB
Go
41 lines
1.0 KiB
Go
// 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 a Go protocol
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// buffer package.
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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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gengo "github.com/golang/protobuf/v2/cmd/protoc-gen-go/internal_gengo"
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"github.com/golang/protobuf/v2/protogen"
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)
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func main() {
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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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importPrefix = flags.String("import_prefix", "", "deprecated option")
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opts = &protogen.Options{
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ParamFunc: flags.Set,
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}
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)
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protogen.Run(opts, 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")
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}
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if *importPrefix != "" {
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return errors.New("protoc-gen-go: import_prefix is not supported")
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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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return nil
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})
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}
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