protc-gen-go

The protoc-gen-go project is another protoc plugin to generate Go code for both proto2 and proto3 versions of the protocol buffer language.

The protoc-gen-go works just like official utility, and provides some new features to auto generate message field tag and custimize field name from comments.

For more information about the usage of this plugin, see: https://protobuf.dev/reference/go/go-generated.

Features

• auto generate message field tags from comments
• customize message field name

Limitations

• only works for message field declaration

Installation

go install github.com/derekhjray/proto-gen-go

Usage

• auto generate field tags

  protobuf source code

  message foo {
      // @gorm.tag=column:id;autoIncrement
      // @json.tag=ID
      int64 id = 1;
  }

  generated go source code

  type Foo struct {
      state         protoimpl.MessageState
      sizeCache     protoimpl.SizeCache
      unknownFields protoimpl.UnknownFields
  
      Id int64 `protobuf:"varint,1,opt,name=id,proto3" json:"ID,omitempty" gorm:"column:id;autoIncrement"`
  }

• customize field name

  protobuf source code

  message foo {
      // @go.name=ID
      int64 id = 1;
  }

  generated go source code

  type Foo struct {
      state         protoimpl.MessageState
      sizeCache     protoimpl.SizeCache
      unknownFields protoimpl.UnknownFields
  
      ID int64 `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
  }