分享一个合并 protobuf 的小工具

https://github.com/joesonw/oneproto

用来把多个 protobuf 合并为一个(如果 package 不同,通过 nested message 来区别命名空间)

用来解决项目大了, protobuf 之间难免会产生相互引用. 但是放在不同的文件中, 维护性又更好, 于是产生了这个小工具

例子

user.proto

syntax = 'proto3';
option go_package = 'generated/proto;pb';

package example.com.users;

import "proto/group.proto";

message User {
    string id = 1;
    string name = 2;
    string email = 3;
    string password = 4;
    string created_at = 5;
    string updated_at = 6;
    repeated groups.Group groups = 7;
}

group.proto

syntax = 'proto3';
option go_package = 'generated/proto;pb';

package example.com.groups;

import "proto/user.proto";

message Group {
  string name = 1;
  repeated users.User users = 2;
}

产生的文件

syntax = 'proto3';
option go_package = 'generated/proto;pb';

package example.com;

message groups {
    message Group {
        string name = 1;
        repeated users.User users = 2;
    }

}

message users {
    message User {
        string id = 1;
        string name = 2;
        string email = 3;
        string password = 4;
        string created_at = 5;
        string updated_at = 6;
        repeated groups.Group groups = 7;
    }

}