如何将一个项目中的原始文件包含到另一个项目中 [英] How to include proto files from one project in another project

问题描述

我无法在项目B中包含项目A中存在的原型.该想法是在项目A和项目B中将 GrpcServices ="Server" 的原型包含在项目A中.测试中包含相同的原型，但现在与 GrpcServices ="Client"

I am not able to include protos present in Project A in a project B. The idea would be to have the protos with GrpcServices="Server" in project A and in project B, of tests, include the same protos but, now, as GrpcServices="Client"

ProjectA/Protos/Profile.proto

syntax = "proto3";

package profile;
option csharp_namespace = "ProjectA.Protos";
import "google/protobuf/empty.proto";

service ProfileService {
  rpc Get(google.protobuf.Empty) returns (Profile);
}

message Profile {
  string profile_id = 1;
  string description = 2;
}

ProjectA/Protos/User.proto

syntax = "proto3";

package user;
option csharp_namespace = "ProjectA.Protos";
import "google/protobuf/wrappers.proto";
import "Protos/Profile.proto";

service UserService {
  rpc Get(google.protobuf.StringValue) returns (UserDetail);
}

message UserDetail {
  string id = 1;
  string name = 2;
  repeated profile .Profile profiles = 7;
}

项目B .csproj(测试项目)

Project B .csproj (The test project)

<ItemGroup>
  <Protobuf Include="..\ProjectA\Protos\*.proto" GrpcServices="Client" ProtoRoot="Protos">
    <Link>Protos\*.proto</Link>
  </Protobuf>
</ItemGroup>

使用这些设置，我总是最终会遇到此错误返回

With these settings I always end up having this error return

error : File does not reside within any path specified using --proto_path (or -I).  You must specify a --proto_path which encompasses this file.  Note that the proto_path must be an exact prefix of the .proto file names -- protoc is too dumb to figure out when two paths (e.g. absolute and relative) are equivalent (it's harder than you think).

推荐答案

为应用的解决方案带来回报.

Bringing a return on the applied solution.

在同一解决方案中尝试执行此导入时出现的问题是， .csproj 中的每个包含都将尝试生成C#类，并且这些类是使用全局上下文"生成的.并且这防止了服务器"的产生.和客户"类，因为它们具有相同的名称.

The problem that occurs when trying to do this import in the same solution is that each inclusion in a .csproj it will try to generate C# classes and these classes are generated with "global context" and this prevents the generation of "server" and "client" classes because they would have the same names.

最简单的解决方案是将 Both 都添加到原始文件的include配置中.因此，生成的C#类已经在客户端和服务器端进行了设计，因此可以在项目A(服务器)和项目B(客户端)中使用它们.

The easiest solution was to add Both to the proto file's include configuration. Thus, the generated C# classes already contemplate the client and server side, so it is possible to use them both in project A (server) and in project B (client).

< Protobuf Include ="Protos \ *.proto"；GrpcServices =两者"/>

Jan Tattermusch在评论中提出的解决方案将有一个仅包含protos文件的项目C，将采用相同的配置，也是一个很好的选择.

The solution presented by Jan Tattermusch, in the comments, would have a project C with only the protos files, would follow the same configuration and is also a great alternative.

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