protobuf validator command generates file in wrong path - protocol-buffers

Question

I am trying to include request validation for grpc. I modified the protobuf command like this.
pkg/test/test.proto contains my schema.
If i run the below command :
protoc --go_out=. \
--proto_path=${GOPATH}/src \
--proto_path=${GOPATH}/src/github.com/gogo/protobuf/gogoproto/ \
--proto_path=${GOPATH}/src/github.com/mwitkow/go-proto-validators/ \
--proto_path=. \ --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative pkg/test/test.proto --govalidators_out=.
The validator.go file generated file is not generated inside pkg/test instead it is getting generated inside a new folder created {source relative pkg}/pkg/test/test.proto/validator.go.
How to generate validator.go file without the folder structure in pkg/test?

Answer 1

Analysis
It looks like the *.validator.pb.go files are generated in the wrong directory.
Using the pkg/test/test.proto file with the following content:
syntax = "proto3";
option go_package = "github.com/example-user/example-repository";
service Greeter {
rpc SayHello (HelloRequest) returns (HelloReply) {}
}
message HelloRequest {
string name = 1;
}
message HelloReply {
string message = 1;
}
Produced the file system contents:
$ find .
.
./github.com
./github.com/example-user
./github.com/example-user/example-repository
./github.com/example-user/example-repository/test.validator.pb.go
./pkg
./pkg/test
./pkg/test/test_grpc.pb.go
./pkg/test/test.proto
./pkg/test/test.pb.go
Solution
Add the --govalidators_opt=paths=source_relative command line argument.
Please, note the parameter name:
--govalidators_opt
The complete command line:
protoc --go_out=. \
--proto_path=. \
--go_opt=paths=source_relative \
--go-grpc_out=. \
--go-grpc_opt=paths=source_relative \
--govalidators_out=. \
--govalidators_opt=paths=source_relative \
pkg/test/test.proto
Produced the file system contents:
$ find .
.
./pkg
./pkg/test
./pkg/test/test_grpc.pb.go
./pkg/test/test.proto
./pkg/test/test.pb.go
./pkg/test/test.validator.pb.go
Additional references
Seems to be an example. Comment.
A GitHub issue created by the asker? How to specify path for generated validator.go ? · Issue #121 · mwitkow/go-proto-validators.