Duplicate /v2 applied on some files

[johanbrandhorst]

Hi!

I tried running mod on the grpc-gateway project and it produced some strange imports on some of the files:

examples/internal/server/echo.go:

package server

import (
	"context"

	"github.com/golang/glog"
	examples "github.com/grpc-ecosystem/grpc-gateway/v2/v2/examples/internal/proto/examplepb"
	"google.golang.org/grpc"
	"google.golang.org/grpc/metadata"
)

This happened to a few of them, but we also got some even more interesting imports:
runtime/errors.go:

package runtime

import (
	"context"
	"io"
	"net/http"

	"github.com/grpc-ecosystem/grpc-gateway/v2/v2/v2/internal"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/grpclog"
	"google.golang.org/grpc/status"
)

Steps to reproduce:

1. Check out master of grpc-gateway:

   $ git clone git@github.com:grpc-ecosystem/grpc-gateway.git

2. Run mod upgrade

   $ mod upgrade

[marwan-at-work]

@johanbrandhorst hey 👋

Thanks for the catch :)

I just fixed this here and it seems to remove the issue.

Would love it if you can give it a try and let me know if it's working on your side.

More context: it looks like the ./... pattern for go/packages is loading multiple packages twice here, which is probably worth raising upstream. For now, I just ensured we don't process the same package or file twice.

[johanbrandhorst]

@marwan-at-work hey 👋 😍!

That seems to have fixed it, thanks!