genproto.sh script is broken

[gyuho]

$ ./scripts/genproto.sh
go: finding github.com/gogo/protobuf v1.0.0
go: finding github.com/gogo/protobuf/protoc-gen-gogo latest
go: finding github.com/gogo/protobuf/proto latest
go: finding github.com/gogo/protobuf/gogoproto latest
go: finding golang.org/x/tools/cmd/goimports latest
go: finding golang.org/x/tools/cmd latest
go: finding golang.org/x/tools latest
./scripts/genproto.sh: line 46: pushd: /home/leegyuho/go/src/go.etcd.io/etcd/gopath.proto/src/github.com/gogo/protobuf: No such file or directory

Even with workaround (disable git reset && install), it still fails with newest gRPC gateway plugin:

go: downloading gopkg.in/yaml.v2 v2.2.1
# github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor
gopath.proto/pkg/mod/github.com/grpc-ecosystem/grpc-gateway@v1.6.2/protoc-gen-grpc-gateway/descriptor/services.go:146:49: opts.ResponseBody undefined (type *annotations.HttpRule has no field or method ResponseBody)

Reproducible both in OS X and Linux.

@hexfusion @jingyih Can you take a look?

[gyuho]

Also protoc v3.6.1 has been released https://github.com/protocolbuffers/protobuf/releases/tag/v3.6.1. We should bump up to protoc version in that script.

[hexfusion]

@gyuho GO111MODULE=off scripts/genproto.sh. Does that work? I have played with 3.5.1+ and the swagger output is a mess. I will take a deeper look.

@@ -260,11 +260,11 @@
     },
     "/v3alpha/auth/user/add": {
       "post": {
-        "summary": "UserAdd adds a new user.",
+        "summary": "Txn processes multiple requests in a single transaction.\nA txn request increments the revision of the key-value store\nand generates events with the same revision for every completed request.\nIt is not allowed to modify the same key several times within one txn.",
         "operationId": "UserAdd",
         "responses": {
           "200": {
-            "description": "",
+            "description": "A successful response.",
             "schema": {
               "$ref": "#/definitions/etcdserverpbAuthUserAddResponse"
             }

[hexfusion]

Fairly certain the comment issue is caused upstream by grpc-ecosystem/grpc-gateway#746. Will review/resolve.