protoc-gen-openapiv2 not working for google.api.field_behavior as expected

[int64max]

🐛 Bug Report

According to this, protoc-gen-openapiv2 can mark fields as required based on the google.api.field_behavior field option. But when I tried doing so, it does not mark the fields as required.

Note that the fields are only marked as required if I use specify them as required by using grpc.gateway.protoc_gen_openapiv2.options.openapiv2_schema.

To Reproduce

My proto file myproto.proto

syntax = "proto3";

option go_package = "tms.com/test";

import "protoc-gen-openapiv2/options/annotations.proto";
import "google/api/field_behavior.proto";
import "google/api/annotations.proto";

message TestMessage {
  // Works if I uncomment this block.
  // option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_schema) = {
  //  json_schema: { required: [ "my_required_field" ] }
  //};

  int32 my_optional_field = 1;
  int32 my_required_field = 2 [(google.api.field_behavior) = REQUIRED];
}
...

Generate spec via:
protoc -I /opt/include -I . --openapiv2_out=logtostderr=true,json_names_for_fields=true:gen myproto.proto

Expected behavior

...
    "TestMessage": {
      "type": "object",
      "properties": {
        "myOptionalField": {
          "type": "integer",
          "format": "int32"
        },
        "myRequiredField": {
          "type": "integer",
          "format": "int32"
        }
      },
      "required": [
        "my_required_field"
      ]
    },
...

Actual Behavior

...
    "TestMessage": {
      "type": "object",
      "properties": {
        "myOptionalField": {
          "type": "integer",
          "format": "int32"
        },
        "myRequiredField": {
          "type": "integer",
          "format": "int32"
        }
      }
    },
...

Your Environment

$ protoc --version
libprotoc 3.21.6

What am I missing? Is google.api.field_behavior not supported by protoc-gen-openapiv2?

[johanbrandhorst]

Hi. Sorry that you ran into this, but you are indeed right that this is not currently supported. This issue is a dupe of #3058.