`ensure the imports are used` is broken

[mashail]

We have a proto with this message

.....
import "packages/proto/types/language.proto";
import "packages/api/protos/common/v1/common.proto";

.....
......

message GetBeneficiaryAccountsByAliasRequest {
  string customer_id = 1 [(validate.rules).string.uuid = true];
  Alias alias = 2;

  cigar.types.Language language = 4 [(validate.rules).enum = {not_in: [0], defined_only: true}];
  cigar.api.common.v1.BankEnum.Bank bank = 3 [(validate.rules).enum = {defined_only: true}];
}

....
....

After upgrading protoc-gen-validate we are getting this error

beneficiaries.pb.validate.go:41:6: undefined: typespb.BankEnum_Bank

When I checked the generated code

var (
	_ = bytes.MinRead
	_ = errors.New("")
	_ = fmt.Print
	_ = utf8.UTFMax
	_ = (*regexp.Regexp)(nil)
	_ = (*strings.Reader)(nil)
	_ = net.IPv4len
	_ = time.Duration(0)
	_ = (*url.URL)(nil)
	_ = (*mail.Address)(nil)
	_ = anypb.Any{}
	_ = sort.Sort

	_ = types.BankEnum_Bank(0)

	_ = v1.BankEnum_Bank(0)
)

The issue types.BankEnum_Bank(0) should be types.Language(0)

[mashail]

Help please

[dbaneman]

We're running into this issue as well. Are there any updates on this? Thanks!

[fifsky]

me too

[fsj]

Same here. I get:

var (
    // ...

    _ = ccsds.DataType(0)

    _ = manoeuvre.DataType(0)
)

However, only ccsds.DataType() exists. It seems the problem occurs for enum types defined within another package.

[WakesyChen]

meet this too

[eleduardo]

Hey @rodaine not sure if you are the right person to look at this but this bug is pretty severe. The generated go code is unusable. I think the culprit is the change in the template (go/file.go) from {{ range $pkg, $path := enumPackages (externalEnums .) }} {{ $pkg }} "{{ $path }}" {{ end }} to {{ range $pkg, $path := enumPackages (externalEnums .) }} _ = {{ $pkg }}.{{ enumName (index (externalEnums $) 0) }}(0) {{ end }}

it would seem to me that the index on the second lookup is fixed and that is why the combo of pkg/path is broken and you always get the same enum name regardless...

I honestly don't understand why the change was made in the first place (like I don't get what was the case) but as of now this is broken.

I can try a couple of combinations and see if I can come up with a fix but if you can see the fix and can do it faster than I can it would be great to have this in.

[carsonoid]

I would also be interested in an update on this. It makes the validator generation unusable for some of our proto files.

[eleduardo]

@rodaine @keith @rmichela sorry for just randomly pinging you on this issue!! It honestly is pretty bad since the code that gets generated is unusable... I sent a PR last night but then I just realized there are a couple others trying to address it!! This seems to be the list:

https://github.com/envoyproxy/protoc-gen-validate/pull/586 https://github.com/envoyproxy/protoc-gen-validate/pull/624 https://github.com/envoyproxy/protoc-gen-validate/pull/604 and of course mine https://github.com/envoyproxy/protoc-gen-validate/pull/626

Is there any way to get any of these in and close the issue for good?

[rmichela]

I hate to be the bearer of bad news, but per #616 PGV is effectively unmaintained.

[eleduardo]

Hey @ElliotMJackson thank you so much for starting work on this one!! I see that the PRs are getting closed, do you happen to have an ETA on when this will be fixed?

[elliotmjackson]

yeah working on it now, shouldn't be too long at all - the fix has existed on various forks in the wild for a long time so it's looking fairly straight forward. In saying that, I'm still finding my feet maintaining the project so thanks in advance for you continued patience.

[eleduardo]

@ElliotMJackson thank you!!! Happy to help if I can!

[glerchundi]

Just to let you know that we included another fix to solve an issue with enums that belong to the same proto package name but have a different go packages defined on them. This happens in those packages like google.type.

References:

• https://github.com/googleapis/googleapis/blob/master/google/type/dayofweek.proto
• https://github.com/googleapis/googleapis/blob/master/google/type/date.proto

Fix: https://github.com/saltosystems/protoc-gen-validate/pull/10/files