tfplugindocs does not handle tags

[abergmeier]

I have a Terraform Provider which needs special tags to build.
These tags I can pass to:

go run -tags containers_image_openpgp github.com/hashicorp/terraform-plugin-docs/cmd/tfplugindocs

The problem is though, that tfplugindocs does not pass along the tags.
As a result tflugindocs fails building Go files.

Error: /home/runner/go/pkg/mod/github.com/containers/image/v5@v5.16.2-0.20211021181114-25411654075f/signature/mechanism_gpgme.go:17:16: undefined: gpgme.Context
Error: /home/runner/go/pkg/mod/github.com/containers/image/v5@v5.16.2-0.20211021181114-25411654075f/signature/mechanism_gpgme.go:67:44: undefined: gpgme.Context
Error: /home/runner/go/pkg/mod/github.com/containers/image/v5@v5.16.2-0.20211021181114-25411654075f/signature/mechanism_gpgme.go:68:14: undefined: gpgme.New
Error: /home/runner/go/pkg/mod/github.com/containers/image/v5@v5.16.2-0.20211021181114-25411654075f/signature/mechanism_gpgme.go:72:27: undefined: gpgme.ProtocolOpenPGP
Error: /home/runner/go/pkg/mod/github.com/containers/image/v5@v5.16.2-0.20211021181114-25411654075f/signature/mechanism_gpgme.go:76:28: undefined: gpgme.ProtocolOpenPGP
Error: /home/runner/go/pkg/mod/github.com/containers/image/v5@v5.16.2-0.20211021181114-25411654075f/signature/mechanism_gpgme.go:98:20: undefined: gpgme.NewDataBytes
Error: /home/runner/go/pkg/mod/github.com/containers/image/v5@v5.16.2-0.20211021181114-25411654075f/signature/mechanism_gpgme.go:127:20: undefined: gpgme.NewDataBytes
Error: /home/runner/go/pkg/mod/github.com/containers/image/v5@v5.16.2-0.20211021181114-25411654075f/signature/mechanism_gpgme.go:132:18: undefined: gpgme.NewDataWriter
Error: /home/runner/go/pkg/mod/github.com/containers/image/v5@v5.16.2-0.20211021181114-25411654075f/signature/mechanism_gpgme.go:136:25: undefined: gpgme.Key
Error: /home/runner/go/pkg/mod/github.com/containers/image/v5@v5.16.2-0.20211021181114-25411654075f/signature/mechanism_gpgme.go:136:61: undefined: gpgme.SigModeNormal
Error: /home/runner/go/pkg/mod/github.com/containers/image/v5@v5.16.2-0.20211021181114-25411654075f/signature/mechanism_gpgme.go:136:61: too many errors

Thus I would need a way for tfplugindocs to handle tags when generating code.

[bflad]

Given the current code structure and that it does not appear that Go exposes build tags during runtime, it seems this would require a new CLI flag that gets threaded through to the build call.

[abergmeier]

seems this would require a new CLI flag that gets threaded through to the build call.

And IMO this would be preferable since once you have to use build tags I would expect that you KnowWhatYouAreDoing™.
The corner case might be though, where a valid compilation gets produced with or without certain build tags.

Anyway - I started a naive implementation here: #103. Comments very welcome.

[Soneca-ii]

this would be much appreciated. Is there any workaround?