Passing debug_mode via go_deps to go_repository is not supported

[davidbyttow]

It appears that there is no way to pass in debug_mode to go_repository via go_deps with bzlmod. Unless I'm missing something, this makes it difficult to see when things go wrong during BUILD file generation because errors are not reported directly from the gazelle command.

https://github.com/bazelbuild/bazel-gazelle/blob/f93e45f142de1a32389f1b8798880e5cf903c432/internal/go_repository.bzl#L372-L374

[fmeum]

Happy to review a PR that adds a corresponding attr to the go_deps extension. I could see a single attribute that sets debug_mode for all repo rules being more ergonomic, but it could also turn out too noisy.

[davidbyttow]

Thanks @fmeum. I added a single attribute to config. LMK if you'd like it elsewhere. Seems like it could be extended per module to be less noisy later. #1806