Allow querying for all generated repositories of a given module extension

[adincebic]

Description of the feature request:

i want to query for all generated repositories of a given module extension.

Background

Recently I was building a tool which discovers unused swift_library deps and removes them. It also replaces transitive swift_library deps with direct references. To be able to find all available Swift modules, I need to be able to query generated repos.

1. For a Swift moduleFoo within my repo I ran bazel query 'attr(module_name, "^Foo$", kind("swift_library", //...))' and got target labels that match given criteria.
2. For a third-party swift module RxSwift I ran bazel query 'attr(module_name, "^RxSwift$", kind("swift_library", //...))' and got no matches as it was made available by rules_swift_package_manager as a generated repo.

It would be useful to be able to query generated repos using bazel query

Which category does this issue belong to?

Core

What underlying problem are you trying to solve with this feature?

No response

Which operating system are you running Bazel on?

macOS

What is the output of bazel info release?

release 7.5.0

If bazel info release returns development version or (@non-git), tell us how you built Bazel.

No response

What's the output of git remote get-url origin; git rev-parse HEAD ?

Have you found anything relevant by searching the web?

I asked around on Bazel Slack and was made aware that this is not possible right now.

Any other information, logs, or outputs that you want to share?

No response

[fmeum]

Have you tried bazel mod show_extension?

[adincebic]

Have you tried bazel mod show_extension?

Looks like it can do the trick though it would still be nice to do it via query.