[bug#50755] [PATCH v2] import: Generate list of importers based on available modules

[pinoaffe]

Hi,

thank you for your feedback!

zimoun writes:
> First, I think, it breaks "guix import --help".  Therefore, this patch
> needs a v3. :-)
I sent a v3, thanks :)

> The question is: which performance loss is acceptable here?
To me a performance loss similar to the one you describe would be
acceptable, particularly since it should be a constant performance hit
for every time ~guix import~ is called, aka it won't significantly
impact long-running import commands. However, I think I may be somewhat
biased on this one, so it'd be great if others could weigh in :)

Kind regards,
pinoaffe