Re: Improve `guix pull --commit=` behaviour when with channels

[Ludovic Courtès]

Hello,

pkill9  skribis:

> When extra channels have been added, running `guix pull
> --commit=` returns "guix pull: error: '--url', '--commit', and
> '--branch' are not applicable". I think it would be better if these
> flags only affected the "guix" channel, including when extra channels
> have been added.

That’s a good idea.  Done in 72f749dcb83dbda9f98e28fa3622cc1d3db6275a.

Thanks,
Ludo’.

Improve `guix pull --commit=` behaviour when with channels

[pkill9]

When extra channels have been added, running `guix pull
--commit=` returns "guix pull: error: '--url', '--commit', and
'--branch' are not applicable". I think it would be better if these
flags only affected the "guix" channel, including when extra channels
have been added.

This makes sense considering `guix pull` fails
when no channel with the name "guix" exists - if you provide a list of
channels in channels.scm and none of them are named "guix", `guix pull`
will fail (a channel named "guix" is provided in %default-channels).

Thoughts?