bug#30428: guix git-fetch doesn't specify "--depth 1" - git clone clones a lot without any use

[Ludovic Courtès]

Hi Danny,

Danny Milosavljevic <address@hidden> skribis:

> It's already much nicer just to try the shallow commit checkout and fall back
> to the current way if it doesn't work - and it's low risk.

Oh right, I hadn’t groked that this is what your patch does.

In that case I’m all for it, it seems to be low-risk indeed.  Perhaps
leave a comment explaining that for some servers “--depth 1” won’t work
when we’re passing a commit and not a tag.

Thank you!

Ludo’.