Re: [PATCH v2] add test to demonstrate that shallow recursive clones fail

[Stefan Beller <sbeller@google.com>]

On Tue, Nov 17, 2015 at 11:46 AM, Jens Lehmann <Jens.Lehmann@web.de> wrote:
>
> But for quite some time you'll have older servers out there that
> don't support fetching a single sha1 or aren't configured to do so.

Only when talking about the open source side. If you have all the
submodules/superprojects on your companies mirror, you can control
the git installations there.

> Wouldn't it be better to give the user an appropriate warning and
> fall back to cloning everything for those submodules while using the
> optimized new method for all others and the superproject? Otherwise
> you won't be able to limit the depth if only a single submodule
> server doesn't support fetching a single sha1.
>

I think warnings are fine, but no fallbacks. The warning could look like:

    Server for submodule <foo> doesn't support fetching by sha1.
    Fetch again without depth argument.

and keep going with the other submodules. This would allow the user
to make an informed decision if they want to have the fallback solution
(which requires more band width, disk space)
On the other hand, that's what people do today, so it's not that bad either,
so I guess falling bad would work too.