Re: Possible to unshallow or deepen based on local objects?

Mark Rushakoff [off-list ref] writes:

I have a shallow clone of a repository. Then sometime later, I obtain a bundle
containing full history.

I thought I could use git fetch --unshallow /path/to/repo.bundle
mybranch:mybranch, but I've found that git does not support shallow fetches
from a bundle and that unshallow is actually an alias for --depth=2147483647 in
4dcb167fc3 (fetch: add --unshallow for turning shallow repo into complete one,
2013-01-11).

If I do a plain fetch from the bundle, I can manually modify .git/shallow to
"unshallow" my repository like the previous email in this thread. But what I
think I still want here is a way to tell git "here are all the objects I have;
update the shallow boundaries accordingly."

It sounds like a quite sensible request to me.  

Offhand, I do not think of anything that would make it fundamentally
impossible to allow us to first add objects to the .git/objects
directory by whatever means available to you (including, but not
limited to, exploding the object data from a full bundle) and then
to tell Git to see if there (still) are missing commits and objects
that ought to exist but don't that necessitates the repository to be
marked "shallow", and adjust the boundary.

I however do not think there is such a code already written X-<.