On Mon, Nov 20, 2023 at 7:24 AM Junio C Hamano [off-list ref] wrote:

Adam Majer [off-list ref] writes:

quoted

In a garbage collected bare git repository, the refs/ subdirectory is
empty.  In use-cases when such a repository is directly added into
another repository, it no longer is detected as valid.

Josh & Glen [*], isn't this a layout that we  explicitly discourage and
eventually plan to forbid anyway?

If my recollection of [1] serves me correctly, we didn't come to a
strong conclusion on whether or not to forbid bare repositories in the
working tree, particularly because it would leave existing repos (like
Git LFS) high and dry. Though personally, I'd be happy to see a
version of Git that forbade bare repositories in the working tree.

I don't really recall the bare repo tracing bits, so I'll leave that to Josh.

[1] https://lore.kernel.org/git/kl6lsfqpygsj.fsf@chooglen-macbookpro.roam.corp.google.com/ (local)