Re: Bug: All git operations fail when .git contains a non-existent gitdir

[Tom Cook <tom.k.cook@gmail.com>]

The easiest way to reproduce it is this:

$ mkdir test
$ cd test
$ echo "gitdir: /foo/bar" > .git
$ git ls-remote https://github.com/torvalds/linux

We happen to use overlay mounts in our build system in a way that maps
a git submodule from one place to another so that its "gitdir" is
invalid and then attempt a `git ls-remote` from that location which
unexpectedly fails.  But the above reproduces the problem well enough.

Regards,
Tom

On Wed, Jul 21, 2021 at 11:59 PM brian m. carlson
<sandals@crustytoothpaste.net> wrote:
>
> On 2021-07-21 at 09:17:36, Tom Cook wrote:
> > What did you do before the bug happened? (Steps to reproduce your issue)
> >
> > Add a git submodule to a git repository.
> > Overlay-mount that submodule to another place in the filesystem.
> > Attempt any git operation in the overlay-mounted path.
>
> I'm not sure about what you mean by an overlay-mount operation.  Can you
> provide some specific commands that we can run at a shell that reproduce
> the issue?
> --
> brian m. carlson (he/him or they/them)
> Toronto, Ontario, CA