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

From: Tom Cook <tom.k.cook@gmail.com>
Date: Jul 22, 2021, 13:13 UTC
Message-ID: <CAFSh4Uyr5v9Ao-j0j7yO_HkUZSovBmSg7ADia7XCNZfsspFUYg@mail.gmail.com>
In-Reply-To: <YPimnEtNgKD32r2o@camp.crustytoothpaste.net>

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:

Show 14 quoted lines

>
> 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