Re: project.el: git submodules?

[Dmitry Gutov]

On 14.05.2020 23:01, Stefan Monnier wrote:
> +                                    (or
> +                                     (let ((default-directory parent))
> +                                       (vc-root-dir))
> +                                     root)))))
>
> I'm not familiar enough with this code to understand what it does: which
> part tests "is it a submodule"?

The removed part.

> Or alternatively, which part compares
> the location of the two repositories?

The part quoted above. If the parent directory of the root of the 
current Git worktree belongs to a VC worktree (vc-root-dir returns 
non-nil), use that worktree's root. Otherwise, use the root of the 
current repo.