Re: Breakage by commit "779bc886f9 * Improve detection of Git submodules"

[Tassilo Horn <tsdh@gnu.org>]

Dmitry Gutov <dgutov@yandex.ru> writes:

> On 15.05.2020 22:03, Tassilo Horn wrote:
>> Hi Dmitry,
>> since the commit in the subject, I get errors like the below when
>> finding a file in a git repository:
>
> Thanks, should be fixed now.

Nope, sorry.  With emacs -Q evaling

(progn
  (require 'project)
  (project-try-vc "~/Repos/el/emacs/lisp/net"))

gives

Debugger entered--Lisp error: (file-missing "Opening input file" "No such file or directory" "/home/horn/Repos/el/emacs/lisp/net/.git")
  insert-file-contents("/home/horn/Repos/el/emacs/lisp/net/.git")
  project-try-vc("~/Repos/el/emacs/lisp/net")
  (progn (require 'project) (project-try-vc "~/Repos/el/emacs/lisp/net"))

I've edebugged, and the problem is that

(let ((default-directory "~/Repos/el/emacs/lisp/net"))
  (vc-root-dir)) ;=> nil

That's because `vc-deduce-backend' returns nil.  It only looks at
default-directory when in dired-mode, shell-mode, or compilation-mode...
I wonder why that's restricted and not the fallback case...

Bye,
Tassilo