From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 13 Dec 2023 15:38:43 GMT
Subject: Re: Allow adding files from git submodule to parent git repo if they are in .gitignore in the submodule
Message-ID: <xmqq34w6nmd8.fsf@gitster.g>
In-Reply-To: <CAL5pyKseyxEfLbgEkDHSqWQVLGkrrcZU=BzRx2zZOaCdQbMaoA@mail.gmail.com>

Alexey Murz Korepov <murznn@gmail.com> writes:

> ```
> $ git add -f mysubmodule/config.yaml
> fatal: Pathspec 'mysubmodule/config.yaml' is in submodule 'mysubmodule'
> ```
> But I see no problems with doing this, if the file is in .gitignore of
> the mysubmodule submodule.
>
> So, let's discuss the approach of how we can allow this in git?

What should happen when mysubmodule/.gitignore changes?  Who
guarantees that such a file stolen by the superproject will stay in
the .gitignore file in the submodule?

I do not think you want to go there, and I do not think I want to
see such a behaviour in Git, as we would be the ones who will be
blamed for the resulting mess.

The right solution probably is to keep such a file in a directory
that is separate from the directory where you bind your submodule.
Track the file in the superproject, and have a build procedure to
copy it into the submodule directory (as an untracked file, of
course).