Re: Automatic (e)tags generation and incremental updates

[Eli Zaretskii]

> Cc: tom@tromey.com, emacs-devel@gnu.org, philipk@posteo.net,
>  john@yates-sheets.org
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Mon, 11 Jan 2021 01:13:17 +0200
> 
> On 10.01.2021 20:14, Eli Zaretskii wrote:
> >> I don't know how to automate it better. If the buffer doesn't belong to
> >> any project, which tags table would we use for it? We'll have to prompt
> >> the user, and that's what we do already by default.
> > I thought this prompt will not be supported anymore.  If we are
> > keeping it as fallback when the current buffer doesn't specify which
> > tags table to use, then I'm okay with that.
> 
> For now it's clearly supported with the default value of 
> etags-regen-mode (which is 'off').

I meant with it's being ON, of course.

> Or if you 'M-x visit-tags-table' before having one auto-generated.

I meant both the generation and the usage.  Can we prompt the user in
both cases if the current buffer doesn't tell us where the tags table
should be?

> Would we prompt for the tags table just once upon encountering a 
> project-less buffer, and then use it for all such buffers in the current 
> session?

I think we should use it for buffers that don't have their local
value, yes.