Re: Make all tree-sitter modes optional

[Dmitry Gutov]

On 17/01/2023 19:38, Eli Zaretskii wrote:
> > Date: Tue, 17 Jan 2023 19:10:45 +0200
> > Cc: casouri@gmail.com, monnier@iro.umontreal.ca, larsi@gnus.org,
> >   theo@thornhill.no, jostein@secure.kjonigsen.net, emacs-devel@gnu.org
> > From: Dmitry Gutov <dgutov@yandex.ru>
> >
> > > > I can start a new session for an investigation, but I'm not going to
> > > > restart Emacs every time I evaluate a form.
> > >
> > > Why not?  It's easy and quick and solves all the problems you
> > > mentioned (and then some).
> >
> > That would increase the time and effort required for such an
> > investigation ~5x. (*)
>
> But testing in a session that is not clean is not recommended.  For
> reasons more important than the issue at hand...

With some experience, one can usually sort issues into those that 
require clean environment, those than might use it, and those that most 
likely don't. In the end, that saves time.

> However, I'm the last person to tell others how to organize their
> workflows, so I'll leave it at that.

Sure.

> > > You can start from "emacs -Q" and load whatever is needed.  You can
> > > make an ad-hoc init file that loads everything you need automatically,
> > > to save manual typing.  I'm doing this all the time when the setup is
> > > complicated.
> >
> > And now more people will have to, in less complicated situations, which
> > previously required no such preparation.
>
> Maybe.  Like I said, the solution I proposed is not ideal, I just
> don't see a clearly better one.

Every approach we can take will annoy somebody, like like in SPC xkcd.

But dropping the auto-mode-alist modifications looks perfectly in line 
with the conservative approach we have used in the past, where features 
are rolled out gradually.

I also don't fully understand the benefits of your proposal. Suppose we 
apply it. You talked about how easier it will be to document the new 
behaviors if all ts modes are consistent. Okay. What are we going to say 
in that documentation?

Let's say there are two users, Bob and Alice. Bob has tried out 
yaml-ts-mode and wants to use it regularly. Alice has tried out 
js-ts-mode and also wants to use it from now on. What will be our 
recommendations for them to make that happen?