Re: Make all tree-sitter modes optional

[Dmitry Gutov]

On 17/01/2023 20:04, Eli Zaretskii wrote:
> > Date: Tue, 17 Jan 2023 19:59:04 +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 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?
> That's already in the patch that I posted.  Suggestions for improving
> it are welcome.

This part, right?

+The new modes based on tree-sitter are for now entirely optional, and
+you must turn them on manually, or load them in your init file, or
+customize 'auto-mode-alist' to turn them on automatically for certain
+files.

I thought there would be something more in the docs, given that the new 
behavior is unusual.

But I see you are referring to auto-mode-alist here, modifying which 
will still be necessary for js-ts-mode and python-ts-mode. Which will 
touch a lot of users, possibly even the majority of tree-sitter 
enthusiasts, given that JS and Python are some of the most popular 
languages these days.

And yet you rejected my counter-proposal claiming (if I got your 
position right) that modying auto-mode-alist is difficult/annoying/etc 
for an average user. To quote:

      - Customizing auto-mode-alist is not the easiest task, it
        requires good knowledge of Emacs regexps and alists.  So
        asking anyone who wants to try using the tree-sitter modes to
        do that is not the best idea from the POV of user-friendliness.

So which is it?

To "try out" tree-sitter modes, the users can 'M-x js-ts-mode' or etc 
either way. But to switch to the said mode, they will need to deal with 
auto-mode-alist, again, without any alternative.