Re: Make all tree-sitter modes optional

[Theodor Thornhill]

Dmitry Gutov <dgutov@yandex.ru> writes:

> On 15/01/2023 16:01, Eli Zaretskii wrote:
>> You will
>> see that where possible, just loading a TS mode modifies
>> auto-mode-alist if the tree-sitter support for that mode is available,
>> whereas for other modes auto-mode-alist is modified only when the mode
>> is actually turned on successfully for the first time.  This is
>> because some of the TS modes have their own *.el files, whereas others
>> share a .el file with other modes, and so loading that file doesn't
>> necessarily means the user wants to use the tree-sitter based mode.
>
> If we *are* going to do this (make all ts mode strictly optional), I 
> don't think either of this is a good idea: for a given foo-ts-mode, the 
> user might already have an auto-mode-alist entry configured with another 
> mode (third-party or not), and they will likely 'M-x foo-ts-mode' to try 
> how well it works (or doesn't).
>
> Having auto-mode-alist modified automatically can come as a surprise 
> either way.
>
> Note the this is different to having the auto-mode-alist entries set up 
> from the outset, because the user's alterations override those.
>
> We can drop the auto-mode-alist alterations from ts modes altogether, to 
> bring them back when we do decide to enable them by default.

I'm fine with either, but I understood your proposal to just remove all
the auto-mode-alist additions for emacs-29, then let users config that
themselves.

Theo