GNU bug report logs - #58894
Comments on Eglot manual

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Package: emacs;

Reported by: Augusto Stoffel <arstoffel <at> gmail.com>

Date: Sun, 30 Oct 2022 11:06:01 UTC

Severity: normal

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#58894: closed (Comments on Eglot manual)
Date: Sun, 06 Nov 2022 07:48:02 +0000
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Your message dated Sun, 06 Nov 2022 09:47:10 +0200
with message-id <831qqg34ox.fsf <at> gnu.org>
and subject line Re: bug#58894: Comments on Eglot manual
has caused the debbugs.gnu.org bug report #58894,
regarding Comments on Eglot manual
to be marked as done.

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58894: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=58894
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[Message part 2 (message/rfc822, inline)]
From: Augusto Stoffel <arstoffel <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Comments on Eglot manual
Date: Sun, 30 Oct 2022 12:05:27 +0100
Find below some comments on the "Customizing Eglot" section of the manual:

> [...] via the variable ‘eglot-workspace-configuration’.  Eglot sends the
> portion of the settings contained in this variable to each server for
> which such settings were defined in the variable.

This is not true.  The entire `eglot-workspace-configuration' is sent to
the server; presumably, severs ignore everything which is not under its
own prefix, but that's just a convention.

> JSON values ‘true’, ‘false’, ‘null’ and ‘{}’ are represented by the
> Lisp values ‘t’, ‘:json-false’, ‘nil’, and ‘eglot-{}’, respectively.

Unless something has been renamed recently, it's `eglot--{}', not
`eglot-{}'.

>    Alternatively, the same configuration could be defined as follows:
> 
>      ((nil
>        . ((eglot-workspace-configuration
>            . (:pylsp (:plugins (:jedi_completion (:include_params t
>                                                   :fuzzy t)
>                                 :pylint (:enabled :json-false)))
>               :gopls (:usePlaceholders t))))))

This is more or less obvious, if you know how dir-local variables work.
So I would suggest mentioning a different configuration method:

Alternatively, you can set a default workspace configuration globally by
adding the following to your init file:

       (setq-default
         eglot-workspace-configuration
         '(:pylsp (:plugins (:jedi_completion (:include_params t
                                               :fuzzy t)
                             :pylint (:enabled :json-false)))
           :gopls (:usePlaceholders t))



>    This is an equivalent setup which sets the value for all the
> major-modes inside the project; Eglot will use for each server only the
> section of the parameters intended for that server.

Again, this is not true.  Rather, each sever will presumably ignore any
settings not under its own "namespace".


[Message part 3 (message/rfc822, inline)]
From: Eli Zaretskii <eliz <at> gnu.org>
To: João Távora <joaotavora <at> gmail.com>
Cc: 58894-done <at> debbugs.gnu.org, arstoffel <at> gmail.com
Subject: Re: bug#58894: Comments on Eglot manual
Date: Sun, 06 Nov 2022 09:47:10 +0200
> From: João Távora <joaotavora <at> gmail.com>
> Date: Thu, 3 Nov 2022 16:08:41 +0000
> Cc: Augusto Stoffel <arstoffel <at> gmail.com>, 58894 <at> debbugs.gnu.org
> 
> Hello, my comments:
> 
> On Thu, Nov 3, 2022, 13:51 Eli Zaretskii <eliz <at> gnu.org> wrote:
> 
>  > From: Augusto Stoffel .
>  > 
>  > This is not true.  The entire `eglot-workspace-configuration' is sent to
>  > the server; presumably, severs ignore everything which is not under its
>  > own prefix, but that's just a convention.
> 
> Augusto is correct. His phrasing is acceptably clear for the manual imo.
> 
>  > > JSON values ‘true’, ‘false’, ‘null’ and ‘{}’ are represented by the
>  > > Lisp values ‘t’, ‘:json-false’, ‘nil’, and ‘eglot-{}’, respectively.
>  > 
>  > Unless something has been renamed recently, it's `eglot--{}', not
>  > `eglot-{}'.
> 
> Something has been renamed recently. eglot--{} is an alias.
> 
>  > >    Alternatively, the same configuration could be defined as follows:
>  > > 
>  > >      ((nil
>  > >        . ((eglot-workspace-configuration
>  > >            . (:pylsp (:plugins (:jedi_completion (:include_params t
>  > >                                                   :fuzzy t)
>  > >                                 :pylint (:enabled :json-false)))
>  > >               :gopls (:usePlaceholders t))))))
>  > 
>  > This is more or less obvious, if you know how dir-local variables work.
> 
> Many people don't, judging from a substantial amount of interactions on this topic.
> 
>  > So I would suggest mentioning a different configuration method:
>  > 
>  > Alternatively, you can set a default workspace configuration globally by
>  > adding the following to your init file:
>  > 
>  >        (setq-default
>  >          eglot-workspace-configuration
>  >          '(:pylsp (:plugins (:jedi_completion (:include_params t
>  >                                                :fuzzy t)
>  >                              :pylint (:enabled :json-false)))
>  >            :gopls (:usePlaceholders t))
> 
> This is purposedly not mentioned because it is not recommended and confusing. Workspace settings are
> project-specific by definition. Your idea probably works, but is better implemented as initializationOptions,
> command-line switches or other means of configuring the server independently of the workspace it is meant
> to operate on.
> 
>  > >    This is an equivalent setup which sets the value for all the
>  > > major-modes inside the project; Eglot will use for each server only the
>  > > section of the parameters intended for that server.
>  > 
>  > Again, this is not true.  Rather, each sever will presumably ignore any
>  > settings not under its own "namespace".
> 
> Yes, that is the correct idea.
> 
>  João, any comments?
> 
> See above. 

Thanks, I fixed the wording regarding sending of the settings.

> Also, I think this information should migrate to a separate sub-section, alongside a sub-section devoted to the
> "workspace folders" topic.

The eglot-workspace-configuration settings are an important part of
the Eglot customization, so I don't see why we should move that into a
separate section.  It sounds unnatural to me.

I consider this bug done, so I'm closing it.

Thanks for the feedback.


This bug report was last modified 2 years and 198 days ago.

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