GNU bug report logs - #64159
Feature suggestion for eglot: preferred LSP servers

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From: Jeremy Bryant <jb <at> jeremybryant.net>
To: João Távora <joaotavora <at> gmail.com>
Cc: 64159 <at> debbugs.gnu.org
Subject: bug#64159: Feature suggestion for eglot: preferred LSP servers
Date: Sun, 18 Jun 2023 23:20:06 +0100

Thanks João for the clarifications on the purpose of eglot, and the suggestion to use C-u M-x
eglot, I will investigate.

My feature suggestion was from a more basic user-level selection of LSP
servers.


PS: In the meantime, I have worked out how to use C-x 8 to insert Unicode for proper name
spelling of João, thank you for clarification.


João Távora <joaotavora <at> gmail.com> writes:

> On Sun, Jun 18, 2023 at 5:16 PM Jeremy Bryant <jb <at> jeremybryant.net> wrote:
>>
>>
>> (Expanding an initial discussion with Joao to the proper email list)
>>
>> Hi,
>>
>> The variable eglot-server-programs includes suitable LSP servers per
>> major mode.  Would it be useful for users to extend this to a preference by order?
>>
>> For example, for example eglot has 2 supported programs for TeX:
>>                                 ((tex-mode context-mode texinfo-mode bibtex-mode)
>>                                   . ,(eglot-alternatives '("digestif" "texlab")))
>>
>> Is one preferred in terms of compatibility with eglot or other
>> functionality?  This could be implemented with a specific order.
>
> Just a preamble: Eglot is an LSP client.  The (great) idea behind
> LSP is for every client to be compatible with every server.  That's
> not always  respected by client/server implementers (the most common
> case is servers who assume that VSCode, made by the company who also
> makes the standard, is the de facto standard).  But in most cases
> it _is_ respected is, and certainly Eglot as a Client strives to
> achieve that.
>
> So, in my view, it makes little sense to talk about "servers supported
> or compatible with eglot" .  Even eglot-server-programs itself is a bit
> of an anti-LSP thing, though admittedly it's a very useful one in some
> cases.  It's just a list of server invocations that Emacs can guess
> for the current major mode.   I almost always start my daily clangd
> sessions with C-u M-x eglot, for example, and then pass one or other command
> line argument to the prompt, referring to history.  I do this once
> or twice a day at most, and barely lose any time.  So eglot-server-programs
> is almost useless to me.  I try experimental servers all the time, and
> point Eglot to it with the same method.
>
> So the order of the alternatives isn't really important, or thought
> over.  At least by me it isn't.
>
> Hope this helps,
>
> João (with a tilde on the a for a nice round nasal ão)

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