From: Niels Thykier <niels@thykier.net>
To: "João Távora" <joaotavora@gmail.com>, "Eli Zaretskii" <eliz@gnu.org>
Cc: 72088@debbugs.gnu.org
Subject: bug#72088: eglot: Segregates language servers in a way that hampers polyglot language servers
Date: Sun, 14 Jul 2024 11:36:34 +0200 [thread overview]
Message-ID: <e414cbdd-b9bc-43c6-aa10-42f15118faac@thykier.net> (raw)
In-Reply-To: <CALDnm52fNAg0f96KH9sdvYxdfxpH1WR3zD2eSjuFWHp9_FzCig@mail.gmail.com>
João Távora:
> On Sun, Jul 14, 2024, 05:37 Eli Zaretskii <eliz@gnu.org> wrote:
>
>> AFAIU, the OP tried to use the same LSP server for several languages,
>> or something like that.
>>
>
> Yes, but how? What are the major modes in question? What information was
> added to eglot-server-programs, if any?
Hi,
The `eglot-server-programs` are defined as:
```
(with-eval-after-load 'eglot
(add-to-list 'eglot-server-programs
'(debian-control-mode . ("debputy" "lsp" "server")))
(add-to-list 'eglot-server-programs
'(debian-changelog-mode . ("debputy" "lsp" "server")))
(add-to-list 'eglot-server-programs
'(debian-copyright-mode . ("debputy" "lsp" "server")))
(add-to-list 'eglot-server-programs
'(makefile-gmake-mode . ("debputy" "lsp" "server")))
(add-to-list 'eglot-server-programs
'(yaml-mode . ("debputy" "lsp" "server")))
(add-to-list 'eglot-server-programs
'(debian-autopkgtest-control-mode . ("debputy" "lsp"
"server")))
)
```
Concrete case I was debugging was a `debian/control` file
(`debian-control-mode`) + a `debian/rules` file (`makefile-qmake-mode`).
The "debian-X" modes is coming from
https://salsa.debian.org/emacsen-team/dpkg-dev-el. I did not remember
actively installing the `makefile-qmake-mode`, so I assume it is bundled
with emacs. The "yaml-mode" is elpa-yaml-mode
(https://github.com/yoshiki/yaml-mode).
Note: The `makefile-gmake-mode` and `yaml-mode` registrations would
ideally be restricted to specific file names (such as `debian/rules` and
`debian/debputy.manifest`). Mentioning it mostly for the context (I have
not looked into how to do that at an eglot level yet).
> Are the two different files in question in the same project?
Yes, as far as I can tell, eglot considers them to be in the same
project. Concretely, the files are both in a .git repo and eglot reports
the git root dir as a workspace folder to the server.
> The OP consistently conflates file type and
> major mode, which is not always true.
Apologies for that. The language server in question works with at least
4 distinct syntactical formats (YAML, make, the debian changelog format
plus 3 distinct deb822 files). You are correct that the 3 deb822 files
do have different major modes despite being the same file format at a
syntactical level.
Nevertheless, in the concrete case, the problem appears between two
distinct file formats *and* major-modes.
> A simple example of a LSP server that
> manages different files in (slightly) different major modes (as long as in
> the same project) is clangd. But there are a few others, I think. The
> docstring of eglot-server-programs should be studied.
>
> João
>
>>
>
I read through
https://www.gnu.org/software/emacs/manual/html_node/eglot/Setting-Up-LSP-Servers.html
and I do not see anything here that decides how to control whether one
or two instances per project will be spawned.
Best regards,
Niels
next prev parent reply other threads:[~2024-07-14 9:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-12 11:33 bug#72088: eglot: Segregates language servers in a way that hampers polyglot language servers Niels Thykier
2024-07-13 6:15 ` Eli Zaretskii
2024-07-13 16:29 ` João Távora
2024-07-14 4:37 ` Eli Zaretskii
2024-07-14 7:31 ` Niels Thykier
2024-07-14 8:01 ` João Távora
2024-07-14 9:36 ` Niels Thykier [this message]
2024-07-14 9:46 ` Niels Thykier
2024-07-14 10:30 ` Niels Thykier
2024-07-14 9:48 ` João Távora
2024-07-14 12:01 ` Niels Thykier
2024-07-14 13:21 ` João Távora
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