GNU bug report logs - #79290
30.2; eglot-alternatives doesn't support re-use of same program with different subcommands

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Message #8 received at 79290 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Doug Davis <ddavis <at> ddavis.io>, João Távora
 <joaotavora <at> gmail.com>
Cc: 79290 <at> debbugs.gnu.org
Subject: Re: bug#79290: 30.2;
 eglot-alternatives doesn't support re-use of same program with
 different subcommands
Date: Sat, 23 Aug 2025 16:00:32 +0300

> From: Doug Davis <ddavis <at> ddavis.io>
> Date: Fri, 22 Aug 2025 10:37:38 -0500
> 
> When writing an `eglot-alternatives' that looks like this:
> 
>   (add-to-list 'eglot-server-programs
>                `(python-base-mode
>                  . ,(eglot-alternatives '(("basedpyright-langserver" "--stdio")
>                                           ("uv" "run" "pyright-langserver" "--stdio")
>                                           ("uv" "run" "ty" "server")
>                                           "jedi-language-server"
>                                           ("pyright-langserver" "--stdio")))))
> 
> an invocation of M-x eglot will fail to show the second instance of
> using uv in the resulting list that appears to be passed on to
> `completing-read'. (Notice the repeated use of `uv run`
> https://docs.astral.sh/uv/reference/cli/#uv-run)
> 
> more info: the benefit of using `uv run` unloads the burden of using
> emacs to property setup a virtual environment; uv automatically handles
> running the correct installation of the invoked subcommand.

João, any comments or suggestions?

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