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Re: eglot and tramp

From: Brian Cully
Subject: Re: eglot and tramp
Date: Wed, 16 Nov 2022 07:29:16 -0500

Michael Albinus <michael.albinus@gmx.de> writes:

> Great! Since you are a regular eglot+Tramp user, could I ask you for a
> test?
> I assume you are using Tramp with ssh or scp. If you also don't use a
> password (for example via public key authentication), please try the
> following setting:
> --8<---------------cut here---------------start------------->8---
> (add-to-list 'tramp-connection-properties
>              (list (regexp-quote "/ssh:user@host:")
>                    "direct-async-process" t))
> --8<---------------cut here---------------end--------------->8---
> "/ssh:user@host:" must be adapted of course, and you must set this prior
> opening a connection to this remote path. This should give you better
> performance when starting the language server.

I use eglot+Tramp with various containers (nspawn, docker, podman),
which don't support the ‘tramp-direct-async’ flag, so I'm not sure how
helpful this testing would be.

I know we've spoken about that flag before, and I came away from those
discussions with the impression that those methods should not support
direct-async, but I'm unsure why. I have only skimmed the relevant code,
but it seems like there shouldn't be a problem with supporting
direct-async on the container methods. Is there some danger I should be
aware of?

If it's safe enough, I'd be happy to flag support for direct-async in
the methods and do the above test.



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