this post was submitted on 24 Nov 2023
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Using local language server for remote files (alien.top)
submitted 11 months ago by Winter_Fall8260@alien.top to c/emacs
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Hi, I’ve been banging my head against something and I figured I’d ask for help.

I open files over tramp and use a remote login machine to do that. Said login machine is shared by many people and thus I can’t run a language server on it. I’d like to use eglot but don’t want to run the language server on it.

I’ve been trying to either run the language server on a computer machine (another remote one) or on my local Mac (Mac would be preferable).

Has anyone managed to point a language server running on a local Mac to files over ssh?

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[–] Winter_Fall8260@alien.top 1 points 11 months ago (2 children)

Yes eMacs is running on my local laptop.

If I try running eglot on a local file (on my laptop) all is well - it immediately finds the language server binary and runs it fine.

However, if attempt it on a remote file (opened over tramp) it says it can’t find the binary and prompts me to point it at it. I could do that, but then the language server would start on that same machine and that’s a no go since it’s a shared login machine.

So ideally I’d be able to tell it to use a language server running on my laptop but have been unable to get that to happen.

[–] 7890yuiop@alien.top 1 points 11 months ago

However, if attempt it on a remote file (opened over tramp) it says it can’t find the binary and prompts me to point it at it. I could do that, but then the language server would start on that same machine and that’s a no go since it’s a shared login machine.

How would the local language server inspect a file which is on some other machine?

You should start by establishing how that is going to work, and add that information to your question.

[–] TistelTech@alien.top 1 points 11 months ago

oh, that sucks. I did not understand the LSP's requirements:

https://emacs.stackexchange.com/questions/76311/can-i-use-a-local-language-server-for-remote-files

the language servers are pretty simple C/C++ programs. If you have access to gcc/g++ on the target machine, you could try compile/running them in the BG just as a command line prgram. you would not need to `sudo blah install` anything.