Error in dotspacemacs/user-config: Symbol’s value as variable is void: eglot-server-programs

[cocodrino]

Hello...I'm trying to add eglot for elixir to my spacemacs config, following this tutorial
https://elixirforum.com/t/emacs-elixir-setup-configuration-wiki/19196

I add this to my user config

  (add-to-list
   'eglot-server-programs
   '(elixir-mode . ("sh" "/home/yo/Descargas/proj/elixir/elixir-ls/rel/language_server.sh")))
  )

that path exist and there is the file .sh

now when I restart I get this error

(Spacemacs) Error in dotspacemacs/user-config: Symbol’s value as variable is void: eglot-server-programs

do you know which could be the problem here?
thank you so much

[joaotavora]

If you have (package-install 'eglot) somewhere in your config file and that happens before the the (add-to-list...) line, then it should work.

You can also try (require 'eglot) before teh (add-to-list...) line.

Other than that, I'm afraid I'm not of great "spacemacs" help. I use regular Emacs.

[cocodrino]

thank you so much @joaotavora , now the error was gone but still doesnt works, I opened an elixir file, then run the "eglot" command, nothing happen (neither error nor log)...if I run eglot-reconnect I get

jsonrpc-error: "No current JSON-RPC connection", (jsonrpc-error-code . 32603), (jsonrpc-error-message . "No current JSON-RPC connection")

my eglot config is

  (add-to-list
   'eglot-server-programs
   '(elixir-mode  "/home/yo/Descargas/proj/elixir/elixir-ls/rel/language_server.sh"))
  )

is it the right way to save the lsp path???...thank you so much joao...

[cocodrino]

update:

I change the config to

  (add-to-list
   'eglot-server-programs
   '(elixir-mode . ("sh" "/home/yo/Descargas/proj/elixir/elixir-ls/rel/language_server.sh")))

but not works neither, then I run eglot-shutdown and eglot again and seems works!...not works the autocomplete but I suppose than I still need some configuration

[cocodrino]

update...thanks @joaotavora , seems that I didn't need any other config, after run company I get aucompletion and works pretty well 😄

but I don't get any warning with syntax error through flymake, I delete some function end keyword and I don't get any error...would be I missing some config?..thank you!

[cocodrino]

update...flymake seems work sometime, with small projects works great but with projects like phoenix based projects simply doesnt start...

I get this logs
Warning [flymake mix.exs]: Disabling backend flymake-proc-legacy-flymake because (error Can’t find a suitable init function)
Warning [flymake timer_channel.ex]: Disabling backend flymake-proc-legacy-flymake because (error Can’t find a suitable init function)
Warning [flymake timer_channel.ex]: Disabling backend flymake-proc-legacy-flymake because (error Can’t find a suitable init function)
Warning [flymake user_socket.ex]: Disabling backend flymake-proc-legacy-flymake because (error Can’t find a suitable init function)

not sure what these mean or if these logs are related to my issue...

[joaotavora]

not sure what these mean or if these logs are related to my issue...

They are not, don't worry about these.

[nicobao]

Hi!
Got similar errors in Spacemacs. Rather annoying. It indeed appears rather randomly after a startup.
Solution:
Do NOT use the package-install command in spacemacs.
Adding eglot in dotspacemacs-additional-packages is enough.
Add in your (defun dotspacemacs/user-config ():

  (require 'eglot)
  (add-to-list 'eglot-server-programs '(elixir-mode "/home/nicolas/elixir-ls/release/language_server.sh"))

(Don't forget to edit the path to your language_server script, and choose the one that corresponds to your OS: .bat for Windows for instance.)
You can also add after the require 'eglot instruction:
(add-hook 'elixir-mode-hook 'eglot-ensure)
to not have to type M-x eglot manually.

My full spacemacs config is here, in case you need more guidance:
https://github.com/NicoGim/setup/blob/master/spacemacs/.spacemacs

Note: I tried before putting the require block in (defun dotspacemacs/user-load () where it would logically fits, but it simply does not work for me.

[nicobao]

Hi, for info I left more information on how to use Eglot in Spacemacs in the Elixir forum:
https://elixirforum.com/t/emacs-elixir-setup-configuration-wiki/19196/172?u=nicogim
@joaotavora it may be useful to add the information in the Readme for future Spacemacs users
(It was rather difficult for me to get my head around that as I am still a newbie in Spacemacs and Emacs.)

[joaotavora]

Hi @nicogim. Thanks for you interest in Eglot. It only supports Emacs. I don't have time for more, sorry.

It may support Spacemacs because Spacemacs is probably Emacs with fancy dinner garments (sometimes you step on the fancy dress, end up with your head in the wedding cake, your nether regions exposed).

I don't know how it works and there's also doom emacs, guy next door emacs, etc etc. Maybe you can post your spacemacs recipe right here and I'll link to it from the README, but that's as far as I'd go in supporting Spacemacs.

[nicobao]

I understand, time is not infinitely extensible.

Spacemacs is widely used today and has a strong community of newbies that attract more newbies to the Emacs world. I think it's a good thing for the community and we should try to promote that.
Also, Spacemacs is 100% compatible with all Emacs packages. Same for Doom Emacs.

I can edit your README directly with appropriate information covering Spacemacs when necessary. Do you accept pull-requests? I know how to use eglot from Spacemacs, maybe someone else could one day add Doom Emacs related instructions.

[joaotavora]

I'd rather point to this issue than keep actual source (even if just README content) devoted to non-emacs.

Just post your info here, and then we'll make it discoverable.

And of course I do accept pull requests, just not for this :-)

[nicobao]

Instructions for Spacemacs

Package installation

eglot does not have a supported layer. package-install is not supported in Spacemacs (I mean yes but whenever you'll restart, the package will be deleted). In your .spacemacs file, add eglot in dotspacemacs-additional-packages.

Package configuration

Put all your eglot configuration in dotspacemacs/user-config:

(require 'eglot)
;; Your configuration goes AFTER the require statement. Example:
(add-hook 'elixir-mode-hook 'eglot-ensure)
(add-to-list 'eglot-server-programs '(elixir-mode "/path/to/language-server/language_server.sh"))

Note:
Be careful with language spacemacs layers. For example the elixir layer is only compatible with lsp-mode and alchemist at the moment. So you need to install elixir-mode directly in dotspacemacs-additional-packages instead.

[nicobao]

Indeed, I still have some issues finally...:(
"No jump handler was able to find this symbol. [8 times]". Maybe related to that issue, I don't know.
I can't use vim interactions like gd. Also flymake does not automatically show errors on my screen like before. I need to explicitely call eglot-help-at-point...