No support for neovim / Coc

[beyarkay]

Bug Report

Current behavior

Currently, there's no way to get language server in neovim via Coc

Expected behavior

It would be amazing to have hints and language support in neovim via Coc

Environment

• Language Server version (commit hash): None applicable
• CLI version used (output of arduino-cli version): None applicable
• OS and platform: MacOS 12

[drank40]

It used to work flawlessy, this is a regression

[beyarkay]

@drank40 can you confirm the steps you used to you used to install it as a language server?

[drank40]

I followed https://github.com/neoclide/coc.nvim/wiki/Language-servers#[Arduino](https://github.com/neoclide/coc.nvim/wiki/Language-servers#Arduino)

I just added this lines to my coc-settings.json and it worked, but it appears to be broken now, since the language server closes the connection at every request

[drank40]

See

https://github.com/neoclide/coc.nvim/issues/3594#issuecomment-1046250743

[steprobe]

I am seeing the same thing on Ubuntu. Is this really an enhancement? Seems more like a bug, and as @drank40 points out a regression.

[atrosekta]

same here too, coc's logs says the server is repeatedly stopping as soon as it start ,same with nvim lsp, tho i can launch the server "by hand" without it stopping

[chmanie]

For me, using nvim-lsp, it does run for some time but then crashes intermittently. Are we talking about the same issue or is this different behavior?

[dbmzzo]

For me, using nvim-lsp, it does run for some time but then crashes intermittently.

This is the behavior I'm seeing as well, using nvim-lspconfig.

[beyarkay]

@per1234 @cmaglie is this issue likely to be fixed in the near future? Or alternatively, is the repository accepting PRs?

[per1234]

is the repository accepting PRs?

Yes. We have already received some high quality PRs which resulted in valuable contributions to the Arduino Language Server project.

One thing that should be noted is that the primary purpose of this project is to serve as the language server component of Arduino IDE 2.x. The use of the standardized language server protocol makes it a general purpose tool that can be used in other applications and it is very cool that people are already using it in such alternative applications. However, that use case will always be a lower priority for the project relative to the use in the development tools created by Arduino such as Arduino IDE 2.x.

[beyarkay]

So reading between the lines, support for non-arduino editors is not available, but the project is willing to accept (high quality) PRs if they add that support?

(I'll take silence to mean a yes)

[beyarkay]

Sorry I'm realising that comment could come across a little aggressive, which is not my intention at all. Just wanting to get a clear idea of the state of support for non-arduino features before I go and try fix the problem myself.

Thanks for the help!

[adamansky]

All what you need is a proper compile_commands.json in your sketch directory and CoC + cland installed with vim/neovim

Take look on my small utility project which brings me code completion for Arduino projects https://github.com/Softmotions/acdb

[attilastrba]

All what you need is a proper compile_commands.json in your sketch directory and CoC + cland installed with vim/neovim

Can you explain a bit more? I have a proper compile_commands.json still the server is crashing. I am using Neovim, arduino_cli v0.26.0 and compiled the language server from scratch. If I don't provide the arduino_cli path then is all ok. I am unable to get any log with the -log function.

Thank you

[adamansky]

still the server is crashing

Along with compler_commans.json in project root just use coc-clangd as a language server and associate .ini files with cpp

let g:coc_filetype_map = {
  \ 'ino': 'cpp',
  \ }

[attilastrba]

Thank you. You mean that I don't need the whole arduino-language-server stuff and just work with clangd?

[adamansky]

Sure!

Thank you. You mean that I don't need the whole arduino-language-server stuff and just work with clangd? — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you are subscribed to this thread.Message ID: @.***>

[per1234]

Closing a duplicate of the other issues we have about neovim/coc:

• https://github.com/arduino/arduino-language-server/issues/155
• https://github.com/arduino/arduino-language-server/issues/159
• https://github.com/arduino/arduino-language-server/issues/152
• https://github.com/arduino/arduino-language-server/issues/109
• https://github.com/arduino/arduino-language-server/issues/162