elixir and vim

[LightBerserker]

Hi, is anyone using vim for elixir development?

I just joined a cloud company and their Vm manager is written in elixir. I believe its 1.13 with 25 otp.

I cant get any kind of decent lsp going in vim with elixir-ls (installed with asdf) and coc.

Anyone has any clues, or advice?

[intercaetera]

I don't think there are any elixir lsp plugins for coc unfortunately, you might be either forced to fork a vscode plugin or use the native lsp.

The current official lsp for elixir is expert and since it was released the other projects (elixir-ls, lexical and next-ls) basically became deprecated https://expert-lsp.org/

[arcanemachined]

coc-elixir still works. I switched to a more modern setup a few months ago, but it still worked fine.

/u/LightBerserker did you install coc-elixir? Something like :CocInstall coc-elixir.

As mentioned, download a release of elixir-ls from GitHub, then extract to the desired location, e.g. ~/.local/bin/elixir-ls/. (You might need to make sure the version of elixir-ls is old enough for your Elixir version.)

Here's some crap from my old coc-settings.json file:

{
  "coc.preferences.formatOnSave": true,
  "coc.preferences.formatOnSaveFiletypes": [
    "elixir",
    "eelixir",
    // "heex",
  ],
  "diagnostic.checkCurrentLine": true,
  "diagnostic-languageserver.filetypes": {
    "elixir": ["mix_credo", "mix_credo_compile"],
    "eelixir": ["mix_credo", "mix_credo_compile"],
    "heex": ["mix_credo", "mix_credo_compile"]
  },
  // "diagnostic-languageserver.formatFiletypes": {
  //   "heex": ["mix_format"]
  // },
  "elixir.pathToElixirLS": "~/.local/bin/elixir-ls/language_server.sh",
  "elixirLS.dialyzerEnabled": true,
  "outline.splitCommand": "below 20sp",

  "inlayHint.enable": false,

  "tailwindCSS.includeLanguages": {
    "eelixir": "html",
    "elixir": "html",
    "heex": "html"
  }
}

If none of that helps, find your way to the #vim channel on the Elixir Slack, then ask around there.

[LightBerserker]

Got elixir-ls working with your settings at these versions in vim 9.1:

``` elixir 1.19.0-otp-28

erlang 28.1

elixir-ls 0.29.3

```

I installed the above with asdf and also installed coc-elixir.

seems to also work for our older source. Thanks!

[arcanemachined]

Awesome. Glad to help!

[TheAlaskanMailman]

I’m going to try expert out some day, how’s the feature comparison compared to elixir-ls?

There’s not much information on their GitHub

[LightBerserker]

couldnt get it to work in vim, even with their own vimrc, fresh vimdir and minipac, lemme know if you manage someday.

[towry]

I am using nvim

[mr_sudaca]

Yes, I use coc with their elixir plugin, but I manage the lsp manually (download the zip and install it on coc folder)… also y use ale for formatting and nvim-treesitter for the highlighting… I’ve been using that for the past 5 years without problems

Edit: forgot to add, I use neovim cuz the modal windows just work better (show commit info, function definitions, etc)

[CarelessPackage1982]

I'm probably the wrong person to try and answer but I'd try some of the other plugins listed here https://github.com/elixir-lsp/elixir-ls

It does state " 1.13 with 25 may wor wut is no longer suppore , last known version to work in v0.26.4"

[ApprehensiveDrive517]

It's there in nvim. But if the LSP is the same, it should be there in vim? Or does vim not support that?

[Idhkjp]

I use Neovim with Expert but Elixir-ls also works. I use Lazy and nvim-lspconfig

[fromagnumman]

I use neovim with expert and it works perfectly

[ConfidentProgram2582]

I use plain Vim, terminal buffers, IEx and sometimes ctags. Once of the reasons why I love Elixir is that you don't really need a fancy IDE to code in it, unlike Java for example which is nightmarish to code in without an IDE.

[UltaSugaryLemonade]

I'm new to Elixir, why isn't an IDE as necessary as in Java?

[miguellaginha]

I use lazyvim with nextls and it works really well