Coc.nvim, nvim, stuff

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21

the python mpls server has been merged so it possible to install and use coc just for configuration. I personally switched to the builtin lsp since the lua ecosystem is more approachable for me than node (on nixpkgs).

22

Do you mean the builtin lsp of neovim or something else? I thought that was only available for neovim version 5.0? Did you build this version yourself? Was it a lot of work to build it successfully?

I would like to test out the embedded lsp server, as I find coc.vim a bit bloated and wasn’t able to make it work for all the things I need.

23

I was referring to the master version of nvim (called 0.5 but unreleased yet).

You should be fine with the following in your overlay

  neovim-unwrapped = final.neovim-unwrapped.overrideAttrs (oldAttrs: {
	  name = "neovim";
	  version = "official-master";
      src = builtins.fetchGit {
        url = https://github.com/neovim/neovim.git;
        ref = "master";
      };
 
  });
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24

Hello!

I’ve just made a pull request to coc-python to make it use the python-language-server that’s in unstable nixpkgs right now.

https://github.com/neoclide/coc-python/pull/266

To use it right now, you can do

Plug 'irth/coc-python', {'branch': 'allow-changing-language-server-path', 'do': 'yarn install && yarn build'}

for vim-plug (or adapt that for your plugin management solution)

and then, in the coc-settings.json:

"python.autoUpdateLanguageServer": false,
"python.languageServerPath": "python-language-server"

Works like a charm :slight_smile:

3 Likes
25

Thanks for this code snippet regarding neovim nightly. Since I didn’t know much about overlays in nix I had to put it on hold, but now I finally was able to make it work. What I essentially did was to put this as my overlay.nix:

cat ~/.config/nixpkgs/overlays.nix

code:

[ (self: super:
{
  neovim-unwrapped = super.neovim-unwrapped.overrideAttrs (oldAttrs: rec {
    name = "neovim-nightly";
    version = "0.5-nightly";
    src = self.fetchurl {
      url = "https://github.com/neovim/neovim/archive/master.zip";
      sha256 = "01ad4sfavyhjaylzbqm0ynrngl38bkxai37yn16hryslk5rsb1jg";
    };

    nativeBuildInputs = with self.pkgs; [ unzip cmake pkgconfig gettext ];

  });

}) ]

then inside a clone of nixpkgs, I did nix-env -f "." -iA neovim, and it worked.

I think the nativeBuildInputs, could have been done like this:

nativeBuildInputs = with self.pkgs; [ unzip ] ++ super.nativeBuildInputs;

But then I get this failure:

error: attribute 'nativeBuildInputs' missing

I must say that overlays are really hard to get right and the documentation is a bit convoluted.

For anyone mastering overlays, it would be would nice to get feedback on this approach :slight_smile:

I guess that putting them at the system level like in this example is a better approach, maybe I’ll try that next:

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