Getting ruff working in nvim

ZerataX · November 10, 2023, 11:52pm

I want to use my nvim config for both windows and nixos, which is why mason is included in there, but mason doesn’t seem to always work with nixos; at least not for binaries, which does ofc make sense.

I currently have my nvim config as a derivation and I call the init.lua from home-manager and add the necessary language servers:

github.com

zeratax/dotfiles/blob/f795f1c376ca1400f2633f09563c07c5dd10ffa0/programs/neovim/default.nix#L10-L21


      
          extraPackages = with pkgs; [
            # language servers
            unstable.ruff-lsp
            nodePackages.pyright
            lua-language-server
          
          
  # other dependencies
            gdb
          ];
          extraLuaConfig = ''
            dofile("${neovim-config}/init.lua")
          '';

and in my init.lua I check $NAME to make sure i am on nixos and not windows and based on that setup lspconfig.

github.com

zeratax/neovim-config/blob/f07665ec25911a0261320c857a6fd804847e33fc/init.lua#L592-L601


      
          if os.getenv('NAME') == 'nixos' then
            for server_name, _ in pairs(servers) do
                require('lspconfig')[server_name].setup {
                  capabilities = capabilities,
                  on_attach = on_attach,
                  settings = servers[server_name],
                  filetypes = (servers[server_name] or {}).filetypes,
                }
            end
          else

this seems to work so far for lua-ls and pyright, but even though I can’t see any errors for ruff under :LspInfo ruff doesn’t seem to do anything.

(Also would be generally glad about feedback to my nvim setup in nix)

ZerataX · November 11, 2023, 2:56am

the issue was a nix-shell I was in.

the current ruff-lsp version 0.0.42 from nixos-unstable is apparently not compatible with the ruff version that my nix-shell setup, which is 0.1.4.

the latest version is already merged to master ruff-lsp: 0.0.42 -> 0.0.45 by GaetanLepage · Pull Request #266606 · NixOS/nixpkgs · GitHub