feat(neovim): separate config in another repository

This caused issues when using lua_ls where the symlinks
created by home-manager were not followed correctly.

And this is, more generally, more stable and easily maintanable.

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "applications/neovim/config"]
+	path = applications/neovim/config
+	url = [email protected]:d4ilyrun/nvim-config.git

.pre-commit-config.yaml

@@ -6,3 +6,8 @@ repos:
     hooks:
       - id: shellcheck
       - id: apply-nixpkgs-fmt
+
+  - repo: "https://github.com/JohnnyMorganz/StyLua"
+    rev: "v0.17.1"
+    hooks:
+      - id: stylua-system

.stylua.toml

@@ -0,0 +1,6 @@
+column_width = 120
+line_endings = "Unix"
+indent_type = "Spaces"
+indent_width = 2
+quote_style = "AutoPreferSingle"
+call_parentheses = "Always"

applications/neovim/default.nix

@@ -1,142 +1,22 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
-let
-  vim_folder = "${config.dotfiles.folders.applications}/neovim";
-  vim_plugins = "${vim_folder}/plugins";
-  vim_lua = "${vim_folder}/lua";
-  vim_themes = "${vim_folder}/themes";
-
-  # installs a vim plugin from git with a given tag / branch
-  pluginGit = ref: repo: pkgs.vimUtils.buildVimPluginFrom2Nix {
-    pname = "${lib.strings.sanitizeDerivationName repo}";
-    version = ref;
-    src = builtins.fetchGit {
-      url = "https://github.com/${repo}.git";
-      ref = ref;
-    };
-  };
-
-  # always installs latest version
-  plugin = pluginGit "HEAD";
-
-  pluginWithName = name: repo: pkgs.vimUtils.buildVimPluginFrom2Nix {
-    pname = name;
-    version = "HEAD";
-    src = builtins.fetchGit {
-      url = "https://github.com/${repo}.git";
-      ref = "HEAD";
-    };
-  };
-
-in
 {
-  # Packages needed for neovim to work
-  home.packages = with pkgs; [
-    nodePackages.npm
-    nodePackages.pyright
-    nodePackages.typescript-language-server
-    sumneko-lua-language-server
-    ripgrep
-    glow
-    nil
-  ];
-
   programs.neovim = {
     enable = true;
     vimAlias = true;
     viAlias = true;
+    vimdiffAlias = true;
+    withNodeJs = true;
 
-    extraConfig = ''
-      lua home = "${config.dotfiles.homeDirectory}"
-      lua path = "${vim_lua}"
-      let g:vim_plugins_path="${vim_plugins}"
-
-      " You might have to force true color when using regular vim inside tmux as the
-      " colorscheme can appear to be grayscale with "termguicolors" option enabled.
-      if !has('gui_running') && &term =~ '^\%(screen\|tmux\)'
-        let &t_8f = "\<Esc>[38;2;%lu;%lu;%lum"
-        let &t_8b = "\<Esc>[48;2;%lu;%lu;%lum"
-      endif
-
-      set termguicolors
-
-      source ${vim_themes}/${config.dotfiles.theme.name}.vim
-
-      source ${vim_folder}/init.vim
-      source ${vim_plugins}/plugins.vim
-      lua dofile("${vim_lua}/init.lua")
-    '';
-
-    plugins = with pkgs.vimPlugins; [
-      # Navigation
-      (plugin "max397574/which-key.nvim")
-      (plugin "airblade/vim-rooter")
-      (plugin "startup-nvim/startup.nvim")
-      (plugin "nvim-telescope/telescope.nvim")
-      (plugin "kyazdani42/nvim-tree.lua")
-      (plugin "akinsho/bufferline.nvim")
-      (plugin "moll/vim-bbye")
-      (plugin "folke/trouble.nvim")
-      (plugin "folke/todo-comments.nvim")
-      (plugin "BurntSushi/ripgrep")
-
-      # Eyecandy
-      nvim-treesitter
-      nvim-web-devicons
-      # (plugin "glepnir/galaxyline.nvim")
-      (plugin "nvim-lualine/lualine.nvim")
-      (plugin "glepnir/galaxyline.nvim")
-      (plugin "norcalli/nvim-colorizer.lua") # color-previewer
-      (plugin "lukas-reineke/indent-blankline.nvim")
-      (plugin "smithbm2316/centerpad.nvim")
-      (plugin "rcarriga/nvim-notify")
-      (plugin "j-hui/fidget.nvim")
-
-      # LSP
-      (plugin "neovim/nvim-lspconfig")
-      (plugin "williamboman/nvim-lsp-installer")
-      (plugin "williamboman/mason-lspconfig.nvim")
-      (plugin "williamboman/mason.nvim")
-      (plugin "ojroques/nvim-lspfuzzy")
-
-      # CMP
-      (plugin "hrsh7th/nvim-cmp")
-      (plugin "hrsh7th/cmp-nvim-lsp")
-      (plugin "hrsh7th/cmp-cmdline")
-      (plugin "hrsh7th/cmp-buffer")
-      (plugin "hrsh7th/cmp-path")
-      (plugin "hrsh7th/cmp-nvim-lsp-signature-help")
-
-      # Snippets
-      (plugin "L3MON4D3/LuaSnip")
-      (plugin "saadparwaiz1/cmp_luasnip")
-      (plugin "tami5/lspsaga.nvim")
-      (plugin "mortepau/codicons.nvim")
-      (plugin "onsails/lspkind-nvim")
-
-      # Dev
-      (plugin "nvim-lua/plenary.nvim")
-      (plugin "jose-elias-alvarez/null-ls.nvim")
-      (plugin "mfussenegger/nvim-dap")
-      (plugin "rcarriga/nvim-dap-ui")
-      (plugin "nvim-telescope/telescope-dap.nvim")
-      (plugin "Shatur/neovim-cmake")
-      # (plugin "danymat/neogen")
-      (plugin "lewis6991/gitsigns.nvim")
-      (plugin "nvim-neotest/neotest")
-      (plugin "alfaix/neotest-gtest")
-      (plugin "antoinemadec/FixCursorHold.nvim")
-      (plugin "GnikDroy/projections.nvim")
-      (plugin "sindrets/diffview.nvim")
-
-      # Media files
-      (plugin "marioortizmanero/adoc-pdf-live.nvim") # PDF viewer
-      glow-nvim
-
-      # Themes
-      (pluginWithName "catpuccin" "catppuccin/nvim")
-      (plugin "joshdick/onedark.vim")
-      (plugin "tiagovla/tokyodark.nvim")
+    extraPackages = with pkgs; [
+      ripgrep # for telescope/fzf
     ];
   };
+
+  # LSP
+  home.packages = with pkgs; [
+    nil
+    sumneko-lua-language-server
+    nodePackages.pyright
+  ];
 }