add nvim-tree to flake

flake.nix

@@ -179,6 +179,7 @@
             ./modules/neovim/plugins/lsp.nix
             ./modules/neovim/plugins/completion.nix
             ./modules/neovim/plugins/toggleterm.nix
+            ./modules/neovim/plugins/tree.nix
             ./modules/colorscheme/gruvbox/neovim-gruvbox.nix
           ];
         };

modules/neovim/plugins/misc.nix

@@ -6,9 +6,12 @@
     pkgs.vimPlugins.vim-repeat # Better repeat using .
     pkgs.vimPlugins.comment-nvim # Smart comment commands
     pkgs.vimPlugins.impatient-nvim # Faster load times
+    pkgs.vimPlugins.glow-nvim # Markdown preview popup
+    pkgs.vimPlugins.nvim-colorizer-lua # Hex color previews
   ];
 
   setup.Comment = { };
+  setup.colorizer = { };
 
   vim.o.termguicolors = true; # Set to truecolor
   vim.o.hidden = true; # Don't unload buffers when leaving them

modules/neovim/plugins/tree.nix

@@ -0,0 +1,75 @@
+{ pkgs, dsl, ... }: {
+
+  plugins = [ pkgs.vimPlugins.nvim-tree-lua pkgs.vimPlugins.nvim-web-devicons ];
+
+  # Disable netrw eagerly
+  # https://github.com/kyazdani42/nvim-tree.lua/commit/fb8735e96cecf004fbefb086ce85371d003c5129
+  vim.g.loaded = 1;
+  vim.g.loaded_netrwPlugin = 1;
+
+  setup.nvim-tree = {
+    disable_netrw = true;
+    hijack_netrw = true;
+    update_focused_file = {
+      enable = true;
+      update_cwd = true;
+      ignore_list = { };
+    };
+    diagnostics = {
+      enable = true;
+      icons = {
+        hint = "";
+        info = "";
+        warning = "";
+        error = "";
+      };
+    };
+    renderer = {
+      icons = {
+        glyphs = {
+          git = {
+            unstaged = "~";
+            staged = "+";
+            unmerged = "";
+            renamed = "➜";
+            deleted = "";
+            untracked = "?";
+            ignored = "◌";
+          };
+        };
+      };
+    };
+    view = {
+      width = 30;
+      hide_root_folder = false;
+      side = "left";
+      mappings = {
+        custom_only = false;
+        list = [
+          {
+            key = [ "l" "<CR>" "o" ];
+            cb = dsl.rawLua
+              "require('nvim-tree.config').nvim_tree_callback('edit')";
+          }
+          {
+            key = "h";
+            cb = dsl.rawLua
+              "require('nvim-tree.config').nvim_tree_callback('close_node')";
+          }
+          {
+            key = "v";
+            cb = dsl.rawLua
+              "require('nvim-tree.config').nvim_tree_callback('vsplit')";
+          }
+        ];
+      };
+      number = false;
+      relativenumber = false;
+    };
+  };
+
+  lua = ''
+    vim.keymap.set("n", "<Leader>e", ":NvimTreeFindFileToggle<CR>", { silent = true })
+  '';
+
+}