feat: neovim plugins update

home-manager/modules/neovim/plugins/luasnip.nix

@@ -0,0 +1,41 @@
+{pkgs, ...}: {
+  programs.nixvim = {
+    plugins.luasnip = {
+      enable = true;
+      settings = {
+        enable_autosnippets = true;
+        store_selection_keys = "<Tab>";
+      };
+      fromVscode = [
+        {
+          lazyLoad = true;
+          paths = "${pkgs.vimPlugins.friendly-snippets}";
+        }
+      ];
+      fromLua = [{paths = [../snippets];}];
+    };
+    extraFiles = {
+      "personal/luasnip-helper-funcs.lua".text = ''
+        local M = {}
+
+        local ls = require("luasnip")
+        local sn = ls.snippet_node
+        local i = ls.insert_node
+
+        function M.get_ISO_8601_date()
+          return os.date("%Y-%m-%d")
+        end
+
+        function M.get_visual(args, parent)
+          if (#parent.snippet.env.LS_SELECT_RAW > 0) then
+            return sn(nil, i(1, parent.snippet.env.LS_SELECT_RAW))
+          else
+            return sn(nil, i(1, '''))
+          end
+        end
+
+        return M
+      '';
+    };
+  };
+}