neovim: add some nix snippets

flake.lock

@@ -255,11 +255,11 @@
     },
     "nix2lua": {
       "locked": {
-        "lastModified": 1715344083,
+        "lastModified": 1716215210,
-        "narHash": "sha256-7UehRa7etk0oqSH4ty0nUsmeO3Z+Y1dbKwrGSlgaMIc=",
+        "narHash": "sha256-GjwpjhNGdrGH0dElAvcKSFY3nbRw4JYOKtKMmhMsEWw=",
         "ref": "refs/heads/main",
-        "rev": "6a096bf9a22903c92f0065ba3316d3821ddd8b72",
+        "rev": "4d3ae67617c2c1301a1a90601e20e15614d20319",
-        "revCount": 41,
+        "revCount": 52,
         "type": "git",
         "url": "https://git.pleshevski.ru/mynix/nix2lua"
       },
@@ -279,11 +279,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1715970214,
+        "lastModified": 1716215872,
-        "narHash": "sha256-x9bHVtPmk5BfGmVLfUhFcpVJdQZ5SstBRFy19WBp/W0=",
+        "narHash": "sha256-zjy9raJUx+14DVMDuVfZYbBOPcHgMBxk2vt+rmNn7uk=",
         "ref": "refs/heads/main",
-        "rev": "51fcb9d9e41d9ac540a9840081fdce328e2117e0",
+        "rev": "463a4f2d43033dc75d4e84522d0ff670001622bb",
-        "revCount": 73,
+        "revCount": 80,
         "type": "git",
         "url": "https://git.pleshevski.ru/pleshevskiy/nixeovim"
       },

neovim/dev.nix

@@ -18,6 +18,7 @@ in
 {
   imports = [
     "${modulesPath}/profiles/recommended.nix"
+    ./snippets.nix
   ];
 
   vim.opt = {

neovim/snippets.nix

@@ -0,0 +1,49 @@
+{ ... }:
+
+let
+  t = text: { inherit text; };
+  i = jump: text: { inherit jump text; };
+  c = jump: nodes: { inherit jump nodes; };
+in
+{
+  plugins.snippet.luasnip.snippetGroups = [
+    {
+      filetype = "nix";
+      snippets = {
+        "if".nodes = [
+          (t "if ")
+          (i 1 "condition")
+          (t " then ")
+          (i 2 "trueBody")
+          (t " else ")
+          (i 3 "falseBody")
+          (t ";")
+        ];
+        "var".nodes = [
+          (i 1 "name")
+          (t " = ")
+          (c 2 [
+            (i null "value")
+            {
+              snippet.nodes = [
+                { insert = 1; }
+                (t "[")
+                { insert = 2; }
+                (t "]")
+              ];
+            }
+            {
+              snippet.nodes = [
+                { insert = 1; }
+                (t "{")
+                { insert = 2; }
+                (t "}")
+              ];
+            }
+          ])
+          (t ";")
+        ];
+      };
+    }
+  ];
+}