Add completion and basic lsp config to nixvim

flake.lock

@@ -46,11 +46,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1749154018,
-        "narHash": "sha256-gjN3j7joRvT3a8Zgcylnd4NFsnXeDBumqiu4HmY1RIg=",
+        "lastModified": 1751810233,
+        "narHash": "sha256-kllkNbIqQi3VplgTMeGzuh1t8Gk8TauvkTRt93Km+tQ=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "7aae0ee71a17b19708b93b3ed448a1a0952bf111",
+        "rev": "9b0873b46c9f9e4b7aa01eb634952c206af53068",
         "type": "github"
       },
       "original": {
@@ -90,11 +90,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1750400657,
-        "narHash": "sha256-3vkjFnxCOP6vm5Pm13wC/Zy6/VYgei/I/2DWgW4RFeA=",
+        "lastModified": 1751741127,
+        "narHash": "sha256-t75Shs76NgxjZSgvvZZ9qOmz5zuBE8buUaYD28BMTxg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "b2485d56967598da068b5a6946dadda8bfcbcd37",
+        "rev": "29e290002bfff26af1db6f64d070698019460302",
         "type": "github"
       },
       "original": {
@@ -106,11 +106,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1750365781,
-        "narHash": "sha256-XE/lFNhz5lsriMm/yjXkvSZz5DfvKJLUjsS6pP8EC50=",
+        "lastModified": 1751637120,
+        "narHash": "sha256-xVNy/XopSfIG9c46nRmPaKfH1Gn/56vQ8++xWA8itO4=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "08f22084e6085d19bcfb4be30d1ca76ecb96fe54",
+        "rev": "5c724ed1388e53cc231ed98330a60eb2f7be4be3",
         "type": "github"
       },
       "original": {
@@ -130,11 +130,11 @@
         "systems": "systems_2"
       },
       "locked": {
-        "lastModified": 1750149910,
-        "narHash": "sha256-M0WNjAy2FCHJAb1hEp+J2gnMk707K5/iTA24amEu/s8=",
+        "lastModified": 1751479430,
+        "narHash": "sha256-ub1Pj+oSrt2bE1tzTRYEwzCFewsc9F7X7RIJooM94MU=",
         "owner": "nix-community",
         "repo": "nixvim",
-        "rev": "1252966779a5632a3cd5238e442d55a1d2f56660",
+        "rev": "13cc4d84572c5f5d469a3a3454fa2028f78a3137",
         "type": "github"
       },
       "original": {

modules/home-manager/nixvim/plugins/cmp.nix

@@ -0,0 +1,66 @@
+{
+  programs.nixvim = {
+    opts.completeopt = ["menu" "menuone" "noselect"];
+
+    plugins = {
+      luasnip.enable = true;
+      cmp-nvim-lsp.enable = true;
+      cmp-nvim-lsp-signature-help.enable = true;
+
+      lspkind = {
+        enable = true;
+
+        cmp = {
+          enable = true;
+          menu = {
+            nvim_lsp = "[LSP]";
+            nvim_lua = "[api]";
+            path = "[path]";
+            luasnip = "[snip]";
+            buffer = "[buffer]";
+          };
+        };
+
+        extraOptions = {
+          mode = "symbol";
+        };
+      };
+
+      cmp = {
+        enable = true;
+        autoEnableSources = true;
+
+        settings = {
+          snippet.expand = "function(args) require('luasnip').lsp_expand(args.body) end";
+
+          mapping = {
+            "<C-p>" = "cmp.mapping.select_prev_item()";
+            "<C-n>" = "cmp.mapping.select_next_item()";
+            "<C-b>" = "cmp.mapping.scroll_docs(-4)";
+            "<C-f>" = "cmp.mapping.scroll_docs(4)";
+            "<C-e>" = "cmp.mapping.close()";
+            "<C-y>" = "cmp.mapping.confirm({ select = true })";
+            "<CR>" = "cmp.mapping.confirm({ select = true })";
+            "<C-Space>" = "cmp.mapping.complete()";
+            "<C-l>" = ''cmp.mapping(function()
+              if luasnip.expand_or_locally_jumpable() then
+                luasnip.expand_or_jump()
+              end
+            end, {'i', 's'})'';
+            "<C-h>" = ''cmp.mapping(function()
+              if luasnip.locally_jumpable(-1) then
+                luasnip.jump(-1)
+              end
+            end, {'i', 's'})'';
+          };
+
+          sources = [
+            { name = "nvim_lsp"; }
+            { name = "luasnip"; }
+            { name = "path"; }
+          ];
+        };
+      };
+    };
+  };
+}

modules/home-manager/nixvim/plugins/default.nix

@@ -1,5 +1,7 @@
 { pkgs, ... }: {
   imports = [
+    ./cmp.nix
+    ./lsp.nix
     ./treesitter.nix
     ./lualine.nix
     ./nvim-autopairs.nix

modules/home-manager/nixvim/plugins/lsp.nix

@@ -0,0 +1,31 @@
+{
+  programs.nixvim = {
+    plugins = {
+      lsp = {
+        enable = true;
+
+        keymaps = {
+          silent = true;
+          lspBuf = {
+            "gd" = "definition";
+            "gD" = "declaration";
+            "gr" = "references";
+            "gI" = "implementation";
+            "<leader>ca" = "code_action";
+            "<leader>D" = "type_definition";
+            "<leader>rn" = "rename";
+          };
+        };
+
+        servers = {
+          lua_ls.enable = true;
+          nil_ls.enable = true;
+          pyright.enable = true;
+        };
+      };
+      lsp-format = {
+        enable = true;
+      };
+    };
+  };
+}