fix commandline cmp select on tab

modules/nixvim/options.nix

@@ -77,6 +77,7 @@ in {
       icu74
       alejandra
       vscode-extensions.ms-vscode.cpptools
+      nixpkgs-fmt
     ];
     extraPlugins = with pkgs.vimPlugins; [
       {

modules/nixvim/plugins/lsp/cmp.nix

@@ -201,6 +201,14 @@
           ];
         };
         ":" = {
+          completion.completeopt = "menu,menuone,noselect";
+          mapping = {
+            __raw = ''
+              cmp.mapping.preset.cmdline({
+                ["<CR>"] = cmp.mapping.confirm { select = true },
+              })
+            '';
+          };
           sources = [
             {
               name = "path";
@@ -212,7 +220,7 @@
         };
         "?" = {
           mapping = {
-            completion.completeopt = "menuone,noselect";
+            completion.completeopt = "menu,menuone,noselect";
             __raw = "cmp.mapping.preset.cmdline({
               ['<C-b>'] = cmp.mapping.scroll_docs(-4),
               ['<C-f>'] = cmp.mapping.scroll_docs(4),

modules/nixvim/plugins/trouble.nix

@@ -1,9 +1,31 @@
 {
-  plugins.trouble.enable = true;
+  plugins.trouble = {
+    enable = true;
+    settings = {
+      modes = {
+        workspace-diagnostics = {
+          mode = "diagnostics";
+          filter = [{
+            any = [
+              { buf = 0; }
+              {
+                __raw =
+                  ''
+                    function(item)
+                      return item.filename:find((vim.loop or vim.uv).cwd(), 1, true)
+                    end
+                  '';
+              }
+            ];
+          }];
+        };
+      };
+    };
+  };
   keymaps = [
     {
       key = "<leader>xx";
-      action = "<cmd>Trouble diagnostics toggle<CR>";
+      action = "<cmd>Trouble workspace-diagnostics toggle<CR>";
       options = {
         silent = true;
       };