New wrapDo helper and wrapping nvim-cmp in do ... end (#53)

* added wrapDo helper

* nvim-cmp: wrapped with do

Co-authored-by: Pedro Alves <pta2002@users.noreply.github.com>

plugins/completion/nvim-cmp/default.nix

@@ -394,7 +394,7 @@ in
     mkIf cfg.enable {
       extraPlugins = [ pkgs.vimPlugins.nvim-cmp ];
 
-      extraConfigLua = ''
+      extraConfigLua = helpers.wrapDo ''
         local cmp = require('cmp')
         cmp.setup(${helpers.toLuaObject options})
       '';

plugins/helpers.nix

@@ -106,6 +106,12 @@ rec {
 
   mkRaw = r: { __raw = r; };
 
+  wrapDo = string: ''
+  do
+    ${string}
+  end
+  '';
+
   rawType = types.submodule {
     options = {
       __raw = mkOption {