nixpkgs/neovim: fix typescript plugin unsetting omnifunc

.config/nixpkgs/neovim/neovim.nix

@@ -9,6 +9,7 @@
 , node-lsp
 , vimPlugins
 , fetchFromGitHub
+, fetchpatch
 , withPlayground ? false
 , withLuadev ? false
 }:
@@ -86,7 +87,7 @@ let
     ]);
 
   pinnedPlugins = import ./plugins {
-    inherit buildNeovimPlugin fetchFromGitHub;
+    inherit buildNeovimPlugin fetchFromGitHub fetchpatch;
   };
 
   plugins = (lib.attrValues pinnedPlugins)

.config/nixpkgs/neovim/plugins/default.nix

@@ -1,4 +1,4 @@
-{ fetchFromGitHub, buildNeovimPlugin }:
+{ fetchFromGitHub, fetchpatch, buildNeovimPlugin }:
 let
   plugins = builtins.fromJSON (builtins.readFile ./sources.json);
 
@@ -8,8 +8,15 @@ let
     };
 
     "leafgarland/typescript-vim" = {
-      # make compiler build entire project
-      patches = [ ./typescript-vim-compiler.patch ];
+      patches = [
+        # make compiler build entire project
+        ./typescript-vim-compiler.patch
+        # prevent unsetting omnifunc
+        (fetchpatch {
+          url = "https://github.com/leafgarland/typescript-vim/pull/202.patch";
+          sha256 = "sha256-xHgOdoA8qBesCgNk9J8dINSgSyXj4ymmfcJEm+qWs54";
+        })
+      ];
     };
 
     "nvim-telescope/telescope-fzf-native.nvim" = {

.config/nixpkgs/neovim/plugins/typescript-vim-omnifunc.patch

@@ -0,0 +1,13 @@
+diff --git a/ftplugin/typescript.vim b/ftplugin/typescript.vim
+index da4b1e8..db6fb9d 100644
+--- a/ftplugin/typescript.vim
++++ b/ftplugin/typescript.vim
+@@ -15,7 +15,7 @@ setlocal formatoptions-=t formatoptions+=croql
+ 
+ setlocal suffixesadd+=.ts,.tsx
+ 
+-let b:undo_ftplugin = "setl fo< ofu< com< cms<"
++let b:undo_ftplugin = "setl fo< com< cms<"
+ 
+ let &cpo = s:cpo_save
+ unlet s:cpo_save