From 5e12b830c84ec62cea9f3c2b8e731a140a8ea686 Mon Sep 17 00:00:00 2001
From: Dmitriy Pleshevskiy <dmitriy@pleshevski.ru>
Date: Mon, 29 Apr 2024 16:33:51 +0300
Subject: [PATCH] modules/keymap: dedup mode list before folding

---
 modules/vim/keymap.nix | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/modules/vim/keymap.nix b/modules/vim/keymap.nix
index 8f29e89..01cc8eb 100644
--- a/modules/vim/keymap.nix
+++ b/modules/vim/keymap.nix
@@ -22,15 +22,15 @@ let cfg = config.vim.keymap; in
         ({ mode, lhs, rhs, buffer, ... }:
           let
             sourceModes = if builtins.isList mode then mode else [ mode ];
-            unwrappedModes = lib.flatten (lib.flip map sourceModes (m:
+            unwrappedModes = lib.unique (lib.flatten (lib.flip map sourceModes (m:
               if m == "" then [ m "n" "x" "s" "o" ]
               else if m == "!" then [ m "i" "c" ]
               else if m == "v" then [ m "x" "s" ]
               else if m == "l" then [ m "i" "c" "l" ]
               else m
-            ));
+            )));
 
-            buf = if buffer == null then "" else buffer;
+            buf = lib.optionalString (buffer != null) buffer;
           in
           lib.foldl lib.recursiveUpdate { }
             (lib.flip map unwrappedModes (m: {