From 1d8df9d31040d0654d4553a0b21e8eda528e5ab3 Mon Sep 17 00:00:00 2001
From: Ivar Fatland <fatland99@hotmail.com>
Date: Thu, 9 Oct 2025 18:42:16 +0200
Subject: [PATCH] add persistent undo functionality to both neovim and vim

---
 nvim/.config/nvim/init.lua | 6 ++++++
 vim/.vimrc                 | 7 +++++++
 2 files changed, 13 insertions(+)

diff --git a/nvim/.config/nvim/init.lua b/nvim/.config/nvim/init.lua
index 167d0e8..220866e 100644
--- a/nvim/.config/nvim/init.lua
+++ b/nvim/.config/nvim/init.lua
@@ -70,6 +70,12 @@ vim.cmd [[
     set errorformat^=[----]\ %f:%l:\ %m
 ]]
 
+vim.o.undofile = true
+vim.o.undodir = vim.fn.expand("~/.vim/neoundodir")
+if vim.fn.isdirectory(vim.o.undodir) == 0 then
+  vim.fn.mkdir(vim.o.undodir, "p")
+end
+
 vim.keymap.set('n', ',cf', function()
     local qf = vim.fn.getqflist()
     for i, item in ipairs(qf) do
diff --git a/vim/.vimrc b/vim/.vimrc
index c03ea61..d6e392e 100644
--- a/vim/.vimrc
+++ b/vim/.vimrc
@@ -33,6 +33,13 @@ nnoremap H ^
 nnoremap L $
 set autoindent
 set cursorline
+set undofile
+set undodir=~/.vim/undodir
+if !isdirectory(expand('~/.vim/undodir'))
+    call mkdir(expand('~/.vim/undodir'), 'p')
+endif
+set undodir=~/.vim/undodir
+set undofile
 set errorformat^=[----]\ %f:%l:\ %m
 set expandtab
 set exrc