cooler backup defaults

autoread changes from other programs, and keep persistent undo
information between sessions.

nvim/.config/nvim/init.lua

@@ -70,6 +70,10 @@ vim.cmd [[
     set errorformat^=[----]\ %f:%l:\ %m
 ]]
 
+vim.o.backup = false
+vim.o.writebackup = false
+vim.o.swapfile = false
+vim.o.autoread = true
 vim.o.undofile = true
 vim.o.undodir = vim.fn.expand("~/.vim/neoundodir")
 if vim.fn.isdirectory(vim.o.undodir) == 0 then

vim/.vimrc

@@ -33,11 +33,17 @@ nnoremap H ^
 nnoremap L $
 set autoindent
 set cursorline
+
+set nobackup
+set nowritebackup
+set noswapfile
+set autoread
 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