From 234e29f3675da94bc88310e7ade7459458eacef0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kier=C3=A1n=20Meinhardt?= <kmein@posteo.de>
Date: Mon, 9 Mar 2026 10:13:23 +0100
Subject: [PATCH] vim: trim trailing spaces

---
 packages/vim/init.vim | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/vim/init.vim b/packages/vim/init.vim
index 6d5bff4..4a03d74 100644
--- a/packages/vim/init.vim
+++ b/packages/vim/init.vim
@@ -45,6 +45,17 @@ let g:netrw_winsize = 25
 call matchadd('colorcolumn', '\%101v', 100)
 highlight colorcolumn ctermbg=red
 
+fun! TrimWhitespace()
+  " Skip if the filetype is markdown
+  if &ft =~ 'markdown'
+    return
+  endif
+  let l:save = winsaveview()
+  keeppatterns %s/\s\+$//e
+  call winrestview(l:save)
+endfun
+autocmd BufWritePre * call TrimWhitespace()
+
 " undofile - This allows you to use undos after exiting and restarting
 " This, like swap and backups, uses .vim-undo first, then ~/.vim/undo
 " :help undo-persistence