Move swapfile .vimrc config into subfile

1 files changed, 32 insertions, 0 deletions

diff --git a/vim/config/swapfile.vim b/vim/config/swapfile.vim
new file mode 100644
index 00000000..39e1ab95
--- /dev/null
+++ b/vim/config/swapfile.vim
@@ -0,0 +1,32 @@
+" Swap files are used if using Unix and not using sudo(8); I very seldom need
+" them, but they are occasionally useful after a crash, and they don't really
+" get in the way if kept in their own directory
+if !strlen($SUDO_USER) && has('unix')
+
+  " Use swap files but keep them in ~/.vim/swap; the double-slash at the end
+  " of the directory prods Vim into keeping the full path to the file in its
+  " undo filename to avoid collisions; the same thing works for undo files
+  set swapfile
+  set directory^=~/.vim/swap//
+
+  " Create the ~/.vim/swap directory if necessary and possible
+  if !isdirectory($HOME . '/.vim/swap') && exists('*mkdir')
+    call mkdir($HOME . '/.vim/swap', 'p', 0700)
+  endif
+
+  " Don't keep swap files for files in temporary directories or shared memory
+  " filesystems; this is because they're used as scratch spaces for tools
+  " like sudoedit(8) and pass(1) and hence could present a security problem
+  if has('autocmd')
+    augroup swapskip
+      autocmd!
+      silent! autocmd BufNewFile,BufReadPre
+          \ /tmp/*,$TMPDIR/*,$TMP/*,$TEMP/*,*/shm/*
+          \ setlocal noswapfile
+    augroup END
+  endif
+
+" Otherwise, don't use swap files at all
+else
+  set noswapfile
+endif