Move BigFileMeasures() .vimrc func into subfile

Also add a note to IDEAS.md for later to consider packaging this as a
proepr plugin, even if it doesn't actually leave the dotfiles repository
just yet.

1 files changed, 0 insertions, 29 deletions

diff --git a/vim/vimrc b/vim/vimrc
index d00376f0..9dcbb38f 100644
--- a/vim/vimrc
+++ b/vim/vimrc
@@ -249,32 +249,3 @@ if has('autocmd')
     autocmd!
   augroup END
 endif
-
-" When opening a large file, take some measures to keep things loading quickly
-if has('eval') && has('autocmd')
-
-  " Threshold is 10 MiB
-  let g:bigfilesize = 10 * 1024 * 1024
-
-  " Declare function for turning off slow options
-  function! BigFileMeasures()
-    let l:file = expand('<afile>')
-    if getfsize(l:file) > g:bigfilesize
-      setlocal nobackup
-      setlocal nowritebackup
-      setlocal noswapfile
-      if has('persistent_undo')
-        setlocal noundofile
-      endif
-      if exists('&synmaxcol')
-        setlocal synmaxcol=256
-      endif
-    endif
-  endfunction
-
-  " Define autocmd for calling to check filesize
-  augroup bigfilesize
-    autocmd!
-    autocmd BufReadPre * call BigFileMeasures()
-  augroup end
-endif