1 files changed, 28 insertions, 0 deletions
diff --git a/vim/config/bigfile.vim b/vim/config/bigfile.vim
new file mode 100644
index 00000000..f15c7e85
--- /dev/null
+++ b/vim/config/bigfile.vim
@@ -0,0 +1,28 @@
+" 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