.vimrc

syntax on
set cindent
set expandtab
set shiftwidth=2
set smarttab
set hlsearch
set ruler
set nobackup
set maxmem=8000000
set maxmemtot=8000000
colorscheme ron

" Protect large files from sourcing and other overhead.
" Files become read only
if !exists("my_auto_commands_loaded")
  let my_auto_commands_loaded = 1
  " Large files are > 100M
  " Set options:
  " eventignore+=FileType (no syntax highlighting etc
  " assumes FileType always on)
  " noswapfile (save copy of file)
  " bufhidden=unload (save memory when other file is viewed)
  " buftype=nowritefile (is read-only)
  " undolevels=-1 (no undo possible)
  let g:LargeFile = 1024 * 1024 * 100
  augroup LargeFile
    autocmd BufReadPre * let f=expand("<afile>") | if getfsize(f) > g:LargeFile | set eventignore+=FileType | setlocal noswapfile bufhidden=unload undolevels=-1 | else | set eventignore-=FileType | endif
    augroup END
  endif