if exists('g:loaded_autosave')
  finish
endif
let g:loaded_autosave = 1

let g:autosave = get(g:, 'autosave', 0)

fu! s:autosave_start()
  aug autosave
    au!
    au TextChanged,CursorHold,InsertLeave * sil! update
  aug END
  echo 'autosave: on'
endf

fu! s:autosave_stop()
  au! autosave
  echo 'autosave: off'
endf

com! AirsaveOn  call <SID>autosave_start()
com! AirsaveOff call <SID>autosave_stop()

if g:autosave
  call <SID>autosave_start()
endif