gistfile1

function! s:load_optional_rtp(loc)
  let loc = expand(a:loc)
  exe "set rtp+=".loc
  let files = split(globpath(loc, '**/*.vim'), "\n")
  for i in reverse(filter(files, 'filereadable(v:val)'))
    if i !~ '/tests\?/'
      source `=i`
    endif
  endfor
endfunction

"call s:load_optional_rtp("~/dev/eskk.vim")
"call s:load_optional_rtp("~/dev/chalice")