svn&git repo autocomplete file in vim

autocomplete.sh

function is_git_repository {
  git branch > /dev/null 2>&1
}
 
function is_svn_repository {
  test -d .svn
}

if is_git_repository ; then
  git ls-files | dmenu -i -l 20 -p $1
elif is_svn_repository ; then
  find . -iwholename "*$1*" -type f -not \( -name '*pyc' -o -name '*py~' -o -name '*.swp' -o -name '*un~' \) -not -iwholename '*.svn*' -not -iwholename '*.git*'| dmenu -i -l 20 -p $1
fi

" Strip the newline from the end of a string
function! Chomp(str)
  return substitute(a:str, '\n$', '', '')
endfunction

" Find a file and pass it to cmd
function! DmenuOpen(cmd)
  let fname = Chomp(system("~/bin/autocomplete.sh " . a:cmd))
  if empty(fname)
    return
  endif
  execute a:cmd . " " . fname
endfunction

map <c-t> :call DmenuOpen("tabe")<cr>
map <c-f> :call DmenuOpen("e")<cr>