config() {
  NEW="$1"
  OLD="$(dirname $NEW)/$(basename $NEW .new)"
  # If there's no config file by that name, mv it over:
  if [ ! -r $OLD ]; then
    mv $NEW $OLD
  elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
    # toss the redundant copy
    rm $NEW
  fi
  # Otherwise, we leave the .new copy for the admin to consider...
}

config etc/nginx/fastcgi_params.new
config etc/nginx/fastcgi.conf.new
config etc/nginx/mime.types.new
config etc/nginx/nginx.conf.new
config etc/nginx/koi-utf.new
config etc/nginx/koi-win.new
config etc/nginx/scgi_params.new
config etc/nginx/uwsgi_params.new
config etc/nginx/win-utf.new
