#!/bin/sh

d=`pwd`

while [ x"$d" != x"/" ] ; do
  if [ -d "$d"/.git ] ; then
    gitbase="$d"
    break
  fi
  d=`dirname "$d"`
done

if [ -z "$gitbase" ] ; then
  echo "Not a git repository -- aborting" >&2
  exit
fi

d=`pwd`

while [ x"$d" != x"/" ] ; do
  f="$d"/.gitignore
  test -f "$f" && sed -e "s@^\(!\)\?/@\\1$d/@" < $f

  if [ "$d" = "$gitbase" ] ; then
    break
  fi

  d=`dirname "$d"`
done | sort | uniq | sed -e "s@^\(!\)\?${gitbase}@\\1@"