#!/bin/sh -e

if [ $# = 0 ]; then
    echo "Usage: $0 NAME (FILE | -C DIR)..."
    exit 1
fi

name=$1; shift

mkdir $name

# arrange cleanup
trap 'rm -rf "$name"' 0

dir=.
until [ $# = 0 ]; do
    if [ "$1" = -C ]; then
	dir="$2"
	if shift 2; then continue; fi
	echo "-C requires an argument" >&2
	exit 1
    fi
    mkdir -p `dirname "$name/$1"`
    ln "$dir/$1" "$name/$1"
    shift
done

tar -czf $name.tar.gz --owner=0 --group=0 --mode=ug+w,a+rX $name