#!/bin/sh -e

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

script=:
if [ "$1" == -x ]
then
    script=$2
    shift; shift
fi

name="$1"
version="$2"
shift; shift

nv=$name-$version
mkdir $nv

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

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

$script $name $version

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