#!/bin/rc

flag e +

repo=$1
out=$2
shift 2

ifs=() { oldpwd=`{pwd | head -c -1} }
cd $repo

git read-tree --empty
cat $oldpwd/$* | git update-index --index-info
tree=`{git write-tree}
git update-ref refs/tags/tree $tree

cd $oldpwd
echo $tree >$out.tmp
mv $out.tmp $out