#!/bin/sh -e
for branch in `git branch | sed 's/..//'`; do
echo git checkout $branch
git checkout $branch
echo "old HEAD: `git-hash`"
for new_root in "${@:-HEAD}"; do
	new_root_hash=`git log -n1 --format=%H "$new_root"`
	echo "$new_root_hash"
done >.git/info/grafts
git filter-branch -f
echo "new HEAD: `git-hash`"
done
rm .git/info/grafts
confirm git-gc-all-ferocious $AGGRESSIVE # --aggressive