#! /bin/sh

ROOTLIST=~/.nixroots

if ! test -f $ROOTLIST; then
    touch $ROOTLIST
fi

for i in $*; do
    if nix ensure $i > /dev/null; then
	if grep -q $i $ROOTLIST; then
	    echo $i already is a root
        else
            echo adding root $i
	    echo $i >> $ROOTLIST
	fi
    fi
done