bootstrap_captive/sharxz.sh

#!/usr/bin/env bash

set -e
set -x

INDIR=$1
OUTFILE=$2

dd if=/dev/zero of=$OUTFILE bs=1024 count=1
dd of=$OUTFILE if=./unsharxz.sh conv=notrunc
tar -cC $INDIR .| xz -c -T 0 | base64 -w 0 >> $OUTFILE
chmod +x $OUTFILE