zsync.sh

#!/bin/bash

# set -x                                                                                                                                                                                 
if [ -z $1 ] ; then 
    echo "Usage: $0 url_of_zsync"
    exit -1
fi

cd $(dirname $0)

# Find the folder.
DIR=$(dirname $1 | cut -b 8-)
# Find the reference ISO image.
ISO=$(find $(dirname ${DIR}) -type f -exec stat -c '%Y %n' {} \; | sort -nr | awk 'NR==1 {print $2}')
BASENAME=$(basename $1 .zsync)

mkdir -p ${DIR}
if [ -f ${DIR}/${BASENAME} ] ; then
    echo "${DIR}/${BASENAME} exist"
    exit -1
fi
if [ -z ${ISO} ] ; then
    zsync $1 -o ${DIR}/${BASENAME}
else
    zsync $1 -i ${ISO} -o ${DIR}/${BASENAME}
fi