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#!/bin/sh -e
# Backup to yoda
[ "$USER" = root ] || exec sudo "$0" "$@"
usage='Usage: byo [-cdk] [/dev/sda2]
Backup local disk to yoda external disk.
Options:
-c close and umount yoda
-d dedupe yoda
-k do not umount and close yoda
'
while getopts :Ccdk opt; do
case $opt in
(C|c|d|k) eval "opt$opt=$opt" ;;
(*) printf %s "$usage"; exit 1 ;;
esac
done
shift $((OPTIND - 1))
dev=$1
yoda_uuid='8c463221-6bb7-414e-9060-c9570bb3a6bb'
[ "$dev" ] || dev=$(blkid --uuid "$yoda_uuid")
dest=/mnt/backup/$(hostname)
[ -b /dev/mapper/yoda ] && noclose=1 || cryptsetup open "$dev" yoda
findmnt /dev/mapper/yoda /mnt >/dev/null && noumount=1 || mount /dev/mapper/yoda /mnt
time backup -v -d "$dest"
[ ! "$optC" ] || backup -v -d "$dest" clean
[ ! "$optd" ] || time duperemove -drh --hashfile="$dest/.hashfile" "$dest"
df -h / "$dest"
ls -v "$dest"
[ ! "$optk" ] || noumount=1 noclose=1
[ ! "$optc" ] || noumount='' noclose=''
[ "$noumount" ] || umount /mnt
[ "$noclose" ] || cryptsetup close yoda
echo "bye"
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