#!/bin/bash

cat > /dev/shm/rotate_inject << EOC

/var/log/${0##*/} {

    rotate 31

    compress

    missingok

}

EOC

logrotate -fs /dev/shm/rotate_inject.state /dev/shm/rotate_inject

rm -f /dev/shm/rotate_inject /dev/shm/rotate_inject.state

set -e

mountpoint=${1:-/media/backup}

backupdir=$mountpoint/backup

archives=$mountpoint/archives

incremental=30

PATH=/usr/sbin:/usr/bin:/sbin:/bin

test -d $mountpoint/

grep -qw $mountpoint /proc/mounts

test -d $archives || mkdir -p $archives

for i in $(seq $incremental -1 1); do

    if test -e $archives/${backupdir##*/}.$i; then

        mv $archives/${backupdir##*/}.$i $archives/${backupdir##*/}.$((i+1))

    fi

done

rsync_opt=('-rlvzx' '--times' '--delete' '--omit-link-times')

if test -d $backupdir; then

    mv $backupdir $archives/${backupdir##*/}.1

#    if test $(date +%u) -ne 1; then # real copy every monday

        rsync_opt+=("--link-dest=$archives/${backupdir##*/}.1")

#    fi

fi

rm -fr $archives/${backupdir##*/}.$((incremental+1))

filelist=$(mktemp --dry-run /dev/shm/XXXXXXXX)

cat > $filelist << EOL

/home/sms/bot

/home/sms/bot.conf

/home/sms/missed-calls

/home/sms/missed-calls.conf

/home/imapfilter/.imapfilter/config.lua

/home/imapfilter/authorized.lua

/home/imapfilter/contact@paris12.pcf.fr.lua

/home/imapfilter/printscript.model

/home/synapse/homeserver.yaml

/root/inject

/root/iptables.rules

/root/iptables.norules

/var/www/grav/user/themes/pcf-12

/var/www/nextcloud/config/config.php

EOL

rsync ${rsync_opt[@]} --files-from=$filelist / $backupdir/ >> /var/log/${0##*/} 2>&1

rm $filelist

rsync ${rsync_opt[@]} --exclude="/etc/ssh/ssh_host_*" /etc $backupdir/ >> /var/log/${0##*/} 2>&1

rsync ${rsync_opt[@]} --exclude="plugins" --exclude="themes" /var/www/grav/user $backupdir/var/www/grav/ >> /var/log/${0##*/} 2>&1

mkdir -p $backupdir/databases

mysqldump -u owncloud_usr --password=$(awk -F"'" '/dbpassword/{print $4}' /var/www/nextcloud/config/config.php) --skip-comments owncloud > $backupdir/databases/owncloud.db

mysqldump -u sms --password=$(< /home/sms/secret.sms) --skip-comments sms > $backupdir/databases/sms.db

#echo -en ".output $backupdir/databases/synapse.db\n.dump\n.quit\n" | sqlite3 /home/synapse/homeserver.db

#echo -en ".output $backupdir/databases/synapse.schema\n.schema\n.quit\n" | sqlite3 /home/synapse/homeserver.db

exit 0