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#!/bin/bash
# Nextcloud backups
#
# Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
# GPL licensed (see end of file) * Use at your own risk!
#
# Usage:
#
# ./installer.sh nc-backup.sh <IP> (<img>)
#
# See installer.sh instructions for details
#
# More at https://ownyourbits.com/2017/02/13/nextcloud-ready-raspberry-pi-image/
#
DESTDIR_=/media/USBdrive
INCLUDEDATA_=no
BACKUPLIMIT_=4
DESCRIPTION="Backup this NC instance to a file"
DESTFILE="$DESTDIR_"/nextcloud-bkp_$( date +"%Y%m%d" ).tar
DBBACKUP=nextcloud-sqlbkp_$( date +"%Y%m%d" ).bak
BASEDIR=/var/www
configure()
{
local DATADIR
DATADIR=$( cd "$BASEDIR"/nextcloud; sudo -u www-data php occ config:system:get datadirectory ) || {
echo -e "Error reading data directory. Is NextCloud running and configured?";
return 1;
}
sudo -u www-data php "$BASEDIR"/nextcloud/occ maintenance:mode --on
cd "$BASEDIR" || return 1
echo -e "backup database..."
mysqldump -u root --single-transaction nextcloud > "$DBBACKUP"
[[ "$INCLUDEDATA_" == "yes" ]] && echo -e "backup datadir... "
echo -e "backup files..."
mkdir -p "$DESTDIR_"
tar -cf "$DESTFILE" "$DBBACKUP" nextcloud/ \
--exclude "nextcloud/data/*/files/*" \
--exclude "nextcloud/data/.opcache" \
--exclude "nextcloud/data/{access,error,nextcloud}.log" \
&& \
echo -e "backup $DESTFILE generated" || \
echo -e "error generating backup"
rm "$DBBACKUP"
[[ "$INCLUDEDATA_" == "yes" ]] && {
tar -rf "$DESTFILE" -C "$DATADIR"/.. "$( basename "$DATADIR" )" || \
echo -e "error generating data backup"
}
# delete older backups
[[ $BACKUPLIMIT_ != 0 ]] && {
local NUMBKPS=$( ls "$DESTDIR_"/nextcloud-bkp_* | wc -l )
[[ $NUMBKPS > $BACKUPLIMIT_ ]] && \
ls -t $DESTDIR_/nextcloud-bkp_* | tail -$(( NUMBKPS - BACKUPLIMIT_ )) | while read -r f; do
echo -e "clean up old backup $f"
rm "$f"
done
}
sudo -u www-data php "$BASEDIR"/nextcloud/occ maintenance:mode --off
}
install() { :; }
cleanup() { :; }
# License
#
# This script is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This script is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this script; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
# Boston, MA 02111-1307 USA
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