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#!/bin/bash
#
# NextCloudPlus scheduled datadir BTRFS snapshots
#
# 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!
#
# More at https://ownyourbits.com/2017/02/13/nextcloud-ready-raspberry-pi-image/
#
ACTIVE_=no
DESCRIPTION="Scheduled datadir BTRFS snapshots"
install()
{
wget https://raw.githubusercontent.com/nachoparker/btrfs-snp/master/btrfs-snp -O /usr/local/bin/btrfs-snp
chmod +x /usr/local/bin/btrfs-snp
}
configure()
{
[[ $ACTIVE_ != "yes" ]] && {
rm /etc/cron.hourly/btrfs-snp
echo "automatic snapshots disabled"
return 0
}
local DATADIR MOUNTPOINT
DATADIR=$( sudo -u www-data php /var/www/nextcloud/occ config:system:get datadirectory ) || {
echo -e "Error reading data directory. Is NextCloud running and configured?";
return 1;
}
# file system check
MOUNTPOINT="$( stat -c "%m" "$DATADIR" )" || return 1
[[ "$( stat -fc%T "$MOUNTPOINT" )" != "btrfs" ]] && {
echo "$MOUNTPOINT is not in a BTRFS filesystem"
return 1
}
cat > /etc/cron.hourly/btrfs-snp <<EOF
#!/bin/bash
/usr/local/bin/btrfs-snp $MOUNTPOINT hourly 24 3600 ../ncp-snapshots
/usr/local/bin/btrfs-snp $MOUNTPOINT daily 7 86400 ../ncp-snapshots
/usr/local/bin/btrfs-snp $MOUNTPOINT weekly 4 604800 ../ncp-snapshots
/usr/local/bin/btrfs-snp $MOUNTPOINT monthly 12 2592000 ../ncp-snapshots
EOF
chmod +x /etc/cron.hourly/btrfs-snp
echo "automatic snapshots enabled"
}
# 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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