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#!/bin/bash
#
# Run a system upgrade.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program. If not, see
# <http://www.gnu.org/licenses/>.
# Basic parameters
TIMEFRAME="${1:-86400}"
DATE="`date +%s`"
LOG="/var/lib/hydractl/aperidic-upgrade"
# Set sudo config
if [ "`whoami`" != 'root' ]; then
sudo="sudo"
fi
# Ensure log folder
$sudo mkdir -p "`dirname $LOG`"
if [ ! -e "$LOG" ]; then
# Upgrade anyway
hydractl upgrade
else
LAST="`cat $LOG`"
if [ -z "$LAST" ]; then
hydractl upgrade
else
INTERVAL="$(($DATE - $LAST))"
# More than $TIMEFRAME?
if (( $INTERVAL > $TIMEFRAME )); then
hydractl upgrade
else
echo "Please enjoy life for an additional $(($TIMEFRAME - $INTERVAL)) seconds before running this command again."
exit
fi
fi
fi
# Save timestamp
date +%s | $sudo tee $LOG > /dev/null
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