#!/bin/bash

# This file is part of Cockpit.
#
# Copyright (C) 2016 Red Hat, Inc.
#
# Cockpit is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# Cockpit 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Cockpit; If not, see <http://www.gnu.org/licenses/>.

# We don't want to delete the pbuilder caches since we need them
# during build.  Mock with --offline and dnf is happy without caches,
# but with yum it isn't, so we provide an option to also leave the
# mock caches in place.
#
# We also want to keep cracklib since otherwise password quality
# checks break on Debian.

if [ -f /root/.skip-zero-disk ]; then
    echo "Skipping zero-disk.setup as /root/.skip-zero-disk exists"
    exit 0
fi

keep="! -path /var/cache/pbuilder ! -path /var/cache/cracklib ! -path /var/cache/tomcat"
while [ $# -gt 0 ]; do
    case $1 in
	--keep-mock-cache)
            keep="$keep ! -path /var/cache/mock"
	    ;;
    esac
    shift
done

if [ -d "/var/cache" ]; then
    find /var/cache/* -maxdepth 0 -depth -name "*" $keep -exec rm -rf {} \;
fi
rm -rf /var/tmp/*
rm -rf /var/log/journal/*

dd if=/dev/zero of=/root/junk || true
sync
rm -f /root/junk