#!/bin/bash

# Copyright (c) 2001-2006, Kungliga Tekniska Högskolan
# (Royal Institute of Technology, Stockholm Sweden)
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# 3. Neither the name of the university nor the names of its contributors
#    may be used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

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

# This is wrong.
if [ -e /var/local/afsbackup-pid ]; then
    p=$(cat /var/local/afsbackup-pid)
    echo "Checking if previous backup $p is still running..."
    if kill -0 $p; then
	echo "It is. Bailing out."
	exit 1
    else
	echo "Cleaning up old lockfile."
	rm /var/local/afsbackup-pid
    fi
fi
echo $$ >/var/local/afsbackup-pid

RCPT=afsbackup@e.kth.se

# Rotate logs.
YEAR=$(date "+%Y")
find /var/log/afs-tsm/ -mindepth 1 -maxdepth 1 -type f -name "*log.*" ! -name "*log.$YEAR*" -exec mv {} /var/log/afs-tsm/old \;

STATUS=""

/usr/lib/heimdal/bin/kauth -k system/afsbackup  \
/usr/local/afsbackup/metabackup || STATUS="$STATUS METABACKUP FAILED."

/usr/lib/heimdal/bin/kauth -k system/afsbackup \
/usr/local/afsbackup/backup.pl || STATUS="$STATUS BACKUP FAILED."

/usr/local/afsbackup/clean.pl || STATUS="$STATUS CLEAN FAILED."

if [[ "$STATUS" == "" ]]; then
    STATUS=OK
fi

echo $STATUS >/var/local/afsbackup-status

DATE=$(date "+%Y%m%d")

(
echo "From: noreply@kth.se";
echo "To: $RCPT";
echo "Subject: AFS backup $DATE";
echo "";
echo AFS Backup $DATE;
echo $STATUS
) | mail $RCPT

rm /var/local/afsbackup-pid
