#!/bin/bash
#
# script to synchronize the CDLI archive at UCLA to MPIWG
#
# V0.4.3 (30.6.2006 ROC)

DEBUG=1

LOCKFILE=/var/tmp/cdli-archive-sync.lock
LOGFILE=/var/tmp/cdli-archive-sync.log
EXCLUDEFILE=/export/home/mirror/scripts/rsync-exclude.list

MAILTO=casties@mpiwg-berlin.mpg.de

MIRDIR=/mpiwg/mirror/CDLI/ARCHIVE
REMOTEDIR=/Volumes/cdli_archives

RSYNC=/usr/local/bin/rsync
RSYNCHOST="mpiwgsav@backup.cdli.ucla.edu"
RSYNCOPTS="--delete --exclude-from=$EXCLUDEFILE"


function syncdir () {
#
# sync given directory
#
    DIR=$1
    REMDIR=${2:-$REMOTEDIR}
    if [ -n "$3" ] && [ ${3:1:1} == "-" ]
    then
	# if the third param starts with "-" it's the options
	MOREOPTS=$3
	shift
    fi
    LOCDIR=${3:-$MIRDIR}
    echo "***** syncing $DIR on $(date)" >> $LOGFILE
    if [ -n $DEBUG ] ; then echo "syncing $DIR on $(date)"; fi
    if [ -n $DEBUG ] ; then echo "    $RSYNC -ave ssh $RSYNCOPTS $MOREOPTS \"$RSYNCHOST:$REMDIR/$DIR/\" \"$LOCDIR/$DIR/\" >> $LOGFILE 2>&1" >> $LOGFILE ; fi
    $RSYNC -ave ssh $RSYNCOPTS $MOREOPTS "$RSYNCHOST:$REMDIR/$DIR/" "$LOCDIR/$DIR/" >> $LOGFILE 2>&1 
    if [ $? != 0 ]
    then
	ERROR="${ERROR}ERROR syncing $DIR "
    fi
}



#
# check if script is already running
#
if [ -f $LOCKFILE ]
then
    if [ -n $DEBUG ] ; then echo "lockfile present! script seems to be running!"; fi

    mail -t $MAILTO <<EOF
Subject: CDLI-ARCHIVE-MIRROR: already running!

`ls -l $LOCKFILE `
EOF
    exit 1
fi

touch $LOCKFILE

echo "***** started `date`" > $LOGFILE

#
# sync
#
syncdir "cdli_archival"

syncdir "cdli_general" "/Volumes/cdli_freeze" "--exclude=englund/personal/"

syncdir "cdli_rawfiles" "/Volumes/cdli_freeze"

#
# send mail with error log if an error occurred
#
if [ -n "$ERROR" ]
then
    # don't send logs bigger than 1MB
    LOGSIZE=`ls -l $LOGFILE |cut -c 32-40`
    if [ "$LOGSIZE" -gt 900000 ]
    then
	LOG="LOGFILE too big to send: $LOGSIZE"
    else
	LOG=`cat $LOGFILE`
    fi

    mail -t $MAILTO <<EOF
Subject: $ERROR

$LOG
EOF
fi

# remove lock

rm $LOCKFILE