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Up to [local] / mss / netupdate

 - rename NAME to MYNAME for clear
 - add comments in config file
 - add --ignore-existing flag to rsync to stop checking existing *.mp3

#!/usr/local/bin/bash

# Use config file instead of editing script itself
source netupdate.conf

# Set some variables
LOCK=/var/run/mssupdate.lock
LOCALVERSION=`cat /var/lib/mss/version`

# Get apropriate programm version and full path to it from fileserver
VERSION=`ssh $USER@$SERVER grep $MYNAME $HOSTLIST |awk '{print $2}'`
UPDATEDIR=`ssh $USER@$SERVER grep $MYNAME $HOSTLIST |awk '{print $3}'`

# Add version file if it's missing (useful on clean systems)
if [ ! -e /var/lib/mss/version ]; then
	echo "0.0" > /var/lib/mss/version
fi

# Check whether we have latest version
if [ "$(echo "$LOCALVERSION < $VERSION" |bc -l )" -eq 1 ] && [ ! -e $LOCK ]; then
	echo "Starting update..."
	touch $LOCK
	rsync -Hacvx --exclude-from=/var/lib/mss/rsync-exclude $USER@$SERVER:$UPDATEDIR/$VERSION/ /var/lib/mss
	rsync -Havx --ignore-existing --exclude-from=/var/lib/mss/rsync-exclude $USER@$SERVER:$UPDATEDIR/music /var/lib/mss/
	echo "Updated from $LOCALVERSION to $VERSION"
	echo $VERSION > /var/lib/mss/version
	ssh $USER@$SERVER echo "`date` SUCCESS: $MYNAME was updated from $UPDATEDIR $LOCALVERSION '->' $VERSION" >> $UPDATEDIR/update.log
	rm -f $LOCK
elif [ "$(echo "$LOCALVERSION < $VERSION" |bc -l )" -eq 1 ] && [ -e $LOCK ]; then
	echo "Update is running..."
	ssh $USER@$SERVER echo "`date` WARNING: $MYNAME is still running update from $LOCALVERSION to $VERSION" >> $UPDATEDIR/update.log
else
	echo "Version $LOCALVERSION is already installed"
fi





# Debug
echo $USER $SERVER $MYNAME $UPDATEDIR $VERSION $LOCALVERSION $HOSTLIST