#!/bin/bash
set -e

hosts=$1

if [ -z "$hosts" ]
then
	echo "Usage: $(basename $0) host1 [host2]..."
	exit 1
fi

packages=""

cut -d" " -f1 "$PWD/debian/files" |
while read debFile
do
    packageName=$(echo $debFile | cut -d"_" -f1)
    packages="$packages $packageName"
done

if [ -z "$packages" ]
then
	echo "No packages found to install"
	exit 1
fi

# FIXME: Packages are not upgraded when config files are changed

echo "Upgrading servers."

for host in $hosts
do
    echo " * Upgrading $host"
    ssh root@$host "update-repo vn && apt-get install $packages"
done