#!/bin/bash
set -e

hosts="$@"

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

packages=""

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

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

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

echo -e "\n# Upgrading servers\n"

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