an update script for teaspeak

teaupdate.sh

#!/bin/bash

# config
query_port=10102
query_user=user
query_pass=pass
warning_secs=180
warning_interval=30

# the user which runs the server, used for fixing permissions
teaspeak_user=teaspeak
teaspeak_group=teaspeak

# connect
exec 8<>/dev/tcp/localhost/$query_port
printf "login $query_user $query_pass\r\n" >&8

# run hostinfo and transform data into asso. array
declare -A hostinfo
while read -r -t 1 -u 8 REPLY; do :; done
printf "hostinfo\r\n" >&8
read -r -t 1 -u 8 REPLY
for data in $REPLY; do
  set -- `echo $data | tr '=' ' '`
  hostinfo[$1]=$2
done

servers=${hostinfo[virtualservers_running_total]}
clients=${hostinfo[virtualservers_total_clients_online]}

echo "# ------------------------------------------------"

# check version and ask for update
echo "# Getting version..."

if [ `getconf LONG_BIT` = "64" ]
then
  version=$(curl -s -S -k https://repo.teaspeak.de/server/linux/amd64_stable/latest)
else
  version=$(curl -s -S -k https://repo.teaspeak.de/server/linux/x86_stable/latest)
fi

IFS=' ' read -ra installedversion <<< $(head -1 buildVersion.txt)
echo "# Installed version is : '${installedversion[2]}'"
echo "# Newest version is    : '${version}'"
if [ "$version" == "${installedversion[2]}" ]
then
  printf "logout\r\n" >&8
  printf "exit\r\n" >&8
  echo "# Already up to date!"
  exit 0
else
  echo "# Currently there are $clients clients connected on $servers servers"
  echo -n "# Update required. Would you like to update now? (y/n)"
  read answer
  if [ "$answer" != "${answer#[Nn]}" ]
  then
    printf "logout\r\n" >&8
    printf "exit\r\n" >&8
    echo "# Exiting..."
    exit 0
  fi
fi

echo "# ------------------------------------------------"

# count down and notify clients of upcoming restart
echo -n "# Would you like to give the clients a $warning_secs seconds warning? (y/n)"
read answer
if [ "$answer" != "${answer#[Yy]}" ]
then
  printf "gm msg=Server\swill\srestart\sfor\san\supdate\ssoon.\sWont\stake\slong!\r\n" >&8
  for ((i=$warning_secs;i>0;i=i-$warning_interval)); do
    echo -n "$i."
    printf "gm msg=Server\srestart\sin\s$i\sseconds!\r\n" >&8
    sleep $warning_interval
  done
fi

echo -e "\n# ------------------------------------------------"

# stop the server
printf "serverprocessstop type=schedule time=0 msg=Stopping\sServer!\r\n" >&8

# update
echo "# Starting update..."
if [ `getconf LONG_BIT` = "64" ]
then
  echo "# Detected an 64 bit environment"
  requesturl="https://repo.teaspeak.de/server/linux/amd64_stable/TeaSpeak-${version}.tar.gz"
else
  echo "# Detected an 32 bit environment"
  requesturl="https://repo.teaspeak.de/server/linux/x86_stable/TeaSpeak-${version}.tar.gz"
fi

echo "# Downloading ${requesturl}"
curl -s -S "$requesturl" -o updatefile.tar.gz

echo "# Backing up config and database"
cp config.yml config.yml.old
cp TeaData.sqlite TeaData.sqlite.old

echo "# Unpacking and removing .tar.gz"
tar -xzf updatefile.tar.gz
rm updatefile.tar.gz

echo "# Making scripts executable"
chmod u+x *.sh

echo "# TeaSpeak should be now updated to ${version}"

echo "# ------------------------------------------------"

echo "# Setting permissions of the entire folder back to ${teaspeak_user}"
chown -R ${teaspeak_user}:${teaspeak_group} ./*