autoupdate game servers (steam)

steam-check.php

<?php

if(!array_key_exists(1, $argv)) exit();

$appid = (int) $argv[1];
$version = (int) preg_replace("/[^0-9]+/","",$argv[2]);

$url = "http://api.steampowered.com/isteamapps/uptodatecheck/v0001?appid=$appid&version=$version";

$data = file_get_contents($url);
$res = json_decode($data, true);

if(@$res['response']['version_is_listable'])
    echo "OK";
else
    echo "UPDATE";

update-gameserver.sh

#!/bin/sh

if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ]; then
    echo "$0 APPID SERVERAPPID STEAMINF"
    echo "$0 240 232330 cstrike/steam.inf"
    exit;
fi

APPID="$1"
SERVERAPPID="$2"
STEAMINF="$3"
STEAMCMD="$HOME/steamcmd"
DIRFILES="$STEAMCMD/$APPID"
APPDIR="$HOME/$APPID"
DATE="$(date '+%Y-%m-%d_%H:%M:%S')"

# Checked state program
if pgrep -f $0 > /dev/null 2>&1 ; then
    if [ -f $0.pid ] && pgrep -f $0 | tr ' ' '\n' | grep -w $(cat $0.pid) > /dev/null 2>&1 ; then
        echo "$0 in progress.."
        exit
    fi
fi
echo "$0 Started."
echo $$ > $0.pid

# Get steamcmd
steamcmd() {
    mkdir -p $STEAMCMD

    if [ -d $STEAMCMD ]; then
        cd $STEAMCMD
        curl http://media.steampowered.com/client/installer/steamcmd_linux.tar.gz | tar xvz
    fi

    if [ $? -ne 0 ]; then
        echo "failed to install steamcmd"
    else
        echo "steamcmd install."
    fi
}

#
csnapshot() {
    if [ -f $DIRFILES/$STEAMINF ]; then
        HOCK="$(awk -F'=' '/PatchVersion/ {print $2}' $DIRFILES/$STEAMINF | tr -d '\n\r')"
        if [ $? -eq 0 ]; then
            DATE=$HOCK
        fi
    fi

    touch $APPDIR/.rsyncignore

    if [ -L $APPDIR/current ]; then
        rsync -a --link-dest=$APPDIR/current $DIRFILES/ $APPDIR/$DATE --exclude-from $APPDIR/.rsyncignore
    else
        rsync -a $DIRFILES/ $APPDIR/$DATE --exclude-from $APPDIR/.rsyncignore
    fi

    if [ $? -eq 0 ]; then
        rm $APPDIR/current
        cd $APPDIR && ln -sf $DATE $APPDIR/current
    fi
}

# Check steamcmd installed
if [ ! -f $STEAMCMD/steamcmd.sh ]; then
    steamcmd
fi

# Check directory app
if [ ! -d $APPDIR ]; then
    mkdir -p $APPDIR
fi

# getVersion game server
if [ -f $APPDIR/current/$STEAMINF ]; then
 VERSION="$(awk -F'=' '/PatchVersion/ {print $2}' $APPDIR/current/$STEAMINF)"
 CHECK="$(php steam-check.php $APPID $VERSION)"
else
    echo "is not file $APPDIR/current/$STEAMINF"
fi

# Check update or install game server
if [ "$CHECK" != "OK" ]; then
 cd $STEAMCMD; ./steamcmd.sh +login anonymous +force_install_dir $DIRFILES +app_update $SERVERAPPID +quit
fi

if [ -z "$CHECK" ] && [ -L $APPDIR/current ]; then
    if [ -n "$(diff -qr $DIRFILES/ $APPDIR/current/)" ]; then
        # Create snapshot versions
        csnapshot
    fi
else
    # Create snapshot versions
    csnapshot
fi