Update Kodi on your Fire TV to latest nightly automatically

kodiupdate-firetv.php

#! /usr/bin/env php
<?php
// Set ARM or x86
$arch = "arm";
// IP adress of Fire TV
$ip = "10.0.0.229";	
// Timezone
$timezone = "Europe/Berlin";

function getxbmc($currv,$date,$arch,$ip) {
	if (stripos($currv,"kodi-") !== false) {
		$left = strstr($currv,"kodi-".$date);
	} else {
		$left = strstr($currv,"xbmc-".$date);
	}
	$filename = substr($left,0,strpos($left,".apk")).".apk";
	if(file_exists($filename)) {
		unlink($filename);
		echo "Old file deleted.\n";
	}
	echo "Download new file...\n";
	file_put_contents($filename,file_get_contents("http://mirrors.xbmc.org/nightlies/android/".$arch."/".$filename));
	echo "Done.\n";
	echo "connecting to Fire TV with IP ".$ip." ...\n";
	echo exec("adb connect ".$ip)."\n";
	echo "Installing...\n";
	echo exec("adb install -r ".$filename)."\n";
	echo "Deleting Kodi build...\n";
	unlink($filename);
	echo "Done!\n";
}
date_default_timezone_set($timezone);
$currv = file_get_contents("http://mirrors.xbmc.org/nightlies/android/".$arch."/");
if (stripos($currv,date('Ymd')) !== false) {
	getxbmc($currv,date('Ymd'),$arch,$ip);
}elseif (stripos($currv,date('Ymd',strtotime('-1 days'))) !== false) {
	getxbmc($currv,date('Ymd',strtotime('-1 days')),$arch,$ip);
} else {
	echo "No new build today or yesterday!\n";
}
?>