41 lines
1.3 KiB
PHP
41 lines
1.3 KiB
PHP
<?php
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/**
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* @package Airtime
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* @copyright 2011 Sourcefabric O.P.S.
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* @license http://www.gnu.org/licenses/gpl.txt
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*
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* Checks if a current version of Airtime is installed.
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* If so, the user is presented with the help menu and can
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* choose -r to reinstall.
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*
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* Returns 0 if Airtime is not installed
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* Returns 1 if the same version of Airtime already installed
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* Returns 2 if a previous version of Airtime is installed we can upgrade from
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* Returns 3 if a version of Airtime is installed that we can't upgrade from.
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*/
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require_once(dirname(__FILE__).'/AirtimeInstall.php');
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require_once(__DIR__.'/airtime-constants.php');
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AirtimeInstall::ExitIfNotRoot();
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$version = AirtimeInstall::GetVersionInstalled();
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// The current version is already installed.
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echo "* Checking for existing Airtime installation...".PHP_EOL;
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if (isset($version)){
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if ($version === false){
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//version of Airtime older than 1.7.0 detected
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exit(3);
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} else {
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if (($version == AIRTIME_VERSION)) {
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//same version of Airtime is already installed
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exit(1);
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} else if (strcmp($version, AIRTIME_VERSION) < 0){
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//previous version of Airtime is installed.
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exit(2);
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}
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}
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} else {
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//no previous version of Airtime found
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exit(0);
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}
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