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<?php declare(strict_types=1);
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\SelfUpdate;
use Composer\Pcre\Preg;
/**
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class Keys
{
public static function fingerprint(string $path): string
{
$hash = strtoupper(hash('sha256', Preg::replace('{\s}', '', file_get_contents($path))));
return implode(' ', [
substr($hash, 0, 8),
substr($hash, 8, 8),
substr($hash, 16, 8),
substr($hash, 24, 8),
'', // Extra space
substr($hash, 32, 8),
substr($hash, 40, 8),
substr($hash, 48, 8),
substr($hash, 56, 8),
]);
}
}