Git.php

<?php
 
/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
 */
 
declare(strict_types=1);
 
namespace pocketmine\utils;
 
use function str_repeat;
use function strlen;
use function trim;
 
final class Git{
 
    private function __construct(){
        //NOOP
    }
 
    public static function getRepositoryState(string $dir, bool &$dirty) : ?string{
        if(Process::execute("git -C \"$dir\" rev-parse HEAD", $out) === 0 && $out !== false && strlen($out = trim($out)) === 40){
            if(Process::execute("git -C \"$dir\" diff --quiet") === 1 || Process::execute("git -C \"$dir\" diff --cached --quiet") === 1){ //Locally-modified
                $dirty = true;
            }
            return $out;
        }
        return null;
    }
 
    public static function getRepositoryStatePretty(string $dir) : string{
        $dirty = false;
        $detectedHash = self::getRepositoryState($dir, $dirty);
        if($detectedHash !== null){
            return $detectedHash . ($dirty ? "-dirty" : "");
        }
        return str_repeat("00", 20);
    }
}