GitRepository.php

<?php declare(strict_types=1);
/*
 * irstea/php-cs-fixer-config - Jeux de règles pour php-cs-fixer.
 * Copyright (C) 2018-2020 IRSTEA
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 */

namespace Irstea\CS\Git;

use Assert\Assertion;

/**
 * Class GitRepository.
 */
final class GitRepository implements GitRepositoryInterface
{
    /**
     * @var string
     */
    private $repositoryPath;

    /**
     * GitRepository constructor.
     */
    public function __construct(string $repositoryPath)
    {
        Assertion::directory($repositoryPath . '/.git');

        $this->repositoryPath = $repositoryPath;
    }

    /**
     * {@inheritdoc}
     */
    public function getHeadCommit(): string
    {
        return trim(shell_exec('git -C ' . escapeshellarg($this->repositoryPath) . ' rev-parse HEAD'));
    }

    /**
     * {@inheritdoc}
     */
    public function getYearRange(): string
    {
        $last = date('Y');
        $first = exec('git -C ' . escapeshellarg($this->repositoryPath) . ' log --format=%cd --date=format:%Y --date-order | tail -n1');
        if (!$first) {
            $first = '???';
        }

        return ($last !== null && $last !== $first) ? "$first-$last" : $first;
    }
}