MercurialProcessor.php

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<?php
 
/*
 * This file is part of the Monolog package.
 *
 * (c) Jonathan A. Schweder <jonathanschweder@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
 
namespace Monolog\Processor;
 
use Monolog\Logger;
 
class MercurialProcessor implements ProcessorInterface
{
    private $level;
    private static $cache;
 
    public function __construct($level = Logger::DEBUG)
    {
        $this->level = Logger::toMonologLevel($level);
    }
 
    public function __invoke(array $record)
    {
        // return if the level is not high enough
        if ($record['level'] < $this->level) {
            return $record;
        }
 
        $record['extra']['hg'] = self::getMercurialInfo();
 
        return $record;
    }
 
    private static function getMercurialInfo()
    {
        if (self::$cache) {
            return self::$cache;
        }
 
        $result = explode(' ', trim(`hg id -nb`));
        if (count($result) >= 3) {
            return self::$cache = array(
                'branch' => $result[1],
                'revision' => $result[2],
            );
        }
 
        return self::$cache = array();
    }
}