ConsoleSpi.php
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ConsoleSpi.php
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	<?php

	namespace MediaWiki\Logger;

	use Psr\Log\NullLogger;

	/**
	* ConsoleLogger service provider for MediaWiki\Logger\LoggerFactory.
	*
	* This is developed for use in maintenance/eval.php.
	*
	* @internal For use in MediaWiki core only
	* @since 1.30
	* @ingroup Debug
	*/
	class ConsoleSpi implements Spi {

	/** @var string[]\|null Channel allow-list: channel name => minimum level */
	private ?array $channels;

	private ?Spi $forwardTo;

	/**
	* @param array $config
	* - channels: (string[]) List of channels to log: channel name => minimum level.
	* Omit to log everything.
	* - forwardTo: (Spi) Forward all log messages to this SPI (regardless of whether
	* ConsoleSpi logs them).
	*/
	public function __construct( array $config = [] ) {
	$this->channels = $config['channels'] ?? null;
	$this->forwardTo = $config['forwardTo'] ?? null;
	}

	/** @inheritDoc */
	public function getLogger( $channel ) {
	if ( !$this->channels \|\| isset( $this->channels[$channel] ) ) {
	return new ConsoleLogger( $channel, $this->channels[$channel] ?? null,
	$this->forwardTo ? $this->forwardTo->getLogger( $channel ) : null );
	} else {
	return $this->forwardTo ? $this->forwardTo->getLogger( $channel ) : new NullLogger();
	}
	}
	}