ErrorHandler.php

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<?php

namespace Elgg\Cli;

use Elgg\Logger;
use Monolog\Handler\AbstractProcessingHandler;
use Monolog\Level;
use Monolog\LogRecord;
use Symfony\Component\Console\Output\NullOutput;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Output\StreamOutput;
use Symfony\Component\VarDumper\Cloner\VarCloner;
use Symfony\Component\VarDumper\Dumper\CliDumper;
use Monolog\Formatter\FormatterInterface;

class ErrorHandler extends AbstractProcessingHandler {
    
    const VERBOSITY_LEVEL_MAP = [
        OutputInterface::VERBOSITY_QUIET => Logger::OFF,
        OutputInterface::VERBOSITY_NORMAL => Level::Warning,
        OutputInterface::VERBOSITY_VERBOSE => Level::Notice,
        OutputInterface::VERBOSITY_VERY_VERBOSE => Level::Info,
        OutputInterface::VERBOSITY_DEBUG => Level::Debug,
    ];
    
    protected $stdout;

    protected $stderr;

    public function __construct(
        OutputInterface $stdout,
        ?OutputInterface $stderr = null,
        $bubble = true
    ) {
        $this->stdout = $stdout;
        $this->stderr = $stderr ?: $stdout;

        $verbosity = $this->stdout->getVerbosity() ?: OutputInterface::VERBOSITY_NORMAL;

        $level = self::VERBOSITY_LEVEL_MAP[$verbosity];

        parent::__construct($level, $bubble);
    }

    public function write(LogRecord $record): void {
        $stream = $record->level->value >= Level::Error ? $this->stderr : $this->stdout;

        $stream->write($record->formatted, true);

        if ($stream instanceof StreamOutput) {
            $dumper = new CliDumper($stream->getStream());
            $cloner = new VarCloner();

            if (!empty($record->context)) {
                $dumper->dump($cloner->cloneVar($record->context));
            }

            if (!empty($record->extra)) {
                $dumper->dump($cloner->cloneVar($record->extra));
            }
        }
    }

    public function getDefaultFormatter(): FormatterInterface {
        return new ErrorFormatter();
    }

    public function close(): void {
        $this->stdout = new NullOutput();
        $this->stderr = new NullOutput();
    }
}