Viewing file:  WtfCommand.php (2.98 KB) -rw-r--r--
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<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2015 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy\Command;
use Psy\Context;
use Psy\ContextAware;
use Psy\Output\ShellOutput;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
/**
* Show the last uncaught exception.
*/
class WtfCommand extends TraceCommand implements ContextAware
{
/**
* Context instance (for ContextAware interface).
*
* @var Context
*/
protected $context;
/**
* ContextAware interface.
*
* @param Context $context
*/
public function setContext(Context $context)
{
$this->context = $context;
}
/**
* {@inheritdoc}
*/
protected function configure()
{
$this
->setName('wtf')
->setAliases(array('last-exception', 'wtf?'))
->setDefinition(array(
new InputArgument('incredulity', InputArgument::OPTIONAL | InputArgument::IS_ARRAY, 'Number of lines to show'),
new InputOption('verbose', 'v', InputOption::VALUE_NONE, 'Show entire backtrace.'),
))
->setDescription('Show the backtrace of the most recent exception.')
->setHelp(
<<<'HELP'
Shows a few lines of the backtrace of the most recent exception.
If you want to see more lines, add more question marks or exclamation marks:
e.g.
<return>>>> wtf ?</return>
<return>>>> wtf ?!???!?!?</return>
To see the entire backtrace, pass the -v/--verbose flag:
e.g.
<return>>>> wtf -v</return>
HELP
);
}
/**
* {@inheritdoc}
*
* --verbose is not hidden for this option :)
*
* @return array
*/
protected function getHiddenOptions()
{
$options = parent::getHiddenOptions();
unset($options[array_search('verbose', $options)]);
return $options;
}
/**
* {@inheritdoc}
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
$incredulity = implode('', $input->getArgument('incredulity'));
if (strlen(preg_replace('/[\\?!]/', '', $incredulity))) {
throw new \InvalidArgumentException('Incredulity must include only "?" and "!".');
}
$exception = $this->context->getLastException();
$count = $input->getOption('verbose') ? PHP_INT_MAX : pow(2, max(0, (strlen($incredulity) - 1)));
$trace = $this->getBacktrace($exception, $count);
$shell = $this->getApplication();
$output->page(function ($output) use ($exception, $trace, $shell) {
$shell->renderException($exception, $output);
$output->writeln('--');
$output->write($trace, true, ShellOutput::NUMBER_LINES);
});
}
}
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