112 lines
3.0 KiB
PHP
112 lines
3.0 KiB
PHP
<?php
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/*
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* This file is part of Psy Shell
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*
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* (c) 2012-2014 Justin Hileman
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Psy\Command;
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use Psy\Context;
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use Psy\ContextAware;
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use Psy\Output\ShellOutput;
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use Symfony\Component\Console\Input\InputArgument;
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Input\InputOption;
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use Symfony\Component\Console\Output\OutputInterface;
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/**
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* Show the last uncaught exception.
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*/
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class WtfCommand extends TraceCommand implements ContextAware
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{
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/**
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* Context instance (for ContextAware interface).
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*
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* @var Context
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*/
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protected $context;
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/**
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* ContextAware interface.
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*
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* @param Context $context
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*/
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public function setContext(Context $context)
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{
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$this->context = $context;
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}
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/**
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* {@inheritdoc}
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*/
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protected function configure()
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{
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$this
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->setName('wtf')
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->setAliases(array('last-exception', 'wtf?'))
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->setDefinition(array(
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new InputArgument('incredulity', InputArgument::OPTIONAL | InputArgument::IS_ARRAY, 'Number of lines to show'),
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new InputOption('verbose', 'v', InputOption::VALUE_NONE, 'Show entire backtrace.'),
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))
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->setDescription('Show the backtrace of the most recent exception.')
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->setHelp(
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<<<HELP
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Shows a few lines of the backtrace of the most recent exception.
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If you want to see more lines, add more question marks or exclamation marks:
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e.g.
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<return>>>> wtf ?</return>
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<return>>>> wtf ?!???!?!?</return>
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To see the entire backtrace, pass the -v/--verbose flag:
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e.g.
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<return>>>> wtf -v</return>
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HELP
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);
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}
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/**
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* {@inheritdoc}
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*
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* --verbose is not hidden for this option :)
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*
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* @return array
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*/
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protected function getHiddenOptions()
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{
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$options = parent::getHiddenOptions();
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unset($options[array_search('verbose', $options)]);
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return $options;
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}
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/**
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* {@inheritdoc}
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*/
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protected function execute(InputInterface $input, OutputInterface $output)
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{
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$incredulity = implode('', $input->getArgument('incredulity'));
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if (strlen(preg_replace('/[\\?!]/', '', $incredulity))) {
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throw new \InvalidArgumentException('Incredulity must include only "?" and "!".');
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}
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$exception = $this->context->getLastException();
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$count = $input->getOption('verbose') ? PHP_INT_MAX : pow(2, max(0, (strlen($incredulity) - 1)));
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$trace = $this->getBacktrace($exception, $count);
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$shell = $this->getApplication();
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$output->page(function ($output) use ($exception, $trace, $shell) {
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$shell->renderException($exception, $output);
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$output->writeln('--');
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$output->write($trace, true, ShellOutput::NUMBER_LINES);
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});
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}
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}
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