Mercurial > hg > isophonics-drupal-site
diff vendor/psy/psysh/src/Psy/Command/WtfCommand.php @ 0:4c8ae668cc8c
Initial import (non-working)
author | Chris Cannam |
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date | Wed, 29 Nov 2017 16:09:58 +0000 |
parents | |
children | 7a779792577d |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vendor/psy/psysh/src/Psy/Command/WtfCommand.php Wed Nov 29 16:09:58 2017 +0000 @@ -0,0 +1,125 @@ +<?php + +/* + * This file is part of Psy Shell. + * + * (c) 2012-2017 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\Input\FilterOptions; +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 = $context; + } + + /** + * {@inheritdoc} + */ + protected function configure() + { + list($grep, $insensitive, $invert) = FilterOptions::getOptions(); + + $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('all', 'a', InputOption::VALUE_NONE, 'Show entire backtrace.'), + + $grep, + $insensitive, + $invert, + )) + ->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 -a/--all flag: + +e.g. +<return>>>> wtf -v</return> +HELP + ); + } + + /** + * {@inheritdoc} + */ + protected function execute(InputInterface $input, OutputInterface $output) + { + $this->filter->bind($input); + + $incredulity = implode('', $input->getArgument('incredulity')); + if (strlen(preg_replace('/[\\?!]/', '', $incredulity))) { + throw new \InvalidArgumentException('Incredulity must include only "?" and "!".'); + } + + $exception = $this->context->getLastException(); + $count = $input->getOption('all') ? PHP_INT_MAX : max(3, pow(2, strlen($incredulity) + 1)); + + $shell = $this->getApplication(); + $output->startPaging(); + do { + $traceCount = count($exception->getTrace()); + $showLines = $count; + // Show the whole trace if we'd only be hiding a few lines + if ($traceCount < max($count * 1.2, $count + 2)) { + $showLines = PHP_INT_MAX; + } + + $trace = $this->getBacktrace($exception, $showLines); + $moreLines = $traceCount - count($trace); + + $output->writeln($shell->formatException($exception)); + $output->writeln('--'); + $output->write($trace, true, ShellOutput::NUMBER_LINES); + $output->writeln(''); + + if ($moreLines > 0) { + $output->writeln(sprintf( + '<aside>Use <return>wtf -a</return> to see %d more lines</aside>', + $moreLines + )); + $output->writeln(''); + } + } while ($exception = $exception->getPrevious()); + $output->stopPaging(); + } +}