Viewing file:  WhereamiCommand.php (3.33 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 JakubOnderka\PhpConsoleHighlighter\Highlighter;
use Psy\Configuration;
use Psy\ConsoleColorFactory;
use Psy\Output\ShellOutput;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
/**
* Show the context of where you opened the debugger.
*/
class WhereamiCommand extends Command
{
private $colorMode;
/**
* @param null|string $colorMode (default: null)
*/
public function __construct($colorMode = null)
{
$this->colorMode = $colorMode ?: Configuration::COLOR_MODE_AUTO;
if (version_compare(PHP_VERSION, '5.3.6', '>=')) {
$this->backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
} else {
$this->backtrace = debug_backtrace();
}
return parent::__construct();
}
/**
* {@inheritdoc}
*/
protected function configure()
{
$this
->setName('whereami')
->setDefinition(array(
new InputOption('num', 'n', InputOption::VALUE_OPTIONAL, 'Number of lines before and after.', '5'),
))
->setDescription('Show where you are in the code.')
->setHelp(
<<<'HELP'
Show where you are in the code.
Optionally, include how many lines before and after you want to display.
e.g.
<return>> whereami </return>
<return>> whereami -n10</return>
HELP
);
}
/**
* Obtains the correct trace in the full backtrace.
*
* @return array
*/
protected function trace()
{
foreach ($this->backtrace as $i => $backtrace) {
if (!isset($backtrace['class'], $backtrace['function'])) {
continue;
}
$correctClass = $backtrace['class'] === 'Psy\Shell';
$correctFunction = $backtrace['function'] === 'debug';
if ($correctClass && $correctFunction) {
return $backtrace;
}
}
return end($this->backtrace);
}
/**
* Determine the file and line based on the specific backtrace.
*
* @return array
*/
protected function fileInfo()
{
$backtrace = $this->trace();
if (preg_match('/eval\(/', $backtrace['file'])) {
preg_match_all('/([^\(]+)\((\d+)/', $backtrace['file'], $matches);
$file = $matches[1][0];
$line = (int) $matches[2][0];
} else {
$file = $backtrace['file'];
$line = $backtrace['line'];
}
return compact('file', 'line');
}
/**
* {@inheritdoc}
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
$info = $this->fileInfo();
$num = $input->getOption('num');
$factory = new ConsoleColorFactory($this->colorMode);
$colors = $factory->getConsoleColor();
$highlighter = new Highlighter($colors);
$contents = file_get_contents($info['file']);
$output->page($highlighter->getCodeSnippet($contents, $info['line'], $num, $num), ShellOutput::OUTPUT_RAW);
}
}
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