Subversion-Projekte lars-tiefland.laravel_shop

<?php

/*

 * This file is part of Psy Shell.

 *

 * (c) 2012-2022 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\Formatter\CodeFormatter;

use Psy\Output\ShellOutput;

use Psy\Shell;

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 $backtrace;

    /**

     * @param string|null $colorMode (deprecated and ignored)

     */

    public function __construct($colorMode = null)

    {

        $this->backtrace = \debug_backtrace(\DEBUG_BACKTRACE_IGNORE_ARGS);

        parent::__construct();

    }

    /**

     * {@inheritdoc}

     */

    protected function configure()

    {

        $this

            ->setName('whereami')

            ->setDefinition([

                new InputOption('num', 'n', InputOption::VALUE_OPTIONAL, 'Number of lines before and after.', '5'),

                new InputOption('file', 'f|a', InputOption::VALUE_NONE, 'Show the full source for the current file.'),

            ])

            ->setDescription('Show where you are in the code.')

            ->setHelp(

                <<<'HELP'

Show where you are in the code.

Optionally, include the number of lines before and after you want to display,

or --file for the whole file.

e.g.

<return>> whereami </return>

<return>> whereami -n10</return>

<return>> whereami --file</return>

HELP

            );

    }

    /**

     * Obtains the correct stack frame in the full backtrace.

     *

     * @return array

     */

    protected function trace(): array

    {

        foreach (\array_reverse($this->backtrace) as $stackFrame) {

            if ($this->isDebugCall($stackFrame)) {

                return $stackFrame;

            }

        }

        return \end($this->backtrace);

    }

    private static function isDebugCall(array $stackFrame): bool

    {

        $class = isset($stackFrame['class']) ? $stackFrame['class'] : null;

        $function = isset($stackFrame['function']) ? $stackFrame['function'] : null;

        return ($class === null && $function === 'Psy\\debug') ||

            ($class === Shell::class && \in_array($function, ['__construct', 'debug']));

    }

    /**

     * Determine the file and line based on the specific backtrace.

     *

     * @return array

     */

    protected function fileInfo(): array

    {

        $stackFrame = $this->trace();

        if (\preg_match('/eval\(/', $stackFrame['file'])) {

            \preg_match_all('/([^\(]+)\((\d+)/', $stackFrame['file'], $matches);

            $file = $matches[1][0];

            $line = (int) $matches[2][0];

        } else {

            $file = $stackFrame['file'];

            $line = $stackFrame['line'];

        }

        return \compact('file', 'line');

    }

    /**

     * {@inheritdoc}

     *

     * @return int 0 if everything went fine, or an exit code

     */

    protected function execute(InputInterface $input, OutputInterface $output)

    {

        $info = $this->fileInfo();

        $num = $input->getOption('num');

        $lineNum = $info['line'];

        $startLine = \max($lineNum - $num, 1);

        $endLine = $lineNum + $num;

        $code = \file_get_contents($info['file']);

        if ($input->getOption('file')) {

            $startLine = 1;

            $endLine = null;

        }

        if ($output instanceof ShellOutput) {

            $output->startPaging();

        }

        $output->writeln(\sprintf('From <info>%s:%s</info>:', $this->replaceCwd($info['file']), $lineNum));

        $output->write(CodeFormatter::formatCode($code, $startLine, $endLine, $lineNum), false);

        if ($output instanceof ShellOutput) {

            $output->stopPaging();

        }

        return 0;

    }

    /**

     * Replace the given directory from the start of a filepath.

     *

     * @param string $file

     *

     * @return string

     */

    private function replaceCwd(string $file): string

    {

        $cwd = \getcwd();

        if ($cwd === false) {

            return $file;

        }

        $cwd = \rtrim($cwd, \DIRECTORY_SEPARATOR).\DIRECTORY_SEPARATOR;

        return \preg_replace('/^'.\preg_quote($cwd, '/').'/', '', $file);

    }

}