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    <h3>Editing: ProcessHelper.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Console\Helper;

use Symfony\Component\Console\Output\ConsoleOutputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Process\Exception\ProcessFailedException;
use Symfony\Component\Process\Process;

/**
 * The ProcessHelper class provides helpers to run external processes.
 *
 * @author Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * @final
 */
class ProcessHelper extends Helper
{
    /**
     * Runs an external process.
     *
     * @param array|Process $cmd      An instance of Process or an array of the command and arguments
     * @param callable|null $callback A PHP callback to run whenever there is some
     *                                output available on STDOUT or STDERR
     */
    public function run(OutputInterface $output, array|Process $cmd, string $error = null, callable $callback = null, int $verbosity = OutputInterface::VERBOSITY_VERY_VERBOSE): Process
    {
        if (!class_exists(Process::class)) {
            throw new \LogicException('The ProcessHelper cannot be run as the Process component is not installed. Try running &quot;compose require symfony/process&quot;.');
        }

        if ($output instanceof ConsoleOutputInterface) {
            $output = $output-&gt;getErrorOutput();
        }

        $formatter = $this-&gt;getHelperSet()-&gt;get('debug_formatter');

        if ($cmd instanceof Process) {
            $cmd = [$cmd];
        }

        if (\is_string($cmd[0] ?? null)) {
            $process = new Process($cmd);
            $cmd = [];
        } elseif (($cmd[0] ?? null) instanceof Process) {
            $process = $cmd[0];
            unset($cmd[0]);
        } else {
            throw new \InvalidArgumentException(sprintf('Invalid command provided to &quot;%s()&quot;: the command should be an array whose first element is either the path to the binary to run or a &quot;Process&quot; object.', __METHOD__));
        }

        if ($verbosity &lt;= $output-&gt;getVerbosity()) {
            $output-&gt;write($formatter-&gt;start(spl_object_hash($process), $this-&gt;escapeString($process-&gt;getCommandLine())));
        }

        if ($output-&gt;isDebug()) {
            $callback = $this-&gt;wrapCallback($output, $process, $callback);
        }

        $process-&gt;run($callback, $cmd);

        if ($verbosity &lt;= $output-&gt;getVerbosity()) {
            $message = $process-&gt;isSuccessful() ? 'Command ran successfully' : sprintf('%s Command did not run successfully', $process-&gt;getExitCode());
            $output-&gt;write($formatter-&gt;stop(spl_object_hash($process), $message, $process-&gt;isSuccessful()));
        }

        if (!$process-&gt;isSuccessful() &amp;&amp; null !== $error) {
            $output-&gt;writeln(sprintf('&lt;error&gt;%s&lt;/error&gt;', $this-&gt;escapeString($error)));
        }

        return $process;
    }

    /**
     * Runs the process.
     *
     * This is identical to run() except that an exception is thrown if the process
     * exits with a non-zero exit code.
     *
     * @param array|Process $cmd      An instance of Process or a command to run
     * @param callable|null $callback A PHP callback to run whenever there is some
     *                                output available on STDOUT or STDERR
     *
     * @throws ProcessFailedException
     *
     * @see run()
     */
    public function mustRun(OutputInterface $output, array|Process $cmd, string $error = null, callable $callback = null): Process
    {
        $process = $this-&gt;run($output, $cmd, $error, $callback);

        if (!$process-&gt;isSuccessful()) {
            throw new ProcessFailedException($process);
        }

        return $process;
    }

    /**
     * Wraps a Process callback to add debugging output.
     */
    public function wrapCallback(OutputInterface $output, Process $process, callable $callback = null): callable
    {
        if ($output instanceof ConsoleOutputInterface) {
            $output = $output-&gt;getErrorOutput();
        }

        $formatter = $this-&gt;getHelperSet()-&gt;get('debug_formatter');

        return function ($type, $buffer) use ($output, $process, $callback, $formatter) {
            $output-&gt;write($formatter-&gt;progress(spl_object_hash($process), $this-&gt;escapeString($buffer), Process::ERR === $type));

            if (null !== $callback) {
                $callback($type, $buffer);
            }
        };
    }

    private function escapeString(string $str): string
    {
        return str_replace('&lt;', '\\&lt;', $str);
    }

    public function getName(): string
    {
        return 'process';
    }
}
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