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File / Folder	Size	Action
.	-
BufferedOutput.php	0.821KB	edt ren
ConsoleOutput.php	4.794KB	edt ren
ConsoleOutputInterface.php	0.801KB	edt ren
ConsoleSectionOutput.php	4.068KB	edt ren
NullOutput.php	2.107KB	edt ren
Output.php	4.432KB	edt ren
OutputInterface.php	3.34KB	edt ren
StreamOutput.php	3.766KB	edt ren
TrimmedBufferOutput.php	1.546KB	edt ren
error_log	44.191KB	edt ren

<?php

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

namespace Symfony\Component\Console\Output;

use Symfony\Component\Console\Formatter\OutputFormatterInterface;
use Symfony\Component\Console\Helper\Helper;
use Symfony\Component\Console\Terminal;

/**
 * @author Pierre du Plessis <pdples@gmail.com>
 * @author Gabriel Ostrolucký <gabriel.ostrolucky@gmail.com>
 */
class ConsoleSectionOutput extends StreamOutput
{
    private $content = [];
    private $lines = 0;
    private $sections;
    private $terminal;

/**
     * @param resource               $stream
     * @param ConsoleSectionOutput[] $sections
     */
    public function __construct($stream, array &$sections, int $verbosity, bool $decorated, OutputFormatterInterface $formatter)
    {
        parent::__construct($stream, $verbosity, $decorated, $formatter);
        array_unshift($sections, $this);
        $this->sections = &$sections;
        $this->terminal = new Terminal();
    }

/**
     * Clears previous output for this section.
     *
     * @param int $lines Number of lines to clear. If null, then the entire output of this section is cleared
     */
    public function clear(int $lines = null)
    {
        if (empty($this->content) || !$this->isDecorated()) {
            return;
        }

if ($lines) {
            array_splice($this->content, -($lines * 2)); // Multiply lines by 2 to cater for each new line added between content
        } else {
            $lines = $this->lines;
            $this->content = [];
        }

$this->lines -= $lines;

parent::doWrite($this->popStreamContentUntilCurrentSection($lines), false);
    }

/**
     * Overwrites the previous output with a new message.
     *
     * @param array|string $message
     */
    public function overwrite($message)
    {
        $this->clear();
        $this->writeln($message);
    }

public function getContent(): string
    {
        return implode('', $this->content);
    }

/**
     * @internal
     */
    public function addContent(string $input)
    {
        foreach (explode(\PHP_EOL, $input) as $lineContent) {
            $this->lines += ceil($this->getDisplayLength($lineContent) / $this->terminal->getWidth()) ?: 1;
            $this->content[] = $lineContent;
            $this->content[] = \PHP_EOL;
        }
    }

/**
     * {@inheritdoc}
     */
    protected function doWrite($message, $newline)
    {
        if (!$this->isDecorated()) {
            parent::doWrite($message, $newline);

return;
        }

$erasedContent = $this->popStreamContentUntilCurrentSection();

$this->addContent($message);

parent::doWrite($message, true);
        parent::doWrite($erasedContent, false);
    }

/**
     * At initial stage, cursor is at the end of stream output. This method makes cursor crawl upwards until it hits
     * current section. Then it erases content it crawled through. Optionally, it erases part of current section too.
     */
    private function popStreamContentUntilCurrentSection(int $numberOfLinesToClearFromCurrentSection = 0): string
    {
        $numberOfLinesToClear = $numberOfLinesToClearFromCurrentSection;
        $erasedContent = [];

foreach ($this->sections as $section) {
            if ($section === $this) {
                break;
            }

$numberOfLinesToClear += $section->lines;
            $erasedContent[] = $section->getContent();
        }

if ($numberOfLinesToClear > 0) {
            // move cursor up n lines
            parent::doWrite(sprintf("\x1b[%dA", $numberOfLinesToClear), false);
            // erase to end of screen
            parent::doWrite("\x1b[0J", false);
        }

return implode('', array_reverse($erasedContent));
    }

private function getDisplayLength(string $text): string
    {
        return Helper::strlenWithoutDecoration($this->getFormatter(), str_replace("\t", '        ', $text));
    }
}