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File / Folder	Size	Action
.	-
AnsiColorMode.php	3.46KB	edt ren
BufferedOutput.php	0.818KB	edt ren
ConsoleOutput.php	4.762KB	edt ren
ConsoleOutputInterface.php	0.796KB	edt ren
ConsoleSectionOutput.php	8.279KB	edt ren
NullOutput.php	2.034KB	edt ren
Output.php	4.198KB	edt ren
OutputInterface.php	2.78KB	edt ren
StreamOutput.php	4.54KB	edt ren
TrimmedBufferOutput.php	1.548KB	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\Exception\InvalidArgumentException;
use Symfony\Component\Console\Formatter\OutputFormatterInterface;

/**
 * StreamOutput writes the output to a given stream.
 *
 * Usage:
 *
 *     $output = new StreamOutput(fopen('php://stdout', 'w'));
 *
 * As `StreamOutput` can use any stream, you can also use a file:
 *
 *     $output = new StreamOutput(fopen('/path/to/output.log', 'a', false));
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class StreamOutput extends Output
{
    /** @var resource */
    private $stream;

/**
     * @param resource                      $stream    A stream resource
     * @param int                           $verbosity The verbosity level (one of the VERBOSITY constants in OutputInterface)
     * @param bool|null                     $decorated Whether to decorate messages (null for auto-guessing)
     * @param OutputFormatterInterface|null $formatter Output formatter instance (null to use default OutputFormatter)
     *
     * @throws InvalidArgumentException When first argument is not a real stream
     */
    public function __construct($stream, int $verbosity = self::VERBOSITY_NORMAL, ?bool $decorated = null, ?OutputFormatterInterface $formatter = null)
    {
        if (!\is_resource($stream) || 'stream' !== get_resource_type($stream)) {
            throw new InvalidArgumentException('The StreamOutput class needs a stream as its first argument.');
        }

$this->stream = $stream;

$decorated ??= $this->hasColorSupport();

parent::__construct($verbosity, $decorated, $formatter);
    }

/**
     * Gets the stream attached to this StreamOutput instance.
     *
     * @return resource
     */
    public function getStream()
    {
        return $this->stream;
    }

/**
     * @return void
     */
    protected function doWrite(string $message, bool $newline)
    {
        if ($newline) {
            $message .= \PHP_EOL;
        }

@fwrite($this->stream, $message);

fflush($this->stream);
    }

/**
     * Returns true if the stream supports colorization.
     *
     * Colorization is disabled if not supported by the stream:
     *
     * This is tricky on Windows, because Cygwin, Msys2 etc emulate pseudo
     * terminals via named pipes, so we can only check the environment.
     *
     * Reference: Composer\XdebugHandler\Process::supportsColor
     * https://github.com/composer/xdebug-handler
     *
     * @return bool true if the stream supports colorization, false otherwise
     */
    protected function hasColorSupport(): bool
    {
        // Follow https://no-color.org/
        if (isset($_SERVER['NO_COLOR']) || false !== getenv('NO_COLOR')) {
            return false;
        }

if (!$this->isTty()) {
            return false;
        }

if (\DIRECTORY_SEPARATOR === '\\'
            && \function_exists('sapi_windows_vt100_support')
            && @sapi_windows_vt100_support($this->stream)
        ) {
            return true;
        }

return 'Hyper' === getenv('TERM_PROGRAM')
            || false !== getenv('ANSICON')
            || 'ON' === getenv('ConEmuANSI')
            || str_starts_with((string) getenv('TERM'), 'xterm');
    }

/**
     * Checks if the stream is a TTY, i.e; whether the output stream is connected to a terminal.
     *
     * Reference: Composer\Util\Platform::isTty
     * https://github.com/composer/composer
     */
    private function isTty(): bool
    {
        // Detect msysgit/mingw and assume this is a tty because detection
        // does not work correctly, see https://github.com/composer/composer/issues/9690
        if (\in_array(strtoupper((string) getenv('MSYSTEM')), ['MINGW32', 'MINGW64'], true)) {
            return true;
        }

// Modern cross-platform function, includes the fstat fallback so if it is present we trust it
        if (\function_exists('stream_isatty')) {
            return stream_isatty($this->stream);
        }

// Only trusting this if it is positive, otherwise prefer fstat fallback.
        if (\function_exists('posix_isatty') && posix_isatty($this->stream)) {
            return true;
        }

$stat = @fstat($this->stream);

// Check if formatted mode is S_IFCHR
        return $stat ? 0020000 === ($stat['mode'] & 0170000) : false;
    }
}