Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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StreamOutput.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\Console\Output;
013
014 use Symfony\Component\Console\Exception\InvalidArgumentException;
015 use Symfony\Component\Console\Exception\RuntimeException;
016 use Symfony\Component\Console\Formatter\OutputFormatterInterface;
017
018 /**
019 * StreamOutput writes the output to a given stream.
020 *
021 * Usage:
022 *
023 * $output = new StreamOutput(fopen('php://stdout', 'w'));
024 *
025 * As `StreamOutput` can use any stream, you can also use a file:
026 *
027 * $output = new StreamOutput(fopen('/path/to/output.log', 'a', false));
028 *
029 * @author Fabien Potencier <fabien@symfony.com>
030 */
031 class StreamOutput extends Output
032 {
033 private $stream;
034
035 /**
036 * Constructor.
037 *
038 * @param resource $stream A stream resource
039 * @param int $verbosity The verbosity level (one of the VERBOSITY constants in OutputInterface)
040 * @param bool|null $decorated Whether to decorate messages (null for auto-guessing)
041 * @param OutputFormatterInterface|null $formatter Output formatter instance (null to use default OutputFormatter)
042 *
043 * @throws InvalidArgumentException When first argument is not a real stream
044 */
045 public function __construct($stream, $verbosity = self::VERBOSITY_NORMAL, $decorated = null, OutputFormatterInterface $formatter = null)
046 {
047 if (!is_resource($stream) || 'stream' !== get_resource_type($stream)) {
048 throw new InvalidArgumentException('The StreamOutput class needs a stream as its first argument.');
049 }
050
051 $this->stream = $stream;
052
053 if (null === $decorated) {
054 $decorated = $this->hasColorSupport();
055 }
056
057 parent::__construct($verbosity, $decorated, $formatter);
058 }
059
060 /**
061 * Gets the stream attached to this StreamOutput instance.
062 *
063 * @return resource A stream resource
064 */
065 public function getStream()
066 {
067 return $this->stream;
068 }
069
070 /**
071 * {@inheritdoc}
072 */
073 protected function doWrite($message, $newline)
074 {
075 if (false === @fwrite($this->stream, $message) || ($newline && (false === @fwrite($this->stream, PHP_EOL)))) {
076 // should never happen
077 throw new RuntimeException('Unable to write output.');
078 }
079
080 fflush($this->stream);
081 }
082
083 /**
084 * Returns true if the stream supports colorization.
085 *
086 * Colorization is disabled if not supported by the stream:
087 *
088 * - Windows != 10.0.10586 without Ansicon, ConEmu or Mintty
089 * - non tty consoles
090 *
091 * @return bool true if the stream supports colorization, false otherwise
092 */
093 protected function hasColorSupport()
094 {
095 if (DIRECTORY_SEPARATOR === '\\') {
096 return
097 '10.0.10586' === PHP_WINDOWS_VERSION_MAJOR.'.'.PHP_WINDOWS_VERSION_MINOR.'.'.PHP_WINDOWS_VERSION_BUILD
098 || false !== getenv('ANSICON')
099 || 'ON' === getenv('ConEmuANSI')
100 || 'xterm' === getenv('TERM');
101 }
102
103 return function_exists('posix_isatty') && @posix_isatty($this->stream);
104 }
105 }
106