110 lines
2.7 KiB
PHP
110 lines
2.7 KiB
PHP
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<?php
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namespace Symfony\Components\Console\Output;
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/*
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* This file is part of the symfony framework.
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*
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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*
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* This source file is subject to the MIT license that is bundled
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* with this source code in the file LICENSE.
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*/
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/**
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* StreamOutput writes the output to a given stream.
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*
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* Usage:
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*
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* $output = new StreamOutput(fopen('php://stdout', 'w'));
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*
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* As `StreamOutput` can use any stream, you can also use a file:
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*
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* $output = new StreamOutput(fopen('/path/to/output.log', 'a', false));
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*
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* @package symfony
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* @subpackage console
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* @author Fabien Potencier <fabien.potencier@symfony-project.com>
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*/
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class StreamOutput extends Output
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{
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protected $stream;
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/**
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* Constructor.
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*
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* @param mixed $stream A stream resource
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* @param integer $verbosity The verbosity level (self::VERBOSITY_QUIET, self::VERBOSITY_NORMAL, self::VERBOSITY_VERBOSE)
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* @param Boolean $decorated Whether to decorate messages or not (null for auto-guessing)
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*/
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public function __construct($stream, $verbosity = self::VERBOSITY_NORMAL, $decorated = null)
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{
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if (!is_resource($stream) || 'stream' !== get_resource_type($stream))
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{
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throw new \InvalidArgumentException('The StreamOutput class needs a stream as its first argument.');
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}
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$this->stream = $stream;
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if (null === $decorated)
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{
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$decorated = $this->hasColorSupport($decorated);
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}
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parent::__construct($verbosity, $decorated);
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}
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/**
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* Gets the stream attached to this StreamOutput instance.
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*
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* @return resource A stream resource
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*/
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public function getStream()
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{
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return $this->stream;
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}
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/**
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* Writes a message to the output.
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*
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* @param string $message A message to write to the output
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* @param Boolean $newline Whether to add a newline or not
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*/
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public function doWrite($message, $newline)
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{
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if (false === @fwrite($this->stream, $message.($newline ? PHP_EOL : '')))
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{
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// @codeCoverageIgnoreStart
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// should never happen
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throw new \RuntimeException('Unable to write output.');
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// @codeCoverageIgnoreEnd
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}
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flush();
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}
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/**
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* Returns true if the stream supports colorization.
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*
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* Colorization is disabled if not supported by the stream:
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*
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* - windows without ansicon
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* - non tty consoles
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*
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* @return Boolean true if the stream supports colorization, false otherwise
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*/
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protected function hasColorSupport()
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{
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// @codeCoverageIgnoreStart
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if (DIRECTORY_SEPARATOR == '\\')
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{
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return false !== getenv('ANSICON');
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}
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else
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{
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return function_exists('posix_isatty') && @posix_isatty($this->stream);
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}
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// @codeCoverageIgnoreEnd
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}
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}
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