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							| @@ -0,0 +1,137 @@ | ||||
| <?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; | ||||
|  | ||||
| class Terminal | ||||
| { | ||||
|     private static $width; | ||||
|     private static $height; | ||||
|  | ||||
|     /** | ||||
|      * Gets the terminal width. | ||||
|      * | ||||
|      * @return int | ||||
|      */ | ||||
|     public function getWidth() | ||||
|     { | ||||
|         $width = getenv('COLUMNS'); | ||||
|         if (false !== $width) { | ||||
|             return (int) trim($width); | ||||
|         } | ||||
|  | ||||
|         if (null === self::$width) { | ||||
|             self::initDimensions(); | ||||
|         } | ||||
|  | ||||
|         return self::$width ?: 80; | ||||
|     } | ||||
|  | ||||
|     /** | ||||
|      * Gets the terminal height. | ||||
|      * | ||||
|      * @return int | ||||
|      */ | ||||
|     public function getHeight() | ||||
|     { | ||||
|         $height = getenv('LINES'); | ||||
|         if (false !== $height) { | ||||
|             return (int) trim($height); | ||||
|         } | ||||
|  | ||||
|         if (null === self::$height) { | ||||
|             self::initDimensions(); | ||||
|         } | ||||
|  | ||||
|         return self::$height ?: 50; | ||||
|     } | ||||
|  | ||||
|     private static function initDimensions() | ||||
|     { | ||||
|         if ('\\' === \DIRECTORY_SEPARATOR) { | ||||
|             if (preg_match('/^(\d+)x(\d+)(?: \((\d+)x(\d+)\))?$/', trim(getenv('ANSICON')), $matches)) { | ||||
|                 // extract [w, H] from "wxh (WxH)" | ||||
|                 // or [w, h] from "wxh" | ||||
|                 self::$width = (int) $matches[1]; | ||||
|                 self::$height = isset($matches[4]) ? (int) $matches[4] : (int) $matches[2]; | ||||
|             } elseif (null !== $dimensions = self::getConsoleMode()) { | ||||
|                 // extract [w, h] from "wxh" | ||||
|                 self::$width = (int) $dimensions[0]; | ||||
|                 self::$height = (int) $dimensions[1]; | ||||
|             } | ||||
|         } elseif ($sttyString = self::getSttyColumns()) { | ||||
|             if (preg_match('/rows.(\d+);.columns.(\d+);/i', $sttyString, $matches)) { | ||||
|                 // extract [w, h] from "rows h; columns w;" | ||||
|                 self::$width = (int) $matches[2]; | ||||
|                 self::$height = (int) $matches[1]; | ||||
|             } elseif (preg_match('/;.(\d+).rows;.(\d+).columns/i', $sttyString, $matches)) { | ||||
|                 // extract [w, h] from "; h rows; w columns" | ||||
|                 self::$width = (int) $matches[2]; | ||||
|                 self::$height = (int) $matches[1]; | ||||
|             } | ||||
|         } | ||||
|     } | ||||
|  | ||||
|     /** | ||||
|      * Runs and parses mode CON if it's available, suppressing any error output. | ||||
|      * | ||||
|      * @return int[]|null An array composed of the width and the height or null if it could not be parsed | ||||
|      */ | ||||
|     private static function getConsoleMode() | ||||
|     { | ||||
|         if (!\function_exists('proc_open')) { | ||||
|             return; | ||||
|         } | ||||
|  | ||||
|         $descriptorspec = [ | ||||
|             1 => ['pipe', 'w'], | ||||
|             2 => ['pipe', 'w'], | ||||
|         ]; | ||||
|         $process = proc_open('mode CON', $descriptorspec, $pipes, null, null, ['suppress_errors' => true]); | ||||
|         if (\is_resource($process)) { | ||||
|             $info = stream_get_contents($pipes[1]); | ||||
|             fclose($pipes[1]); | ||||
|             fclose($pipes[2]); | ||||
|             proc_close($process); | ||||
|  | ||||
|             if (preg_match('/--------+\r?\n.+?(\d+)\r?\n.+?(\d+)\r?\n/', $info, $matches)) { | ||||
|                 return [(int) $matches[2], (int) $matches[1]]; | ||||
|             } | ||||
|         } | ||||
|     } | ||||
|  | ||||
|     /** | ||||
|      * Runs and parses stty -a if it's available, suppressing any error output. | ||||
|      * | ||||
|      * @return string|null | ||||
|      */ | ||||
|     private static function getSttyColumns() | ||||
|     { | ||||
|         if (!\function_exists('proc_open')) { | ||||
|             return; | ||||
|         } | ||||
|  | ||||
|         $descriptorspec = [ | ||||
|             1 => ['pipe', 'w'], | ||||
|             2 => ['pipe', 'w'], | ||||
|         ]; | ||||
|  | ||||
|         $process = proc_open('stty -a | grep columns', $descriptorspec, $pipes, null, null, ['suppress_errors' => true]); | ||||
|         if (\is_resource($process)) { | ||||
|             $info = stream_get_contents($pipes[1]); | ||||
|             fclose($pipes[1]); | ||||
|             fclose($pipes[2]); | ||||
|             proc_close($process); | ||||
|  | ||||
|             return $info; | ||||
|         } | ||||
|     } | ||||
| } | ||||
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