Chris@0: <?php
Chris@0: /*
Chris@2:  * This file is part of sebastian/environment.
Chris@0:  *
Chris@0:  * (c) Sebastian Bergmann <sebastian@phpunit.de>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@2: declare(strict_types=1);
Chris@2: 
Chris@0: namespace SebastianBergmann\Environment;
Chris@0: 
Chris@2: final class Console
Chris@0: {
Chris@2:     /**
Chris@2:      * @var int
Chris@2:      */
Chris@0:     const STDIN  = 0;
Chris@2: 
Chris@2:     /**
Chris@2:      * @var int
Chris@2:      */
Chris@0:     const STDOUT = 1;
Chris@2: 
Chris@2:     /**
Chris@2:      * @var int
Chris@2:      */
Chris@0:     const STDERR = 2;
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns true if STDOUT supports colorization.
Chris@0:      *
Chris@0:      * This code has been copied and adapted from
Chris@0:      * Symfony\Component\Console\Output\OutputStream.
Chris@0:      */
Chris@2:     public function hasColorSupport(): bool
Chris@0:     {
Chris@2:         if ($this->isWindows()) {
Chris@2:             // @codeCoverageIgnoreStart
Chris@2:             return false !== \getenv('ANSICON') || 'ON' === \getenv('ConEmuANSI') || 'xterm' === \getenv('TERM');
Chris@2:             // @codeCoverageIgnoreEnd
Chris@0:         }
Chris@0: 
Chris@2:         if (!\defined('STDOUT')) {
Chris@2:             // @codeCoverageIgnoreStart
Chris@0:             return false;
Chris@2:             // @codeCoverageIgnoreEnd
Chris@0:         }
Chris@0: 
Chris@0:         return $this->isInteractive(STDOUT);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns the number of columns of the terminal.
Chris@0:      *
Chris@2:      * @codeCoverageIgnore
Chris@0:      */
Chris@2:     public function getNumberOfColumns(): int
Chris@0:     {
Chris@2:         if ($this->isWindows()) {
Chris@2:             return $this->getNumberOfColumnsWindows();
Chris@0:         }
Chris@0: 
Chris@0:         if (!$this->isInteractive(self::STDIN)) {
Chris@0:             return 80;
Chris@0:         }
Chris@0: 
Chris@2:         return $this->getNumberOfColumnsInteractive();
Chris@2:     }
Chris@2: 
Chris@2:     /**
Chris@2:      * Returns if the file descriptor is an interactive terminal or not.
Chris@2:      *
Chris@2:      * @param int|resource $fileDescriptor
Chris@2:      */
Chris@2:     public function isInteractive($fileDescriptor = self::STDOUT): bool
Chris@2:     {
Chris@2:         return \function_exists('posix_isatty') && @\posix_isatty($fileDescriptor);
Chris@2:     }
Chris@2: 
Chris@2:     private function isWindows(): bool
Chris@2:     {
Chris@2:         return DIRECTORY_SEPARATOR === '\\';
Chris@2:     }
Chris@2: 
Chris@2:     /**
Chris@2:      * @codeCoverageIgnore
Chris@2:      */
Chris@2:     private function getNumberOfColumnsInteractive(): int
Chris@2:     {
Chris@2:         if (\function_exists('shell_exec') && \preg_match('#\d+ (\d+)#', \shell_exec('stty size') ?? '', $match) === 1) {
Chris@0:             if ((int) $match[1] > 0) {
Chris@0:                 return (int) $match[1];
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@2:         if (\function_exists('shell_exec') && \preg_match('#columns = (\d+);#', \shell_exec('stty') ?? '', $match) === 1) {
Chris@0:             if ((int) $match[1] > 0) {
Chris@0:                 return (int) $match[1];
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         return 80;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@2:      * @codeCoverageIgnore
Chris@0:      */
Chris@2:     private function getNumberOfColumnsWindows(): int
Chris@0:     {
Chris@2:         $ansicon = \getenv('ANSICON');
Chris@2:         $columns = 80;
Chris@2: 
Chris@2:         if (\is_string($ansicon) && \preg_match('/^(\d+)x\d+ \(\d+x(\d+)\)$/', \trim($ansicon), $matches)) {
Chris@2:             $columns = $matches[1];
Chris@2:         } elseif (\function_exists('proc_open')) {
Chris@2:             $process = \proc_open(
Chris@2:                 'mode CON',
Chris@2:                 [
Chris@2:                     1 => ['pipe', 'w'],
Chris@2:                     2 => ['pipe', 'w']
Chris@2:                 ],
Chris@2:                 $pipes,
Chris@2:                 null,
Chris@2:                 null,
Chris@2:                 ['suppress_errors' => true]
Chris@2:             );
Chris@2: 
Chris@2:             if (\is_resource($process)) {
Chris@2:                 $info = \stream_get_contents($pipes[1]);
Chris@2: 
Chris@2:                 \fclose($pipes[1]);
Chris@2:                 \fclose($pipes[2]);
Chris@2:                 \proc_close($process);
Chris@2: 
Chris@2:                 if (\preg_match('/--------+\r?\n.+?(\d+)\r?\n.+?(\d+)\r?\n/', $info, $matches)) {
Chris@2:                     $columns = $matches[2];
Chris@2:                 }
Chris@2:             }
Chris@2:         }
Chris@2: 
Chris@2:         return $columns - 1;
Chris@0:     }
Chris@0: }