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- <?php declare(strict_types=1);
- /*
- * This file is part of sebastian/environment.
- *
- * (c) Sebastian Bergmann <sebastian@phpunit.de>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace SebastianBergmann\Environment;
- use const DIRECTORY_SEPARATOR;
- use const STDIN;
- use const STDOUT;
- use function defined;
- use function fclose;
- use function fstat;
- use function function_exists;
- use function getenv;
- use function is_resource;
- use function is_string;
- use function posix_isatty;
- use function preg_match;
- use function proc_close;
- use function proc_open;
- use function sapi_windows_vt100_support;
- use function shell_exec;
- use function stream_get_contents;
- use function stream_isatty;
- use function trim;
- final class Console
- {
- /**
- * @var int
- */
- public const STDIN = 0;
- /**
- * @var int
- */
- public const STDOUT = 1;
- /**
- * @var int
- */
- public const STDERR = 2;
- /**
- * Returns true if STDOUT supports colorization.
- *
- * This code has been copied and adapted from
- * Symfony\Component\Console\Output\StreamOutput.
- */
- public function hasColorSupport(): bool
- {
- if ('Hyper' === getenv('TERM_PROGRAM')) {
- return true;
- }
- if ($this->isWindows()) {
- // @codeCoverageIgnoreStart
- return (defined('STDOUT') && function_exists('sapi_windows_vt100_support') && @sapi_windows_vt100_support(STDOUT)) ||
- false !== getenv('ANSICON') ||
- 'ON' === getenv('ConEmuANSI') ||
- 'xterm' === getenv('TERM');
- // @codeCoverageIgnoreEnd
- }
- if (!defined('STDOUT')) {
- // @codeCoverageIgnoreStart
- return false;
- // @codeCoverageIgnoreEnd
- }
- return $this->isInteractive(STDOUT);
- }
- /**
- * Returns the number of columns of the terminal.
- *
- * @codeCoverageIgnore
- */
- public function getNumberOfColumns(): int
- {
- if (!$this->isInteractive(defined('STDIN') ? STDIN : self::STDIN)) {
- return 80;
- }
- if ($this->isWindows()) {
- return $this->getNumberOfColumnsWindows();
- }
- return $this->getNumberOfColumnsInteractive();
- }
- /**
- * Returns if the file descriptor is an interactive terminal or not.
- *
- * Normally, we want to use a resource as a parameter, yet sadly it's not always available,
- * eg when running code in interactive console (`php -a`), STDIN/STDOUT/STDERR constants are not defined.
- *
- * @param int|resource $fileDescriptor
- */
- public function isInteractive($fileDescriptor = self::STDOUT): bool
- {
- if (is_resource($fileDescriptor)) {
- if (function_exists('stream_isatty') && @stream_isatty($fileDescriptor)) {
- return true;
- }
- if (function_exists('fstat')) {
- $stat = @fstat(STDOUT);
- return $stat && 0o020000 === ($stat['mode'] & 0o170000);
- }
- return false;
- }
- return function_exists('posix_isatty') && @posix_isatty($fileDescriptor);
- }
- private function isWindows(): bool
- {
- return DIRECTORY_SEPARATOR === '\\';
- }
- /**
- * @codeCoverageIgnore
- */
- private function getNumberOfColumnsInteractive(): int
- {
- if (function_exists('shell_exec') && preg_match('#\d+ (\d+)#', shell_exec('stty size') ?: '', $match) === 1) {
- if ((int) $match[1] > 0) {
- return (int) $match[1];
- }
- }
- if (function_exists('shell_exec') && preg_match('#columns = (\d+);#', shell_exec('stty') ?: '', $match) === 1) {
- if ((int) $match[1] > 0) {
- return (int) $match[1];
- }
- }
- return 80;
- }
- /**
- * @codeCoverageIgnore
- */
- private function getNumberOfColumnsWindows(): int
- {
- $ansicon = getenv('ANSICON');
- $columns = 80;
- if (is_string($ansicon) && preg_match('/^(\d+)x\d+ \(\d+x(\d+)\)$/', trim($ansicon), $matches)) {
- $columns = (int) $matches[1];
- } elseif (function_exists('proc_open')) {
- $process = proc_open(
- 'mode CON',
- [
- 1 => ['pipe', 'w'],
- 2 => ['pipe', 'w'],
- ],
- $pipes,
- null,
- null,
- ['suppress_errors' => true],
- );
- if (is_resource($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)) {
- $columns = (int) $matches[2];
- }
- }
- }
- return $columns - 1;
- }
- }
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