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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;
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 awailable,
* 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($fileDescriptor)) {
// These functions require a descriptor that is a real resource, not a numeric ID of it
if (\function_exists('stream_isatty') && @\stream_isatty($fileDescriptor)) {
return true;
}
$stat = @\fstat(\STDOUT);
// Check if formatted mode is S_IFCHR
return $stat ? 0020000 === ($stat['mode'] & 0170000) : 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 = $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 = $matches[2];
}
}
}
return $columns - 1;
}
}