161 lines
4.5 KiB
PHP
161 lines
4.5 KiB
PHP
<?php declare(strict_types=1);
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/*
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* This file is part of sebastian/environment.
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*
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* (c) Sebastian Bergmann <sebastian@phpunit.de>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace SebastianBergmann\Environment;
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final class Console
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{
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/**
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* @var int
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*/
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public const STDIN = 0;
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/**
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* @var int
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*/
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public const STDOUT = 1;
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/**
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* @var int
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*/
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public const STDERR = 2;
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/**
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* Returns true if STDOUT supports colorization.
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*
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* This code has been copied and adapted from
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* Symfony\Component\Console\Output\StreamOutput.
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*/
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public function hasColorSupport(): bool
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{
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if ('Hyper' === \getenv('TERM_PROGRAM')) {
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return true;
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}
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if ($this->isWindows()) {
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// @codeCoverageIgnoreStart
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return (\defined('STDOUT') && \function_exists('sapi_windows_vt100_support') && @sapi_windows_vt100_support(\STDOUT))
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|| false !== \getenv('ANSICON')
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|| 'ON' === \getenv('ConEmuANSI')
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|| 'xterm' === \getenv('TERM');
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// @codeCoverageIgnoreEnd
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}
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if (!\defined('STDOUT')) {
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// @codeCoverageIgnoreStart
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return false;
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// @codeCoverageIgnoreEnd
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}
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if ($this->isInteractive(\STDOUT)) {
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return true;
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}
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$stat = @\fstat(\STDOUT);
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// Check if formatted mode is S_IFCHR
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return $stat ? 0020000 === ($stat['mode'] & 0170000) : false;
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}
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/**
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* Returns the number of columns of the terminal.
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*
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* @codeCoverageIgnore
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*/
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public function getNumberOfColumns(): int
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{
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if ($this->isWindows()) {
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return $this->getNumberOfColumnsWindows();
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}
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if (!$this->isInteractive(\defined('STDIN') ? \STDIN : self::STDIN)) {
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return 80;
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}
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return $this->getNumberOfColumnsInteractive();
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}
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/**
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* Returns if the file descriptor is an interactive terminal or not.
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*
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* Normally, we want to use a resource as a parameter, yet sadly it's not always awailable,
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* eg when running code in interactive console (`php -a`), STDIN/STDOUT/STDERR constants are not defined.
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*
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* @param int|resource $fileDescriptor
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*/
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public function isInteractive($fileDescriptor = self::STDOUT): bool
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{
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return (\is_resource($fileDescriptor) && \function_exists('stream_isatty') && @\stream_isatty($fileDescriptor)) // stream_isatty requires that descriptor is a real resource, not numeric ID of it
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|| (\function_exists('posix_isatty') && @\posix_isatty($fileDescriptor));
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}
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private function isWindows(): bool
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{
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return \DIRECTORY_SEPARATOR === '\\';
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}
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/**
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* @codeCoverageIgnore
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*/
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private function getNumberOfColumnsInteractive(): int
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{
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if (\function_exists('shell_exec') && \preg_match('#\d+ (\d+)#', \shell_exec('stty size') ?? '', $match) === 1) {
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if ((int) $match[1] > 0) {
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return (int) $match[1];
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}
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}
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if (\function_exists('shell_exec') && \preg_match('#columns = (\d+);#', \shell_exec('stty') ?? '', $match) === 1) {
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if ((int) $match[1] > 0) {
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return (int) $match[1];
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}
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}
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return 80;
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}
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/**
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* @codeCoverageIgnore
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*/
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private function getNumberOfColumnsWindows(): int
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{
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$ansicon = \getenv('ANSICON');
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$columns = 80;
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if (\is_string($ansicon) && \preg_match('/^(\d+)x\d+ \(\d+x(\d+)\)$/', \trim($ansicon), $matches)) {
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$columns = $matches[1];
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} elseif (\function_exists('proc_open')) {
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$process = \proc_open(
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'mode CON',
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[
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1 => ['pipe', 'w'],
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2 => ['pipe', 'w'],
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],
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$pipes,
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null,
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null,
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['suppress_errors' => true]
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);
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if (\is_resource($process)) {
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$info = \stream_get_contents($pipes[1]);
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\fclose($pipes[1]);
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\fclose($pipes[2]);
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\proc_close($process);
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if (\preg_match('/--------+\r?\n.+?(\d+)\r?\n.+?(\d+)\r?\n/', $info, $matches)) {
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$columns = $matches[2];
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}
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}
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}
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return $columns - 1;
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}
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}
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