Create a "isTtySupported" static method
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@ -976,16 +976,9 @@ class Process implements \IteratorAggregate
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if ('\\' === DIRECTORY_SEPARATOR && $tty) {
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throw new RuntimeException('TTY mode is not supported on Windows platform.');
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}
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if ($tty) {
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static $isTtySupported;
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if (null === $isTtySupported) {
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$isTtySupported = (bool) @proc_open('echo 1 >/dev/null', array(array('file', '/dev/tty', 'r'), array('file', '/dev/tty', 'w'), array('file', '/dev/tty', 'w')), $pipes);
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}
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if (!$isTtySupported) {
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throw new RuntimeException('TTY mode requires /dev/tty to be read/writable.');
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}
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if ($tty && !self::isTtySupported()) {
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throw new RuntimeException('TTY mode requires /dev/tty to be read/writable.');
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}
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$this->tty = (bool) $tty;
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@ -1169,6 +1162,22 @@ class Process implements \IteratorAggregate
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}
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}
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/**
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* Returns whether TTY is supported on the current operating system.
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*
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* @return bool
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*/
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public static function isTtySupported()
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{
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static $isTtySupported;
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if (null === $isTtySupported) {
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$isTtySupported = (bool) @proc_open('echo 1 >/dev/null', array(array('file', '/dev/tty', 'r'), array('file', '/dev/tty', 'w'), array('file', '/dev/tty', 'w')), $pipes);
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}
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return $isTtySupported;
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}
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/**
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* Returns whether PTY is supported on the current operating system.
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*
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