/**
* Asks a question to the user.
*
* @param InputInterface $input An InputInterface instance
* @param OutputInterface $output An OutputInterface instance
* @param Question $question The question to ask
*
* @return string The user answer
*
* @throws RuntimeException If there is no data to read in the input stream
*/
public function ask(InputInterface $input, OutputInterface $output, Question $question)
{
if ($output instanceof ConsoleOutputInterface) {
$output = $output->getErrorOutput();
}
if (!$input->isInteractive()) {
return $question->getDefault();
}
if ($input instanceof StreamableInputInterface && ($stream = $input->getStream())) {
$this->inputStream = $stream;
}
if (!$question->getValidator()) {
return $this->doAsk($output, $question);
}
$interviewer = function () use($output, $question) {
return $this->doAsk($output, $question);
};
return $this->validateAttempts($interviewer, $output, $question);
}
/**
* Configures the input and output instances based on the user arguments and options.
*
* @param InputInterface $input An InputInterface instance
* @param OutputInterface $output An OutputInterface instance
*/
protected function configureIO(InputInterface $input, OutputInterface $output)
{
if (true === $input->hasParameterOption(array('--ansi'), true)) {
$output->setDecorated(true);
} elseif (true === $input->hasParameterOption(array('--no-ansi'), true)) {
$output->setDecorated(false);
}
if (true === $input->hasParameterOption(array('--no-interaction', '-n'), true)) {
$input->setInteractive(false);
} elseif (function_exists('posix_isatty')) {
$inputStream = null;
if ($input instanceof StreamableInputInterface) {
$inputStream = $input->getStream();
}
// This check ensures that calling QuestionHelper::setInputStream() works
// To be removed in 4.0 (in the same time as QuestionHelper::setInputStream)
if (!$inputStream && $this->getHelperSet()->has('question')) {
$inputStream = $this->getHelperSet()->get('question')->getInputStream(false);
}
if (!@posix_isatty($inputStream) && false === getenv('SHELL_INTERACTIVE')) {
$input->setInteractive(false);
}
}
if (true === $input->hasParameterOption(array('--quiet', '-q'), true)) {
$output->setVerbosity(OutputInterface::VERBOSITY_QUIET);
$input->setInteractive(false);
} else {
if ($input->hasParameterOption('-vvv', true) || $input->hasParameterOption('--verbose=3', true) || $input->getParameterOption('--verbose', false, true) === 3) {
$output->setVerbosity(OutputInterface::VERBOSITY_DEBUG);
} elseif ($input->hasParameterOption('-vv', true) || $input->hasParameterOption('--verbose=2', true) || $input->getParameterOption('--verbose', false, true) === 2) {
$output->setVerbosity(OutputInterface::VERBOSITY_VERY_VERBOSE);
} elseif ($input->hasParameterOption('-v', true) || $input->hasParameterOption('--verbose=1', true) || $input->hasParameterOption('--verbose', true) || $input->getParameterOption('--verbose', false, true)) {
$output->setVerbosity(OutputInterface::VERBOSITY_VERBOSE);
}
}
}
