341 lines
9.7 KiB
PHP
341 lines
9.7 KiB
PHP
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<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006-2016 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: yunwuxin <448901948@qq.com>
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// +----------------------------------------------------------------------
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namespace think\console\output;
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use think\console\Input;
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use think\console\Output;
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use think\console\output\question\Choice;
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use think\console\output\question\Confirmation;
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class Ask
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{
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private static $stty;
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private static $shell;
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/** @var Input */
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protected $input;
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/** @var Output */
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protected $output;
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/** @var Question */
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protected $question;
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public function __construct(Input $input, Output $output, Question $question)
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{
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$this->input = $input;
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$this->output = $output;
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$this->question = $question;
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}
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public function run()
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{
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if (!$this->input->isInteractive()) {
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return $this->question->getDefault();
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}
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if (!$this->question->getValidator()) {
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return $this->doAsk();
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}
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$that = $this;
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$interviewer = function () use ($that) {
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return $that->doAsk();
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};
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return $this->validateAttempts($interviewer);
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}
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protected function doAsk()
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{
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$this->writePrompt();
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$inputStream = STDIN;
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$autocomplete = $this->question->getAutocompleterValues();
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if (null === $autocomplete || !$this->hasSttyAvailable()) {
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$ret = false;
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if ($this->question->isHidden()) {
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try {
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$ret = trim($this->getHiddenResponse($inputStream));
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} catch (\RuntimeException $e) {
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if (!$this->question->isHiddenFallback()) {
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throw $e;
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}
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}
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}
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if (false === $ret) {
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$ret = fgets($inputStream, 4096);
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if (false === $ret) {
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throw new \RuntimeException('Aborted');
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}
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$ret = trim($ret);
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}
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} else {
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$ret = trim($this->autocomplete($inputStream));
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}
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$ret = strlen($ret) > 0 ? $ret : $this->question->getDefault();
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if ($normalizer = $this->question->getNormalizer()) {
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return $normalizer($ret);
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}
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return $ret;
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}
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private function autocomplete($inputStream)
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{
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$autocomplete = $this->question->getAutocompleterValues();
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$ret = '';
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$i = 0;
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$ofs = -1;
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$matches = $autocomplete;
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$numMatches = count($matches);
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$sttyMode = shell_exec('stty -g');
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shell_exec('stty -icanon -echo');
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while (!feof($inputStream)) {
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$c = fread($inputStream, 1);
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if ("\177" === $c) {
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if (0 === $numMatches && 0 !== $i) {
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--$i;
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$this->output->write("\033[1D");
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}
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if ($i === 0) {
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$ofs = -1;
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$matches = $autocomplete;
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$numMatches = count($matches);
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} else {
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$numMatches = 0;
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}
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$ret = substr($ret, 0, $i);
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} elseif ("\033" === $c) {
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$c .= fread($inputStream, 2);
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if (isset($c[2]) && ('A' === $c[2] || 'B' === $c[2])) {
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if ('A' === $c[2] && -1 === $ofs) {
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$ofs = 0;
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}
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if (0 === $numMatches) {
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continue;
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}
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$ofs += ('A' === $c[2]) ? -1 : 1;
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$ofs = ($numMatches + $ofs) % $numMatches;
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}
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} elseif (ord($c) < 32) {
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if ("\t" === $c || "\n" === $c) {
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if ($numMatches > 0 && -1 !== $ofs) {
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$ret = $matches[$ofs];
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$this->output->write(substr($ret, $i));
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$i = strlen($ret);
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}
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if ("\n" === $c) {
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$this->output->write($c);
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break;
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}
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$numMatches = 0;
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}
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continue;
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} else {
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$this->output->write($c);
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$ret .= $c;
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++$i;
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$numMatches = 0;
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$ofs = 0;
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foreach ($autocomplete as $value) {
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if (0 === strpos($value, $ret) && $i !== strlen($value)) {
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$matches[$numMatches++] = $value;
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}
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}
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}
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$this->output->write("\033[K");
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if ($numMatches > 0 && -1 !== $ofs) {
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$this->output->write("\0337");
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$this->output->highlight(substr($matches[$ofs], $i));
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$this->output->write("\0338");
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}
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}
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shell_exec(sprintf('stty %s', $sttyMode));
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return $ret;
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}
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protected function getHiddenResponse($inputStream)
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{
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if ('\\' === DIRECTORY_SEPARATOR) {
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$exe = __DIR__ . '/../bin/hiddeninput.exe';
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$value = rtrim(shell_exec($exe));
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$this->output->writeln('');
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if (isset($tmpExe)) {
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unlink($tmpExe);
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}
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return $value;
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}
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if ($this->hasSttyAvailable()) {
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$sttyMode = shell_exec('stty -g');
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shell_exec('stty -echo');
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$value = fgets($inputStream, 4096);
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shell_exec(sprintf('stty %s', $sttyMode));
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if (false === $value) {
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throw new \RuntimeException('Aborted');
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}
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$value = trim($value);
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$this->output->writeln('');
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return $value;
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}
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if (false !== $shell = $this->getShell()) {
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$readCmd = $shell === 'csh' ? 'set mypassword = $<' : 'read -r mypassword';
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$command = sprintf("/usr/bin/env %s -c 'stty -echo; %s; stty echo; echo \$mypassword'", $shell, $readCmd);
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$value = rtrim(shell_exec($command));
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$this->output->writeln('');
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return $value;
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}
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throw new \RuntimeException('Unable to hide the response.');
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}
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protected function validateAttempts($interviewer)
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{
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/** @var \Exception $error */
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$error = null;
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$attempts = $this->question->getMaxAttempts();
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while (null === $attempts || $attempts--) {
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if (null !== $error) {
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$this->output->error($error->getMessage());
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}
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try {
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return call_user_func($this->question->getValidator(), $interviewer());
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} catch (\Exception $error) {
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}
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}
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throw $error;
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}
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/**
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* 显示问题的提示信息
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*/
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protected function writePrompt()
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{
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$text = $this->question->getQuestion();
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$default = $this->question->getDefault();
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switch (true) {
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case null === $default:
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$text = sprintf(' <info>%s</info>:', $text);
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break;
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case $this->question instanceof Confirmation:
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$text = sprintf(' <info>%s (yes/no)</info> [<comment>%s</comment>]:', $text, $default ? 'yes' : 'no');
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break;
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case $this->question instanceof Choice && $this->question->isMultiselect():
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$choices = $this->question->getChoices();
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$default = explode(',', $default);
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foreach ($default as $key => $value) {
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$default[$key] = $choices[trim($value)];
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}
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$text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, implode(', ', $default));
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break;
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case $this->question instanceof Choice:
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$choices = $this->question->getChoices();
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$text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, $choices[$default]);
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break;
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default:
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$text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, $default);
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}
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$this->output->writeln($text);
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if ($this->question instanceof Choice) {
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$width = max(array_map('strlen', array_keys($this->question->getChoices())));
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foreach ($this->question->getChoices() as $key => $value) {
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$this->output->writeln(sprintf(" [<comment>%-${width}s</comment>] %s", $key, $value));
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}
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}
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$this->output->write(' > ');
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}
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private function getShell()
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{
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if (null !== self::$shell) {
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return self::$shell;
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}
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self::$shell = false;
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if (file_exists('/usr/bin/env')) {
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$test = "/usr/bin/env %s -c 'echo OK' 2> /dev/null";
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foreach (['bash', 'zsh', 'ksh', 'csh'] as $sh) {
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if ('OK' === rtrim(shell_exec(sprintf($test, $sh)))) {
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self::$shell = $sh;
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break;
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}
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}
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}
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return self::$shell;
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}
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private function hasSttyAvailable()
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{
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if (null !== self::$stty) {
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return self::$stty;
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}
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exec('stty 2>&1', $output, $exitcode);
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return self::$stty = $exitcode === 0;
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}
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}
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