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1 <?php
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2
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3 /*
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4 * This file is part of the Symfony package.
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5 *
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6 * (c) Fabien Potencier <fabien@symfony.com>
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7 *
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8 * For the full copyright and license information, please view the LICENSE
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9 * file that was distributed with this source code.
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10 */
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11
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12 namespace Symfony\Component\Console\Helper;
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13
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14 use Symfony\Component\Console\Exception\LogicException;
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15 use Symfony\Component\Console\Formatter\OutputFormatter;
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16 use Symfony\Component\Console\Input\InputInterface;
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17 use Symfony\Component\Console\Output\OutputInterface;
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18 use Symfony\Component\Console\Question\ChoiceQuestion;
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19 use Symfony\Component\Console\Question\ConfirmationQuestion;
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20 use Symfony\Component\Console\Question\Question;
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21 use Symfony\Component\Console\Style\SymfonyStyle;
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22
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23 /**
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24 * Symfony Style Guide compliant question helper.
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25 *
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26 * @author Kevin Bond <kevinbond@gmail.com>
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27 */
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28 class SymfonyQuestionHelper extends QuestionHelper
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29 {
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30 /**
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31 * {@inheritdoc}
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32 *
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33 * To be removed in 4.0
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34 */
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35 public function ask(InputInterface $input, OutputInterface $output, Question $question)
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36 {
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37 $validator = $question->getValidator();
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38 $question->setValidator(function ($value) use ($validator) {
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39 if (null !== $validator) {
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40 $value = $validator($value);
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41 } else {
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42 // make required
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43 if (!\is_array($value) && !\is_bool($value) && 0 === \strlen($value)) {
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44 @trigger_error('The default question validator is deprecated since Symfony 3.3 and will not be used anymore in version 4.0. Set a custom question validator if needed.', E_USER_DEPRECATED);
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45
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46 throw new LogicException('A value is required.');
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47 }
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48 }
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49
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50 return $value;
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51 });
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52
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53 return parent::ask($input, $output, $question);
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54 }
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55
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56 /**
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57 * {@inheritdoc}
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58 */
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59 protected function writePrompt(OutputInterface $output, Question $question)
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60 {
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61 $text = OutputFormatter::escapeTrailingBackslash($question->getQuestion());
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62 $default = $question->getDefault();
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63
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64 switch (true) {
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65 case null === $default:
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66 $text = sprintf(' <info>%s</info>:', $text);
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67
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68 break;
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69
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70 case $question instanceof ConfirmationQuestion:
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71 $text = sprintf(' <info>%s (yes/no)</info> [<comment>%s</comment>]:', $text, $default ? 'yes' : 'no');
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72
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73 break;
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74
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75 case $question instanceof ChoiceQuestion && $question->isMultiselect():
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76 $choices = $question->getChoices();
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77 $default = explode(',', $default);
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78
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79 foreach ($default as $key => $value) {
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80 $default[$key] = $choices[trim($value)];
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81 }
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82
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83 $text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, OutputFormatter::escape(implode(', ', $default)));
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84
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85 break;
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86
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87 case $question instanceof ChoiceQuestion:
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88 $choices = $question->getChoices();
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89 $text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, OutputFormatter::escape(isset($choices[$default]) ? $choices[$default] : $default));
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90
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91 break;
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92
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93 default:
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94 $text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, OutputFormatter::escape($default));
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95 }
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96
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97 $output->writeln($text);
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98
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99 if ($question instanceof ChoiceQuestion) {
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100 $width = max(array_map('strlen', array_keys($question->getChoices())));
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101
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102 foreach ($question->getChoices() as $key => $value) {
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103 $output->writeln(sprintf(" [<comment>%-${width}s</comment>] %s", $key, $value));
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104 }
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105 }
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106
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107 $output->write(' > ');
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108 }
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109
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110 /**
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111 * {@inheritdoc}
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112 */
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113 protected function writeError(OutputInterface $output, \Exception $error)
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114 {
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115 if ($output instanceof SymfonyStyle) {
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116 $output->newLine();
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117 $output->error($error->getMessage());
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118
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119 return;
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120 }
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121
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122 parent::writeError($output, $error);
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123 }
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124 }
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