436 lines
12 KiB
PHP
436 lines
12 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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 Symfony\Component\Console\Style;
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use Symfony\Component\Console\Application;
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use Symfony\Component\Console\Exception\RuntimeException;
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use Symfony\Component\Console\Formatter\OutputFormatter;
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use Symfony\Component\Console\Helper\Helper;
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use Symfony\Component\Console\Helper\ProgressBar;
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use Symfony\Component\Console\Helper\SymfonyQuestionHelper;
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use Symfony\Component\Console\Helper\Table;
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Output\BufferedOutput;
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use Symfony\Component\Console\Output\OutputInterface;
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use Symfony\Component\Console\Question\ChoiceQuestion;
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use Symfony\Component\Console\Question\ConfirmationQuestion;
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use Symfony\Component\Console\Question\Question;
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/**
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* Output decorator helpers for the Symfony Style Guide.
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*
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* @author Kevin Bond <kevinbond@gmail.com>
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*/
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class SymfonyStyle extends OutputStyle
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{
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const MAX_LINE_LENGTH = 120;
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private $input;
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private $questionHelper;
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private $progressBar;
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private $lineLength;
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private $bufferedOutput;
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/**
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* @param InputInterface $input
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* @param OutputInterface $output
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*/
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public function __construct(InputInterface $input, OutputInterface $output)
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{
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$this->input = $input;
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$this->bufferedOutput = new BufferedOutput($output->getVerbosity(), false, clone $output->getFormatter());
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// Windows cmd wraps lines as soon as the terminal width is reached, whether there are following chars or not.
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$this->lineLength = min($this->getTerminalWidth() - (int) (DIRECTORY_SEPARATOR === '\\'), self::MAX_LINE_LENGTH);
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parent::__construct($output);
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}
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/**
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* Formats a message as a block of text.
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*
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* @param string|array $messages The message to write in the block
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* @param string|null $type The block type (added in [] on first line)
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* @param string|null $style The style to apply to the whole block
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* @param string $prefix The prefix for the block
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* @param bool $padding Whether to add vertical padding
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*/
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public function block($messages, $type = null, $style = null, $prefix = ' ', $padding = false)
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{
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$messages = is_array($messages) ? array_values($messages) : array($messages);
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$this->autoPrependBlock();
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$this->writeln($this->createBlock($messages, $type, $style, $prefix, $padding, true));
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$this->newLine();
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}
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/**
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* {@inheritdoc}
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*/
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public function title($message)
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{
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$this->autoPrependBlock();
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$this->writeln(array(
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sprintf('<comment>%s</>', $message),
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sprintf('<comment>%s</>', str_repeat('=', Helper::strlenWithoutDecoration($this->getFormatter(), $message))),
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));
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$this->newLine();
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}
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/**
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* {@inheritdoc}
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*/
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public function section($message)
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{
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$this->autoPrependBlock();
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$this->writeln(array(
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sprintf('<comment>%s</>', $message),
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sprintf('<comment>%s</>', str_repeat('-', Helper::strlenWithoutDecoration($this->getFormatter(), $message))),
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));
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$this->newLine();
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}
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/**
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* {@inheritdoc}
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*/
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public function listing(array $elements)
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{
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$this->autoPrependText();
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$elements = array_map(function ($element) {
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return sprintf(' * %s', $element);
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}, $elements);
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$this->writeln($elements);
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$this->newLine();
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}
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/**
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* {@inheritdoc}
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*/
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public function text($message)
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{
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$this->autoPrependText();
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$messages = is_array($message) ? array_values($message) : array($message);
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foreach ($messages as $message) {
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$this->writeln(sprintf(' %s', $message));
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}
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}
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/**
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* Formats a command comment.
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*
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* @param string|array $message
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*/
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public function comment($message)
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{
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$messages = is_array($message) ? array_values($message) : array($message);
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$this->autoPrependBlock();
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$this->writeln($this->createBlock($messages, null, null, '<fg=default;bg=default> // </>'));
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$this->newLine();
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}
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/**
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* {@inheritdoc}
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*/
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public function success($message)
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{
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$this->block($message, 'OK', 'fg=black;bg=green', ' ', true);
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}
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/**
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* {@inheritdoc}
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*/
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public function error($message)
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{
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$this->block($message, 'ERROR', 'fg=white;bg=red', ' ', true);
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}
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/**
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* {@inheritdoc}
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*/
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public function warning($message)
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{
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$this->block($message, 'WARNING', 'fg=white;bg=red', ' ', true);
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}
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/**
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* {@inheritdoc}
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*/
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public function note($message)
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{
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$this->block($message, 'NOTE', 'fg=yellow', ' ! ');
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}
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/**
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* {@inheritdoc}
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*/
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public function caution($message)
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{
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$this->block($message, 'CAUTION', 'fg=white;bg=red', ' ! ', true);
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}
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/**
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* {@inheritdoc}
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*/
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public function table(array $headers, array $rows)
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{
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$style = clone Table::getStyleDefinition('symfony-style-guide');
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$style->setCellHeaderFormat('<info>%s</info>');
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$table = new Table($this);
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$table->setHeaders($headers);
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$table->setRows($rows);
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$table->setStyle($style);
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$table->render();
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$this->newLine();
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}
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/**
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* {@inheritdoc}
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*/
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public function ask($question, $default = null, $validator = null)
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{
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$question = new Question($question, $default);
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$question->setValidator($validator);
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return $this->askQuestion($question);
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}
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/**
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* {@inheritdoc}
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*/
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public function askHidden($question, $validator = null)
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{
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$question = new Question($question);
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$question->setHidden(true);
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$question->setValidator($validator);
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return $this->askQuestion($question);
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}
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/**
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* {@inheritdoc}
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*/
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public function confirm($question, $default = true)
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{
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return $this->askQuestion(new ConfirmationQuestion($question, $default));
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}
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/**
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* {@inheritdoc}
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*/
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public function choice($question, array $choices, $default = null)
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{
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if (null !== $default) {
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$values = array_flip($choices);
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$default = $values[$default];
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}
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return $this->askQuestion(new ChoiceQuestion($question, $choices, $default));
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}
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/**
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* {@inheritdoc}
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*/
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public function progressStart($max = 0)
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{
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$this->progressBar = $this->createProgressBar($max);
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$this->progressBar->start();
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}
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/**
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* {@inheritdoc}
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*/
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public function progressAdvance($step = 1)
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{
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$this->getProgressBar()->advance($step);
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}
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/**
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* {@inheritdoc}
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*/
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public function progressFinish()
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{
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$this->getProgressBar()->finish();
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$this->newLine(2);
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$this->progressBar = null;
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}
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/**
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* {@inheritdoc}
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*/
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public function createProgressBar($max = 0)
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{
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$progressBar = parent::createProgressBar($max);
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if ('\\' !== DIRECTORY_SEPARATOR) {
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$progressBar->setEmptyBarCharacter('░'); // light shade character \u2591
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$progressBar->setProgressCharacter('');
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$progressBar->setBarCharacter('▓'); // dark shade character \u2593
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}
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return $progressBar;
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}
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/**
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* @param Question $question
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*
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* @return string
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*/
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public function askQuestion(Question $question)
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{
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if ($this->input->isInteractive()) {
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$this->autoPrependBlock();
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}
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if (!$this->questionHelper) {
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$this->questionHelper = new SymfonyQuestionHelper();
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}
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$answer = $this->questionHelper->ask($this->input, $this, $question);
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if ($this->input->isInteractive()) {
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$this->newLine();
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$this->bufferedOutput->write("\n");
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}
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return $answer;
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}
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/**
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* {@inheritdoc}
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*/
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public function writeln($messages, $type = self::OUTPUT_NORMAL)
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{
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parent::writeln($messages, $type);
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$this->bufferedOutput->writeln($this->reduceBuffer($messages), $type);
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}
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/**
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* {@inheritdoc}
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*/
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public function write($messages, $newline = false, $type = self::OUTPUT_NORMAL)
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{
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parent::write($messages, $newline, $type);
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$this->bufferedOutput->write($this->reduceBuffer($messages), $newline, $type);
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}
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/**
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* {@inheritdoc}
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*/
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public function newLine($count = 1)
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{
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parent::newLine($count);
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$this->bufferedOutput->write(str_repeat("\n", $count));
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}
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/**
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* @return ProgressBar
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*/
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private function getProgressBar()
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{
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if (!$this->progressBar) {
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throw new RuntimeException('The ProgressBar is not started.');
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}
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return $this->progressBar;
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}
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private function getTerminalWidth()
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{
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$application = new Application();
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$dimensions = $application->getTerminalDimensions();
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return $dimensions[0] ?: self::MAX_LINE_LENGTH;
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}
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private function autoPrependBlock()
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{
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$chars = substr(str_replace(PHP_EOL, "\n", $this->bufferedOutput->fetch()), -2);
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if (!isset($chars[0])) {
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return $this->newLine(); //empty history, so we should start with a new line.
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}
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//Prepend new line for each non LF chars (This means no blank line was output before)
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$this->newLine(2 - substr_count($chars, "\n"));
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}
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private function autoPrependText()
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{
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$fetched = $this->bufferedOutput->fetch();
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//Prepend new line if last char isn't EOL:
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if ("\n" !== substr($fetched, -1)) {
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$this->newLine();
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}
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}
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private function reduceBuffer($messages)
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{
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// We need to know if the two last chars are PHP_EOL
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// Preserve the last 4 chars inserted (PHP_EOL on windows is two chars) in the history buffer
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return array_map(function ($value) {
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return substr($value, -4);
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}, array_merge(array($this->bufferedOutput->fetch()), (array) $messages));
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}
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private function createBlock($messages, $type = null, $style = null, $prefix = ' ', $padding = false, $escape = false)
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{
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$indentLength = 0;
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$prefixLength = Helper::strlenWithoutDecoration($this->getFormatter(), $prefix);
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$lines = array();
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if (null !== $type) {
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$type = sprintf('[%s] ', $type);
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$indentLength = strlen($type);
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$lineIndentation = str_repeat(' ', $indentLength);
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}
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// wrap and add newlines for each element
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foreach ($messages as $key => $message) {
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if ($escape) {
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$message = OutputFormatter::escape($message);
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}
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$lines = array_merge($lines, explode(PHP_EOL, wordwrap($message, $this->lineLength - $prefixLength - $indentLength, PHP_EOL, true)));
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if (count($messages) > 1 && $key < count($messages) - 1) {
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$lines[] = '';
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}
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}
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$firstLineIndex = 0;
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if ($padding && $this->isDecorated()) {
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$firstLineIndex = 1;
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array_unshift($lines, '');
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$lines[] = '';
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}
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foreach ($lines as $i => &$line) {
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if (null !== $type) {
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$line = $firstLineIndex === $i ? $type.$line : $lineIndentation.$line;
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}
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$line = $prefix.$line;
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$line .= str_repeat(' ', $this->lineLength - Helper::strlenWithoutDecoration($this->getFormatter(), $line));
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if ($style) {
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$line = sprintf('<%s>%s</>', $style, $line);
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}
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}
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return $lines;
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}
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}
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