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