618 lines
17 KiB
PHP
618 lines
17 KiB
PHP
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<?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\Helper;
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use Symfony\Component\Console\Output\ConsoleOutputInterface;
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use Symfony\Component\Console\Output\OutputInterface;
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use Symfony\Component\Console\Exception\LogicException;
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use Symfony\Component\Console\Terminal;
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/**
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* The ProgressBar provides helpers to display progress output.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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* @author Chris Jones <leeked@gmail.com>
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*/
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final class ProgressBar
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{
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private $barWidth = 28;
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private $barChar;
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private $emptyBarChar = '-';
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private $progressChar = '>';
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private $format;
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private $internalFormat;
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private $redrawFreq = 1;
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private $output;
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private $step = 0;
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private $max;
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private $startTime;
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private $stepWidth;
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private $percent = 0.0;
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private $formatLineCount;
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private $messages = array();
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private $overwrite = true;
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private $terminal;
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private $firstRun = true;
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private static $formatters;
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private static $formats;
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/**
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* @param OutputInterface $output An OutputInterface instance
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* @param int $max Maximum steps (0 if unknown)
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*/
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public function __construct(OutputInterface $output, $max = 0)
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{
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if ($output instanceof ConsoleOutputInterface) {
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$output = $output->getErrorOutput();
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}
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$this->output = $output;
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$this->setMaxSteps($max);
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$this->terminal = new Terminal();
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if (!$this->output->isDecorated()) {
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// disable overwrite when output does not support ANSI codes.
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$this->overwrite = false;
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// set a reasonable redraw frequency so output isn't flooded
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$this->setRedrawFrequency($max / 10);
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}
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$this->startTime = time();
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}
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/**
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* Sets a placeholder formatter for a given name.
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*
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* This method also allow you to override an existing placeholder.
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*
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* @param string $name The placeholder name (including the delimiter char like %)
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* @param callable $callable A PHP callable
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*/
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public static function setPlaceholderFormatterDefinition($name, callable $callable)
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{
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if (!self::$formatters) {
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self::$formatters = self::initPlaceholderFormatters();
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}
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self::$formatters[$name] = $callable;
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}
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/**
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* Gets the placeholder formatter for a given name.
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*
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* @param string $name The placeholder name (including the delimiter char like %)
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*
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* @return callable|null A PHP callable
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*/
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public static function getPlaceholderFormatterDefinition($name)
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{
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if (!self::$formatters) {
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self::$formatters = self::initPlaceholderFormatters();
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}
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return isset(self::$formatters[$name]) ? self::$formatters[$name] : null;
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}
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/**
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* Sets a format for a given name.
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*
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* This method also allow you to override an existing format.
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*
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* @param string $name The format name
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* @param string $format A format string
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*/
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public static function setFormatDefinition($name, $format)
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{
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if (!self::$formats) {
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self::$formats = self::initFormats();
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}
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self::$formats[$name] = $format;
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}
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/**
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* Gets the format for a given name.
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*
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* @param string $name The format name
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*
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* @return string|null A format string
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*/
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public static function getFormatDefinition($name)
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{
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if (!self::$formats) {
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self::$formats = self::initFormats();
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}
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return isset(self::$formats[$name]) ? self::$formats[$name] : null;
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}
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/**
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* Associates a text with a named placeholder.
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*
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* The text is displayed when the progress bar is rendered but only
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* when the corresponding placeholder is part of the custom format line
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* (by wrapping the name with %).
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*
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* @param string $message The text to associate with the placeholder
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* @param string $name The name of the placeholder
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*/
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public function setMessage($message, $name = 'message')
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{
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$this->messages[$name] = $message;
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}
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public function getMessage($name = 'message')
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{
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return $this->messages[$name];
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}
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/**
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* Gets the progress bar start time.
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*
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* @return int The progress bar start time
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*/
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public function getStartTime()
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{
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return $this->startTime;
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}
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/**
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* Gets the progress bar maximal steps.
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*
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* @return int The progress bar max steps
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*/
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public function getMaxSteps()
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{
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return $this->max;
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}
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/**
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* Gets the current step position.
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*
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* @return int The progress bar step
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*/
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public function getProgress()
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{
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return $this->step;
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}
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/**
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* Gets the progress bar step width.
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*
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* @return int The progress bar step width
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*/
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private function getStepWidth()
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{
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return $this->stepWidth;
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}
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/**
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* Gets the current progress bar percent.
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*
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* @return float The current progress bar percent
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*/
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public function getProgressPercent()
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{
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return $this->percent;
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}
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/**
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* Sets the progress bar width.
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*
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* @param int $size The progress bar size
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*/
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public function setBarWidth($size)
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{
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$this->barWidth = max(1, (int) $size);
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}
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/**
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* Gets the progress bar width.
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*
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* @return int The progress bar size
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*/
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public function getBarWidth()
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{
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return $this->barWidth;
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}
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/**
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* Sets the bar character.
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*
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* @param string $char A character
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*/
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public function setBarCharacter($char)
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{
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$this->barChar = $char;
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}
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/**
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* Gets the bar character.
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*
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* @return string A character
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*/
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public function getBarCharacter()
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{
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if (null === $this->barChar) {
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return $this->max ? '=' : $this->emptyBarChar;
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}
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return $this->barChar;
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}
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/**
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* Sets the empty bar character.
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*
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* @param string $char A character
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*/
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public function setEmptyBarCharacter($char)
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{
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$this->emptyBarChar = $char;
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}
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/**
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* Gets the empty bar character.
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*
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* @return string A character
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*/
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public function getEmptyBarCharacter()
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{
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return $this->emptyBarChar;
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}
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/**
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* Sets the progress bar character.
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*
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* @param string $char A character
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*/
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public function setProgressCharacter($char)
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{
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$this->progressChar = $char;
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}
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/**
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* Gets the progress bar character.
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*
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* @return string A character
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*/
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public function getProgressCharacter()
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{
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return $this->progressChar;
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}
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/**
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* Sets the progress bar format.
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*
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* @param string $format The format
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*/
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public function setFormat($format)
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{
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$this->format = null;
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$this->internalFormat = $format;
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}
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/**
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* Sets the redraw frequency.
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*
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* @param int|float $freq The frequency in steps
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*/
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public function setRedrawFrequency($freq)
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{
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$this->redrawFreq = max((int) $freq, 1);
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}
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/**
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* Starts the progress output.
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*
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* @param int|null $max Number of steps to complete the bar (0 if indeterminate), null to leave unchanged
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*/
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public function start($max = null)
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{
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$this->startTime = time();
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$this->step = 0;
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$this->percent = 0.0;
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if (null !== $max) {
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$this->setMaxSteps($max);
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}
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$this->display();
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}
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/**
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* Advances the progress output X steps.
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*
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* @param int $step Number of steps to advance
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*/
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public function advance($step = 1)
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{
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$this->setProgress($this->step + $step);
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}
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/**
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* Sets whether to overwrite the progressbar, false for new line.
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*
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* @param bool $overwrite
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*/
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public function setOverwrite($overwrite)
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{
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$this->overwrite = (bool) $overwrite;
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}
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/**
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* Sets the current progress.
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*
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* @param int $step The current progress
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*/
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public function setProgress($step)
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{
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$step = (int) $step;
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if ($this->max && $step > $this->max) {
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$this->max = $step;
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} elseif ($step < 0) {
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$step = 0;
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}
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$prevPeriod = (int) ($this->step / $this->redrawFreq);
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$currPeriod = (int) ($step / $this->redrawFreq);
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$this->step = $step;
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$this->percent = $this->max ? (float) $this->step / $this->max : 0;
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if ($prevPeriod !== $currPeriod || $this->max === $step) {
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$this->display();
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}
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}
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/**
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* Finishes the progress output.
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*/
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public function finish()
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{
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if (!$this->max) {
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$this->max = $this->step;
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}
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if ($this->step === $this->max && !$this->overwrite) {
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// prevent double 100% output
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return;
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}
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$this->setProgress($this->max);
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}
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/**
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* Outputs the current progress string.
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*/
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public function display()
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{
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if (OutputInterface::VERBOSITY_QUIET === $this->output->getVerbosity()) {
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return;
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}
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if (null === $this->format) {
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$this->setRealFormat($this->internalFormat ?: $this->determineBestFormat());
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}
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$this->overwrite($this->buildLine());
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}
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/**
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* Removes the progress bar from the current line.
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*
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* This is useful if you wish to write some output
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* while a progress bar is running.
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* Call display() to show the progress bar again.
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*/
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public function clear()
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{
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if (!$this->overwrite) {
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return;
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}
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if (null === $this->format) {
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$this->setRealFormat($this->internalFormat ?: $this->determineBestFormat());
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}
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$this->overwrite('');
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}
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/**
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* Sets the progress bar format.
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||
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*
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* @param string $format The format
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||
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*/
|
||
|
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private function setRealFormat($format)
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||
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{
|
||
|
|
// try to use the _nomax variant if available
|
||
|
|
if (!$this->max && null !== self::getFormatDefinition($format.'_nomax')) {
|
||
|
|
$this->format = self::getFormatDefinition($format.'_nomax');
|
||
|
|
} elseif (null !== self::getFormatDefinition($format)) {
|
||
|
|
$this->format = self::getFormatDefinition($format);
|
||
|
|
} else {
|
||
|
|
$this->format = $format;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->formatLineCount = substr_count($this->format, "\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the progress bar maximal steps.
|
||
|
|
*
|
||
|
|
* @param int $max The progress bar max steps
|
||
|
|
*/
|
||
|
|
private function setMaxSteps($max)
|
||
|
|
{
|
||
|
|
$this->max = max(0, (int) $max);
|
||
|
|
$this->stepWidth = $this->max ? Helper::strlen($this->max) : 4;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Overwrites a previous message to the output.
|
||
|
|
*
|
||
|
|
* @param string $message The message
|
||
|
|
*/
|
||
|
|
private function overwrite($message)
|
||
|
|
{
|
||
|
|
if ($this->overwrite) {
|
||
|
|
if (!$this->firstRun) {
|
||
|
|
// Move the cursor to the beginning of the line
|
||
|
|
$this->output->write("\x0D");
|
||
|
|
|
||
|
|
// Erase the line
|
||
|
|
$this->output->write("\x1B[2K");
|
||
|
|
|
||
|
|
// Erase previous lines
|
||
|
|
if ($this->formatLineCount > 0) {
|
||
|
|
$this->output->write(str_repeat("\x1B[1A\x1B[2K", $this->formatLineCount));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} elseif ($this->step > 0) {
|
||
|
|
$this->output->writeln('');
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->firstRun = false;
|
||
|
|
|
||
|
|
$this->output->write($message);
|
||
|
|
}
|
||
|
|
|
||
|
|
private function determineBestFormat()
|
||
|
|
{
|
||
|
|
switch ($this->output->getVerbosity()) {
|
||
|
|
// OutputInterface::VERBOSITY_QUIET: display is disabled anyway
|
||
|
|
case OutputInterface::VERBOSITY_VERBOSE:
|
||
|
|
return $this->max ? 'verbose' : 'verbose_nomax';
|
||
|
|
case OutputInterface::VERBOSITY_VERY_VERBOSE:
|
||
|
|
return $this->max ? 'very_verbose' : 'very_verbose_nomax';
|
||
|
|
case OutputInterface::VERBOSITY_DEBUG:
|
||
|
|
return $this->max ? 'debug' : 'debug_nomax';
|
||
|
|
default:
|
||
|
|
return $this->max ? 'normal' : 'normal_nomax';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private static function initPlaceholderFormatters()
|
||
|
|
{
|
||
|
|
return array(
|
||
|
|
'bar' => function (ProgressBar $bar, OutputInterface $output) {
|
||
|
|
$completeBars = floor($bar->getMaxSteps() > 0 ? $bar->getProgressPercent() * $bar->getBarWidth() : $bar->getProgress() % $bar->getBarWidth());
|
||
|
|
$display = str_repeat($bar->getBarCharacter(), $completeBars);
|
||
|
|
if ($completeBars < $bar->getBarWidth()) {
|
||
|
|
$emptyBars = $bar->getBarWidth() - $completeBars - Helper::strlenWithoutDecoration($output->getFormatter(), $bar->getProgressCharacter());
|
||
|
|
$display .= $bar->getProgressCharacter().str_repeat($bar->getEmptyBarCharacter(), $emptyBars);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $display;
|
||
|
|
},
|
||
|
|
'elapsed' => function (ProgressBar $bar) {
|
||
|
|
return Helper::formatTime(time() - $bar->getStartTime());
|
||
|
|
},
|
||
|
|
'remaining' => function (ProgressBar $bar) {
|
||
|
|
if (!$bar->getMaxSteps()) {
|
||
|
|
throw new LogicException('Unable to display the remaining time if the maximum number of steps is not set.');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$bar->getProgress()) {
|
||
|
|
$remaining = 0;
|
||
|
|
} else {
|
||
|
|
$remaining = round((time() - $bar->getStartTime()) / $bar->getProgress() * ($bar->getMaxSteps() - $bar->getProgress()));
|
||
|
|
}
|
||
|
|
|
||
|
|
return Helper::formatTime($remaining);
|
||
|
|
},
|
||
|
|
'estimated' => function (ProgressBar $bar) {
|
||
|
|
if (!$bar->getMaxSteps()) {
|
||
|
|
throw new LogicException('Unable to display the estimated time if the maximum number of steps is not set.');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$bar->getProgress()) {
|
||
|
|
$estimated = 0;
|
||
|
|
} else {
|
||
|
|
$estimated = round((time() - $bar->getStartTime()) / $bar->getProgress() * $bar->getMaxSteps());
|
||
|
|
}
|
||
|
|
|
||
|
|
return Helper::formatTime($estimated);
|
||
|
|
},
|
||
|
|
'memory' => function (ProgressBar $bar) {
|
||
|
|
return Helper::formatMemory(memory_get_usage(true));
|
||
|
|
},
|
||
|
|
'current' => function (ProgressBar $bar) {
|
||
|
|
return str_pad($bar->getProgress(), $bar->getStepWidth(), ' ', STR_PAD_LEFT);
|
||
|
|
},
|
||
|
|
'max' => function (ProgressBar $bar) {
|
||
|
|
return $bar->getMaxSteps();
|
||
|
|
},
|
||
|
|
'percent' => function (ProgressBar $bar) {
|
||
|
|
return floor($bar->getProgressPercent() * 100);
|
||
|
|
},
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
private static function initFormats()
|
||
|
|
{
|
||
|
|
return array(
|
||
|
|
'normal' => ' %current%/%max% [%bar%] %percent:3s%%',
|
||
|
|
'normal_nomax' => ' %current% [%bar%]',
|
||
|
|
|
||
|
|
'verbose' => ' %current%/%max% [%bar%] %percent:3s%% %elapsed:6s%',
|
||
|
|
'verbose_nomax' => ' %current% [%bar%] %elapsed:6s%',
|
||
|
|
|
||
|
|
'very_verbose' => ' %current%/%max% [%bar%] %percent:3s%% %elapsed:6s%/%estimated:-6s%',
|
||
|
|
'very_verbose_nomax' => ' %current% [%bar%] %elapsed:6s%',
|
||
|
|
|
||
|
|
'debug' => ' %current%/%max% [%bar%] %percent:3s%% %elapsed:6s%/%estimated:-6s% %memory:6s%',
|
||
|
|
'debug_nomax' => ' %current% [%bar%] %elapsed:6s% %memory:6s%',
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
private function buildLine()
|
||
|
|
{
|
||
|
|
$regex = "{%([a-z\-_]+)(?:\:([^%]+))?%}i";
|
||
|
|
$callback = function ($matches) {
|
||
|
|
if ($formatter = $this::getPlaceholderFormatterDefinition($matches[1])) {
|
||
|
|
$text = call_user_func($formatter, $this, $this->output);
|
||
|
|
} elseif (isset($this->messages[$matches[1]])) {
|
||
|
|
$text = $this->messages[$matches[1]];
|
||
|
|
} else {
|
||
|
|
return $matches[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($matches[2])) {
|
||
|
|
$text = sprintf('%'.$matches[2], $text);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $text;
|
||
|
|
};
|
||
|
|
$line = preg_replace_callback($regex, $callback, $this->format);
|
||
|
|
|
||
|
|
// gets string length for each sub line with multiline format
|
||
|
|
$linesLength = array_map(function ($subLine) {
|
||
|
|
return Helper::strlenWithoutDecoration($this->output->getFormatter(), rtrim($subLine, "\r"));
|
||
|
|
}, explode("\n", $line));
|
||
|
|
|
||
|
|
$linesWidth = max($linesLength);
|
||
|
|
|
||
|
|
$terminalWidth = $this->terminal->getWidth();
|
||
|
|
if ($linesWidth <= $terminalWidth) {
|
||
|
|
return $line;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->setBarWidth($this->barWidth - $linesWidth + $terminalWidth);
|
||
|
|
|
||
|
|
return preg_replace_callback($regex, $callback, $this->format);
|
||
|
|
}
|
||
|
|
}
|