Файл: concrete5.7.5.6/concrete/vendor/symfony/console/Helper/ProgressBar.php
Строк: 482
<?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 SymfonyComponentConsoleHelper;
use SymfonyComponentConsoleOutputOutputInterface;
/**
* The ProgressBar provides helpers to display progress output.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Chris Jones <leeked@gmail.com>
*/
class ProgressBar
{
// options
private $barWidth = 28;
private $barChar;
private $emptyBarChar = '-';
private $progressChar = '>';
private $format = null;
private $redrawFreq = 1;
/**
* @var OutputInterface
*/
private $output;
private $step = 0;
private $max;
private $startTime;
private $stepWidth;
private $percent = 0.0;
private $lastMessagesLength = 0;
private $formatLineCount;
private $messages;
private $overwrite = true;
private static $formatters;
private static $formats;
/**
* Constructor.
*
* @param OutputInterface $output An OutputInterface instance
* @param int $max Maximum steps (0 if unknown)
*/
public function __construct(OutputInterface $output, $max = 0)
{
$this->output = $output;
$this->setMaxSteps($max);
if (!$this->output->isDecorated()) {
// disable overwrite when output does not support ANSI codes.
$this->overwrite = false;
if ($this->max > 10) {
// set a reasonable redraw frequency so output isn't flooded
$this->setRedrawFrequency($max / 10);
}
}
$this->setFormat($this->determineBestFormat());
$this->startTime = time();
}
/**
* Sets a placeholder formatter for a given name.
*
* This method also allow you to override an existing placeholder.
*
* @param string $name The placeholder name (including the delimiter char like %)
* @param callable $callable A PHP callable
*/
public static function setPlaceholderFormatterDefinition($name, $callable)
{
if (!self::$formatters) {
self::$formatters = self::initPlaceholderFormatters();
}
self::$formatters[$name] = $callable;
}
/**
* Gets the placeholder formatter for a given name.
*
* @param string $name The placeholder name (including the delimiter char like %)
*
* @return callable|null A PHP callable
*/
public static function getPlaceholderFormatterDefinition($name)
{
if (!self::$formatters) {
self::$formatters = self::initPlaceholderFormatters();
}
return isset(self::$formatters[$name]) ? self::$formatters[$name] : null;
}
/**
* Sets a format for a given name.
*
* This method also allow you to override an existing format.
*
* @param string $name The format name
* @param string $format A format string
*/
public static function setFormatDefinition($name, $format)
{
if (!self::$formats) {
self::$formats = self::initFormats();
}
self::$formats[$name] = $format;
}
/**
* Gets the format for a given name.
*
* @param string $name The format name
*
* @return string|null A format string
*/
public static function getFormatDefinition($name)
{
if (!self::$formats) {
self::$formats = self::initFormats();
}
return isset(self::$formats[$name]) ? self::$formats[$name] : null;
}
public function setMessage($message, $name = 'message')
{
$this->messages[$name] = $message;
}
public function getMessage($name = 'message')
{
return $this->messages[$name];
}
/**
* Gets the progress bar start time.
*
* @return int The progress bar start time
*/
public function getStartTime()
{
return $this->startTime;
}
/**
* Gets the progress bar maximal steps.
*
* @return int The progress bar max steps
*/
public function getMaxSteps()
{
return $this->max;
}
/**
* Gets the progress bar step.
*
* @deprecated since version 2.6, to be removed in 3.0. Use {@link getProgress()} instead.
*
* @return int The progress bar step
*/
public function getStep()
{
@trigger_error('The '.__METHOD__.' method is deprecated since version 2.6 and will be removed in 3.0. Use the getProgress() method instead.', E_USER_DEPRECATED);
return $this->getProgress();
}
/**
* Gets the current step position.
*
* @return int The progress bar step
*/
public function getProgress()
{
return $this->step;
}
/**
* Gets the progress bar step width.
*
* @internal This method is public for PHP 5.3 compatibility, it should not be used.
*
* @return int The progress bar step width
*/
public function getStepWidth()
{
return $this->stepWidth;
}
/**
* Gets the current progress bar percent.
*
* @return float The current progress bar percent
*/
public function getProgressPercent()
{
return $this->percent;
}
/**
* Sets the progress bar width.
*
* @param int $size The progress bar size
*/
public function setBarWidth($size)
{
$this->barWidth = (int) $size;
}
/**
* Gets the progress bar width.
*
* @return int The progress bar size
*/
public function getBarWidth()
{
return $this->barWidth;
}
/**
* Sets the bar character.
*
* @param string $char A character
*/
public function setBarCharacter($char)
{
$this->barChar = $char;
}
/**
* Gets the bar character.
*
* @return string A character
*/
public function getBarCharacter()
{
if (null === $this->barChar) {
return $this->max ? '=' : $this->emptyBarChar;
}
return $this->barChar;
}
/**
* Sets the empty bar character.
*
* @param string $char A character
*/
public function setEmptyBarCharacter($char)
{
$this->emptyBarChar = $char;
}
/**
* Gets the empty bar character.
*
* @return string A character
*/
public function getEmptyBarCharacter()
{
return $this->emptyBarChar;
}
/**
* Sets the progress bar character.
*
* @param string $char A character
*/
public function setProgressCharacter($char)
{
$this->progressChar = $char;
}
/**
* Gets the progress bar character.
*
* @return string A character
*/
public function getProgressCharacter()
{
return $this->progressChar;
}
/**
* Sets the progress bar format.
*
* @param string $format The format
*/
public function setFormat($format)
{
// 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 redraw frequency.
*
* @param int $freq The frequency in steps
*/
public function setRedrawFrequency($freq)
{
$this->redrawFreq = (int) $freq;
}
/**
* Starts the progress output.
*
* @param int|null $max Number of steps to complete the bar (0 if indeterminate), null to leave unchanged
*/
public function start($max = null)
{
$this->startTime = time();
$this->step = 0;
$this->percent = 0.0;
if (null !== $max) {
$this->setMaxSteps($max);
}
$this->display();
}
/**
* Advances the progress output X steps.
*
* @param int $step Number of steps to advance
*
* @throws LogicException
*/
public function advance($step = 1)
{
$this->setProgress($this->step + $step);
}
/**
* Sets the current progress.
*
* @deprecated since version 2.6, to be removed in 3.0. Use {@link setProgress()} instead.
*
* @param int $step The current progress
*
* @throws LogicException
*/
public function setCurrent($step)
{
@trigger_error('The '.__METHOD__.' method is deprecated since version 2.6 and will be removed in 3.0. Use the setProgress() method instead.', E_USER_DEPRECATED);
$this->setProgress($step);
}
/**
* Sets whether to overwrite the progressbar, false for new line.
*
* @param bool $overwrite
*/
public function setOverwrite($overwrite)
{
$this->overwrite = (bool) $overwrite;
}
/**
* Sets the current progress.
*
* @param int $step The current progress
*
* @throws LogicException
*/
public function setProgress($step)
{
$step = (int) $step;
if ($step < $this->step) {
throw new LogicException('You can't regress the progress bar.');
}
if ($this->max && $step > $this->max) {
$this->max = $step;
}
$prevPeriod = (int) ($this->step / $this->redrawFreq);
$currPeriod = (int) ($step / $this->redrawFreq);
$this->step = $step;
$this->percent = $this->max ? (float) $this->step / $this->max : 0;
if ($prevPeriod !== $currPeriod || $this->max === $step) {
$this->display();
}
}
/**
* Finishes the progress output.
*/
public function finish()
{
if (!$this->max) {
$this->max = $this->step;
}
if ($this->step === $this->max && !$this->overwrite) {
// prevent double 100% output
return;
}
$this->setProgress($this->max);
}
/**
* Outputs the current progress string.
*/
public function display()
{
if (OutputInterface::VERBOSITY_QUIET === $this->output->getVerbosity()) {
return;
}
// these 3 variables can be removed in favor of using $this in the closure when support for PHP 5.3 will be dropped.
$self = $this;
$output = $this->output;
$messages = $this->messages;
$this->overwrite(preg_replace_callback("{%([a-z-_]+)(?::([^%]+))?%}i", function ($matches) use ($self, $output, $messages) {
if ($formatter = $self::getPlaceholderFormatterDefinition($matches[1])) {
$text = call_user_func($formatter, $self, $output);
} elseif (isset($messages[$matches[1]])) {
$text = $messages[$matches[1]];
} else {
return $matches[0];
}
if (isset($matches[2])) {
$text = sprintf('%'.$matches[2], $text);
}
return $text;
}, $this->format));
}
/**
* Removes the progress bar from the current line.
*
* This is useful if you wish to write some output
* while a progress bar is running.
* Call display() to show the progress bar again.
*/
public function clear()
{
if (!$this->overwrite) {
return;
}
$this->overwrite(str_repeat("n", $this->formatLineCount));
}
/**
* Sets the progress bar maximal steps.
*
* @param int The progress bar max steps
*/
private function setMaxSteps($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)
{
$lines = explode("n", $message);
// append whitespace to match the line's length
if (null !== $this->lastMessagesLength) {
foreach ($lines as $i => $line) {
if ($this->lastMessagesLength > Helper::strlenWithoutDecoration($this->output->getFormatter(), $line)) {
$lines[$i] = str_pad($line, $this->lastMessagesLength, "x20", STR_PAD_RIGHT);
}
}
}
if ($this->overwrite) {
// move back to the beginning of the progress bar before redrawing it
$this->output->write("x0D");
} elseif ($this->step > 0) {
// move to new line
$this->output->writeln('');
}
if ($this->formatLineCount) {
$this->output->write(sprintf(" 33[%dA", $this->formatLineCount));
}
$this->output->write(implode("n", $lines));
$this->lastMessagesLength = 0;
foreach ($lines as $line) {
$len = Helper::strlenWithoutDecoration($this->output->getFormatter(), $line);
if ($len > $this->lastMessagesLength) {
$this->lastMessagesLength = $len;
}
}
}
private function determineBestFormat()
{
switch ($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%',
);
}
}