--- /dev/null
+<?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\Helper;
+
+use Symfony\Component\Console\Exception\InvalidArgumentException;
+use Symfony\Component\Console\Exception\LogicException;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * @author Kevin Bond <kevinbond@gmail.com>
+ */
+class ProgressIndicator
+{
+ private $output;
+ private $startTime;
+ private $format;
+ private $message;
+ private $indicatorValues;
+ private $indicatorCurrent;
+ private $indicatorChangeInterval;
+ private $indicatorUpdateTime;
+ private $started = false;
+
+ private static $formatters;
+ private static $formats;
+
+ /**
+ * @param OutputInterface $output
+ * @param string|null $format Indicator format
+ * @param int $indicatorChangeInterval Change interval in milliseconds
+ * @param array|null $indicatorValues Animated indicator characters
+ */
+ public function __construct(OutputInterface $output, $format = null, $indicatorChangeInterval = 100, $indicatorValues = null)
+ {
+ $this->output = $output;
+
+ if (null === $format) {
+ $format = $this->determineBestFormat();
+ }
+
+ if (null === $indicatorValues) {
+ $indicatorValues = array('-', '\\', '|', '/');
+ }
+
+ $indicatorValues = array_values($indicatorValues);
+
+ if (2 > count($indicatorValues)) {
+ throw new InvalidArgumentException('Must have at least 2 indicator value characters.');
+ }
+
+ $this->format = self::getFormatDefinition($format);
+ $this->indicatorChangeInterval = $indicatorChangeInterval;
+ $this->indicatorValues = $indicatorValues;
+ $this->startTime = time();
+ }
+
+ /**
+ * Sets the current indicator message.
+ *
+ * @param string|null $message
+ */
+ public function setMessage($message)
+ {
+ $this->message = $message;
+
+ $this->display();
+ }
+
+ /**
+ * Gets the current indicator message.
+ *
+ * @return string|null
+ *
+ * @internal for PHP 5.3 compatibility
+ */
+ public function getMessage()
+ {
+ return $this->message;
+ }
+
+ /**
+ * Gets the progress bar start time.
+ *
+ * @return int The progress bar start time
+ *
+ * @internal for PHP 5.3 compatibility
+ */
+ public function getStartTime()
+ {
+ return $this->startTime;
+ }
+
+ /**
+ * Gets the current animated indicator character.
+ *
+ * @return string
+ *
+ * @internal for PHP 5.3 compatibility
+ */
+ public function getCurrentValue()
+ {
+ return $this->indicatorValues[$this->indicatorCurrent % count($this->indicatorValues)];
+ }
+
+ /**
+ * Starts the indicator output.
+ *
+ * @param $message
+ */
+ public function start($message)
+ {
+ if ($this->started) {
+ throw new LogicException('Progress indicator already started.');
+ }
+
+ $this->message = $message;
+ $this->started = true;
+ $this->startTime = time();
+ $this->indicatorUpdateTime = $this->getCurrentTimeInMilliseconds() + $this->indicatorChangeInterval;
+ $this->indicatorCurrent = 0;
+
+ $this->display();
+ }
+
+ /**
+ * Advances the indicator.
+ */
+ public function advance()
+ {
+ if (!$this->started) {
+ throw new LogicException('Progress indicator has not yet been started.');
+ }
+
+ if (!$this->output->isDecorated()) {
+ return;
+ }
+
+ $currentTime = $this->getCurrentTimeInMilliseconds();
+
+ if ($currentTime < $this->indicatorUpdateTime) {
+ return;
+ }
+
+ $this->indicatorUpdateTime = $currentTime + $this->indicatorChangeInterval;
+ ++$this->indicatorCurrent;
+
+ $this->display();
+ }
+
+ /**
+ * Finish the indicator with message.
+ *
+ * @param $message
+ */
+ public function finish($message)
+ {
+ if (!$this->started) {
+ throw new LogicException('Progress indicator has not yet been started.');
+ }
+
+ $this->message = $message;
+ $this->display();
+ $this->output->writeln('');
+ $this->started = false;
+ }
+
+ /**
+ * 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;
+ }
+
+ /**
+ * 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;
+ }
+
+ private function display()
+ {
+ if (OutputInterface::VERBOSITY_QUIET === $this->output->getVerbosity()) {
+ return;
+ }
+
+ $self = $this;
+
+ $this->overwrite(preg_replace_callback("{%([a-z\-_]+)(?:\:([^%]+))?%}i", function ($matches) use ($self) {
+ if ($formatter = $self::getPlaceholderFormatterDefinition($matches[1])) {
+ return call_user_func($formatter, $self);
+ }
+
+ return $matches[0];
+ }, $this->format));
+ }
+
+ private function determineBestFormat()
+ {
+ switch ($this->output->getVerbosity()) {
+ // OutputInterface::VERBOSITY_QUIET: display is disabled anyway
+ case OutputInterface::VERBOSITY_VERBOSE:
+ return $this->output->isDecorated() ? 'verbose' : 'verbose_no_ansi';
+ case OutputInterface::VERBOSITY_VERY_VERBOSE:
+ case OutputInterface::VERBOSITY_DEBUG:
+ return $this->output->isDecorated() ? 'very_verbose' : 'very_verbose_no_ansi';
+ default:
+ return $this->output->isDecorated() ? 'normal' : 'normal_no_ansi';
+ }
+ }
+
+ /**
+ * Overwrites a previous message to the output.
+ *
+ * @param string $message The message
+ */
+ private function overwrite($message)
+ {
+ if ($this->output->isDecorated()) {
+ $this->output->write("\x0D\x1B[2K");
+ $this->output->write($message);
+ } else {
+ $this->output->writeln($message);
+ }
+ }
+
+ private function getCurrentTimeInMilliseconds()
+ {
+ return round(microtime(true) * 1000);
+ }
+
+ private static function initPlaceholderFormatters()
+ {
+ return array(
+ 'indicator' => function (ProgressIndicator $indicator) {
+ return $indicator->getCurrentValue();
+ },
+ 'message' => function (ProgressIndicator $indicator) {
+ return $indicator->getMessage();
+ },
+ 'elapsed' => function (ProgressIndicator $indicator) {
+ return Helper::formatTime(time() - $indicator->getStartTime());
+ },
+ 'memory' => function () {
+ return Helper::formatMemory(memory_get_usage(true));
+ },
+ );
+ }
+
+ private static function initFormats()
+ {
+ return array(
+ 'normal' => ' %indicator% %message%',
+ 'normal_no_ansi' => ' %message%',
+
+ 'verbose' => ' %indicator% %message% (%elapsed:6s%)',
+ 'verbose_no_ansi' => ' %message% (%elapsed:6s%)',
+
+ 'very_verbose' => ' %indicator% %message% (%elapsed:6s%, %memory:6s%)',
+ 'very_verbose_no_ansi' => ' %message% (%elapsed:6s%, %memory:6s%)',
+ );
+ }
+}
projects / yaffs-website / blobdiff