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<?php |
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namespace Robo\Config; |
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use Dflydev\DotAccessData\Data; |
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class Config |
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{ |
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const PROGRESS_BAR_AUTO_DISPLAY_INTERVAL = 'progress-delay'; |
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const DEFAULT_PROGRESS_DELAY = 2; |
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const SIMULATE = 'simulate'; |
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const INTERACTIVE = 'interactive'; |
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const DECORATED = 'decorated'; |
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/** |
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* @var Data |
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*/ |
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protected $config; |
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/** |
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* @var array |
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*/ |
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protected $defaults; |
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/** |
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* Create a new configuration object, and initialize it with |
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* the provided nested array containing configuration data. |
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*/ |
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public function __construct(array $data = null) |
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{ |
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$this->config = new Data($data); |
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$this->defaults = $this->getGlobalOptionDefaultValues(); |
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} |
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/** |
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* Determine if a non-default config value exists. |
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*/ |
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public function has($key) |
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{ |
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return ($this->config->has($key)); |
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} |
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/** |
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* Fetch a configuration value |
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* |
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* @param string $key Which config item to look up |
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* @param string|null $defaultOverride Override usual default value with a different default. Deprecated; provide defaults to the config processor instead. |
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* |
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* @return mixed |
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*/ |
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public function get($key, $defaultOverride = null) |
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{ |
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if ($this->has($key)) { |
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return $this->config->get($key); |
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} |
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return $this->getDefault($key, $defaultOverride); |
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} |
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/** |
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* Fetch an option value from a given key, or, if that specific key does |
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* not contain a value, then consult various fallback options until a |
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* value is found. |
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* |
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* Given the following inputs: |
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* - $prefix = "command." |
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* - $group = "foo.bar.baz" |
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* - $postfix = ".options." |
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* This method will then consider, in order: |
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* - command.foo.bar.baz.options |
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* - command.foo.bar.options |
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* - command.foo.options |
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* If any of these contain an option for "$key", then return its value. |
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*/ |
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public function getWithFallback($key, $group, $prefix = '', $postfix = '.') |
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{ |
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$configKey = "{$prefix}{$group}${postfix}{$key}"; |
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if ($this->has($configKey)) { |
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return $this->get($configKey); |
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} |
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if ($this->hasDefault($configKey)) { |
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return $this->getDefault($configKey); |
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} |
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$moreGeneralGroupname = preg_replace('#\.[^.]*$#', '', $group); |
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if ($moreGeneralGroupname != $group) { |
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return $this->getWithFallback($key, $moreGeneralGroupname, $prefix, $postfix); |
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} |
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return null; |
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} |
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/** |
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* Works like 'getWithFallback', but merges results from all applicable |
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* groups. Settings from most specific group take precedence. |
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*/ |
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public function getWithMerge($key, $group, $prefix = '', $postfix = '.') |
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{ |
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$configKey = "{$prefix}{$group}${postfix}{$key}"; |
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$result = []; |
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if ($this->has($configKey)) { |
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$result = $this->get($configKey); |
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} |
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elseif ($this->hasDefault($configKey)) { |
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$result = $this->getDefault($configKey); |
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} |
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if (!is_array($result)) { |
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throw new \UnexpectedValueException($configKey . ' must be a list of settings to apply.'); |
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} |
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$moreGeneralGroupname = preg_replace('#\.[^.]*$#', '', $group); |
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if ($moreGeneralGroupname != $group) { |
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$result += $this->getWithMerge($key, $moreGeneralGroupname, $prefix, $postfix); |
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} |
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return $result; |
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} |
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/** |
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* Set a config value |
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* |
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* @param string $key |
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* @param mixed $value |
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* |
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* @return $this |
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*/ |
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public function set($key, $value) |
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{ |
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$this->config->set($key, $value); |
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return $this; |
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} |
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/** |
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* Import configuration from the provided nexted array, replacing whatever |
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* was here previously. No processing is done on the provided data. |
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* |
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* @param array $data |
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* @return Config |
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*/ |
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public function import($data) |
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{ |
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$this->config = new Data($data); |
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if (!empty($data)) { |
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$this->config->import($data, true); |
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} |
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return $this; |
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} |
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/** |
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* Export all configuration as a nested array. |
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*/ |
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public function export() |
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{ |
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return $this->config->export(); |
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} |
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/** |
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* Given an object that contains configuration methods, inject any |
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* configuration found in the configuration file. |
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* |
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* The proper use for this method is to call setter methods of the |
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* provided object. Using configuration to call methods that do work |
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* is an abuse of this mechanism. |
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* |
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* TODO: We could use reflection to test to see if the return type |
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* of the provided object is a reference to the object itself. All |
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* setter methods should do this. This test is insufficient to guarentee |
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* that the method is valid, but it would catch almost every misuse. |
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*/ |
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public function applyConfiguration($object, $configurationKey, $group = '', $prefix = '', $postfix = '') |
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{ |
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if (!empty($group) && empty($postfix)) { |
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$postfix = '.'; |
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} |
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$settings = $this->getWithMerge($configurationKey, $group, $prefix, $postfix); |
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foreach ($settings as $setterMethod => $args) { |
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// TODO: Should it be possible to make $args a nested array |
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// to make this code call the setter method multiple times? |
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$fn = [$object, $setterMethod]; |
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if (is_callable($fn)) { |
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call_user_func_array($fn, (array)$args); |
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} |
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} |
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} |
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/** |
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* Return an associative array containing all of the global configuration |
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* options and their default values. |
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* |
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* @return array |
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*/ |
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public function getGlobalOptionDefaultValues() |
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{ |
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$globalOptions = |
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[ |
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self::PROGRESS_BAR_AUTO_DISPLAY_INTERVAL => self::DEFAULT_PROGRESS_DELAY, |
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self::SIMULATE => false, |
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]; |
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return $globalOptions; |
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} |
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/** |
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* Return the default value for a given configuration item. |
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* |
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* @param string $key |
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* @param mixed $defaultOverride |
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* |
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* @return mixed |
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*/ |
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public function hasDefault($key) |
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{ |
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return isset($this->defaults[$key]); |
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} |
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/** |
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* Return the default value for a given configuration item. |
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* |
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* @param string $key |
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* @param mixed $defaultOverride |
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* |
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* @return mixed |
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*/ |
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public function getDefault($key, $defaultOverride = null) |
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{ |
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return $this->hasDefault($key) ? $this->defaults[$key] : $defaultOverride; |
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} |
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/** |
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* Set the default value for a configuration setting. This allows us to |
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* set defaults either before or after more specific configuration values |
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* are loaded. Keeping defaults separate from current settings also |
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* allows us to determine when a setting has been overridden. |
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* |
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* @param string $key |
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* @param string $value |
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*/ |
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public function setDefault($key, $value) |
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{ |
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$this->defaults[$key] = $value; |
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return $this; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isSimulated() |
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{ |
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return $this->get(self::SIMULATE); |
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} |
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/** |
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* @param bool $simulated |
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* |
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* @return $this |
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*/ |
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public function setSimulated($simulated = true) |
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{ |
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return $this->set(self::SIMULATE, $simulated); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isInteractive() |
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{ |
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return $this->get(self::INTERACTIVE); |
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} |
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/** |
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* @param bool $simulated |
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* |
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* @return $this |
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*/ |
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public function setInteractive($interactive = true) |
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{ |
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return $this->set(self::INTERACTIVE, $interactive); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isDecorated() |
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{ |
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return $this->get(self::DECORATED); |
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} |
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/** |
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* @param bool $decorated |
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* |
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* @return $this |
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*/ |
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public function setDecorated($decorated = true) |
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{ |
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return $this->set(self::DECORATED, $decorated); |
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} |
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/** |
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* @param int $interval |
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* |
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* @return $this |
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*/ |
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public function setProgressBarAutoDisplayInterval($interval) |
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{ |
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return $this->set(self::PROGRESS_BAR_AUTO_DISPLAY_INTERVAL, $interval); |
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} |
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} |
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This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.
Consider the following example. The parameter
$italyis not defined by the methodfinale(...).The most likely cause is that the parameter was removed, but the annotation was not.