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<?php |
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namespace Robo\Config; |
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use Grasmash\YamlExpander\Expander; |
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/** |
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* The config processor combines multiple configuration |
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* files together, and processes them as necessary. |
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*/ |
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class ConfigProcessor |
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{ |
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protected $processedConfig = []; |
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protected $unprocessedConfig = []; |
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/** |
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* Extend the configuration to be processed with the |
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* configuration provided by the specified loader. |
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* |
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* @param ConfigLoaderInterface $loader |
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*/ |
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public function extend(ConfigLoaderInterface $loader) |
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{ |
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return $this->add($loader->export(), $loader->getSourceName()); |
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} |
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/** |
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* Extend the configuration to be processed with |
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* the provided nested array. |
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* |
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* @param array $data |
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* @param string $source |
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*/ |
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public function add($data, $source = '') |
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{ |
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if (empty($source)) { |
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$this->unprocessedConfig[] = $data; |
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return $this; |
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} |
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$this->unprocessedConfig[$source] = $data; |
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return $this; |
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} |
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/** |
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* Process all of the configuration that has been collected, |
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* and return a nested array. |
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* |
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* @return array |
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*/ |
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public function export() |
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{ |
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if (!empty($this->unprocessedConfig)) { |
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$this->processedConfig = $this->process( |
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$this->processedConfig, |
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$this->fetchUnprocessed() |
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); |
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} |
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return $this->processedConfig; |
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} |
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/** |
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* Get the configuration to be processed, and clear out the |
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* 'unprocessed' list. |
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* |
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* @return array |
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*/ |
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protected function fetchUnprocessed() |
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{ |
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$toBeProcessed = $this->unprocessedConfig; |
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$this->unprocessedConfig = []; |
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return $toBeProcessed; |
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} |
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/** |
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* Use a map-reduce to evaluate the items to be processed, |
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* and merge them into the processed array. |
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* |
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* @param array $processed |
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* @param array $toBeProcessed |
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*/ |
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protected function process($processed, $toBeProcessed) |
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{ |
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$toBeReduced = array_map([$this, 'preprocess'], $toBeProcessed); |
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return array_reduce($toBeReduced, [$this, 'reduceOne'], $processed); |
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} |
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/** |
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* Process a single configuration file from the 'to be processed' |
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* list. By default this is a no-op. Override this method to |
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* provide any desired configuration preprocessing, e.g. dot-notation |
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* expansion of the configuration keys, etc. |
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* |
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* @param array $config |
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*/ |
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protected function preprocess($config) |
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{ |
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return $config; |
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} |
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/** |
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* Evaluate one item in the 'to be evaluated' list, and then |
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* merge it into the processed configuration (the 'carry'). |
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* |
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* @param array $processed |
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* @param array $config |
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*/ |
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protected function reduceOne($processed, $config) |
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{ |
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$evaluated = $this->evaluate($processed, $config); |
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return static::arrayMergeRecursiveDistinct($processed, $evaluated); |
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} |
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/** |
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* Evaluate one configuration item. |
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* |
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* @param array $processed |
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* @param array $config |
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*/ |
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protected function evaluate($processed, $config) |
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{ |
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return Expander::expandArrayProperties( |
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$config, |
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$processed |
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); |
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} |
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/** |
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* Merges arrays recursively while preserving. |
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* |
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* @param array $array1 |
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* @param array $array2 |
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* |
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* @return array |
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* |
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* @see http://php.net/manual/en/function.array-merge-recursive.php#92195 |
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* @see https://github.com/grasmash/bolt/blob/robo-rebase/src/Robo/Common/ArrayManipulator.php#L22 |
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*/ |
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public static function arrayMergeRecursiveDistinct( |
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array &$array1, |
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array &$array2 |
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) { |
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$merged = $array1; |
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foreach ($array2 as $key => &$value) { |
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if (is_array($value) && isset($merged[$key]) && is_array($merged[$key])) { |
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$merged[$key] = self::arrayMergeRecursiveDistinct($merged[$key], $value); |
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} else { |
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$merged[$key] = $value; |
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} |
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} |
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return $merged; |
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} |
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} |
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consolidation /
robo
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..