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<?php |
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namespace TheCodingMachine\CMS\StaticRegistry\Loaders; |
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7
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class YamlUtils |
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{ |
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public const OVERRIDE = 'override'; |
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public const MERGE_ARRAY = 'mergeArray'; |
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/** |
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* @param mixed[] $baseYaml |
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* @param mixed[] $yaml |
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* @param string[] $instructions |
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* @return mixed[] |
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*/ |
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public function mergeArrays(array $baseYaml, array $yaml, array $instructions): array |
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{ |
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foreach ($instructions as $key => $value) { |
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switch ($value) { |
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case self::OVERRIDE: |
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if (!isset($yaml[$key]) && isset($baseYaml[$key])) { |
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$yaml[$key] = $baseYaml[$key]; |
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} |
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break; |
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case self::MERGE_ARRAY: |
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if (isset($baseYaml[$key])) { |
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$yaml[$key] = $this->recursiveMerge($baseYaml[$key], $yaml[$key]); |
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} |
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break; |
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default: |
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throw new \InvalidArgumentException('Unexpected instruction "'.$value.'" passed. Expecting either "override" or "mergeArray".'); |
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} |
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} |
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return $yaml; |
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} |
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private function recursiveMerge(array $base, array $target): array |
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{ |
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if (!$this->isAssoc($base) && !$this->isAssoc($target)) { |
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foreach ($target as $value) { |
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$base[] = $value; |
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} |
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return $base; |
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} |
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foreach ($base as $key => $value) { |
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if (!isset($target[$key])) { |
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$target[$key] = $value; |
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continue; |
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} |
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if (is_array($target[$key]) && is_array($value)) { |
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$target[$key] = $this->recursiveMerge($value, $target[$key]); |
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} |
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// Otherwise, target wins, nothing to do |
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} |
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return $target; |
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} |
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/** |
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* @param mixed[] $arr |
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* @return bool |
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*/ |
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private function isAssoc(array $arr): bool |
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{ |
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if (array() === $arr) return false; |
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return array_keys($arr) !== range(0, count($arr) - 1); |
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} |
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} |
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thecodingmachine /
cms-static-registry
