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<?php |
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declare(strict_types=1); |
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namespace AbterPhp\Framework\Module; |
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use AbterPhp\Framework\Constant\Module; |
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class Loader |
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{ |
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protected const MODULE_FILE_NAME = 'abter.php'; |
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protected const ERROR_MSG_UNRESOLVABLE_DEPENDENCIES = 'Not able to determine module order. Likely circular dependency found.'; // phpcs:ignore |
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/** @var string[] */ |
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protected $sourceRoots; |
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/** @var string */ |
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protected $moduleFileName; |
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/** |
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* Loader constructor. |
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* |
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* @param array $sourceRoots |
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* @param string $moduleFileName |
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*/ |
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public function __construct(array $sourceRoots, $moduleFileName = '') |
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{ |
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$this->sourceRoots = $sourceRoots; |
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$this->moduleFileName = $moduleFileName ?: static::MODULE_FILE_NAME; |
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} |
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/** |
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* @return array |
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*/ |
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public function loadModules(): array |
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{ |
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$rawModules = []; |
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foreach ($this->findModules() as $path) { |
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$rawModule = include $path; |
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if (empty($rawModule[Module::ENABLED])) { |
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continue; |
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} |
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$rawModules[] = $rawModule; |
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} |
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if (count($rawModules) === 0) { |
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return []; |
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} |
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return $this->sortModules($rawModules); |
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} |
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/** |
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* @return array |
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*/ |
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protected function sortModules(array $rawModules, array $sortedIds = []): array |
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{ |
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$sortedModules = []; |
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while (!empty($rawModules)) { |
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$sortedCount = count($sortedIds); |
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foreach ($rawModules as $idx => $rawModule) { |
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foreach ($rawModule[Module::DEPENDENCIES] as $dep) { |
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if (!isset($sortedIds[$dep])) { |
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continue 2; |
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} |
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} |
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$sortedIds[$rawModule[Module::IDENTIFIER]] = $rawModule[Module::IDENTIFIER]; |
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$sortedModules[] = $rawModule; |
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unset($rawModules[$idx]); |
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} |
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if ($sortedCount === count($sortedIds)) { |
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throw new \LogicException(static::ERROR_MSG_UNRESOLVABLE_DEPENDENCIES); |
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} |
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} |
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return $sortedModules; |
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} |
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/** |
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* @return array |
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*/ |
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protected function findModules(): array |
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{ |
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$paths = []; |
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foreach ($this->sourceRoots as $root) { |
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if (empty($root)) { |
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continue; |
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} |
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$paths = array_merge($paths, $this->scanDirectories(new \DirectoryIterator($root))); |
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} |
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return $paths; |
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} |
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/** |
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* @param \DirectoryIterator $directoryIterator |
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* |
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* @return array |
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*/ |
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protected function scanDirectories(\DirectoryIterator $directoryIterator): array |
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{ |
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$paths = []; |
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foreach ($directoryIterator as $fileInfo) { |
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if ($fileInfo->isDot() || !$fileInfo->isFile()) { |
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continue; |
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} |
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if ($fileInfo->getFilename() === $this->moduleFileName) { |
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return [$fileInfo->getRealPath()]; |
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} |
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} |
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foreach ($directoryIterator as $fileInfo) { |
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if ($fileInfo->isDot() || !$fileInfo->isDir()) { |
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continue; |
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} |
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$paths = array_merge($paths, $this->scanDirectories(new \DirectoryIterator($fileInfo->getRealPath()))); |
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} |
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return $paths; |
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} |
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} |
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abterphp /
framework
