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<?php |
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namespace Graze\Sprout\Parser; |
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use Graze\Sprout\Config; |
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use SplFileInfo; |
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class SchemaParser |
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{ |
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/** @var Config */ |
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private $config; |
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/** @var null|string */ |
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private $group; |
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/** |
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* SchemaParser constructor. |
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* |
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* @param Config $config |
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* @param string|null $group |
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*/ |
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public function __construct(Config $config, string $group = null) |
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{ |
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$this->config = $config; |
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$this->group = $group; |
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} |
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/** |
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* @param array $schemaTables |
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* |
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* @return ParsedSchema[] |
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*/ |
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public function extractSchemas(array $schemaTables = []) |
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{ |
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if (count($schemaTables) === 0) { |
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$schemaTables = array_map( |
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function (Config\SchemaConfigInterface $schemaConfig) { |
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return $schemaConfig->getSchema(); |
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}, |
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$this->config->get(Config::CONFIG_SCHEMAS) |
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); |
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} |
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$parsedSchemas = []; |
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foreach ($schemaTables as $schemaTable) { |
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if (preg_match('/^([a-z_]+):(.+)$/i', $schemaTable, $matches)) { |
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$schema = $matches[1]; |
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$tables = $matches[2] === '*' ? [] : explode(',', $matches[2]); |
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} else { |
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$schema = $schemaTable; |
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$tables = []; |
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} |
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$parsedSchemas[] = new ParsedSchema( |
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$this->config->getSchemaConfiguration($schema), |
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$this->config->getSchemaPath($this->config->getSchemaConfiguration($schema), $this->group), |
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$tables |
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); |
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}; |
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return array_filter(array_map([$this, 'populateTables'], $parsedSchemas)); |
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} |
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/** |
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* @param ParsedSchema $parsedSchema |
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* |
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* @return ParsedSchema|null |
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*/ |
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public function populateTables(ParsedSchema $parsedSchema) |
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{ |
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if (!is_dir($parsedSchema->getPath())) { |
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return null; |
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} |
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if (count($parsedSchema->getTables()) === 0) { |
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// find existing tables |
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$files = iterator_to_array(new \FilesystemIterator($parsedSchema->getPath())); |
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$files = array_values(array_filter( |
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$files, |
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function (SplFileInfo $file) { |
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// ignore empty file names (`.bla`) files |
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return (!in_array($file->getFilename(), ['.', '..']) |
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&& pathinfo($file, PATHINFO_FILENAME) !== ''); |
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} |
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)); |
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// sort by file size, largest first |
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usort( |
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$files, |
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function (SplFileInfo $a, SplFileInfo $b) { |
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$left = $a->getSize(); |
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$right = $b->getSize(); |
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return ($left == $right) ? 0 : (($left > $right) ? -1 : 1); |
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} |
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); |
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// remove the file extensions to get the table names |
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$parsedSchema->setTables(array_map( |
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function (SplFileInfo $file) { |
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return pathinfo($file, PATHINFO_FILENAME); |
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}, |
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$files |
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)); |
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} |
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if (count($parsedSchema->getTables()) === 0) { |
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return null; |
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} |
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return $parsedSchema; |
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} |
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} |
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