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<?php |
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namespace JK\Sam\File; |
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use Exception; |
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use SplFileInfo; |
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use Symfony\Component\Filesystem\Filesystem; |
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class Normalizer |
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{ |
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/** |
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* Current application root absolute path, used to resolve relative path. |
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* |
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* @var string |
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*/ |
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protected $applicationPath; |
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/** |
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* Locator constructor. |
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* |
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* @param string $applicationPath |
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*/ |
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public function __construct($applicationPath = '') |
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{ |
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$this->applicationPath = realpath($applicationPath); |
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} |
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/** |
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* Normalize a source (string or SplInfo) into an instance of SplInfo. |
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* |
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* @param mixed $source |
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* @return SplFileInfo |
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* @throws Exception |
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*/ |
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public function normalize($source) |
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{ |
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$fileSystem = new Filesystem(); |
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// if the source is a file info, it must exists and be readable |
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if ($source instanceof SplFileInfo) { |
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if (!$fileSystem->exists($source->getRealPath())) { |
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throw new Exception('Unable to find '.$source.' during normalization process'); |
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} |
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// the source is already normalized |
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return $source; |
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} |
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// if the source is not an instance of SplInfo, it should be a string |
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if (!is_string($source)) { |
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throw new Exception( |
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'The source should be a string if it is not an instance of SplInfo (instead of '.gettype($source).')' |
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); |
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} |
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$path = $source; |
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// if the file does not exists, try to add the application path before |
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if (!$fileSystem->exists($source)) { |
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if (!$fileSystem->exists($this->applicationPath.'/'.$source)) { |
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throw new Exception( |
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'File '.$source.' not found, searched in ' |
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.implode(', ', [$source, $this->applicationPath.'/'.$source]) |
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); |
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} |
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$path = $this->applicationPath.'/'.$source; |
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} |
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// normalize source using SplInfo |
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$source = new SplFileInfo($path); |
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return $source; |
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} |
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} |
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johnkrovitch /
Sam
