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<?php |
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/* |
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* Go! AOP framework |
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* |
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* @copyright Copyright 2015, Lisachenko Alexander <[email protected]> |
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* |
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* This source file is subject to the license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Go\Instrument\FileSystem; |
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use CallbackFilterIterator; |
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use InvalidArgumentException; |
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use LogicException; |
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use RecursiveIteratorIterator; |
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use SplFileInfo; |
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use Symfony\Component\Finder\Finder; |
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use UnexpectedValueException; |
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/** |
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* Enumerates files in the concrete directory, applying filtration logic |
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*/ |
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class Enumerator |
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{ |
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/** |
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* Path to the root directory, where enumeration should start |
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* |
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* @var string |
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*/ |
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private $rootDirectory; |
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/** |
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* List of additional include paths, should be below rootDirectory |
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* |
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* @var array |
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*/ |
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private $includePaths; |
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/** |
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* List of additional exclude paths, should be below rootDirectory |
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* |
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* @var array |
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*/ |
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private $excludePaths; |
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/** |
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* Initializes an enumerator |
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* |
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* @param string $rootDirectory Path to the root directory |
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* @param array $includePaths List of additional include paths |
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* @param array $excludePaths List of additional exclude paths |
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*/ |
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public function __construct($rootDirectory, array $includePaths = [], array $excludePaths = []) |
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{ |
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$this->rootDirectory = $rootDirectory; |
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$this->includePaths = $includePaths; |
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$this->excludePaths = $excludePaths; |
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} |
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/** |
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* Returns an enumerator for files |
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* |
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* @return CallbackFilterIterator|RecursiveIteratorIterator|\IteratorIterator|SplFileInfo[] |
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* @throws UnexpectedValueException |
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* @throws InvalidArgumentException |
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* @throws LogicException |
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*/ |
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public function enumerate() |
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{ |
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$finder = new Finder(); |
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$finder->files() |
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->name('*.php') |
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->in($this->getInPaths()); |
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foreach ($this->getExcludePaths() as $path) { |
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$finder->notPath($path); |
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} |
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$iterator = $finder->getIterator(); |
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if (strpos(PHP_OS, 'WIN') === 0) { |
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$iterator = new NormalizeIterator($iterator); |
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} |
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return $iterator; |
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} |
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/** |
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* @return array |
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* @throws UnexpectedValueException |
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*/ |
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private function getInPaths() |
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{ |
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$inPaths = []; |
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foreach ($this->includePaths as $path) { |
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if (strpos($path, $this->rootDirectory, 0) === false) { |
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throw new UnexpectedValueException(sprintf('Path %s is not in %s', $path, $this->rootDirectory)); |
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} |
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$path = str_replace('*', '', $path); |
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$inPaths[] = $path; |
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} |
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if (empty($inPaths)) { |
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$inPaths[] = $this->rootDirectory; |
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} |
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return $inPaths; |
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} |
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/** |
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* @return array |
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*/ |
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private function getExcludePaths() |
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{ |
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$excludePaths = []; |
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foreach ($this->excludePaths as $path) { |
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$path = str_replace('*', '.*', $path); |
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$excludePaths[] = '#' . str_replace($this->rootDirectory . '/', '', $path) . '#'; |
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} |
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return $excludePaths; |
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} |
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/** |
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* Returns a filter callback for enumerating files |
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* |
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* @return \Closure |
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*/ |
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public function getFilter() |
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{ |
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$rootDirectory = $this->rootDirectory; |
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$includePaths = $this->includePaths; |
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$excludePaths = $this->excludePaths; |
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return function (SplFileInfo $file) use ($rootDirectory, $includePaths, $excludePaths) { |
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if ($file->getExtension() !== 'php') { |
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return false; |
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} |
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$fullPath = $this->getFileFullPath($file); |
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// Do not touch files that not under rootDirectory |
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if (strpos($fullPath, $rootDirectory) !== 0) { |
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return false; |
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} |
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if (!empty($includePaths)) { |
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$found = false; |
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foreach ($includePaths as $includePattern) { |
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if (fnmatch("{$includePattern}*", $fullPath, FNM_NOESCAPE)) { |
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$found = true; |
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break; |
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} |
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} |
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if (!$found) { |
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return false; |
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} |
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} |
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foreach ($excludePaths as $excludePattern) { |
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if (fnmatch("{$excludePattern}*", $fullPath, FNM_NOESCAPE)) { |
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return false; |
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} |
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} |
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return true; |
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}; |
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} |
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/** |
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* Return the real path of the given file |
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* |
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* This is used for testing purpose with virtual file system. |
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* In a vfs the 'realPath' methode will always return false. |
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* So we have a chance to mock this single function to return different path. |
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* |
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* @param SplFileInfo $file |
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* |
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* @return string |
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*/ |
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protected function getFileFullPath(SplFileInfo $file) |
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{ |
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return $file->getRealPath(); |
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} |
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} |
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goaop /
framework
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: