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76 lines
1.9 KiB
76 lines
1.9 KiB
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Translation\Extractor;
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use Symfony\Component\Translation\Exception\InvalidArgumentException;
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/**
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* Base class used by classes that extract translation messages from files.
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*
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* @author Marcos D. Sánchez <marcosdsanchez@gmail.com>
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*/
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abstract class AbstractFileExtractor
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{
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/**
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* @param string|iterable $resource Files, a file or a directory
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*
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* @return iterable
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*/
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protected function extractFiles($resource)
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{
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if (is_iterable($resource)) {
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$files = [];
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foreach ($resource as $file) {
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if ($this->canBeExtracted($file)) {
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$files[] = $this->toSplFileInfo($file);
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}
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}
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} elseif (is_file($resource)) {
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$files = $this->canBeExtracted($resource) ? [$this->toSplFileInfo($resource)] : [];
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} else {
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$files = $this->extractFromDirectory($resource);
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}
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return $files;
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}
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private function toSplFileInfo(string $file): \SplFileInfo
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{
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return new \SplFileInfo($file);
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}
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/**
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* @return bool
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*
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* @throws InvalidArgumentException
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*/
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protected function isFile(string $file)
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{
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if (!is_file($file)) {
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throw new InvalidArgumentException(sprintf('The "%s" file does not exist.', $file));
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}
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return true;
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}
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/**
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* @return bool
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*/
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abstract protected function canBeExtracted(string $file);
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/**
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* @param string|array $resource Files, a file or a directory
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*
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* @return iterable files to be extracted
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*/
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abstract protected function extractFromDirectory($resource);
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}
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