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<?php |
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namespace AppBundle\ShowUnusedPublicAssets; |
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use Helper\FileSystem; |
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use Helper\NullStyle; |
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use Symfony\Component\Console\Style\OutputStyle; |
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use Symfony\Component\Finder\Finder; |
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/** |
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* Get all asset files in the public web directory and it's subdirecories that were not accessed according to webserver |
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* logs. |
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*/ |
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final class Task |
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{ |
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/** |
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* @param string $pathToPublic |
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* @param string $pathToLogfile |
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* @param string $regExpToFindFile |
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* @param string|null $pathToOutput |
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* @param string|null $pathToBlacklist |
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* @param OutputStyle|null $ioStyle |
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*/ |
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public function getUnusedPublicAssets($pathToPublic, $pathToLogfile, $regExpToFindFile, $pathToOutput, $pathToBlacklist, OutputStyle $ioStyle = null) |
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{ |
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$ioStyle = $ioStyle ?: new NullStyle(); |
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$ioStyle->text('Started.'); |
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$accessedUrls = $this->getAccessedUrls($pathToPublic, $pathToLogfile, $regExpToFindFile); |
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$ioStyle->text('Found ' . count($accessedUrls) . ' distinct accessed URLs.'); |
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$blacklistingRegExps = FileSystem::getBlacklistingRegExps($pathToBlacklist); |
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$foundFilesInfos = iterator_to_array((new Finder())->in($pathToPublic)->files()->getIterator()); |
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$relevantPublicAssets = FileSystem::filterFilesIn($foundFilesInfos, $blacklistingRegExps); |
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$message = 'Found ' . count($relevantPublicAssets) . ' public assets'; |
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$numberOfBlacklistingRegExps = count($blacklistingRegExps); |
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if ($numberOfBlacklistingRegExps > 0) { |
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$message .= ' not matched by the ' . $numberOfBlacklistingRegExps . ' blacklisting regular expressions'; |
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} |
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$ioStyle->text($message . ' in ' . $pathToPublic . '.'); |
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$unusedAssets = array_diff($relevantPublicAssets, $accessedUrls); |
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sort($unusedAssets); |
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$pathToOutput = FileSystem::getPathToOutput($pathToOutput, $pathToPublic, 'potentially-unused-public-assets.txt'); |
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FileSystem::writeArrayToFile($unusedAssets, $pathToOutput); |
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$ioStyle->success([ |
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'Finished writing list of ' . count($unusedAssets) . ' potentially unused public assets. Please inspect the ' |
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. 'output file ' . $pathToOutput, |
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'For files you want to keep (even if they are not used according to the webserver access logs), you ' |
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. 'can maintain a blacklist. With it, you can exclude these files from the output of further runs of ' |
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. 'this command. See --help or the readme for details.', |
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'Once you are sure you can restore the rest of the files (ideally from your version control system), try ' |
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. 'deleting them, e.g. with "xargs rm < ' . $pathToOutput . '", rerun your tests and check your logs ' |
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. 'for 404s to see if that broke anything.', |
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]); |
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} |
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/** |
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* @param string $pathToPublic |
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* @param string $pathToLogfile |
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* @param string $regExpToFindFile |
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* @return string[] |
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*/ |
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private function getAccessedUrls($pathToPublic, $pathToLogfile, $regExpToFindFile) |
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{ |
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$logEntries = FileSystem::readFileIntoArray($pathToLogfile); |
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$usedAssets = []; |
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$regExpMatches = []; |
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foreach ($logEntries as $logEntry) { |
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if (preg_match($regExpToFindFile, $logEntry, $regExpMatches) === 1) { |
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$usedAssets[] = realpath($pathToPublic . $regExpMatches[1]); |
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} |
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} |
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$usedAssets = array_unique($usedAssets); |
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sort($usedAssets); |
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return $usedAssets; |
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} |
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} |
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webfactory /
zauberlehrling
