Created
July 7, 2015 02:14
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Support local filesystems with a large number of directories or files (using Flysystem)
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| <?php | |
| namespace Acme\Adapter; | |
| use League\Flysystem\Adapter\Local; | |
| /** | |
| * A local adapter that works around filesystems' limit of subdirectories in a | |
| * directory. | |
| * | |
| * For files or directories in the root of the filesystem, we SHA1-hash their | |
| * name and use the first 4 chars of the hash as four levels of subdirs. The file | |
| * or directory is then placed inside the last level. | |
| * | |
| * Thus, a directory with name 'foo' will be interpreted as "0/b/e/e/foo", where | |
| * "0bee" are the first four characters of sha1('foo') | |
| */ | |
| class LocalSpread extends Local | |
| { | |
| public function applyPathPrefix($path) | |
| { | |
| // Only apply the prefix if it's not already present | |
| if (empty($path) || preg_match('/^([a-fA-F0-9]\/){4}/', $path)) { | |
| return parent::applyPathPrefix($path); | |
| } | |
| // We're only interested in prefixing the first level, imediately under | |
| // the filesystem root | |
| $pos = strpos($path, DIRECTORY_SEPARATOR); | |
| if (false === $pos) { | |
| $prefix = $this->getPrefix($path); | |
| } else { | |
| $prefix = $this->getPrefix(substr($path, 0, $pos)); | |
| } | |
| return parent::applyPathPrefix($prefix.DIRECTORY_SEPARATOR.$path); | |
| } | |
| private function getPrefix($path) | |
| { | |
| return implode(DIRECTORY_SEPARATOR, str_split(substr(hash('sha1', $path), 0, 4))); | |
| } | |
| } |
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| <?php | |
| namespace Acme\Tests\Adapter; | |
| use Memeoirs\StorageBundle\Adapter\LocalSpread; | |
| class LocalSpreadTest extends \PHPUnit_Framework_TestCase | |
| { | |
| const ROOT = '/tmp'; | |
| public function setUp() | |
| { | |
| $this->adapter = new LocalSpread(self::ROOT); | |
| } | |
| public function testApplyPathPrefix() | |
| { | |
| $this->doTestApplyPathPrefix('', ''); | |
| $this->doTestApplyPathPrefix('foo', '0/b/e/e/foo'); | |
| $this->doTestApplyPathPrefix('foo/bar', '0/b/e/e/foo/bar'); | |
| $this->doTestApplyPathPrefix('0/b/e/e/foo/bar', '0/b/e/e/foo/bar'); | |
| } | |
| private function doTestApplyPathPrefix($path, $realPath) | |
| { | |
| $this->assertEquals( | |
| $this->adapter->applyPathPrefix($path), | |
| self::ROOT.DIRECTORY_SEPARATOR.$realPath | |
| ); | |
| } | |
| } |
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