FilesystemRepository::symlinkMirror() - Code Metrics - puli/repository - Measure and Improve Code Quality continuously with Scrutinizer

FilesystemRepository::symlinkMirror() C
last analyzed 2016-02-05 10:19 UTC

↳ Parent: FilesystemRepository

Complexity

Conditions	11
Paths	12

Size

Total Lines	44
Code Lines	20

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	16
CRAP Score	12.6332

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
c	2
b	0
f	0
dl	0
loc	44
ccs	16
cts	21
cp	0.7619
rs	5.2653
cc	11
eloc	20
nc	12
nop	3
crap	12.6332

How to fix Complexity

<?php

/*
 * This file is part of the puli/repository package.
 *
 * (c) Bernhard Schussek <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Puli\Repository;

use Iterator;
use Puli\Repository\Api\ChangeStream\ChangeStream;
use Puli\Repository\Api\Resource\BodyResource;
use Puli\Repository\Api\Resource\FilesystemResource;
use Puli\Repository\Api\Resource\PuliResource;
use Puli\Repository\Api\ResourceCollection;
use Puli\Repository\Api\ResourceNotFoundException;
use Puli\Repository\Api\UnsupportedOperationException;
use Puli\Repository\Api\UnsupportedResourceException;
use Puli\Repository\Resource\Collection\FilesystemResourceCollection;
use Puli\Repository\Resource\DirectoryResource;
use Puli\Repository\Resource\FileResource;
use Puli\Repository\Resource\LinkResource;
use Symfony\Component\Filesystem\Exception\IOException;
use Symfony\Component\Filesystem\Filesystem;
use Webmozart\Assert\Assert;
use Webmozart\Glob\Iterator\GlobIterator;
use Webmozart\Glob\Iterator\RecursiveDirectoryIterator;
use Webmozart\PathUtil\Path;

/**
 * A repository reading from the file system.
 *
 * Resources can be read using their absolute file system paths:
 *
 * ```php
 * use Puli\Repository\FilesystemRepository;
 *
 * $repo = new FilesystemRepository();
 * $resource = $repo->get('/home/puli/.gitconfig');
 * ```
 *
 * The returned resources implement {@link FilesystemResource}.
 *
 * Optionally, a root directory can be passed to the constructor. Then all paths
 * will be read relative to that directory:
 *
 * ```php
 * $repo = new FilesystemRepository('/home/puli');
 * $resource = $repo->get('/.gitconfig');
 * ```
 *
 * While "." and ".." segments are supported, files outside the root directory
 * cannot be read. Any leading ".." segments will simply be stripped off.
 *
 * @since  1.0
 *
 * @author Bernhard Schussek <[email protected]>
 */
class FilesystemRepository extends AbstractEditableRepository
{
    /**
     * @var bool|null
     */
    private static $symlinkSupported;

    /**
     * @var string
     */
    private $baseDir;

    /**
     * @var int
     */
    private $baseDirLength;

    /**
     * @var bool
     */
    private $symlink;

    /**
     * @var bool
     */
    private $relative;

    /**
     * @var Filesystem
     */
    private $filesystem;

    /**
     * Returns whether symlinks are supported in the local environment.
     *
     * @return bool Returns `true` if symlinks are supported.
     */
    public static function isSymlinkSupported()
    {
        if (null === self::$symlinkSupported) {
            // http://php.net/manual/en/function.symlink.php
            // Symlinks are only supported on Windows Vista, Server 2008 or
            // greater on PHP 5.3+
            if (defined('PHP_WINDOWS_VERSION_MAJOR')) {
                self::$symlinkSupported = PHP_WINDOWS_VERSION_MAJOR >= 6;
            } else {
                self::$symlinkSupported = true;
            }
        }

        return self::$symlinkSupported;
    }

    /**
     * Creates a new repository.
     *
     * @param string            $baseDir      The base directory of the repository on the file
     *                                        system.
     * @param bool              $symlink      Whether to use symbolic links for added files. If
     *                                        symbolic links are not supported on the current
     *                                        system, the repository will create hard copies
     *                                        instead.
     * @param bool              $relative     Whether to create relative symbolic links. If
     *                                        relative links are not supported on the current
     *                                        system, the repository will create absolute links
     *                                        instead.
     * @param ChangeStream|null $changeStream If provided, the repository will log
     *                                        resources changes in this change stream.
     */
    public function __construct($baseDir = '/', $symlink = true, $relative = true, ChangeStream $changeStream = null)
    {
        parent::__construct($changeStream);

        Assert::directory($baseDir);
        Assert::boolean($symlink);

        $this->baseDir = rtrim(Path::canonicalize($baseDir), '/');
        $this->baseDirLength = strlen($baseDir);
        $this->symlink = $symlink && self::isSymlinkSupported();
        $this->relative = $this->symlink && $relative;
        $this->filesystem = new Filesystem();
    }

    /**
     * {@inheritdoc}
     */
    public function get($path)
    {
        $path = $this->sanitizePath($path);
        $filesystemPath = $this->baseDir.$path;

        if (!file_exists($filesystemPath)) {
            throw ResourceNotFoundException::forPath($path);
        }

        return $this->createResource($filesystemPath, $path);
    }

    /**
     * {@inheritdoc}
     */
    public function find($query, $language = 'glob')
    {
        return $this->iteratorToCollection($this->getGlobIterator($query, $language));
    }

    /**
     * {@inheritdoc}
     */
    public function contains($query, $language = 'glob')
    {
        $iterator = $this->getGlobIterator($query, $language);
        $iterator->rewind();

        return $iterator->valid();
    }

    /**
     * {@inheritdoc}
     */
    public function hasChildren($path)
    {
        $filesystemPath = $this->getFilesystemPath($path);

        if (!is_dir($filesystemPath)) {
            return false;
        }

        $iterator = $this->getDirectoryIterator($filesystemPath);
        $iterator->rewind();

        return $iterator->valid();
    }

    /**
     * {@inheritdoc}
     */
    public function listChildren($path)
    {
        $filesystemPath = $this->getFilesystemPath($path);

        if (!is_dir($filesystemPath)) {
            return new FilesystemResourceCollection();
        }

        return $this->iteratorToCollection($this->getDirectoryIterator($filesystemPath));
    }

    /**
     * {@inheritdoc}
     */
    public function add($path, $resource)
    {
        $path = $this->sanitizePath($path);

        if ($resource instanceof ResourceCollection) {
            $this->ensureDirectoryExists($path);
            foreach ($resource as $child) {
                $this->addResource($path.'/'.$child->getName(), $child);
            }

            return;
        }

        if ($resource instanceof PuliResource) {
            $this->ensureDirectoryExists(Path::getDirectory($path));
            $this->addResource($path, $resource);

            return;
        }

        throw new UnsupportedResourceException(sprintf(
            'The passed resource must be a PuliResource or ResourceCollection. Got: %s',
            is_object($resource) ? get_class($resource) : gettype($resource)
        ));
    }

    /**
     * {@inheritdoc}
     */
    public function remove($query, $language = 'glob')
    {
        $iterator = $this->getGlobIterator($query, $language);
        $removed = 0;

        Assert::notEmpty(trim($query, '/'), 'The root directory cannot be removed.');

        // There's some problem with concurrent deletions at the moment
        foreach (iterator_to_array($iterator) as $filesystemPath) {
            $this->removeResource($filesystemPath, $removed);
        }

        return $removed;
    }

    /**
     * {@inheritdoc}
     */
    public function clear()
    {
        $iterator = $this->getDirectoryIterator($this->baseDir);
        $removed = 0;

        // Batch-delete all versions
        $this->clearVersions();

        foreach ($iterator as $filesystemPath) {
            $this->removeResource($filesystemPath, $removed);
        }

        $this->storeVersion($this->get('/'));

        return $removed;
    }

    private function ensureDirectoryExists($path)
    {
        $filesystemPath = $this->baseDir.$path;

        if (is_file($filesystemPath)) {
            throw new UnsupportedOperationException(sprintf(
                'Instances of BodyResource do not support child resources in '.
                'FilesystemRepository. Tried to add a child to %s.',
                $filesystemPath
            ));
        }

        if (!is_dir($filesystemPath)) {
            mkdir($filesystemPath, 0777, true);
        }
    }

    private function addResource($path, PuliResource $resource, $checkParentsForSymlinks = true)
    {
        $pathInBaseDir = $this->baseDir.$path;
        $hasChildren = $resource->hasChildren();
        $hasBody = $resource instanceof BodyResource;

        if ($hasChildren && $hasBody) {
            throw new UnsupportedResourceException(sprintf(
                'Instances of BodyResource do not support child resources in '.
                'FilesystemRepository. Tried to add a BodyResource with '.
                'children at %s.',
                $path
            ));
        }

        $resource = clone $resource;
        $resource->attachTo($this, $path);

        if ($this->symlink && $checkParentsForSymlinks) {
            $this->replaceParentSymlinksByCopies($path);
        }

        if ($resource instanceof FilesystemResource) {
            if ($this->symlink) {
                $this->symlinkMirror($resource->getFilesystemPath(), $pathInBaseDir);
            } elseif ($hasBody) {
                $this->filesystem->copy($resource->getFilesystemPath(), $pathInBaseDir);
            } else {
                $this->filesystem->mirror($resource->getFilesystemPath(), $pathInBaseDir);
            }

            $this->storeVersion($resource);

            return;
        }

        if ($resource instanceof LinkResource) {
            if (!$this->symlink) {
                throw new UnsupportedResourceException(sprintf(
                    'LinkResource requires support of symbolic links in FilesystemRepository. '.
                    'Tried to add a LinkResource at %s.',
                    $path
                ));
            }

            $this->filesystem->symlink($this->baseDir.$resource->getTargetPath(), $pathInBaseDir);

            $this->storeVersion($resource);

            return;
        }

        if ($hasBody) {
            file_put_contents($pathInBaseDir, $resource->getBody());
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

            $this->storeVersion($resource);

            return;
        }

        if (is_file($pathInBaseDir)) {
            $this->filesystem->remove($pathInBaseDir);
        }

        if (!file_exists($pathInBaseDir)) {
            mkdir($pathInBaseDir, 0777, true);
        }

        foreach ($resource->listChildren() as $child) {
            $this->addResource($path.'/'.$child->getName(), $child, false);
        }

        $this->storeVersion($resource);
    }

    private function removeResource($filesystemPath, &$removed)
    {
        // Skip paths that have already been removed
        if (!file_exists($filesystemPath)) {
            return;
        }

        $this->removeVersions($this->getPath($filesystemPath));

        ++$removed;

        if (is_dir($filesystemPath) && !is_link($filesystemPath)) {
            $iterator = $this->getDirectoryIterator($filesystemPath);

            foreach ($iterator as $childFilesystemPath) {
                // Remove children and child versions
                $this->removeResource($childFilesystemPath, $removed);
            }
        }

        $this->filesystem->remove($filesystemPath);
    }

    private function createResource($filesystemPath, $path)
    {
        $resource = null;

        if (is_link($filesystemPath)) {
            $baseDir = rtrim($this->baseDir, '/');
            $targetFilesystemPath = $this->readLink($filesystemPath);

            if (Path::isBasePath($baseDir, $targetFilesystemPath)) {
                $targetPath = '/'.Path::makeRelative($targetFilesystemPath, $baseDir);
                $resource = new LinkResource($targetPath);
            }
        }

        if (!$resource && is_dir($filesystemPath)) {
            $resource = new DirectoryResource($filesystemPath);
        }

        if (!$resource) {
            $resource = new FileResource($filesystemPath);
        }

        $resource->attachTo($this, $path);

        return $resource;
    }

    private function iteratorToCollection(Iterator $iterator)
    {
        $filesystemPaths = iterator_to_array($iterator);
        $resources = array();

        // RecursiveDirectoryIterator is not guaranteed to return sorted results
        sort($filesystemPaths);

        foreach ($filesystemPaths as $filesystemPath) {
            $resource = is_dir($filesystemPath)
                ? new DirectoryResource($filesystemPath, $this->getPath($filesystemPath))
                : new FileResource($filesystemPath, $this->getPath($filesystemPath));

            $resource->attachTo($this);

            $resources[] = $resource;
        }

        return new FilesystemResourceCollection($resources);
    }

    private function getFilesystemPath($path)
    {
        $path = $this->sanitizePath($path);
        $filesystemPath = $this->baseDir.$path;

        if (!file_exists($filesystemPath)) {
            throw ResourceNotFoundException::forPath($path);
        }

        return $filesystemPath;
    }

    private function getGlobIterator($query, $language)
    {
        $this->failUnlessGlob($language);

        Assert::stringNotEmpty($query, 'The glob must be a non-empty string. Got: %s');
        Assert::startsWith($query, '/', 'The glob %s is not absolute.');

        $query = Path::canonicalize($query);

        return new GlobIterator($this->baseDir.$query);
    }

    private function getDirectoryIterator($filesystemPath)
    {
        return new RecursiveDirectoryIterator(
            $filesystemPath,
            RecursiveDirectoryIterator::CURRENT_AS_PATHNAME | RecursiveDirectoryIterator::SKIP_DOTS
        );
    }

    private function symlinkMirror($origin, $target, array $dirsToKeep = array())
    {
        $targetIsDir = is_dir($target);
        $forceDir = in_array($target, $dirsToKeep, true);

        // Merge directories
        if (is_dir($origin) && ($targetIsDir || $forceDir)) {
            if (is_link($target)) {
                $this->replaceLinkByCopy($target, $dirsToKeep);
            }

            $iterator = $this->getDirectoryIterator($origin);

            foreach ($iterator as $path) {
                $this->symlinkMirror($path, $target.'/'.basename($path), $dirsToKeep);
            }

            return;
        }

        // Replace target
        if (file_exists($target)) {
            $this->filesystem->remove($target);
        }

        // Try creating a relative link
        if ($this->relative && $this->trySymlink(Path::makeRelative($origin, Path::getDirectory($target)), $target)) {
            return;
        }

        // Try creating a absolute link
        if ($this->trySymlink($origin, $target)) {
            return;
        }

        // Fall back to copy
        if (is_dir($origin)) {
            $this->filesystem->mirror($origin, $target);

            return;
        }

        $this->filesystem->copy($origin, $target);
    }

    private function replaceParentSymlinksByCopies($path)
    {
        $previousPath = null;

        // Collect all paths that MUST NOT be symlinks after doing the
        // replace operation.
        //
        // Example:
        //
        // $dirsToKeep = ['/path/to/webmozart', '/path/to/webmozart/views']

        //
        // Before:
        //   /webmozart -> target
        //
        // After:
        //   /webmozart
        //     /config -> target/config
        //     /views
        //       /index.html.twig -> target/views/index.html.twig

        $dirsToKeep = array();

        while ($previousPath !== ($path = Path::getDirectory($path))) {
            $filesystemPath = $this->baseDir.$path;
            $dirsToKeep[] = $filesystemPath;

            if (is_link($filesystemPath)) {
                $this->replaceLinkByCopy($filesystemPath, $dirsToKeep);

                return;
            }

            $previousPath = $path;
        }
    }

    private function replaceLinkByCopy($path, array $dirsToKeep = array())
    {
        $target = Path::makeAbsolute($this->readLink($path), Path::getDirectory($path));
        $this->filesystem->remove($path);
        $this->filesystem->mkdir($path);
        $this->symlinkMirror($target, $path, $dirsToKeep);
    }

    private function trySymlink($origin, $target)
    {
        try {
            $this->filesystem->symlink($origin, $target);

            if (file_exists($target)) {
                return true;
            }
        } catch (IOException $e) {
        }

        return false;
    }

    private function readLink($filesystemPath)
    {
        // On Windows, transitive links are resolved to the final target by
        // readlink(). realpath(), however, returns the target link on Windows,
        // but not on Unix.

        // /link1 -> /link2 -> /file

        // Windows: readlink(/link1) => /file
        //          realpath(/link1) => /link2

        // Unix:    readlink(/link1) => /link2
        //          realpath(/link1) => /file

        // Consistency FTW!

        return '\\' === DIRECTORY_SEPARATOR ? realpath($filesystemPath) : readlink($filesystemPath);
    }

    private function getPath($filesystemPath)
    {
        return substr($filesystemPath, $this->baseDirLength);
    }
}


FilesystemRepository::symlinkMirror() C
last analyzed 2016-02-05 10:19 UTC

Complexity

Size

Duplication

Code Coverage

Importance

How to fix Complexity

Long Method

Available Fixes

1			<?php
2
3			/*
4			* This file is part of the puli/repository package.
5			*
6			* (c) Bernhard Schussek <[email protected]>
7			*
8			* For the full copyright and license information, please view the LICENSE
9			* file that was distributed with this source code.
10			*/
11
12			namespace Puli\Repository;
13
14			use Iterator;
15			use Puli\Repository\Api\ChangeStream\ChangeStream;
16			use Puli\Repository\Api\Resource\BodyResource;
17			use Puli\Repository\Api\Resource\FilesystemResource;
18			use Puli\Repository\Api\Resource\PuliResource;
19			use Puli\Repository\Api\ResourceCollection;
20			use Puli\Repository\Api\ResourceNotFoundException;
21			use Puli\Repository\Api\UnsupportedOperationException;
22			use Puli\Repository\Api\UnsupportedResourceException;
23			use Puli\Repository\Resource\Collection\FilesystemResourceCollection;
24			use Puli\Repository\Resource\DirectoryResource;
25			use Puli\Repository\Resource\FileResource;
26			use Puli\Repository\Resource\LinkResource;
27			use Symfony\Component\Filesystem\Exception\IOException;
28			use Symfony\Component\Filesystem\Filesystem;
29			use Webmozart\Assert\Assert;
30			use Webmozart\Glob\Iterator\GlobIterator;
31			use Webmozart\Glob\Iterator\RecursiveDirectoryIterator;
32			use Webmozart\PathUtil\Path;
33
34			/**
35			* A repository reading from the file system.
36			*
37			* Resources can be read using their absolute file system paths:
38			*
39			* ```php
40			* use Puli\Repository\FilesystemRepository;
41			*
42			* $repo = new FilesystemRepository();
43			* $resource = $repo->get('/home/puli/.gitconfig');
44			* ```
45			*
46			* The returned resources implement {@link FilesystemResource}.
47			*
48			* Optionally, a root directory can be passed to the constructor. Then all paths
49			* will be read relative to that directory:
50			*
51			* ```php
52			* $repo = new FilesystemRepository('/home/puli');
53			* $resource = $repo->get('/.gitconfig');
54			* ```
55			*
56			* While "." and ".." segments are supported, files outside the root directory
57			* cannot be read. Any leading ".." segments will simply be stripped off.
58			*
59			* @since 1.0
60			*
61			* @author Bernhard Schussek <[email protected]>
62			*/
63			class FilesystemRepository extends AbstractEditableRepository
64			{
65			/**
66			* @var bool\|null
67			*/
68			private static $symlinkSupported;
69
70			/**
71			* @var string
72			*/
73			private $baseDir;
74
75			/**
76			* @var int
77			*/
78			private $baseDirLength;
79
80			/**
81			* @var bool
82			*/
83			private $symlink;
84
85			/**
86			* @var bool
87			*/
88			private $relative;
89
90			/**
91			* @var Filesystem
92			*/
93			private $filesystem;
94
95			/**
96			* Returns whether symlinks are supported in the local environment.
97			*
98			* @return bool Returns `true` if symlinks are supported.
99			*/
100	305		public static function isSymlinkSupported()
101			{
102	305		if (null === self::$symlinkSupported) {
103			// http://php.net/manual/en/function.symlink.php
104			// Symlinks are only supported on Windows Vista, Server 2008 or
105			// greater on PHP 5.3+
106	1		if (defined('PHP_WINDOWS_VERSION_MAJOR')) {
107			self::$symlinkSupported = PHP_WINDOWS_VERSION_MAJOR >= 6;
108			} else {
109	1		self::$symlinkSupported = true;
110			}
111			}
112
113	305		return self::$symlinkSupported;
114			}
115
116			/**
117			* Creates a new repository.
118			*
119			* @param string $baseDir The base directory of the repository on the file
120			* system.
121			* @param bool $symlink Whether to use symbolic links for added files. If
122			* symbolic links are not supported on the current
123			* system, the repository will create hard copies
124			* instead.
125			* @param bool $relative Whether to create relative symbolic links. If
126			* relative links are not supported on the current
127			* system, the repository will create absolute links
128			* instead.
129			* @param ChangeStream\|null $changeStream If provided, the repository will log
130			* resources changes in this change stream.
131			*/
132	394		public function __construct($baseDir = '/', $symlink = true, $relative = true, ChangeStream $changeStream = null)
133			{
134	394		parent::__construct($changeStream);
135
136	394		Assert::directory($baseDir);
137	394		Assert::boolean($symlink);
138
139	394		$this->baseDir = rtrim(Path::canonicalize($baseDir), '/');
140	394		$this->baseDirLength = strlen($baseDir);
141	394		$this->symlink = $symlink && self::isSymlinkSupported();
142	394		$this->relative = $this->symlink && $relative;
143	394		$this->filesystem = new Filesystem();
144	394		}
145
146			/**
147			* {@inheritdoc}
148			*/
149	169	View Code Duplication	public function get($path)
150			{
151	169		$path = $this->sanitizePath($path);
152	157		$filesystemPath = $this->baseDir.$path;
153
154	157		if (!file_exists($filesystemPath)) {
155	8		throw ResourceNotFoundException::forPath($path);
156			}
157
158	149		return $this->createResource($filesystemPath, $path);
159			}
160
161			/**
162			* {@inheritdoc}
163			*/
164	41		public function find($query, $language = 'glob')
165			{
166	41		return $this->iteratorToCollection($this->getGlobIterator($query, $language));
167			}
168
169			/**
170			* {@inheritdoc}
171			*/
172	63		public function contains($query, $language = 'glob')
173			{
174	63		$iterator = $this->getGlobIterator($query, $language);
175	50		$iterator->rewind();
176
177	50		return $iterator->valid();
178			}
179
180			/**
181			* {@inheritdoc}
182			*/
183	28		public function hasChildren($path)
184			{
185	28		$filesystemPath = $this->getFilesystemPath($path);
186
187	12		if (!is_dir($filesystemPath)) {
188	4		return false;
189			}
190
191	12		$iterator = $this->getDirectoryIterator($filesystemPath);
192	12		$iterator->rewind();
193
194	12		return $iterator->valid();
195			}
196
197			/**
198			* {@inheritdoc}
199			*/
200	42		public function listChildren($path)
201			{
202	42		$filesystemPath = $this->getFilesystemPath($path);
203
204	26		if (!is_dir($filesystemPath)) {
205	4		return new FilesystemResourceCollection();
206			}
207
208	22		return $this->iteratorToCollection($this->getDirectoryIterator($filesystemPath));
209			}
210
211			/**
212			* {@inheritdoc}
213			*/
214	359		public function add($path, $resource)
215			{
216	359		$path = $this->sanitizePath($path);
217
218	347	View Code Duplication	if ($resource instanceof ResourceCollection) {
219	4		$this->ensureDirectoryExists($path);
220	4		foreach ($resource as $child) {
221	4		$this->addResource($path.'/'.$child->getName(), $child);
222			}
223
224	4		return;
225			}
226
227	343		if ($resource instanceof PuliResource) {
228	339		$this->ensureDirectoryExists(Path::getDirectory($path));
229	339		$this->addResource($path, $resource);
230
231	334		return;
232			}
233
234	4		throw new UnsupportedResourceException(sprintf(
235	4		'The passed resource must be a PuliResource or ResourceCollection. Got: %s',
236	4		is_object($resource) ? get_class($resource) : gettype($resource)
237			));
238			}
239
240			/**
241			* {@inheritdoc}
242			*/
243	61		public function remove($query, $language = 'glob')
244			{
245	61		$iterator = $this->getGlobIterator($query, $language);
246	48		$removed = 0;
247
248	48		Assert::notEmpty(trim($query, '/'), 'The root directory cannot be removed.');
249
250			// There's some problem with concurrent deletions at the moment
251	40		foreach (iterator_to_array($iterator) as $filesystemPath) {
252	40		$this->removeResource($filesystemPath, $removed);
253			}
254
255	40		return $removed;
256			}
257
258			/**
259			* {@inheritdoc}
260			*/
261	14		public function clear()
262			{
263	14		$iterator = $this->getDirectoryIterator($this->baseDir);
264	14		$removed = 0;
265
266			// Batch-delete all versions
267	14		$this->clearVersions();
268
269	14		foreach ($iterator as $filesystemPath) {
270	10		$this->removeResource($filesystemPath, $removed);
271			}
272
273	14		$this->storeVersion($this->get('/'));
274
275	14		return $removed;
276			}
277
278	343		private function ensureDirectoryExists($path)
279			{
280	343		$filesystemPath = $this->baseDir.$path;
281
282	343		if (is_file($filesystemPath)) {
283	1		throw new UnsupportedOperationException(sprintf(
284			'Instances of BodyResource do not support child resources in '.
285	1		'FilesystemRepository. Tried to add a child to %s.',
286			$filesystemPath
287			));
288			}
289
290	343		if (!is_dir($filesystemPath)) {
291	112		mkdir($filesystemPath, 0777, true);
292			}
293	343		}
294
295	343		private function addResource($path, PuliResource $resource, $checkParentsForSymlinks = true)
296			{
297	343		$pathInBaseDir = $this->baseDir.$path;
298	343		$hasChildren = $resource->hasChildren();
299	343		$hasBody = $resource instanceof BodyResource;
300
301	343		if ($hasChildren && $hasBody) {
302	1		throw new UnsupportedResourceException(sprintf(
303			'Instances of BodyResource do not support child resources in '.
304			'FilesystemRepository. Tried to add a BodyResource with '.
305	1		'children at %s.',
306			$path
307			));
308			}
309
310	342		$resource = clone $resource;
311	342		$resource->attachTo($this, $path);
312
313	342		if ($this->symlink && $checkParentsForSymlinks) {
314	184		$this->replaceParentSymlinksByCopies($path);
315			}
316
317	342		if ($resource instanceof FilesystemResource) {
318	35		if ($this->symlink) {
319	32		$this->symlinkMirror($resource->getFilesystemPath(), $pathInBaseDir);
320	3		} elseif ($hasBody) {
321	2		$this->filesystem->copy($resource->getFilesystemPath(), $pathInBaseDir);
322			} else {
323	1		$this->filesystem->mirror($resource->getFilesystemPath(), $pathInBaseDir);
324			}
325
326	35		$this->storeVersion($resource);
327
328	35		return;
329			}
330
331	315		if ($resource instanceof LinkResource) {
332	8		if (!$this->symlink) {
333	4		throw new UnsupportedResourceException(sprintf(
334			'LinkResource requires support of symbolic links in FilesystemRepository. '.
335	4		'Tried to add a LinkResource at %s.',
336			$path
337			));
338			}
339
340	4		$this->filesystem->symlink($this->baseDir.$resource->getTargetPath(), $pathInBaseDir);
341
342	4		$this->storeVersion($resource);
343
344	4		return;
345			}
346
347	307		if ($hasBody) {
348	175		file_put_contents($pathInBaseDir, $resource->getBody());
			0 ignored issues – show Bug introduced 2015-12-23 15:11 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Puli\Repository\Api\Resource\PuliResource` as the method `getBody()` does only exist in the following implementations of said interface: `Puli\Repository\Resource\FileResource`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
349
350	175		$this->storeVersion($resource);
351
352	175		return;
353			}
354
355	239		if (is_file($pathInBaseDir)) {
356			$this->filesystem->remove($pathInBaseDir);
357			}
358
359	239		if (!file_exists($pathInBaseDir)) {
360	147		mkdir($pathInBaseDir, 0777, true);
361			}
362
363	239		foreach ($resource->listChildren() as $child) {
364	148		$this->addResource($path.'/'.$child->getName(), $child, false);
365			}
366
367	239		$this->storeVersion($resource);
368	239		}
369
370	50		private function removeResource($filesystemPath, &$removed)
371			{
372			// Skip paths that have already been removed
373	50		if (!file_exists($filesystemPath)) {
374			return;
375			}
376
377	50		$this->removeVersions($this->getPath($filesystemPath));
378
379	50		++$removed;
380
381	50		if (is_dir($filesystemPath) && !is_link($filesystemPath)) {
382	32		$iterator = $this->getDirectoryIterator($filesystemPath);
383
384	32		foreach ($iterator as $childFilesystemPath) {
385			// Remove children and child versions
386	32		$this->removeResource($childFilesystemPath, $removed);
387			}
388			}
389
390	50		$this->filesystem->remove($filesystemPath);
391	50		}
392
393	149		private function createResource($filesystemPath, $path)
394			{
395	149		$resource = null;
396
397	149		if (is_link($filesystemPath)) {
398	6		$baseDir = rtrim($this->baseDir, '/');
399	6		$targetFilesystemPath = $this->readLink($filesystemPath);
400
401	6		if (Path::isBasePath($baseDir, $targetFilesystemPath)) {
402	6		$targetPath = '/'.Path::makeRelative($targetFilesystemPath, $baseDir);
403	6		$resource = new LinkResource($targetPath);
404			}
405			}
406
407	149		if (!$resource && is_dir($filesystemPath)) {
408	100		$resource = new DirectoryResource($filesystemPath);
409			}
410
411	149		if (!$resource) {
412	79		$resource = new FileResource($filesystemPath);
413			}
414
415	149		$resource->attachTo($this, $path);
416
417	149		return $resource;
418			}
419
420	50		private function iteratorToCollection(Iterator $iterator)
421			{
422	50		$filesystemPaths = iterator_to_array($iterator);
423	50		$resources = array();
424
425			// RecursiveDirectoryIterator is not guaranteed to return sorted results
426	50		sort($filesystemPaths);
427
428	50		foreach ($filesystemPaths as $filesystemPath) {
429	42		$resource = is_dir($filesystemPath)
430	24		? new DirectoryResource($filesystemPath, $this->getPath($filesystemPath))
431	42		: new FileResource($filesystemPath, $this->getPath($filesystemPath));
432
433	42		$resource->attachTo($this);
434
435	42		$resources[] = $resource;
436			}
437
438	50		return new FilesystemResourceCollection($resources);
439			}
440
441	66	View Code Duplication	private function getFilesystemPath($path)
442			{
443	66		$path = $this->sanitizePath($path);
444	42		$filesystemPath = $this->baseDir.$path;
445
446	42		if (!file_exists($filesystemPath)) {
447	8		throw ResourceNotFoundException::forPath($path);
448			}
449
450	34		return $filesystemPath;
451			}
452
453	137		private function getGlobIterator($query, $language)
454			{
455	137		$this->failUnlessGlob($language);
456
457	134		Assert::stringNotEmpty($query, 'The glob must be a non-empty string. Got: %s');
458	110		Assert::startsWith($query, '/', 'The glob %s is not absolute.');
459
460	98		$query = Path::canonicalize($query);
461
462	98		return new GlobIterator($this->baseDir.$query);
463			}
464
465	84		private function getDirectoryIterator($filesystemPath)
466			{
467	84		return new RecursiveDirectoryIterator(
468			$filesystemPath,
469	84		RecursiveDirectoryIterator::CURRENT_AS_PATHNAME \| RecursiveDirectoryIterator::SKIP_DOTS
470			);
471			}
472
473	32		private function symlinkMirror($origin, $target, array $dirsToKeep = array())
474			{
475	32		$targetIsDir = is_dir($target);
476	32		$forceDir = in_array($target, $dirsToKeep, true);
477
478			// Merge directories
479	32		if (is_dir($origin) && ($targetIsDir \|\| $forceDir)) {
480	16		if (is_link($target)) {
481	4		$this->replaceLinkByCopy($target, $dirsToKeep);
482			}
483
484	16		$iterator = $this->getDirectoryIterator($origin);
485
486	16		foreach ($iterator as $path) {
487	16		$this->symlinkMirror($path, $target.'/'.basename($path), $dirsToKeep);
488			}
489
490	16		return;
491			}
492
493			// Replace target
494	32		if (file_exists($target)) {
495	10		$this->filesystem->remove($target);
496			}
497
498			// Try creating a relative link
499	32		if ($this->relative && $this->trySymlink(Path::makeRelative($origin, Path::getDirectory($target)), $target)) {
500	16		return;
501			}
502
503			// Try creating a absolute link
504	16		if ($this->trySymlink($origin, $target)) {
505	16		return;
506			}
507
508			// Fall back to copy
509			if (is_dir($origin)) {
510			$this->filesystem->mirror($origin, $target);
511
512			return;
513			}
514
515			$this->filesystem->copy($origin, $target);
516			}
517
518	184		private function replaceParentSymlinksByCopies($path)
519			{
520	184		$previousPath = null;
521
522			// Collect all paths that MUST NOT be symlinks after doing the
523			// replace operation.
524			//
525			// Example:
526			//
527			// $dirsToKeep = ['/path/to/webmozart', '/path/to/webmozart/views']
			0 ignored issues – show Unused Code Comprehensibility introduced 2016-02-05 10:15 UTC by Report Bug Copy Issue Report `55%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
528			//
529			// Before:
530			// /webmozart -> target
531			//
532			// After:
533			// /webmozart
534			// /config -> target/config
535			// /views
536			// /index.html.twig -> target/views/index.html.twig
537
538	184		$dirsToKeep = array();
539
540	184		while ($previousPath !== ($path = Path::getDirectory($path))) {
541	184		$filesystemPath = $this->baseDir.$path;
542	184		$dirsToKeep[] = $filesystemPath;
543
544	184		if (is_link($filesystemPath)) {
545	12		$this->replaceLinkByCopy($filesystemPath, $dirsToKeep);
546
547	12		return;
548			}
549
550	184		$previousPath = $path;
551			}
552	184		}
553
554	16		private function replaceLinkByCopy($path, array $dirsToKeep = array())
555			{
556	16		$target = Path::makeAbsolute($this->readLink($path), Path::getDirectory($path));
557	16		$this->filesystem->remove($path);
558	16		$this->filesystem->mkdir($path);
559	16		$this->symlinkMirror($target, $path, $dirsToKeep);
560	16		}
561
562	32		private function trySymlink($origin, $target)
563			{
564			try {
565	32		$this->filesystem->symlink($origin, $target);
566
567	32		if (file_exists($target)) {
568	32		return true;
569			}
570			} catch (IOException $e) {
571			}
572
573			return false;
574			}
575
576	22		private function readLink($filesystemPath)
577			{
578			// On Windows, transitive links are resolved to the final target by
579			// readlink(). realpath(), however, returns the target link on Windows,
580			// but not on Unix.
581
582			// /link1 -> /link2 -> /file
583
584			// Windows: readlink(/link1) => /file
585			// realpath(/link1) => /link2
586
587			// Unix: readlink(/link1) => /link2
588			// realpath(/link1) => /file
589
590			// Consistency FTW!
591
592	22		return '\\' === DIRECTORY_SEPARATOR ? realpath($filesystemPath) : readlink($filesystemPath);
593			}
594
595	92		private function getPath($filesystemPath)
596			{
597	92		return substr($filesystemPath, $this->baseDirLength);
598			}
599			}
600

puli / repository

FilesystemRepository::symlinkMirror() C last analyzed 2016-02-05 10:19 UTC

Complexity

Size

Duplication

Code Coverage

Importance

How to fix Complexity

Long Method

Available Fixes

Duplication Side-by-Side

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FilesystemRepository::symlinkMirror() C
last analyzed 2016-02-05 10:19 UTC