FileHelper::matchPathname() - Code Metrics - Inspection of "Replace FileHelper::filterPath to PathMatcher" - yiisoft/files - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#22)

by Sergei

created 2020-11-10 20:55 UTC

FileHelper::matchPathname() C

↳ Parent: Project

Complexity

Conditions	12
Paths	72

Size

Total Lines	44
Code Lines	22

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	19
CRAP Score	12.7571

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	12
eloc	22
c	1
b	0
f	0
nc	72
nop	5
dl	0
loc	44
ccs	19
cts	23
cp	0.8261
crap	12.7571
rs	6.9666

How to fix Complexity

<?php

declare(strict_types=1);

namespace Yiisoft\Files;

use Exception;
use FilesystemIterator;
use InvalidArgumentException;
use RuntimeException;

/**
 * FileHelper provides useful methods to manage files and directories
 */
class FileHelper
{
    /**
     * Creates a new directory.
     *
     * This method is similar to the PHP `mkdir()` function except that it uses `chmod()` to set the permission of the
     * created directory in order to avoid the impact of the `umask` setting.
     *
     * @param string $path path of the directory to be created.
     * @param int $mode the permission to be set for the created directory.
     *
     * @return bool whether the directory is created successfully.
     */
    public static function createDirectory(string $path, int $mode = 0775): bool
    {
        $path = static::normalizePath($path);

        try {
            if (!mkdir($path, $mode, true) && !is_dir($path)) {
                return false;
            }
        } catch (Exception $e) {
            if (!is_dir($path)) {
                throw new RuntimeException(
                    "Failed to create directory \"$path\": " . $e->getMessage(),
                    $e->getCode(),
                    $e
                );
            }
        }

        return static::chmod($path, $mode);
    }

    /**
     * Set permissions directory.
     *
     * @param string $path
     * @param integer $mode
     *
     * @return boolean|null
     *
     * @throws RuntimeException
     */
    private static function chmod(string $path, int $mode): ?bool
    {
        try {
            return chmod($path, $mode);
        } catch (Exception $e) {
            throw new RuntimeException(
                "Failed to change permissions for directory \"$path\": " . $e->getMessage(),
                $e->getCode(),
                $e
            );
        }
    }

    /**
     * Normalizes a file/directory path.
     *
     * The normalization does the following work:
     *
     * - Convert all directory separators into `/` (e.g. "\a/b\c" becomes "/a/b/c")
     * - Remove trailing directory separators (e.g. "/a/b/c/" becomes "/a/b/c")
     * - Turn multiple consecutive slashes into a single one (e.g. "/a///b/c" becomes "/a/b/c")
     * - Remove ".." and "." based on their meanings (e.g. "/a/./b/../c" becomes "/a/c")
     *
     * @param string $path the file/directory path to be normalized
     *
     * @return string the normalized file/directory path
     */
    public static function normalizePath(string $path): string
    {
        $isWindowsShare = strpos($path, '\\\\') === 0;

        if ($isWindowsShare) {
            $path = substr($path, 2);
        }

        $path = rtrim(strtr($path, '/\\', '//'), '/');

        if (strpos('/' . $path, '/.') === false && strpos($path, '//') === false) {
            return $isWindowsShare ? "\\\\$path" : $path;
        }

        $parts = [];

        foreach (explode('/', $path) as $part) {
            if ($part === '..' && !empty($parts) && end($parts) !== '..') {
                array_pop($parts);
            } elseif ($part !== '.' && ($part !== '' || empty($parts))) {
                $parts[] = $part;
            }
        }

        $path = implode('/', $parts);

        if ($isWindowsShare) {
            $path = '\\\\' . $path;
        }

        return $path === '' ? '.' : $path;
    }

    /**
     * Removes a directory (and all its content) recursively.
     *
     * @param string $directory the directory to be deleted recursively.
     * @param array $options options for directory remove ({@see clearDirectory()}).
     *
     * @return void
     */
    public static function removeDirectory(string $directory, array $options = []): void
    {
        try {
            static::clearDirectory($directory, $options);
        } catch (InvalidArgumentException $e) {
            return;
        }

        if (is_link($directory)) {
            self::unlink($directory);
        } else {
            rmdir($directory);
        }
    }

    /**
     * Clear all directory content.
     *
     * @param string $directory the directory to be cleared.
     * @param array $options options for directory clear . Valid options are:
     *
     * - traverseSymlinks: boolean, whether symlinks to the directories should be traversed too.
     *   Defaults to `false`, meaning the content of the symlinked directory would not be deleted.
     *   Only symlink would be removed in that default case.
     *
     * @return void
     *
     * @throws InvalidArgumentException if unable to open directory
     */
    public static function clearDirectory(string $directory, array $options = []): void
    {
        $handle = static::openDirectory($directory);
        if (!empty($options['traverseSymlinks']) || !is_link($directory)) {
            while (($file = readdir($handle)) !== false) {
                if ($file === '.' || $file === '..') {
                    continue;
                }
                $path = $directory . '/' . $file;
                if (is_dir($path)) {
                    self::removeDirectory($path, $options);
                } else {
                    self::unlink($path);
                }
            }
            closedir($handle);
        }
    }

    /**
     * Removes a file or symlink in a cross-platform way.
     * @param string $path
     * @return bool
     */
    public static function unlink(string $path): bool
    {
        $isWindows = DIRECTORY_SEPARATOR === '\\';

        if (!$isWindows) {
            return unlink($path);
        }

        if (is_link($path) && is_dir($path)) {
            return rmdir($path);
        }

        if (!is_writable($path)) {
            chmod($path, 0777);
        }

        return unlink($path);
    }

    /**
     * Tells whether the path is a empty directory
     * @param string $path
     * @return bool
     */
    public static function isEmptyDirectory(string $path): bool
    {
        if (!is_dir($path)) {
            return false;
        }

        return !(new FilesystemIterator($path))->valid();
    }

    /**
     * Copies a whole directory as another one.
     *
     * The files and sub-directories will also be copied over.
     *
     * @param string $source the source directory.
     * @param string $destination the destination directory.
     * @param array $options options for directory copy. Valid options are:
     *
     * - dirMode: integer, the permission to be set for newly copied directories. Defaults to 0775.
     * - fileMode:  integer, the permission to be set for newly copied files. Defaults to the current environment
     *   setting.
     * - filter: PathMatcher
     * - recursive: boolean, whether the files under the subdirectories should also be copied. Defaults to true.
     * - beforeCopy: callback, a PHP callback that is called before copying each sub-directory or file. If the callback
     *   returns false, the copy operation for the sub-directory or file will be cancelled. The signature of the
     *   callback should be: `function ($from, $to)`, where `$from` is the sub-directory or file to be copied from,
     *   while `$to` is the copy target.
     * - afterCopy: callback, a PHP callback that is called after each sub-directory or file is successfully copied.
     *   The signature of the callback should be: `function ($from, $to)`, where `$from` is the sub-directory or file
     *   copied from, while `$to` is the copy target.
     * - copyEmptyDirectories: boolean, whether to copy empty directories. Set this to false to avoid creating
     *   directories that do not contain files. This affects directories that do not contain files initially as well as
     *   directories that do not contain files at the target destination because files have been filtered via `only` or
     *   `except`. Defaults to true.
     *
     * @return void
     * @throws Exception
     *
     * @throws InvalidArgumentException if unable to open directory
     */
    public static function copyDirectory(string $source, string $destination, array $options = []): void
    {
        $source = static::normalizePath($source);
        $destination = static::normalizePath($destination);

        static::assertNotSelfDirectory($source, $destination);

        $destinationExists = static::setDestination($destination, $options);

        $handle = static::openDirectory($source);

        $options = static::setBasePath($source, $options);

        while (($file = readdir($handle)) !== false) {
            if ($file === '.' || $file === '..') {
                continue;
            }

            $from = $source . '/' . $file;
            $to = $destination . '/' . $file;

            if (is_file($from)) {
                if (!isset($options['filter']) || $options['filter']->match($from)) {
                    if (!$destinationExists) {
                        static::createDirectory($destination, $options['dirMode'] ?? 0775);
                        $destinationExists = true;
                    }
                    copy($from, $to);
                    if (isset($options['fileMode'])) {
                        static::chmod($to, $options['fileMode']);
                    }
                }
            } elseif (!isset($options['recursive']) || $options['recursive']) {
                static::copyDirectory($from, $to, $options);
            }
        }

        closedir($handle);
    }

    /**
     * Check copy it self directory.
     *
     * @param string $source
     * @param string $destination
     *
     * @throws InvalidArgumentException
     */
    private static function assertNotSelfDirectory(string $source, string $destination): void
    {
        if ($source === $destination || strpos($destination, $source . '/') === 0) {
            throw new InvalidArgumentException('Trying to copy a directory to itself or a subdirectory.');
        }
    }

    /**
     * Open directory handle.
     *
     * @param string $directory
     *
     * @return resource
     *
     * @throws InvalidArgumentException
     */
    private static function openDirectory(string $directory)
    {
        $handle = @opendir($directory);

        if ($handle === false) {
            throw new InvalidArgumentException("Unable to open directory: $directory");
        }

        return $handle;
    }

    /**
     * Set base path directory.
     *
     * @param string $source
     * @param array $options
     *
     * @return array
     */
    private static function setBasePath(string $source, array $options): array
    {
        if (!isset($options['basePath'])) {
            // this should be done only once
            $options['basePath'] = realpath($source);
        }

        return $options;
    }

    /**
     * Set destination directory.
     *
     * @param string $destination
     * @param array $options
     *
     * @return bool
     */
    private static function setDestination(string $destination, array $options): bool
    {
        $destinationExists = is_dir($destination);

        if (!$destinationExists && (!isset($options['copyEmptyDirectories']) || $options['copyEmptyDirectories'])) {
            static::createDirectory($destination, $options['dirMode'] ?? 0775);
            $destinationExists = true;
        }

        return $destinationExists;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Yiisoft\Files;
6
7		use Exception;
8		use FilesystemIterator;
9		use InvalidArgumentException;
10		use RuntimeException;
11
12		/**
13		* FileHelper provides useful methods to manage files and directories
14		*/
15		class FileHelper
16		{
17		/**
18		* Creates a new directory.
19		*
20		* This method is similar to the PHP `mkdir()` function except that it uses `chmod()` to set the permission of the
21		* created directory in order to avoid the impact of the `umask` setting.
22		*
23		* @param string $path path of the directory to be created.
24		* @param int $mode the permission to be set for the created directory.
25		*
26		* @return bool whether the directory is created successfully.
27		*/
28		public static function createDirectory(string $path, int $mode = 0775): bool
29		{
30		$path = static::normalizePath($path);
31
32		try {
33		if (!mkdir($path, $mode, true) && !is_dir($path)) {
34		return false;
35		}
36		} catch (Exception $e) {
37		if (!is_dir($path)) {
38		throw new RuntimeException(
39		"Failed to create directory \"$path\": " . $e->getMessage(),
40		$e->getCode(),
41		$e
42		);
43		}
44		}
45
46		return static::chmod($path, $mode);
47		}
48
49		/**
50		* Set permissions directory.
51		*
52		* @param string $path
53		* @param integer $mode
54	35	*
55		* @return boolean\|null
56	35	*
57		* @throws RuntimeException
58		*/
59	35	private static function chmod(string $path, int $mode): ?bool
60	35	{
61		try {
62	2	return chmod($path, $mode);
63	2	} catch (Exception $e) {
64	1	throw new RuntimeException(
65	1	"Failed to change permissions for directory \"$path\": " . $e->getMessage(),
66	1	$e->getCode(),
67		$e
68		);
69		}
70		}
71
72	35	/**
73		* Normalizes a file/directory path.
74		*
75		* The normalization does the following work:
76		*
77		* - Convert all directory separators into `/` (e.g. "\a/b\c" becomes "/a/b/c")
78		* - Remove trailing directory separators (e.g. "/a/b/c/" becomes "/a/b/c")
79		* - Turn multiple consecutive slashes into a single one (e.g. "/a///b/c" becomes "/a/b/c")
80		* - Remove ".." and "." based on their meanings (e.g. "/a/./b/../c" becomes "/a/c")
81		*
82		* @param string $path the file/directory path to be normalized
83		*
84		* @return string the normalized file/directory path
85	35	*/
86		public static function normalizePath(string $path): string
87		{
88	35	$isWindowsShare = strpos($path, '\\\\') === 0;
89
90		if ($isWindowsShare) {
91		$path = substr($path, 2);
92		}
93
94		$path = rtrim(strtr($path, '/\\', '//'), '/');
95
96		if (strpos('/' . $path, '/.') === false && strpos($path, '//') === false) {
97		return $isWindowsShare ? "\\\\$path" : $path;
98		}
99
100		$parts = [];
101
102		foreach (explode('/', $path) as $part) {
103		if ($part === '..' && !empty($parts) && end($parts) !== '..') {
104		array_pop($parts);
105		} elseif ($part !== '.' && ($part !== '' \|\| empty($parts))) {
106		$parts[] = $part;
107		}
108		}
109
110		$path = implode('/', $parts);
111
112	35	if ($isWindowsShare) {
113		$path = '\\\\' . $path;
114	35	}
115
116	35	return $path === '' ? '.' : $path;
117	1	}
118
119		/**
120	35	* Removes a directory (and all its content) recursively.
121		*
122	35	* @param string $directory the directory to be deleted recursively.
123	35	* @param array $options options for directory remove ({@see clearDirectory()}).
124		*
125		* @return void
126	1	*/
127		public static function removeDirectory(string $directory, array $options = []): void
128	1	{
129	1	try {
130	1	static::clearDirectory($directory, $options);
131	1	} catch (InvalidArgumentException $e) {
132	1	return;
133		}
134
135		if (is_link($directory)) {
136	1	self::unlink($directory);
137		} else {
138	1	rmdir($directory);
139	1	}
140		}
141
142	1	/**
143		* Clear all directory content.
144		*
145		* @param string $directory the directory to be cleared.
146		* @param array $options options for directory clear . Valid options are:
147		*
148		* - traverseSymlinks: boolean, whether symlinks to the directories should be traversed too.
149		* Defaults to `false`, meaning the content of the symlinked directory would not be deleted.
150		* Only symlink would be removed in that default case.
151		*
152		* @return void
153	35	*
154		* @throws InvalidArgumentException if unable to open directory
155		*/
156	35	public static function clearDirectory(string $directory, array $options = []): void
157	1	{
158	1	$handle = static::openDirectory($directory);
159		if (!empty($options['traverseSymlinks']) \|\| !is_link($directory)) {
160		while (($file = readdir($handle)) !== false) {
161	35	if ($file === '.' \|\| $file === '..') {
162	2	continue;
163		}
164	35	$path = $directory . '/' . $file;
165		if (is_dir($path)) {
166	35	self::removeDirectory($path, $options);
167		} else {
168		self::unlink($path);
169		}
170		}
171		closedir($handle);
172		}
173		}
174
175		/**
176		* Removes a file or symlink in a cross-platform way.
177		* @param string $path
178		* @return bool
179		*/
180		public static function unlink(string $path): bool
181		{
182	35	$isWindows = DIRECTORY_SEPARATOR === '\\';
183
184	35	if (!$isWindows) {
185	35	return unlink($path);
186	35	}
187	35
188	35	if (is_link($path) && is_dir($path)) {
189		return rmdir($path);
190	23	}
191	23
192	23	if (!is_writable($path)) {
193		chmod($path, 0777);
194	15	}
195
196		return unlink($path);
197	35	}
198
199	35	/**
200		* Tells whether the path is a empty directory
201		* @param string $path
202		* @return bool
203		*/
204		public static function isEmptyDirectory(string $path): bool
205		{
206	16	if (!is_dir($path)) {
207		return false;
208	16	}
209
210	16	return !(new FilesystemIterator($path))->valid();
211	16	}
212
213		/**
214		* Copies a whole directory as another one.
215		*
216		* The files and sub-directories will also be copied over.
217		*
218		* @param string $source the source directory.
219		* @param string $destination the destination directory.
220		* @param array $options options for directory copy. Valid options are:
221		*
222		* - dirMode: integer, the permission to be set for newly copied directories. Defaults to 0775.
223		* - fileMode: integer, the permission to be set for newly copied files. Defaults to the current environment
224		* setting.
225		* - filter: PathMatcher
226		* - recursive: boolean, whether the files under the subdirectories should also be copied. Defaults to true.
227		* - beforeCopy: callback, a PHP callback that is called before copying each sub-directory or file. If the callback
228		* returns false, the copy operation for the sub-directory or file will be cancelled. The signature of the
229		* callback should be: `function ($from, $to)`, where `$from` is the sub-directory or file to be copied from,
230	1	* while `$to` is the copy target.
231		* - afterCopy: callback, a PHP callback that is called after each sub-directory or file is successfully copied.
232	1	* The signature of the callback should be: `function ($from, $to)`, where `$from` is the sub-directory or file
233	1	* copied from, while `$to` is the copy target.
234		* - copyEmptyDirectories: boolean, whether to copy empty directories. Set this to false to avoid creating
235		* directories that do not contain files. This affects directories that do not contain files initially as well as
236	1	* directories that do not contain files at the target destination because files have been filtered via `only` or
237		* `except`. Defaults to true.
238		*
239		* @return void
240		* @throws Exception
241		*
242		* @throws InvalidArgumentException if unable to open directory
243		*/
244		public static function copyDirectory(string $source, string $destination, array $options = []): void
245		{
246		$source = static::normalizePath($source);
247		$destination = static::normalizePath($destination);
248
249		static::assertNotSelfDirectory($source, $destination);
250
251		$destinationExists = static::setDestination($destination, $options);
252
253		$handle = static::openDirectory($source);
254
255		$options = static::setBasePath($source, $options);
256
257		while (($file = readdir($handle)) !== false) {
258		if ($file === '.' \|\| $file === '..') {
259		continue;
260		}
261
262		$from = $source . '/' . $file;
263		$to = $destination . '/' . $file;
264
265		if (is_file($from)) {
266		if (!isset($options['filter']) \|\| $options['filter']->match($from)) {
267		if (!$destinationExists) {
268		static::createDirectory($destination, $options['dirMode'] ?? 0775);
269		$destinationExists = true;
270		}
271		copy($from, $to);
272		if (isset($options['fileMode'])) {
273		static::chmod($to, $options['fileMode']);
274		}
275		}
276		} elseif (!isset($options['recursive']) \|\| $options['recursive']) {
277		static::copyDirectory($from, $to, $options);
278		}
279		}
280
281		closedir($handle);
282		}
283
284		/**
285		* Check copy it self directory.
286		*
287		* @param string $source
288		* @param string $destination
289	12	*
290		* @throws InvalidArgumentException
291	12	*/
292	12	private static function assertNotSelfDirectory(string $source, string $destination): void
293		{
294	12	if ($source === $destination \|\| strpos($destination, $source . '/') === 0) {
295		throw new InvalidArgumentException('Trying to copy a directory to itself or a subdirectory.');
296	10	}
297		}
298	10
299		/**
300	9	* Open directory handle.
301		*
302	9	* @param string $directory
303	9	*
304	9	* @return resource
305		*
306		* @throws InvalidArgumentException
307	7	*/
308	7	private static function openDirectory(string $directory)
309		{
310	7	$handle = @opendir($directory);
311	7
312	7	if ($handle === false) {
313	2	throw new InvalidArgumentException("Unable to open directory: $directory");
314	2	}
315
316	7	return $handle;
317	7	}
318	7
319		/**
320	6	* Set base path directory.
321	5	*
322		* @param string $source
323		* @param array $options
324		*
325		* @return array
326	9	*/
327	9	private static function setBasePath(string $source, array $options): array
328		{
329		if (!isset($options['basePath'])) {
330		// this should be done only once
331		$options['basePath'] = realpath($source);
332		}
333
334		return $options;
335		}
336
337	12	/**
338		* Set destination directory.
339	12	*
340	2	* @param string $destination
341		* @param array $options
342	10	*
343		* @return bool
344		*/
345		private static function setDestination(string $destination, array $options): bool
346		{
347		$destinationExists = is_dir($destination);
348
349		if (!$destinationExists && (!isset($options['copyEmptyDirectories']) \|\| $options['copyEmptyDirectories'])) {
350		static::createDirectory($destination, $options['dirMode'] ?? 0775);
351		$destinationExists = true;
352	35	}
353
354	35	return $destinationExists;
355		}
356		}
357

yiisoft / files

Pull Request — master (#22)

FileHelper::matchPathname() C

Complexity

Size

Duplication

Code Coverage

Importance

How to fix Complexity

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