FileHelper::matchPathname() - Code Metrics - Inspection of "Fix #20: Replace FileHelper::filterPath with PathM..." - yiisoft/files - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 272916...3e3561 )

by Alexander

created 2020-11-23 20:39 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 RecursiveDirectoryIterator;
use RecursiveIteratorIterator;
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 int $mode
     *
     * @throws RuntimeException
     *
     * @return bool|null
     */
    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()}).
     */
    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.
     *
     * @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 $options options for directory copy. Valid options are:
     *
     * - dirMode: integer, the permission to be set for newly copied directories. Defaults to 0775.
     * - fileMode: integer, the permission to be set for newly copied files. Defaults to the current environment
     *   setting.
     * - filter: a filter to apply while copying files. It should be an instance of {@see PathMatcherInterface}.
     * - recursive: boolean, whether the files under the subdirectories should also be copied. Defaults to true.
     * - beforeCopy: callback, a PHP callback that is called before copying each sub-directory or file. If the callback
     *   returns false, the copy operation for the sub-directory or file will be cancelled. The signature of the
     *   callback should be: `function ($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.
     *
     * @throws InvalidArgumentException if unable to open directory
     * @throws Exception
     */
    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 (!isset($options['filter']) || $options['filter']->match($from)) {
                if (is_file($from)) {
                    if (!$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
     *
     * @throws InvalidArgumentException
     *
     * @return resource
     */
    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;
    }

    /**
     * Returns the last modification time for the given path.
     *
     * If the path is a directory, any nested files/directories will be checked as well.
     *
     * @param string $path the directory to be checked
     *
     * @return int Unix timestamp representing the last modification time
     */
    public static function lastModifiedTime(string $path): int
    {
        if (is_file($path)) {
            return filemtime($path);
        }

        $times = [filemtime($path)];

        $iterator = new RecursiveIteratorIterator(
            new RecursiveDirectoryIterator($path, FilesystemIterator::SKIP_DOTS),
            RecursiveIteratorIterator::SELF_FIRST
        );

        foreach ($iterator as $p => $info) {
            $times[] = filemtime($p);
        }

        return max($times);
    }
}


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 RecursiveDirectoryIterator;
11		use RecursiveIteratorIterator;
12		use RuntimeException;
13
14		/**
15		* FileHelper provides useful methods to manage files and directories
16		*/
17		class FileHelper
18		{
19		/**
20		* Creates a new directory.
21		*
22		* This method is similar to the PHP `mkdir()` function except that it uses `chmod()` to set the permission of the
23		* created directory in order to avoid the impact of the `umask` setting.
24		*
25		* @param string $path path of the directory to be created.
26		* @param int $mode the permission to be set for the created directory.
27		*
28		* @return bool whether the directory is created successfully.
29		*/
30	36	public static function createDirectory(string $path, int $mode = 0775): bool
31		{
32	36	$path = static::normalizePath($path);
33
34		try {
35	36	if (!mkdir($path, $mode, true) && !is_dir($path)) {
36	36	return false;
37		}
38	2	} catch (Exception $e) {
39	2	if (!is_dir($path)) {
40	1	throw new RuntimeException(
41	1	"Failed to create directory \"$path\": " . $e->getMessage(),
42	1	$e->getCode(),
43		$e
44		);
45		}
46		}
47
48	36	return static::chmod($path, $mode);
49		}
50
51		/**
52		* Set permissions directory.
53		*
54		* @param string $path
55		* @param int $mode
56		*
57		* @throws RuntimeException
58		*
59		* @return bool\|null
60		*/
61	36	private static function chmod(string $path, int $mode): ?bool
62		{
63		try {
64	36	return chmod($path, $mode);
65		} catch (Exception $e) {
66		throw new RuntimeException(
67		"Failed to change permissions for directory \"$path\": " . $e->getMessage(),
68		$e->getCode(),
69		$e
70		);
71		}
72		}
73
74		/**
75		* Normalizes a file/directory path.
76		*
77		* The normalization does the following work:
78		*
79		* - Convert all directory separators into `/` (e.g. "\a/b\c" becomes "/a/b/c")
80		* - Remove trailing directory separators (e.g. "/a/b/c/" becomes "/a/b/c")
81		* - Turn multiple consecutive slashes into a single one (e.g. "/a///b/c" becomes "/a/b/c")
82		* - Remove ".." and "." based on their meanings (e.g. "/a/./b/../c" becomes "/a/c")
83		*
84		* @param string $path the file/directory path to be normalized
85		*
86		* @return string the normalized file/directory path
87		*/
88	36	public static function normalizePath(string $path): string
89		{
90	36	$isWindowsShare = strpos($path, '\\\\') === 0;
91
92	36	if ($isWindowsShare) {
93	1	$path = substr($path, 2);
94		}
95
96	36	$path = rtrim(strtr($path, '/\\', '//'), '/');
97
98	36	if (strpos('/' . $path, '/.') === false && strpos($path, '//') === false) {
99	36	return $isWindowsShare ? "\\\\$path" : $path;
100		}
101
102	1	$parts = [];
103
104	1	foreach (explode('/', $path) as $part) {
105	1	if ($part === '..' && !empty($parts) && end($parts) !== '..') {
106	1	array_pop($parts);
107	1	} elseif ($part !== '.' && ($part !== '' \|\| empty($parts))) {
108	1	$parts[] = $part;
109		}
110		}
111
112	1	$path = implode('/', $parts);
113
114	1	if ($isWindowsShare) {
115	1	$path = '\\\\' . $path;
116		}
117
118	1	return $path === '' ? '.' : $path;
119		}
120
121		/**
122		* Removes a directory (and all its content) recursively.
123		*
124		* @param string $directory the directory to be deleted recursively.
125		* @param array $options options for directory remove ({@see clearDirectory()}).
126		*/
127	36	public static function removeDirectory(string $directory, array $options = []): void
128		{
129		try {
130	36	static::clearDirectory($directory, $options);
131	1	} catch (InvalidArgumentException $e) {
132	1	return;
133		}
134
135	36	if (is_link($directory)) {
136	2	self::unlink($directory);
137		} else {
138	36	rmdir($directory);
139		}
140	36	}
141
142		/**
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		* @throws InvalidArgumentException if unable to open directory
153		*/
154	36	public static function clearDirectory(string $directory, array $options = []): void
155		{
156	36	$handle = static::openDirectory($directory);
157	36	if (!empty($options['traverseSymlinks']) \|\| !is_link($directory)) {
158	36	while (($file = readdir($handle)) !== false) {
159	36	if ($file === '.' \|\| $file === '..') {
160	36	continue;
161		}
162	25	$path = $directory . '/' . $file;
163	25	if (is_dir($path)) {
164	25	self::removeDirectory($path, $options);
165		} else {
166	17	self::unlink($path);
167		}
168		}
169	36	closedir($handle);
170		}
171	36	}
172
173		/**
174		* Removes a file or symlink in a cross-platform way.
175		*
176		* @param string $path
177		*
178		* @return bool
179		*/
180	18	public static function unlink(string $path): bool
181		{
182	18	$isWindows = DIRECTORY_SEPARATOR === '\\';
183
184	18	if (!$isWindows) {
185	18	return unlink($path);
186		}
187
188		if (is_link($path) && is_dir($path)) {
189		return rmdir($path);
190		}
191
192		if (!is_writable($path)) {
193		chmod($path, 0777);
194		}
195
196		return unlink($path);
197		}
198
199		/**
200		* Tells whether the path is a empty directory
201		*
202		* @param string $path
203		*
204		* @return bool
205		*/
206	1	public static function isEmptyDirectory(string $path): bool
207		{
208	1	if (!is_dir($path)) {
209	1	return false;
210		}
211
212	1	return !(new FilesystemIterator($path))->valid();
213		}
214
215		/**
216		* Copies a whole directory as another one.
217		*
218		* The files and sub-directories will also be copied over.
219		*
220		* @param string $source the source directory.
221		* @param string $destination the destination directory.
222		* @param array $options options for directory copy. Valid options are:
223		*
224		* - dirMode: integer, the permission to be set for newly copied directories. Defaults to 0775.
225		* - fileMode: integer, the permission to be set for newly copied files. Defaults to the current environment
226		* setting.
227		* - filter: a filter to apply while copying files. It should be an instance of {@see PathMatcherInterface}.
228		* - recursive: boolean, whether the files under the subdirectories should also be copied. Defaults to true.
229		* - beforeCopy: callback, a PHP callback that is called before copying each sub-directory or file. If the callback
230		* returns false, the copy operation for the sub-directory or file will be cancelled. The signature of the
231		* callback should be: `function ($from, $to)`, where `$from` is the sub-directory or file to be copied from,
232		* while `$to` is the copy target.
233		* - afterCopy: callback, a PHP callback that is called after each sub-directory or file is successfully copied.
234		* The signature of the callback should be: `function ($from, $to)`, where `$from` is the sub-directory or file
235		* copied from, while `$to` is the copy target.
236		* - copyEmptyDirectories: boolean, whether to copy empty directories. Set this to false to avoid creating
237		* directories that do not contain files. This affects directories that do not contain files initially as well as
238		* directories that do not contain files at the target destination because files have been filtered via `only` or
239		* `except`. Defaults to true.
240		*
241		* @throws InvalidArgumentException if unable to open directory
242		* @throws Exception
243		*/
244	12	public static function copyDirectory(string $source, string $destination, array $options = []): void
245		{
246	12	$source = static::normalizePath($source);
247	12	$destination = static::normalizePath($destination);
248
249	12	static::assertNotSelfDirectory($source, $destination);
250
251	10	$destinationExists = static::setDestination($destination, $options);
252
253	10	$handle = static::openDirectory($source);
254
255	9	$options = static::setBasePath($source, $options);
256
257	9	while (($file = readdir($handle)) !== false) {
258	9	if ($file === '.' \|\| $file === '..') {
259	9	continue;
260		}
261
262	7	$from = $source . '/' . $file;
263	7	$to = $destination . '/' . $file;
264
265	7	if (!isset($options['filter']) \|\| $options['filter']->match($from)) {
266	7	if (is_file($from)) {
267	7	if (!$destinationExists) {
268	2	static::createDirectory($destination, $options['dirMode'] ?? 0775);
269	2	$destinationExists = true;
270		}
271	7	copy($from, $to);
272	7	if (isset($options['fileMode'])) {
273	7	static::chmod($to, $options['fileMode']);
274		}
275	6	} elseif (!isset($options['recursive']) \|\| $options['recursive']) {
276	5	static::copyDirectory($from, $to, $options);
277		}
278		}
279		}
280
281	9	closedir($handle);
282	9	}
283
284		/**
285		* Check copy it self directory.
286		*
287		* @param string $source
288		* @param string $destination
289		*
290		* @throws InvalidArgumentException
291		*/
292	12	private static function assertNotSelfDirectory(string $source, string $destination): void
293		{
294	12	if ($source === $destination \|\| strpos($destination, $source . '/') === 0) {
295	2	throw new InvalidArgumentException('Trying to copy a directory to itself or a subdirectory.');
296		}
297	10	}
298
299		/**
300		* Open directory handle.
301		*
302		* @param string $directory
303		*
304		* @throws InvalidArgumentException
305		*
306		* @return resource
307		*/
308	36	private static function openDirectory(string $directory)
309		{
310	36	$handle = @opendir($directory);
311
312	36	if ($handle === false) {
313	3	throw new InvalidArgumentException("Unable to open directory: $directory");
314		}
315
316	36	return $handle;
317		}
318
319		/**
320		* Set base path directory.
321		*
322		* @param string $source
323		* @param array $options
324		*
325		* @return array
326		*/
327	9	private static function setBasePath(string $source, array $options): array
328		{
329	9	if (!isset($options['basePath'])) {
330		// this should be done only once
331	9	$options['basePath'] = realpath($source);
332		}
333
334	9	return $options;
335		}
336
337		/**
338		* Set destination directory.
339		*
340		* @param string $destination
341		* @param array $options
342		*
343		* @return bool
344		*/
345	10	private static function setDestination(string $destination, array $options): bool
346		{
347	10	$destinationExists = is_dir($destination);
348
349	10	if (!$destinationExists && (!isset($options['copyEmptyDirectories']) \|\| $options['copyEmptyDirectories'])) {
350	6	static::createDirectory($destination, $options['dirMode'] ?? 0775);
351	6	$destinationExists = true;
352		}
353
354	10	return $destinationExists;
355		}
356
357		/**
358		* Returns the last modification time for the given path.
359		*
360		* If the path is a directory, any nested files/directories will be checked as well.
361		*
362		* @param string $path the directory to be checked
363		*
364		* @return int Unix timestamp representing the last modification time
365		*/
366	1	public static function lastModifiedTime(string $path): int
367		{
368	1	if (is_file($path)) {
369		return filemtime($path);
370		}
371
372	1	$times = [filemtime($path)];
373
374	1	$iterator = new RecursiveIteratorIterator(
375	1	new RecursiveDirectoryIterator($path, FilesystemIterator::SKIP_DOTS),
376	1	RecursiveIteratorIterator::SELF_FIRST
377		);
378
379	1	foreach ($iterator as $p => $info) {
380	1	$times[] = filemtime($p);
381		}
382
383	1	return max($times);
384		}
385		}
386

yiisoft / files

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FileHelper::matchPathname() C

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