FileHelper::lastModifiedTime() - Code Metrics - Inspection of "Fix #16: Adopt psalm, add more tests, minor fixes" - yiisoft/files - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( 3e3561...2dcc8a )

by Alexander

created 2020-11-25 08:23 UTC

FileHelper::lastModifiedTime() A

↳ Parent: FileHelper

Complexity

Conditions	3
Paths	3

Size

Total Lines	19
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	10
CRAP Score	3

Importance

Changes

Metric	Value
eloc	9
c	0
b	0
f	0
dl	0
loc	19
ccs	10
cts	10
cp	1
rs	9.9666
cc	3
nc	3
nop	1
crap	3

<?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 . '": ' . $e->getMessage(),
                    (int)$e->getCode(),
                    $e
                );
            }
        }

        return chmod($path, $mode);
    }

    /**
     * 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 (file_exists($path) && !is_writable($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
     *
     * @psalm-param array{
     *   dirMode?: int,
     *   fileMode?: int,
     *   filter?: \Yiisoft\Files\PathMatcher\PathMatcherInterface,
     *   recursive?: bool,
     *   beforeCopy?: callable,
     *   afterCopy?: callable,
     *   copyEmptyDirectories?: bool,
     * } $options
     */
    public static function copyDirectory(string $source, string $destination, array $options = []): void
    {
        $source = static::normalizePath($source);
        $destination = static::normalizePath($destination);

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

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

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

        if (!isset($options['basePath'])) {
            $options['basePath'] = realpath($source);
        }

        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'])) {
                        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;
    }

    /**
     * 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 static::modifiedTime($path);
        }

        $times = [static::modifiedTime($path)];

        /** @var iterable<string, string> $iterator */
        $iterator = new RecursiveIteratorIterator(
            new RecursiveDirectoryIterator($path, FilesystemIterator::SKIP_DOTS),
            RecursiveIteratorIterator::SELF_FIRST
        );

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

        return max($times);
    }

    private static function modifiedTime(string $path): int
    {
        return (int)filemtime($path);
    }
}


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

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