FileExplorer::matchesPattern() - Code Metrics - Inspection of "Let's get sassy" - stakx-io/stakx - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#69)

by Vladimir

created 2018-06-26 06:21 UTC

FileExplorer::matchesPattern() B

↳ Parent: FileExplorer

Complexity

Conditions	8
Paths	5

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	11.0764

Importance

Changes

Metric	Value
dl	0
loc	23
c	0
b	0
f	0
rs	8.4444
ccs	7
cts	11
cp	0.6364
cc	8
nc	5
nop	1
crap	11.0764

<?php

/**
 * @copyright 2018 Vladimir Jimenez
 * @license   https://github.com/stakx-io/stakx/blob/master/LICENSE.md MIT
 */

namespace allejo\stakx\Filesystem;

/**
 * The core class to handle reading files from directories on the filesystem.
 *
 * This class is the macOS Finder or Windows Explorer equivalent for stakx. New instances of this class should only be
 * created through the `FileExplorer::create()` helper function. To access the file iterator from this instance, use
 * `FileExplorer::getExplorer()` to retrieve File objects.
 *
 * @internal
 */
class FileExplorer extends \RecursiveFilterIterator implements \Iterator
{
    /**
     * A bitwise flag to have FileExplorer ignore all files unless its been explicitly included; all other files will be
     * ignored.
     */
    const INCLUDE_ONLY_FILES = 0x1;

    /**
     * A bitwise flag to have FileExplorer search files starting with a period as well.
     */
    const ALLOW_DOT_FILES = 0x2;

    /**
     * A bitwise flag to have FileExplorer ignore any directories.
     */
    const IGNORE_DIRECTORIES = 0x4;

    /**
     * A list of common version control folders to ignore.
     *
     * The following folders should be ignored explicitly by the end user. Their usage isn't as popular so adding more
     * conditions to loop through will only slow down FileExplorer.
     *
     *   - 'CVS'
     *   - '_darcs'
     *   - '.arch-params'
     *   - '.monotone'
     *   - '.bzr'
     *
     * @var string[]
     */
    public static $vcsPatterns = ['.git', '.hg', '.svn', '_svn'];

    /**
     * A list of phrases to exclude from the search.
     *
     * @var string[]
     */
    private $excludes;

    /**
     * A list of phrases to explicitly include in the search.
     *
     * @var string[]
     */
    private $includes;

    /**
     * The bitwise sum of the flags applied to this FileExplorer instance.
     *
     * @var int|null
     */
    private $flags;

    /**
     * FileExplorer constructor.
     *
     * @param \RecursiveIterator $iterator
     * @param string[]           $excludes
     * @param string[]           $includes
     * @param int|null           $flags
     */
    public function __construct(\RecursiveIterator $iterator, array $excludes = [], array $includes = [], $flags = null)
    {
        parent::__construct($iterator);

        $this->excludes = array_merge(self::$vcsPatterns, $excludes);
        $this->includes = $includes;
        $this->flags = $flags;
    }

    /**
     * @return string
     */
    public function __toString()
    {
        return $this->current()->getFilename();
    }

    /**
     * {@inheritdoc}
     */
    public function accept()
    {
        $filePath = $this->current()->getRelativeFilePath();

        return $this->matchesPattern($filePath);
    }

    /**
     * Get the current File object.
     *
     * @return File
     */
    public function current()
    {
        /** @var \SplFileInfo $current */
        $current = parent::current();

        return new File($current->getPathname());
    }

    /**
     * {@inheritdoc}
     */
    public function getChildren()
    {
        return new self(
            $this->getInnerIterator()->getChildren(),
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->excludes,
            $this->includes,
            $this->flags
        );
    }

    /**
     * Get an Iterator with all of the files that have met the search requirements.
     *
     * @return \RecursiveIteratorIterator
     */
    public function getExplorer()
    {
        return new \RecursiveIteratorIterator($this);
    }

    /**
     * Check whether or not a relative file path matches the definition given to this FileExplorer instance.
     *
     * @param string $filePath
     *
     * @return bool
     */
    public function matchesPattern($filePath)
    {
        if (self::strpos_array($filePath, $this->includes))
        {
            return true;
        }
        if (($this->flags & self::INCLUDE_ONLY_FILES) && !$this->current()->isDir())
        {
            return false;
        }
        if (($this->flags & self::IGNORE_DIRECTORIES) && $this->current()->isDir())
        {
            return false;
        }

        if (!($this->flags & self::ALLOW_DOT_FILES) &&
            preg_match('#(^|\\\\|\/)\..+(\\\\|\/|$)#', $filePath) === 1)
        {
            return false;
        }

        return self::strpos_array($filePath, $this->excludes) === false;
    }

    /**
     * Create an instance of FileExplorer from a directory path as a string.
     *
     * @param string   $folder   The path to the folder we're scanning
     * @param string[] $excludes
     * @param string[] $includes
     * @param int|null $flags
     *
     * @return FileExplorer
     */
    public static function create($folder, $excludes = [], $includes = [], $flags = null)
    {
        $folder = File::realpath($folder);

        $iterator = new \RecursiveDirectoryIterator($folder, \RecursiveDirectoryIterator::SKIP_DOTS);

        return new self($iterator, $excludes, $includes, $flags);
    }

    /**
     * Search a given string for an array of possible elements.
     *
     * @param string   $haystack
     * @param string[] $needle
     * @param int      $offset
     *
     * @return bool True if an element from the given array was found in the string
     */
    private static function strpos_array($haystack, $needle, $offset = 0)

    {
        if (!is_array($needle))
        {
            $needle = [$needle];

        }

        foreach ($needle as $query)
        {
            if (substr($query, 0, 1) == '/' && substr($query, -1, 1) == '/' && preg_match($query, $haystack) === 1)
            {
                return true;
            }

            if (strpos($haystack, $query, $offset) !== false)
            { // stop on first true result
                return true;
            }
        }

        return false;
    }
}


1		<?php
2
3		/**
4		* @copyright 2018 Vladimir Jimenez
5		* @license https://github.com/stakx-io/stakx/blob/master/LICENSE.md MIT
6		*/
7
8		namespace allejo\stakx\Filesystem;
9
10		/**
11		* The core class to handle reading files from directories on the filesystem.
12		*
13		* This class is the macOS Finder or Windows Explorer equivalent for stakx. New instances of this class should only be
14		* created through the `FileExplorer::create()` helper function. To access the file iterator from this instance, use
15		* `FileExplorer::getExplorer()` to retrieve File objects.
16		*
17		* @internal
18		*/
19		class FileExplorer extends \RecursiveFilterIterator implements \Iterator
20		{
21		/**
22		* A bitwise flag to have FileExplorer ignore all files unless its been explicitly included; all other files will be
23		* ignored.
24		*/
25		const INCLUDE_ONLY_FILES = 0x1;
26
27		/**
28		* A bitwise flag to have FileExplorer search files starting with a period as well.
29		*/
30		const ALLOW_DOT_FILES = 0x2;
31
32		/**
33		* A bitwise flag to have FileExplorer ignore any directories.
34		*/
35		const IGNORE_DIRECTORIES = 0x4;
36
37		/**
38		* A list of common version control folders to ignore.
39		*
40		* The following folders should be ignored explicitly by the end user. Their usage isn't as popular so adding more
41		* conditions to loop through will only slow down FileExplorer.
42		*
43		* - 'CVS'
44		* - '_darcs'
45		* - '.arch-params'
46		* - '.monotone'
47		* - '.bzr'
48		*
49		* @var string[]
50		*/
51		public static $vcsPatterns = ['.git', '.hg', '.svn', '_svn'];
52
53		/**
54		* A list of phrases to exclude from the search.
55		*
56		* @var string[]
57		*/
58		private $excludes;
59
60		/**
61		* A list of phrases to explicitly include in the search.
62		*
63		* @var string[]
64		*/
65		private $includes;
66
67		/**
68		* The bitwise sum of the flags applied to this FileExplorer instance.
69		*
70		* @var int\|null
71		*/
72		private $flags;
73
74		/**
75		* FileExplorer constructor.
76		*
77		* @param \RecursiveIterator $iterator
78		* @param string[] $excludes
79		* @param string[] $includes
80		* @param int\|null $flags
81		*/
82	38	public function __construct(\RecursiveIterator $iterator, array $excludes = [], array $includes = [], $flags = null)
83		{
84	38	parent::__construct($iterator);
85
86	38	$this->excludes = array_merge(self::$vcsPatterns, $excludes);
87	38	$this->includes = $includes;
88	38	$this->flags = $flags;
89	38	}
90
91		/**
92		* @return string
93		*/
94		public function __toString()
95		{
96		return $this->current()->getFilename();
97		}
98
99		/**
100		* {@inheritdoc}
101		*/
102	38	public function accept()
103		{
104	38	$filePath = $this->current()->getRelativeFilePath();
105
106	38	return $this->matchesPattern($filePath);
107		}
108
109		/**
110		* Get the current File object.
111		*
112		* @return File
113		*/
114	38	public function current()
115		{
116		/** @var \SplFileInfo $current */
117	38	$current = parent::current();
118
119	38	return new File($current->getPathname());
120		}
121
122		/**
123		* {@inheritdoc}
124		*/
125		public function getChildren()
126		{
127		return new self(
128		$this->getInnerIterator()->getChildren(),
		0 ignored issues – show Bug introduced 2017-11-25 21:35 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Iterator` as the method `getChildren()` does only exist in the following implementations of said interface: `DoctrineTest\InstantiatorTestAsset\PharAsset`, `PHPUnit_Runner_Filter_GroupFilterIterator`, `PHPUnit_Runner_Filter_Group_Exclude`, `PHPUnit_Runner_Filter_Group_Include`, `PHPUnit_Runner_Filter_Test`, `PHPUnit_Util_TestSuiteIterator`, `PHP_CodeCoverage_Report_Node_Iterator`, `ParentIterator`, `Phar`, `PharData`, `RecursiveArrayIterator`, `RecursiveCachingIterator`, `RecursiveCallbackFilterIterator`, `RecursiveDirectoryIterator`, `RecursiveFilterIterator`, `RecursiveRegexIterator`, `SimpleXMLIterator`, `SplFileObject`, `SplTempFileObject`, `Symfony\Component\Finder...DirectoryFilterIterator`, `Symfony\Component\Finder...ursiveDirectoryIterator`, `allejo\stakx\Filesystem\FileExplorer`. 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...
129		$this->excludes,
130		$this->includes,
131		$this->flags
132		);
133		}
134
135		/**
136		* Get an Iterator with all of the files that have met the search requirements.
137		*
138		* @return \RecursiveIteratorIterator
139		*/
140	38	public function getExplorer()
141		{
142	38	return new \RecursiveIteratorIterator($this);
143		}
144
145		/**
146		* Check whether or not a relative file path matches the definition given to this FileExplorer instance.
147		*
148		* @param string $filePath
149		*
150		* @return bool
151		*/
152	38	public function matchesPattern($filePath)
153		{
154	38	if (self::strpos_array($filePath, $this->includes))
155		{
156		return true;
157		}
158	38	if (($this->flags & self::INCLUDE_ONLY_FILES) && !$this->current()->isDir())
159		{
160		return false;
161		}
162	38	if (($this->flags & self::IGNORE_DIRECTORIES) && $this->current()->isDir())
163		{
164		return false;
165		}
166
167	38	if (!($this->flags & self::ALLOW_DOT_FILES) &&
168	38	preg_match('#(^\|\\\\\|\/)\..+(\\\\\|\/\|$)#', $filePath) === 1)
169		{
170		return false;
171		}
172
173	38	return self::strpos_array($filePath, $this->excludes) === false;
174		}
175
176		/**
177		* Create an instance of FileExplorer from a directory path as a string.
178		*
179		* @param string $folder The path to the folder we're scanning
180		* @param string[] $excludes
181		* @param string[] $includes
182		* @param int\|null $flags
183		*
184		* @return FileExplorer
185		*/
186	38	public static function create($folder, $excludes = [], $includes = [], $flags = null)
187		{
188	38	$folder = File::realpath($folder);
		0 ignored issues – show Coding Style introduced 2017-03-25 02:33 UTC by Report Bug Copy Issue Report Consider using a different name than the parameter `$folder`. This often makes code more readable. Loading history...
189	38	$iterator = new \RecursiveDirectoryIterator($folder, \RecursiveDirectoryIterator::SKIP_DOTS);
190
191	38	return new self($iterator, $excludes, $includes, $flags);
192		}
193
194		/**
195		* Search a given string for an array of possible elements.
196		*
197		* @param string $haystack
198		* @param string[] $needle
199		* @param int $offset
200		*
201		* @return bool True if an element from the given array was found in the string
202		*/
203	38	private static function strpos_array($haystack, $needle, $offset = 0)
		0 ignored issues – show Coding Style introduced 2016-10-23 06:16 UTC by Report Bug Copy Issue Report This method is not in camel caps format. This check looks for method names that are not written in camelCase. In camelCase names are written without any punctuation, the start of each new word being marked by a capital letter. Thus the name database connection seeker becomes `databaseConnectionSeeker`. Loading history...
204		{
205	38	if (!is_array($needle))
206		{
207		$needle = [$needle];
		0 ignored issues – show Coding Style introduced 2017-03-25 02:33 UTC by Report Bug Copy Issue Report Consider using a different name than the parameter `$needle`. This often makes code more readable. Loading history...
208		}
209
210	38	foreach ($needle as $query)
211		{
212	38	if (substr($query, 0, 1) == '/' && substr($query, -1, 1) == '/' && preg_match($query, $haystack) === 1)
213		{
214		return true;
215		}
216
217	38	if (strpos($haystack, $query, $offset) !== false)
218		{ // stop on first true result
219	38	return true;
220		}
221		}
222
223	38	return false;
224		}
225		}
226

stakx-io / stakx

Pull Request — master (#69)

FileExplorer::matchesPattern() B

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