Completed
Push — master ( dafc3a...b25186 )
by Vladimir
02:19
created

FileExplorer::accept()   B

Complexity

Conditions 5
Paths 4

Size

Total Lines 12
Code Lines 7

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 7
CRAP Score 5

Importance

Changes 0
Metric Value
cc 5
eloc 7
nc 4
nop 0
dl 0
loc 12
ccs 7
cts 7
cp 1
crap 5
rs 8.8571
c 0
b 0
f 0
1
<?php
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/**
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 * @copyright 2016 Vladimir Jimenez
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 * @license   https://github.com/allejo/stakx/blob/master/LICENSE.md MIT
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 */
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namespace allejo\stakx\System;
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use Symfony\Component\Finder\SplFileInfo;
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class FileExplorer extends \RecursiveFilterIterator
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{
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    /**
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     * A bitwise flag to have FileExplorer ignore all files unless its been explicitly included; all other files will be
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     * ignored.
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     */
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    const INCLUDE_ONLY_FILES = 0x1;
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    /**
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     * A bitwise flag to have FileExplorer search files starting with a period as well
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     */
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    const ALLOW_DOT_FILES    = 0x2;
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    /**
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     * A list of version control folders to ignore
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     *
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     * @var string[]
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     */
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    public static $vcsPatterns =  array('.git', '.hg', '.svn', '_svn', 'CVS', '_darcs', '.arch-params', '.monotone', '.bzr');
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    /**
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     * A list of phrases to exclude from the search
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     *
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     * @var string[]
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     */
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    private $excludes;
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    /**
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     * A list of phrases to explicitly include in the search
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     *
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     * @var string[]
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     */
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    private $includes;
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    /**
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     * The bitwise sum of the flags applied to this FileExplorer instance
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     *
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     * @var int|null
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     */
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    private $flags;
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    /**
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     * FileExplorer constructor.
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     *
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     * @param \RecursiveIterator $iterator
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     * @param array              $excludes
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     * @param array              $includes
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     * @param int|null           $flags
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     */
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    public function __construct(\RecursiveIterator $iterator, array $excludes = array(), array $includes = array(), $flags = null)
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    {
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        parent::__construct($iterator);
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        $this->excludes = array_merge(self::$vcsPatterns, $excludes);
0 ignored issues
show
Documentation Bug introduced by
It seems like array_merge(self::$vcsPatterns, $excludes) of type array is incompatible with the declared type array<integer,string> of property $excludes.

Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.

Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..

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66 4
        $this->includes = $includes;
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        $this->flags = $flags;
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    }
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    /**
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     * @return string
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     */
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    public function __toString()
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    {
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        return $this->current()->getFilename();
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    }
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    /**
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     * {@inheritdoc}
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     */
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    public function accept ()
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    {
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        $filePath = str_replace(getcwd() . '/', '', $this->current()->getPathname());
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        if ($this->strpos_array($filePath, $this->includes)) { return true; }
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        if ($this->flags & self::INCLUDE_ONLY_FILES) { return false; }
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        if (!($this->flags & self::ALLOW_DOT_FILES) &&
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            preg_match('#(^|/)\..+(/|$)#', $filePath) === 1) { return false; }
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        return ($this->strpos_array($filePath, $this->excludes) === false);
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    }
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    /**
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     * Get the current SplFileInfo object
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     *
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     * @return SplFileInfo
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     */
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    public function current()
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    {
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        /** @var \SplFileInfo $current */
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        $current = parent::current();
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        return (new SplFileInfo(
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            $current->getPathname(),
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            $this->getRelativePath($current->getPath()),
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            $this->getRelativePath($current->getPathname())
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        ));
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    }
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    /**
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     * {@inheritdoc}
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     */
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    public function getChildren()
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    {
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        return (new self(
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            $this->getInnerIterator()->getChildren(),
0 ignored issues
show
Bug introduced by
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\System\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

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. 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.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
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            $this->excludes,
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            $this->includes,
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            $this->flags
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        ));
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    }
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    /**
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     * Get an Iterator with all of the files that have met the search requirements
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     *
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     * @return \RecursiveIteratorIterator
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     */
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    public function getExplorer ()
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    {
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        return (new \RecursiveIteratorIterator($this));
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    }
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    /**
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     * Create an instance of FileExplorer from a directory path as a string
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     *
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     * @param  string   $folder   The path to the folder we're scanning
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     * @param  string[] $excludes
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     * @param  string[] $includes
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     * @param  int|null $flags
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     *
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     * @return FileExplorer
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     */
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    public static function create ($folder, $excludes = array(), $includes = array(), $flags = null)
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    {
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        $iterator = new \RecursiveDirectoryIterator($folder, \RecursiveDirectoryIterator::SKIP_DOTS);
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        return (new self($iterator, $excludes, $includes, $flags));
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    }
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    /**
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     * Search a given string for an array of possible elements
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     *
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     * @param  string   $haystack
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     * @param  string[] $needle
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     * @param  int      $offset
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     *
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     * @return bool True if an element from the given array was found in the string
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     */
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    private function strpos_array ($haystack, $needle, $offset = 0)
0 ignored issues
show
Coding Style introduced by
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.

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161
    {
162 4
        if (!is_array($needle))
163 4
        {
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            $needle = array($needle);
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        }
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        foreach ($needle as $query)
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        {
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            if (strpos($haystack, $query, $offset) !== false) // stop on first true result
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            {
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                return true;
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            }
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        }
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        return false;
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    }
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    /**
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     * Strip the current working directory from an absolute path
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     *
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     * @param  string $path An absolute path
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     *
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     * @return string
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     */
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    private function getRelativePath ($path)
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    {
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        return str_replace(getcwd() . DIRECTORY_SEPARATOR, '', $path);
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    }
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}
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