Completed
Push — master ( b45d24...df18f1 )
by Sebastian
02:26
created

Util::getRelativePath()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 6
Code Lines 4

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 5
CRAP Score 1

Importance

Changes 0
Metric Value
eloc 4
dl 0
loc 6
ccs 5
cts 5
cp 1
rs 10
c 0
b 0
f 0
cc 1
nc 1
nop 2
crap 1
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<?php
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/**
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 * This file is part of CaptainHook.
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 *
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 * (c) Sebastian Feldmann <[email protected]>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace CaptainHook\App\Storage;
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/**
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 * Util class
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 *
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 * @package CaptainHook
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 * @author  Sebastian Feldmann <[email protected]>
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 * @link    https://github.com/captainhookphp/captainhook
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 * @since   Class available since Release 1.0.4
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 */
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abstract class Util
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{
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    /**
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     * Array representation of a path.
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     *
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     * @param  string $path
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     * @return array
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     */
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    public static function pathToArray(string $path) : array
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    {
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        return explode(DIRECTORY_SEPARATOR, ltrim($path, DIRECTORY_SEPARATOR));
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    }
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    /**
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     * Convert array to path
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     *
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     * @param  array $path
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     * @param  bool  $absolute
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     * @return string
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     */
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    public static function arrayToPath(array $path, bool $absolute = false) : string
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    {
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        return ( $absolute ? DIRECTORY_SEPARATOR : '' ) . implode(DIRECTORY_SEPARATOR, $path);
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    }
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    /**
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     * Is the given subDir a sub directory of given parentDir.
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     *
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     * @param  array $subDir
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     * @param  array $parentDir
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     * @return bool
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     */
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    public static function isSubDirectoryOf(array $subDir, array $parentDir) : bool
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    {
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        foreach ($parentDir as $index => $dir) {
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            if (!isset($subDir[$index]) || $dir !== $subDir[$index]) {
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                return false;
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            }
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        }
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        return true;
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    }
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    /**
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     * Return the relative path from parentDir to subDir.
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     *
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     * @param  array $subDir
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     * @param  array $parentDir
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     * @return array
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     */
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    public static function getSubPathOf(array $subDir, array $parentDir) : array
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    {
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        if (!self::isSubDirectoryOf($subDir, $parentDir)) {
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            throw new \RuntimeException(
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                'Invalid sub directory: '
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                . implode('/', $subDir)
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                . ' is not a sub directory of '
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                . implode('/', $parentDir)
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            );
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        }
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        $path = [];
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        foreach (array_slice($subDir, count($parentDir)) as $dir) {
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            $path[] = $dir;
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        }
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        return $path;
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    }
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    /**
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     * Transforms an absolute path to a relative one
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     *
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     * @param  string $subPath     Absolute path to sub directory
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     * @param  string $parentPath  Absolute path to parent directory
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     * @return string
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     */
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    public static function getRelativePath(string $subPath, string $parentPath): string
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    {
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        return Util::arrayToPath(
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            Util::getSubPathOf(
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                Util::pathToArray($subPath),
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                Util::pathToArray($parentPath)
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            )
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        );
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    }
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    /**
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     * Return the path to the target path from inside the .git/hooks directory f.e. __DIR__ ../../vendor
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     *
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     * @param  string $repoDir
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     * @param  string $targetPath
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     * @return string
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     * @throws \RuntimeException
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     */
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    public static function getTplTargetPath(string $repoDir, string $targetPath) : string
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    {
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        $repo   = self::pathToArray($repoDir);
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        $target = self::pathToArray($targetPath);
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        if (!self::isSubDirectoryOf($target, $repo)) {
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            return '\'/' . implode('/', $target);
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        }
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        return '__DIR__ . \'/../../' . implode('/', self::getSubPathOf($target, $repo));
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    }
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}
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