<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Filesystem;

/**
* Contains logic for finding class filepaths based on include_path configuration.
*/
class FileResolver
{
/**
* Find a file in include path. Include path is set in composer.json or with set_include_path()
*
* @param string $class
* @return string|bool
*/
public function getFile($class)
{
$relativePath = $this->getFilePath($class);
return stream_resolve_include_path($relativePath);
}

/**
* Get relative file path for specified class
*
* @param string $class
* @return string
*/
public function getFilePath($class)
{
return ltrim(str_replace(['_', '\\'], '/', $class), '/') . '.php';
}

/**
* Add specified path(s) to the current include_path
*
* @param string|array $path
* @param bool $prepend Whether to prepend paths or to append them
* @return void
*/
public static function addIncludePath($path, $prepend = true)
{
$includePathExtra = implode(PATH_SEPARATOR, (array)$path);
$includePath = get_include_path();
$pathSeparator = $includePath && $includePathExtra ? PATH_SEPARATOR : '';
if ($prepend) {
$includePath = $includePathExtra . $pathSeparator . $includePath;
} else {
$includePath = $includePath . $pathSeparator . $includePathExtra;
}
set_include_path($includePath);
}
}