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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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declare(strict_types=1);
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namespace Dotenv\Store\File;
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use Dotenv\Exception\InvalidEncodingException;
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use Dotenv\Util\Str;
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use PhpOption\Option;
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/**
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 * @internal
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 */
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final class Reader
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{
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    /**
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     * This class is a singleton.
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     *
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     * @codeCoverageIgnore
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     *
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     * @return void
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     */
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    private function __construct()
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    {
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        //
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    }
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    /**
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     * Read the file(s), and return their raw content.
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     *
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     * We provide the file path as the key, and its content as the value. If
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     * short circuit mode is enabled, then the returned array with have length
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     * at most one. File paths that couldn't be read are omitted entirely.
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     *
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     * @param string[]    $filePaths
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     * @param bool        $shortCircuit
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     * @param string|null $fileEncoding
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     *
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     * @throws \Dotenv\Exception\InvalidEncodingException
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     *
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     * @return array<string,string>
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     */
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    public static function read(array $filePaths, bool $shortCircuit = true, string $fileEncoding = null)
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    {
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        $output = [];
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        foreach ($filePaths as $filePath) {
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            $content = self::readFromFile($filePath, $fileEncoding);
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            if ($content->isDefined()) {
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                $output[$filePath] = $content->get();
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                if ($shortCircuit) {
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                    break;
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                }
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            }
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        }
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        return $output;
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    }
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    /**
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     * Read the given file.
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     *
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     * @param string      $path
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     * @param string|null $encoding
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     *
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     * @throws \Dotenv\Exception\InvalidEncodingException
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     *
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     * @return \PhpOption\Option<string>
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     */
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    private static function readFromFile(string $path, string $encoding = null)
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    {
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        /** @var Option<string> */
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        $content = Option::fromValue(@\file_get_contents($path), false);
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        return $content->flatMap(static function (string $content) use ($encoding) {
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            return Str::utf8($content, $encoding)->mapError(static function (string $error) {
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                throw new InvalidEncodingException($error);
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            })->success();
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        });
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    }
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}