Configuration::collectFiles() - Code Metrics - Inspection of "Add recommendations & warnings (#282)" - humbug/box - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( c78585...0e87fa )

by Théo
created 2018-09-21 13:59 UTC
Configuration::collectFiles() A

↳ Parent: Configuration
Complexity

Conditions	5
Paths	4
Size

Total Lines	49
Code Lines	23
Duplication

Lines	0
Ratio	0 %
Importance

Changes
Metric	Value
eloc	23
dl	0
loc	49
rs	9.2408
c	0
b	0
f	0
cc	5
nc	4
nop	10
How to fix Many Parameters

<?php

declare(strict_types=1);

/*
 * This file is part of the box project.
 *
 * (c) Kevin Herrera <[email protected]>
 *     Théo Fidry <[email protected]>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace KevinGH\Box;

use Assert\Assertion;
use Closure;
use DateTimeImmutable;
use DateTimeZone;
use Herrera\Annotations\Tokenizer;
use Herrera\Box\Compactor\Php as LegacyPhp;
use Humbug\PhpScoper\Configuration as PhpScoperConfiguration;
use Humbug\PhpScoper\Console\ApplicationFactory;
use Humbug\PhpScoper\Scoper;
use InvalidArgumentException;
use KevinGH\Box\Compactor\Php;
use KevinGH\Box\Compactor\PhpScoper as PhpScoperCompactor;
use KevinGH\Box\Composer\ComposerConfiguration;
use KevinGH\Box\Json\Json;
use KevinGH\Box\PhpScoper\SimpleScoper;
use Phar;
use RuntimeException;
use Seld\JsonLint\ParsingException;
use SplFileInfo;
use stdClass;
use Symfony\Component\Finder\Finder;
use Symfony\Component\Process\Process;
use const E_USER_DEPRECATED;
use function array_column;
use function array_diff;
use function array_filter;
use function array_key_exists;
use function array_keys;
use function array_map;
use function array_merge;
use function array_unique;
use function constant;
use function defined;
use function dirname;
use function file_exists;
use function in_array;
use function intval;
use function is_array;
use function is_bool;
use function is_file;
use function is_link;
use function is_object;
use function is_readable;
use function is_string;
use function iter\map;
use function iter\toArray;
use function iter\values;
use function KevinGH\Box\FileSystem\canonicalize;
use function KevinGH\Box\FileSystem\file_contents;
use function KevinGH\Box\FileSystem\is_absolute_path;
use function KevinGH\Box\FileSystem\longest_common_base_path;
use function KevinGH\Box\FileSystem\make_path_absolute;
use function KevinGH\Box\FileSystem\make_path_relative;
use function preg_match;
use function sprintf;
use function strtoupper;
use function substr;
use function trigger_error;
use function uniqid;

/**
 * @private
 */
final class Configuration
{
    private const DEFAULT_ALIAS = 'test.phar';
    private const DEFAULT_MAIN_SCRIPT = 'index.php';
    private const DEFAULT_DATETIME_FORMAT = 'Y-m-d H:i:s';
    private const DEFAULT_REPLACEMENT_SIGIL = '@';
    private const DEFAULT_SHEBANG = '#!/usr/bin/env php';
    private const DEFAULT_BANNER = <<<'BANNER'
Generated by Humbug Box.

@link https://github.com/humbug/box
BANNER;
    private const FILES_SETTINGS = [
        'directories',
        'finder',
    ];
    private const PHP_SCOPER_CONFIG = 'scoper.inc.php';
    private const DEFAULT_SIGNING_ALGORITHM = Phar::SHA1;

    private $file;
    private $fileMode;
    private $alias;
    private $basePath;
    private $composerJson;
    private $composerLock;
    private $files;
    private $binaryFiles;
    private $autodiscoveredFiles;
    private $dumpAutoload;
    private $excludeComposerFiles;
    private $compactors;
    private $compressionAlgorithm;
    private $mainScriptPath;
    private $mainScriptContents;
    private $map;
    private $fileMapper;
    private $metadata;
    private $tmpOutputPath;
    private $outputPath;
    private $privateKeyPassphrase;
    private $privateKeyPath;
    private $promptForPrivateKey;
    private $processedReplacements;
    private $shebang;
    private $signingAlgorithm;
    private $stubBannerContents;
    private $stubBannerPath;
    private $stubPath;
    private $isInterceptFileFuncs;
    private $isStubGenerated;
    private $checkRequirements;
    private $warnings;
    private $recommendations;

    public static function create(?string $file, stdClass $raw): self
    {
        $logger = new ConfigurationLogger();

        $alias = self::retrieveAlias($raw);

        $basePath = self::retrieveBasePath($file, $raw);

        $composerFiles = self::retrieveComposerFiles($basePath);

        $mainScriptPath = self::retrieveMainScriptPath($raw, $basePath, $composerFiles[0][1]);
        $mainScriptContents = self::retrieveMainScriptContents($mainScriptPath);

        [$tmpOutputPath, $outputPath] = self::retrieveOutputPath($raw, $basePath, $mainScriptPath);

        $composerJson = $composerFiles[0];
        $composerLock = $composerFiles[1];

        $devPackages = ComposerConfiguration::retrieveDevPackages($basePath, $composerJson[1], $composerLock[1]);

        /**
         * @var string[]
         * @var Closure  $blacklistFilter
         */
        [$excludedPaths, $blacklistFilter] = self::retrieveBlacklistFilter($raw, $basePath, $tmpOutputPath, $outputPath, $mainScriptPath);

        $autodiscoverFiles = self::autodiscoverFiles($file, $raw);
        $forceFilesAutodiscovery = self::retrieveForceFilesAutodiscovery($raw);

        $filesAggregate = self::collectFiles(
            $raw,
            $basePath,
            $mainScriptPath,
            $blacklistFilter,
            $excludedPaths,
            $devPackages,
            $composerFiles,
            $composerJson,
            $autodiscoverFiles,
            $forceFilesAutodiscovery
        );
        $binaryFilesAggregate = self::collectBinaryFiles(
            $raw,
            $basePath,
            $mainScriptPath,
            $blacklistFilter,
            $excludedPaths,
            $devPackages
        );

        $dumpAutoload = self::retrieveDumpAutoload($raw, null !== $composerJson[0], $logger);

        $excludeComposerFiles = self::retrieveExcludeComposerFiles($raw);

        $compactors = self::retrieveCompactors($raw, $basePath);
        $compressionAlgorithm = self::retrieveCompressionAlgorithm($raw);

        $fileMode = self::retrieveFileMode($raw);

        $map = self::retrieveMap($raw);
        $fileMapper = new MapFile($basePath, $map);

        $metadata = self::retrieveMetadata($raw);

        $signingAlgorithm = self::retrieveSigningAlgorithm($raw);
        $promptForPrivateKey = self::retrievePromptForPrivateKey($raw, $signingAlgorithm, $logger);
        $privateKeyPath = self::retrievePrivateKeyPath($raw, $basePath, $signingAlgorithm, $logger);
        $privateKeyPassphrase = self::retrievePrivateKeyPassphrase($raw, $signingAlgorithm, $logger);
class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
$object = $a->getObject();

        $replacements = self::retrieveReplacements($raw, $file, $logger);

        $shebang = self::retrieveShebang($raw);

        $stubBannerContents = self::retrieveStubBannerContents($raw);
        $stubBannerPath = self::retrieveStubBannerPath($raw, $basePath);

        if (null !== $stubBannerPath) {
            $stubBannerContents = file_contents($stubBannerPath);
        }

        $stubBannerContents = self::normalizeStubBannerContents($stubBannerContents);

        $stubPath = self::retrieveStubPath($raw, $basePath);

        $isInterceptFileFuncs = self::retrieveIsInterceptFileFuncs($raw);
        $isStubGenerated = self::retrieveIsStubGenerated($raw, $stubPath);

        $checkRequirements = self::retrieveCheckRequirements(
            $raw,
            null !== $composerJson[0],
            null !== $composerLock[0],
            $logger
        );

        return new self(
            $file,
            $alias,
            $basePath,
            $composerJson,
            $composerLock,
            $filesAggregate,
            $binaryFilesAggregate,
            $autodiscoverFiles || $forceFilesAutodiscovery,
            $dumpAutoload,
            $excludeComposerFiles,
            $compactors,
            $compressionAlgorithm,
            $fileMode,
            $mainScriptPath,
            $mainScriptContents,
            $fileMapper,
            $metadata,
            $tmpOutputPath,
            $outputPath,
            $privateKeyPassphrase,
            $privateKeyPath,
            $promptForPrivateKey,
            $replacements,
            $shebang,
            $signingAlgorithm,
            $stubBannerContents,
            $stubBannerPath,
            $stubPath,
            $isInterceptFileFuncs,
            $isStubGenerated,
            $checkRequirements,
            $logger->getWarnings(),
            $logger->getRecommendations()
        );
    }

    /**
     * @param null|string   $file
     * @param null|string   $alias
     * @param string        $basePath             Utility to private the base path used and be able to retrieve a
     *                                            path relative to it (the base path)
     * @param array         $composerJson         The first element is the path to the `composer.json` file as a
     *                                            string and the second element its decoded contents as an
     *                                            associative array.
     * @param array         $composerLock         The first element is the path to the `composer.lock` file as a
     *                                            string and the second element its decoded contents as an
     *                                            associative array.
     * @param SplFileInfo[] $files                List of files
     * @param SplFileInfo[] $binaryFiles          List of binary files
     * @param bool          $dumpAutoload         Whether or not the Composer autoloader should be dumped
     * @param bool          $excludeComposerFiles Whether or not the Composer files composer.json, composer.lock and
     *                                            installed.json should be removed from the PHAR
     * @param Compactor[]   $compactors           List of file contents compactors
     * @param null|int      $compressionAlgorithm Compression algorithm constant value. See the \Phar class constants
     * @param null|int      $fileMode             File mode in octal form
     * @param string        $mainScriptPath       The main script file path
     * @param string        $mainScriptContents   The processed content of the main script file
     * @param MapFile       $fileMapper           Utility to map the files from outside and inside the PHAR
     * @param mixed         $metadata             The PHAR Metadata
     * @param bool          $promptForPrivateKey  If the user should be prompted for the private key passphrase
     * @param scalar[]      $replacements         The processed list of replacement placeholders and their values
     * @param null|string   $shebang              The shebang line
     * @param int           $signingAlgorithm     The PHAR siging algorithm. See \Phar constants
     * @param null|string   $stubBannerContents   The stub banner comment
     * @param null|string   $stubBannerPath       The path to the stub banner comment file
     * @param null|string   $stubPath             The PHAR stub file path
     * @param bool          $isInterceptFileFuncs Whether or not Phar::interceptFileFuncs() should be used
     * @param bool          $isStubGenerated      Whether or not if the PHAR stub should be generated
     * @param bool          $checkRequirements    Whether the PHAR will check the application requirements before
     *                                            running
     * @param string[]      $warnings
     * @param string[]      $recommendations
     */
    private function __construct(
        ?string $file,
        string $alias,
        string $basePath,
        array $composerJson,
        array $composerLock,
        array $files,
        array $binaryFiles,
        bool $autodiscoveredFiles,
        bool $dumpAutoload,
        bool $excludeComposerFiles,
        array $compactors,
        ?int $compressionAlgorithm,
        ?int $fileMode,
        ?string $mainScriptPath,
        ?string $mainScriptContents,
        MapFile $fileMapper,
        $metadata,
        string $tmpOutputPath,
        string $outputPath,
        ?string $privateKeyPassphrase,
        ?string $privateKeyPath,
        bool $promptForPrivateKey,
        array $replacements,
        ?string $shebang,
        int $signingAlgorithm,
        ?string $stubBannerContents,
        ?string $stubBannerPath,
        ?string $stubPath,
        bool $isInterceptFileFuncs,
        bool $isStubGenerated,
        bool $checkRequirements,
        array $warnings,
        array $recommendations
    ) {
        Assertion::nullOrInArray(
            $compressionAlgorithm,
            get_phar_compression_algorithms(),
            sprintf(
                'Invalid compression algorithm "%%s", use one of "%s" instead.',
                implode('", "', array_keys(get_phar_compression_algorithms()))
            )
        );

        if (null === $mainScriptPath) {
            Assertion::null($mainScriptContents);
        } else {
            Assertion::notNull($mainScriptContents);
        }

        $this->file = $file;
        $this->alias = $alias;
        $this->basePath = $basePath;
        $this->composerJson = $composerJson;
        $this->composerLock = $composerLock;
        $this->files = $files;
        $this->binaryFiles = $binaryFiles;
        $this->autodiscoveredFiles = $autodiscoveredFiles;
        $this->dumpAutoload = $dumpAutoload;
        $this->excludeComposerFiles = $excludeComposerFiles;
        $this->compactors = $compactors;
        $this->compressionAlgorithm = $compressionAlgorithm;
        $this->fileMode = $fileMode;
        $this->mainScriptPath = $mainScriptPath;
        $this->mainScriptContents = $mainScriptContents;
        $this->fileMapper = $fileMapper;
        $this->metadata = $metadata;
        $this->tmpOutputPath = $tmpOutputPath;
        $this->outputPath = $outputPath;
        $this->privateKeyPassphrase = $privateKeyPassphrase;
        $this->privateKeyPath = $privateKeyPath;
        $this->promptForPrivateKey = $promptForPrivateKey;
        $this->processedReplacements = $replacements;
        $this->shebang = $shebang;
        $this->signingAlgorithm = $signingAlgorithm;
        $this->stubBannerContents = $stubBannerContents;
        $this->stubBannerPath = $stubBannerPath;
        $this->stubPath = $stubPath;
        $this->isInterceptFileFuncs = $isInterceptFileFuncs;
        $this->isStubGenerated = $isStubGenerated;
        $this->checkRequirements = $checkRequirements;
        $this->warnings = $warnings;
        $this->recommendations = $recommendations;
    }

    public function getConfigurationFile(): ?string
    {
        return $this->file;
    }

    public function getAlias(): string
    {
        return $this->alias;
    }

    public function getBasePath(): string
    {
        return $this->basePath;
    }

    public function getComposerJson(): ?string
    {
        return $this->composerJson[0];
    }

    public function getDecodedComposerJsonContents(): ?array
    {
        return $this->composerJson[1];
    }

    public function getComposerLock(): ?string
    {
        return $this->composerLock[0];
    }

    public function getDecodedComposerLockContents(): ?array
    {
        return $this->composerLock[1];
    }

    /**
     * @return string[]
     */
    public function getFiles(): array
    {
        return $this->files;
    }

    /**
     * @return string[]
     */
    public function getBinaryFiles(): array
    {
        return $this->binaryFiles;
    }

    public function hasAutodiscoveredFiles(): bool
    {
        return $this->autodiscoveredFiles;
    }

    public function dumpAutoload(): bool
    {
        return $this->dumpAutoload;
    }

    public function excludeComposerFiles(): bool
    {
        return $this->excludeComposerFiles;
    }

    /**
     * @return Compactor[] the list of compactors
     */
    public function getCompactors(): array
    {
        return $this->compactors;
    }

    public function getCompressionAlgorithm(): ?int
    {
        return $this->compressionAlgorithm;
    }

    public function getFileMode(): ?int
    {
        return $this->fileMode;
    }

    public function hasMainScript(): bool
    {
        return null !== $this->mainScriptPath;
    }

    public function getMainScriptPath(): string
    {
        Assertion::notNull(
            $this->mainScriptPath,
            'Cannot retrieve the main script path: no main script configured.'
        );

        return $this->mainScriptPath;
    }

    public function getMainScriptContents(): string
    {
        Assertion::notNull(
            $this->mainScriptPath,
            'Cannot retrieve the main script contents: no main script configured.'
        );

        return $this->mainScriptContents;
    }

    public function checkRequirements(): bool
    {
        return $this->checkRequirements;
    }

    public function getTmpOutputPath(): string
    {
        return $this->tmpOutputPath;
    }

    public function getOutputPath(): string
    {
        return $this->outputPath;
    }

    public function getFileMapper(): MapFile
    {
        return $this->fileMapper;
    }

    /**
     * @return mixed
     */
    public function getMetadata()
    {
        return $this->metadata;
    }

    public function getPrivateKeyPassphrase(): ?string
    {
        return $this->privateKeyPassphrase;
    }

    public function getPrivateKeyPath(): ?string
    {
        return $this->privateKeyPath;
    }

    /**
     * @deprecated Use promptForPrivateKey() instead
     */
    public function isPrivateKeyPrompt(): bool
    {
        return $this->promptForPrivateKey;
    }

    public function promptForPrivateKey(): bool
    {
        return $this->promptForPrivateKey;
    }

    /**
     * @return scalar[]
     */
    public function getReplacements(): array
    {
        return $this->processedReplacements;
    }

    public function getShebang(): ?string
    {
        return $this->shebang;
    }

    public function getSigningAlgorithm(): int
    {
        return $this->signingAlgorithm;
    }

    public function getStubBannerContents(): ?string
    {
        return $this->stubBannerContents;
    }

    public function getStubBannerPath(): ?string
    {
        return $this->stubBannerPath;
    }

    public function getStubPath(): ?string
    {
        return $this->stubPath;
    }

    public function isInterceptFileFuncs(): bool
    {
        return $this->isInterceptFileFuncs;
    }

    public function isStubGenerated(): bool
    {
        return $this->isStubGenerated;
    }

    /**
     * @return string[]
     */
    public function getWarnings(): array
    {
        return $this->warnings;
    }

    /**
     * @return string[]
     */
    public function getRecommendations(): array
    {
        return $this->recommendations;
    }

    private static function retrieveAlias(stdClass $raw): string
    {
        if (false === isset($raw->alias)) {
            return uniqid('box-auto-generated-alias-', false).'.phar';
        }

        $alias = trim($raw->alias);

        Assertion::notEmpty($alias, 'A PHAR alias cannot be empty when provided.');

        return $alias;
    }

    private static function retrieveBasePath(?string $file, stdClass $raw): string
    {
        if (null === $file) {
            return getcwd();
        }

        if (false === isset($raw->{'base-path'})) {
            return realpath(dirname($file));
        }

        $basePath = trim($raw->{'base-path'});

        Assertion::directory(
            $basePath,
            'The base path "%s" is not a directory or does not exist.'
        );

        return realpath($basePath);
    }

    private static function autodiscoverFiles(?string $file, stdClass $raw): bool
    {
        if (null === $file) {
            return true;
        }

        // TODO: config should be casted into an array: it is easier to do and we need an array in several places now
        $rawConfig = (array) $raw;

        return self::FILES_SETTINGS === array_diff(self::FILES_SETTINGS, array_keys($rawConfig));
    }

    private static function retrieveForceFilesAutodiscovery(stdClass $raw): bool
    {
        return $raw->{'auto-discovery'} ?? false;
    }

    private static function retrieveBlacklistFilter(stdClass $raw, string $basePath, ?string ...$excludedPaths): array
    {
        $blacklist = self::retrieveBlacklist($raw, $basePath, ...$excludedPaths);

        $blacklistFilter = function (SplFileInfo $file) use ($blacklist): ?bool {
            if ($file->isLink()) {
                return false;
            }

            if (false === $file->getRealPath()) {
                return false;
            }

            if (in_array($file->getRealPath(), $blacklist, true)) {
                return false;
            }

            return null;
        };

        return [$blacklist, $blacklistFilter];
    }

    /**
     * @param stdClass        $raw
     * @param string          $basePath
     * @param null[]|string[] $excludedPaths
     *
     * @return string[]
     */
    private static function retrieveBlacklist(stdClass $raw, string $basePath, ?string ...$excludedPaths): array
    {
        /** @var string[] $blacklist */
        $blacklist = array_merge(
            array_filter($excludedPaths),
            $raw->blacklist ?? []
        );

        $normalizedBlacklist = [];

        foreach ($blacklist as $file) {
            $normalizedBlacklist[] = self::normalizePath($file, $basePath);
            $normalizedBlacklist[] = canonicalize(make_path_relative(trim($file), $basePath));
        }

        return array_unique($normalizedBlacklist);
    }

    /**
     * @param string[] $excludedPaths
     * @param string[] $devPackages
     *
     * @return SplFileInfo[]
     */
    private static function collectFiles(
        stdClass $raw,
        string $basePath,
        ?string $mainScriptPath,
        Closure $blacklistFilter,
        array $excludedPaths,
        array $devPackages,
        array $composerFiles,
        array $composerJson,
        bool $autodiscoverFiles,
        bool $forceFilesAutodiscovery
    ): array {
        $files = [self::retrieveFiles($raw, 'files', $basePath, $composerFiles, $mainScriptPath)];

        if ($autodiscoverFiles || $forceFilesAutodiscovery) {
            [$filesToAppend, $directories] = self::retrieveAllDirectoriesToInclude(
                $basePath,
                $composerJson[1],
                $devPackages,
                array_filter(
                    array_column($composerFiles, 0)
                ),
                $excludedPaths
            );

            $files[] = $filesToAppend;

            $files[] = self::retrieveAllFiles(
                $basePath,
                $directories,
                $mainScriptPath,
                $blacklistFilter,
                $excludedPaths,
                $devPackages
            );
        }

        if (false === $autodiscoverFiles) {
            $files[] = self::retrieveDirectories($raw, 'directories', $basePath, $blacklistFilter, $excludedPaths);

            $filesFromFinders = self::retrieveFilesFromFinders($raw, 'finder', $basePath, $blacklistFilter, $devPackages);

            foreach ($filesFromFinders as $filesFromFinder) {
                // Avoid an array_merge here as it can be quite expansive at this stage depending of the number of files
                $files[] = $filesFromFinder;
            }
        }

        return self::retrieveFilesAggregate(...$files);
    }

    /**
     * @param string[] $excludedPaths
     * @param string[] $devPackages
     *
     * @return SplFileInfo[]
     */
    private static function collectBinaryFiles(
        stdClass $raw,
        string $basePath,
        ?string $mainScriptPath,
        Closure $blacklistFilter,
        array $excludedPaths,
        array $devPackages
    ): array {
        $binaryFiles = self::retrieveFiles($raw, 'files-bin', $basePath, [], $mainScriptPath);
        $binaryDirectories = self::retrieveDirectories($raw, 'directories-bin', $basePath, $blacklistFilter, $excludedPaths);
        $binaryFilesFromFinders = self::retrieveFilesFromFinders($raw, 'finder-bin', $basePath, $blacklistFilter, $devPackages);

        return self::retrieveFilesAggregate($binaryFiles, $binaryDirectories, ...$binaryFilesFromFinders);
    }

    /**
     * @return SplFileInfo[]
     */
    private static function retrieveFiles(
        stdClass $raw,
        string $key,
        string $basePath,
        array $composerFiles,
        ?string $mainScriptPath
    ): array {
        $files = [];

        if (isset($composerFiles[0][0])) {
            $files[] = $composerFiles[0][0];
        }

        if (isset($composerFiles[1][1])) {
            $files[] = $composerFiles[1][0];
        }

        if (false === isset($raw->{$key})) {
            return $files;
        }

        $files = array_merge((array) $raw->{$key}, $files);

        Assertion::allString($files);

        $normalizePath = function (string $file) use ($basePath, $key, $mainScriptPath): ?SplFileInfo {
            $file = self::normalizePath($file, $basePath);

            if (is_link($file)) {
                // TODO: add this to baberlei/assert
                throw new InvalidArgumentException(
                    sprintf(
                        'Cannot add the link "%s": links are not supported.',
                        $file
                    )
                );
            }

            Assertion::file(
                $file,
                sprintf(
                    '"%s" must contain a list of existing files. Could not find "%%s".',
                    $key
                )
            );

            return $mainScriptPath === $file ? null : new SplFileInfo($file);
        };

        return array_filter(array_map($normalizePath, $files));
    }

    /**
     * @param string   $key           Config property name
     * @param string[] $excludedPaths
     *
     * @return iterable|SplFileInfo[]
     */
    private static function retrieveDirectories(
        stdClass $raw,
        string $key,
        string $basePath,
        Closure $blacklistFilter,
        array $excludedPaths
    ): iterable {
        $directories = self::retrieveDirectoryPaths($raw, $key, $basePath);

        if ([] !== $directories) {
            $finder = Finder::create()
                ->files()
                ->filter($blacklistFilter)
                ->ignoreVCS(true)
                ->in($directories)
            ;

            foreach ($excludedPaths as $excludedPath) {
                $finder->notPath($excludedPath);
            }

            return $finder;
        }

        return [];
    }

    /**
     * @param string[] $devPackages
     *
     * @return iterable[]|SplFileInfo[][]
     */
    private static function retrieveFilesFromFinders(
        stdClass $raw,
        string $key,
        string $basePath,
        Closure $blacklistFilter,
        array $devPackages
    ): array {
        if (isset($raw->{$key})) {
            return self::processFinders($raw->{$key}, $basePath, $blacklistFilter, $devPackages);
        }

        return [];
    }

    /**
     * @param iterable[]|SplFileInfo[][] $fileIterators
     *
     * @return SplFileInfo[]
     */
    private static function retrieveFilesAggregate(iterable ...$fileIterators): array
    {
        $files = [];

        foreach ($fileIterators as $fileIterator) {
            foreach ($fileIterator as $file) {
                $files[(string) $file] = $file;
            }
        }

        return array_values($files);
    }

    /**
     * @param string[] $devPackages
     *
     * @return Finder[]|SplFileInfo[][]
     */
    private static function processFinders(
        array $findersConfig,
        string $basePath,
        Closure $blacklistFilter,
        array $devPackages
    ): array {
        $processFinderConfig = function (stdClass $config) use ($basePath, $blacklistFilter, $devPackages) {
            return self::processFinder($config, $basePath, $blacklistFilter, $devPackages);
        };

        return array_map($processFinderConfig, $findersConfig);
    }

    /**
     * @param string[] $devPackages
     *
     * @return Finder|SplFileInfo[]
     */
    private static function processFinder(
        stdClass $config,
        string $basePath,
        Closure $blacklistFilter,
        array $devPackages
    ): Finder {
        $finder = Finder::create()
            ->files()
            ->filter($blacklistFilter)
            ->filter(
                function (SplFileInfo $fileInfo) use ($devPackages): bool {
                    foreach ($devPackages as $devPackage) {
                        if ($devPackage === longest_common_base_path([$devPackage, $fileInfo->getRealPath()])) {
                            // File belongs to the dev package
                            return false;
                        }
                    }

                    return true;
                }
            )
            ->ignoreVCS(true)
        ;

        $normalizedConfig = (function (array $config, Finder $finder): array {
            $normalizedConfig = [];

            foreach ($config as $method => $arguments) {
                $method = trim($method);
                $arguments = (array) $arguments;

                Assertion::methodExists(
                    $method,
                    $finder,
                    'The method "Finder::%s" does not exist.'
                );

                $normalizedConfig[$method] = $arguments;
            }

            krsort($normalizedConfig);

            return $normalizedConfig;
        })((array) $config, $finder);

        $createNormalizedDirectories = function (string $directory) use ($basePath): ?string {
            $directory = self::normalizePath($directory, $basePath);

            if (is_link($directory)) {
                // TODO: add this to baberlei/assert
                throw new InvalidArgumentException(
                    sprintf(
                        'Cannot append the link "%s" to the Finder: links are not supported.',
                        $directory
                    )
                );
            }

            Assertion::directory($directory);

            return $directory;
        };

        $normalizeFileOrDirectory = function (string &$fileOrDirectory) use ($basePath, $blacklistFilter): void {
            $fileOrDirectory = self::normalizePath($fileOrDirectory, $basePath);

            if (is_link($fileOrDirectory)) {
                // TODO: add this to baberlei/assert
                throw new InvalidArgumentException(
                    sprintf(
                        'Cannot append the link "%s" to the Finder: links are not supported.',
                        $fileOrDirectory
                    )
                );
            }

            // TODO: add this to baberlei/assert
            if (false === file_exists($fileOrDirectory)) {
                throw new InvalidArgumentException(
                    sprintf(
                        'Path "%s" was expected to be a file or directory. It may be a symlink (which are unsupported).',
                        $fileOrDirectory
                    )
                );
            }

            // TODO: add fileExists (as file or directory) to Assert
            if (false === is_file($fileOrDirectory)) {
                Assertion::directory($fileOrDirectory);
            } else {
                Assertion::file($fileOrDirectory);
            }

            if (false === $blacklistFilter(new SplFileInfo($fileOrDirectory))) {
                $fileOrDirectory = null;
            }
        };

        foreach ($normalizedConfig as $method => $arguments) {
            if ('in' === $method) {
                $normalizedConfig[$method] = $arguments = array_map($createNormalizedDirectories, $arguments);
            }

            if ('exclude' === $method) {
                $arguments = array_unique(array_map('trim', $arguments));
            }

            if ('append' === $method) {
                array_walk($arguments, $normalizeFileOrDirectory);

                $arguments = [array_filter($arguments)];
            }

            foreach ($arguments as $argument) {
                $finder->$method($argument);
            }
        }

        return $finder;
    }

    /**
     * @param string[] $devPackages
     * @param string[] $filesToAppend
     *
     * @return string[][]
     */
    private static function retrieveAllDirectoriesToInclude(
        string $basePath,
        ?array $decodedJsonContents,
        array $devPackages,
        array $filesToAppend,
        array $excludedPaths
    ): array {
        $toString = function ($file): string {
            // @param string|SplFileInfo $file
            return (string) $file;
        };

        if (null !== $decodedJsonContents && array_key_exists('vendor-dir', $decodedJsonContents)) {
            $vendorDir = self::normalizePath($decodedJsonContents['vendor-dir'], $basePath);
        } else {
            $vendorDir = self::normalizePath('vendor', $basePath);
        }

        if (file_exists($vendorDir)) {
            // The installed.json file is necessary for dumping the autoload correctly. Note however that it will not exists if no
            // dependencies are included in the `composer.json`
            $installedJsonFiles = self::normalizePath($vendorDir.'/composer/installed.json', $basePath);

            if (file_exists($installedJsonFiles)) {
                $filesToAppend[] = $installedJsonFiles;
            }

            $vendorPackages = toArray(values(map(
                $toString,
                Finder::create()
                    ->in($vendorDir)
                    ->directories()
                    ->depth(1)
                    ->ignoreUnreadableDirs()
                    ->filter(
                        function (SplFileInfo $fileInfo): ?bool {
                            if ($fileInfo->isLink()) {
                                return false;
                            }

                            return null;
                        }
                    )
            )));

            $vendorPackages = array_diff($vendorPackages, $devPackages);

            if (null === $decodedJsonContents || false === array_key_exists('autoload', $decodedJsonContents)) {
                $files = toArray(values(map(
                    $toString,
                    Finder::create()
                        ->in($basePath)
                        ->files()
                        ->depth(0)
                )));

                $directories = toArray(values(map(
                    $toString,
                    Finder::create()
                        ->in($basePath)
                        ->notPath('vendor')
                        ->directories()
                        ->depth(0)
                )));

                return [
                    array_merge($files, $filesToAppend),
                    array_merge($directories, $vendorPackages),
                ];
            }

            $paths = $vendorPackages;
        } else {
            $paths = [];
        }

        $autoload = $decodedJsonContents['autoload'] ?? [];

        if (array_key_exists('psr-4', $autoload)) {
            foreach ($autoload['psr-4'] as $path) {
                /** @var string|string[] $path */
                $composerPaths = (array) $path;

                foreach ($composerPaths as $composerPath) {
                    $paths[] = '' !== trim($composerPath) ? $composerPath : $basePath;
                }
            }
        }

        if (array_key_exists('psr-0', $autoload)) {
            foreach ($autoload['psr-0'] as $path) {
                /** @var string|string[] $path */
                $composerPaths = (array) $path;

                foreach ($composerPaths as $composerPath) {
                    if ('' !== trim($composerPath)) {
                        $paths[] = $composerPath;
                    }
                }
            }
        }

        if (array_key_exists('classmap', $autoload)) {
            foreach ($autoload['classmap'] as $path) {
                // @var string $path
                $paths[] = $path;
            }
        }

        $normalizePath = function (string $path) use ($basePath): string {
            return is_absolute_path($path)
                ? canonicalize($path)
                : self::normalizePath(trim($path, '/ '), $basePath)
            ;
        };

        if (array_key_exists('files', $autoload)) {
            foreach ($autoload['files'] as $path) {
                // @var string $path
                $path = $normalizePath($path);

                Assertion::file($path);
                Assertion::false(is_link($path), 'Cannot add the link "'.$path.'": links are not supported.');

                $filesToAppend[] = $path;
            }
        }

        $files = $filesToAppend;
        $directories = [];

        foreach ($paths as $path) {
            $path = $normalizePath($path);

            Assertion::true(file_exists($path), 'File or directory "'.$path.'" was expected to exist.');
            Assertion::false(is_link($path), 'Cannot add the link "'.$path.'": links are not supported.');

            if (is_file($path)) {
                $files[] = $path;
            } else {
                $directories[] = $path;
            }
        }

        [$files, $directories] = [
            array_unique($files),
            array_unique($directories),
        ];

        return [
            array_diff($files, $excludedPaths),
            array_diff($directories, $excludedPaths),
        ];
    }

    /**
     * @param string[] $files
     * @param string[] $directories
     * @param string[] $excludedPaths
     * @param string[] $devPackages
     *
     * @return SplFileInfo[]
     */
    private static function retrieveAllFiles(
        string $basePath,
        array $directories,
        ?string $mainScriptPath,
        Closure $blacklistFilter,
        array $excludedPaths,
        array $devPackages
    ): iterable {
        if ([] === $directories) {
            return [];
        }

        $relativeDevPackages = array_map(
            function (string $packagePath) use ($basePath): string {
                return make_path_relative($packagePath, $basePath);
            },
            $devPackages
        );

        $finder = Finder::create()
            ->files()
            ->filter($blacklistFilter)
            ->exclude($relativeDevPackages)
            ->ignoreVCS(true)
            ->ignoreDotFiles(true)
            // Remove build files
            ->notName('composer.json')
            ->notName('composer.lock')
            ->notName('Makefile')
            ->notName('Vagrantfile')
            ->notName('phpstan*.neon*')
            ->notName('infection*.json*')
            ->notName('humbug*.json*')
            ->notName('easy-coding-standard.neon*')
            ->notName('phpbench.json*')
            ->notName('phpcs.xml*')
            ->notName('psalm.xml*')
            ->notName('scoper.inc*')
            ->notName('box*.json*')
            ->notName('phpdoc*.xml*')
            ->notName('codecov.yml*')
            ->notName('Dockerfile')
            ->exclude('build')
            ->exclude('dist')
            ->exclude('example')
            ->exclude('examples')
            // Remove documentation
            ->notName('*.md')
            ->notName('*.rst')
            ->notName('/^readme(\..*+)?$/i')
            ->notName('/^upgrade(\..*+)?$/i')
            ->notName('/^contributing(\..*+)?$/i')
            ->notName('/^changelog(\..*+)?$/i')
            ->notName('/^authors?(\..*+)?$/i')
            ->notName('/^conduct(\..*+)?$/i')
            ->notName('/^todo(\..*+)?$/i')
            ->exclude('doc')
            ->exclude('docs')
            ->exclude('documentation')
            // Remove backup files
            ->notName('*~')
            ->notName('*.back')
            ->notName('*.swp')
            // Remove tests
            ->notName('*Test.php')
            ->exclude('test')
            ->exclude('Test')
            ->exclude('tests')
            ->exclude('Tests')
            ->notName('/phpunit.*\.xml(.dist)?/')
            ->notName('/behat.*\.yml(.dist)?/')
            ->exclude('spec')
            ->exclude('specs')
            ->exclude('features')
            // Remove CI config
            ->exclude('travis')
            ->notName('travis.yml')
            ->notName('appveyor.yml')
            ->notName('build.xml*')
        ;

        if (null !== $mainScriptPath) {
            $finder->notPath(make_path_relative($mainScriptPath, $basePath));
        }

        $finder->in($directories);

        $excludedPaths = array_unique(
            array_filter(
                array_map(
                    function (string $path) use ($basePath): string {
                        return make_path_relative($path, $basePath);
                    },
                    $excludedPaths
                ),
                function (string $path): bool {
                    return '..' !== substr($path, 0, 2);
                }
            )
        );

        foreach ($excludedPaths as $excludedPath) {
            $finder->notPath($excludedPath);
        }

        return $finder;

    }

    /**
     * @param stdClass $raw
     * @param string   $key      Config property name
     * @param string   $basePath
     *
     * @return string[]
     */
    private static function retrieveDirectoryPaths(stdClass $raw, string $key, string $basePath): array
    {
        if (false === isset($raw->{$key})) {
            return [];
        }

        $directories = $raw->{$key};

        $normalizeDirectory = function (string $directory) use ($basePath, $key): string {
            $directory = self::normalizePath($directory, $basePath);

            if (is_link($directory)) {
                // TODO: add this to baberlei/assert
                throw new InvalidArgumentException(
                    sprintf(
                        'Cannot add the link "%s": links are not supported.',
                        $directory
                    )
                );
            }

            Assertion::directory(
                $directory,
                sprintf(
                    '"%s" must contain a list of existing directories. Could not find "%%s".',
                    $key
                )
            );

            return $directory;
        };

        return array_map($normalizeDirectory, $directories);
    }

    private static function normalizePath(string $file, string $basePath): string
    {
        return make_path_absolute(trim($file), $basePath);
    }

    private static function retrieveDumpAutoload(stdClass $raw, bool $composerJson, ConfigurationLogger $logger): bool
    {
        $raw = (array) $raw;

        if (false === array_key_exists('dump-autoload', $raw)) {
            return $composerJson;
        }

        $dumpAutoload = $raw['dump-autoload'];

        if ($dumpAutoload) {
            $logger->addRecommendation(
                'The "dump-autoload" setting has been set but is unnecessary since its value is the default value.'
            );
        }

        if (false === $composerJson && $dumpAutoload) {
            $logger->addWarning(
                'The "dump-autoload" setting has been set but has been ignored because the composer.json file necessary'
                .' for it could not be found'
            );

            return false;
        }

        return $composerJson && false !== $dumpAutoload;
    }

    private static function retrieveExcludeComposerFiles(stdClass $raw): bool
    {
        return $raw->{'exclude-composer-files'} ?? true;
    }

    /**
     * @return Compactor[]
     */
    private static function retrieveCompactors(stdClass $raw, string $basePath): array
    {
        if (false === isset($raw->compactors)) {
            return [];
        }

        $compactorClasses = array_unique((array) $raw->compactors);

        return array_map(
            function (string $class) use ($raw, $basePath): Compactor {
                Assertion::classExists($class, 'The compactor class "%s" does not exist.');
                Assertion::implementsInterface($class, Compactor::class, 'The class "%s" is not a compactor class.');

                if (Php::class === $class || LegacyPhp::class === $class) {
                    return self::createPhpCompactor($raw);
                }

                if (PhpScoperCompactor::class === $class) {
                    $phpScoperConfig = self::retrievePhpScoperConfig($raw, $basePath);

                    $prefix = null === $phpScoperConfig->getPrefix()
                        ? uniqid('_HumbugBox', false)
                        : $phpScoperConfig->getPrefix()
                    ;

                    return new PhpScoperCompactor(
                        new SimpleScoper(
                            (new class() extends ApplicationFactory {
                                public static function createScoper(): Scoper
                                {
                                    return parent::createScoper();
                                }
                            })::createScoper(),
                            $prefix,
                            $phpScoperConfig->getWhitelist(),
                            $phpScoperConfig->getPatchers()
                        )
                    );
                }

                return new $class();
            },
            $compactorClasses
        );
    }

    private static function retrieveCompressionAlgorithm(stdClass $raw): ?int
    {
        if (false === isset($raw->compression)) {
            return null;
        }

        $knownAlgorithmNames = array_keys(get_phar_compression_algorithms());

        Assertion::inArray(
            $raw->compression,
            $knownAlgorithmNames,
            sprintf(
                'Invalid compression algorithm "%%s", use one of "%s" instead.',
                implode('", "', $knownAlgorithmNames)
            )
        );

        $value = get_phar_compression_algorithms()[$raw->compression];

        // Phar::NONE is not valid for compressFiles()
        if (Phar::NONE === $value) {
            return null;
        }

        return $value;
    }

    private static function retrieveFileMode(stdClass $raw): ?int
    {
        if (isset($raw->chmod)) {
            return intval($raw->chmod, 8);
        }

        return intval(0755, 8);
    }

    private static function retrieveMainScriptPath(stdClass $raw, string $basePath, ?array $decodedJsonContents): ?string
    {
        if (isset($raw->main)) {
            $main = $raw->main;
        } else {
            if (null === $decodedJsonContents
                || false === array_key_exists('bin', $decodedJsonContents)
                || false === $main = current((array) $decodedJsonContents['bin'])
            ) {
                $main = self::DEFAULT_MAIN_SCRIPT;
            }
        }

        if (is_bool($main)) {
            Assertion::false(
                $main,
                'Cannot "enable" a main script: either disable it with `false` or give the main script file path.'
            );

            return null;
        }

        return self::normalizePath($main, $basePath);
    }

    private static function retrieveMainScriptContents(?string $mainScriptPath): ?string
    {
        if (null === $mainScriptPath) {
            return null;
        }

        $contents = file_contents($mainScriptPath);

        // Remove the shebang line: the shebang line in a PHAR should be located in the stub file which is the real
        // PHAR entry point file.
        return preg_replace('/^#!.*\s*/', '', $contents);
    }

    /**
     * @return string|null[][]
     */
    private static function retrieveComposerFiles(string $basePath): array
    {
        $retrieveFileAndContents = function (string $file): array {
            $json = new Json();

            if (false === file_exists($file) || false === is_file($file) || false === is_readable($file)) {
                return [null, null];
            }

            try {
                $contents = $json->decodeFile($file, true);
            } catch (ParsingException $exception) {
                throw new InvalidArgumentException(
                    sprintf(
                        'Expected the file "%s" to be a valid composer.json file but an error has been found: %s',
                        $file,
                        $exception->getMessage()
                    ),
                    0,
                    $exception
                );
            }

            return [$file, $contents];
        };

        [$composerJson, $composerJsonContents] = $retrieveFileAndContents(canonicalize($basePath.'/composer.json'));
        [$composerLock, $composerLockContents] = $retrieveFileAndContents(canonicalize($basePath.'/composer.lock'));

        return [
            [$composerJson, $composerJsonContents],
            [$composerLock, $composerLockContents],
        ];
    }

    /**
     * @return string[][]
     */
    private static function retrieveMap(stdClass $raw): array
    {
        if (false === isset($raw->map)) {
            return [];
        }

        $map = [];

        foreach ((array) $raw->map as $item) {
            $processed = [];

            foreach ($item as $match => $replace) {
                $processed[canonicalize(trim($match))] = canonicalize(trim($replace));
            }

            if (isset($processed['_empty_'])) {
                $processed[''] = $processed['_empty_'];

                unset($processed['_empty_']);
            }

            $map[] = $processed;
        }

        return $map;
    }

    /**
     * @return mixed
     */
    private static function retrieveMetadata(stdClass $raw)
    {
        if (isset($raw->metadata)) {
            if (is_object($raw->metadata)) {
                return (array) $raw->metadata;
            }

            return $raw->metadata;
        }

        return null;
    }

    /**
     * @return string[] The first element is the temporary output path and the second the real one
     */
    private static function retrieveOutputPath(stdClass $raw, string $basePath, ?string $mainScriptPath): array
    {
        if (isset($raw->output)) {
            $path = $raw->output;
        } else {
            if (null !== $mainScriptPath
                && 1 === preg_match('/^(?<main>.*?)(?:\.[\p{L}\d]+)?$/', $mainScriptPath, $matches)
            ) {
                $path = $matches['main'].'.phar';
            } else {
                // Last resort, should not happen
                $path = self::DEFAULT_ALIAS;
            }
        }

        $tmp = $real = self::normalizePath($path, $basePath);

        if ('.phar' !== substr($real, -5)) {
            $tmp .= '.phar';
        }

        return [$tmp, $real];
    }

    private static function retrievePrivateKeyPath(
        stdClass $raw,
        string $basePath,
        int $signingAlgorithm,
        ConfigurationLogger $logger
    ): ?string {
        $raw = (array) $raw;

        if (array_key_exists('key', $raw) && Phar::OPENSSL !== $signingAlgorithm) {
            if (null === $raw['key']) {
                $logger->addRecommendation(
                    'The setting "key" has been set but is unnecessary since the signing algorithm is not "OPENSSL".'
                );
            } else {
                $logger->addWarning(
                    'The setting "key" has been set but is ignored since the signing algorithm is not "OPENSSL".'
                );
            }

            return null;
        }

        if (!isset($raw['key'])) {
            Assertion::true(
                Phar::OPENSSL !== $signingAlgorithm,
                'Expected to have a private key for OpenSSL signing but none have been provided.'
            );

            return null;
        }

        $path = self::normalizePath($raw['key'], $basePath);

        Assertion::file($path);

        return $path;
    }

    private static function retrievePrivateKeyPassphrase(
        stdClass $raw,
        int $algorithm,
        ConfigurationLogger $logger
    ): ?string {
        $raw = (array) $raw;

        if (array_key_exists('key-pass', $raw) && Phar::OPENSSL !== $algorithm) {
            if (false === $raw['key-pass'] || null === $raw['key-pass']) {
                $logger->addRecommendation(
                    'The setting "key-pass" has been set but is unnecessary since the signing algorithm is not '
                    .'"OPENSSL".'
                );
            } else {
                $logger->addWarning(
                    'The setting "key-pass" has been set but ignored the signing algorithm is not "OPENSSL".'
                );
            }

            return null;
        }

        return null;
    }

    /**
     * @return scalar[]
     */
    private static function retrieveReplacements(stdClass $raw, ?string $file, ConfigurationLogger $logger): array
    {
        if (null === $file) {
            return [];
        }

        $replacements = isset($raw->replacements) ? (array) $raw->replacements : [];

        if (null !== ($git = self::retrievePrettyGitPlaceholder($raw))) {
            $replacements[$git] = self::retrievePrettyGitTag($file);
        }

        if (null !== ($git = self::retrieveGitHashPlaceholder($raw))) {
            $replacements[$git] = self::retrieveGitHash($file);
        }

        if (null !== ($git = self::retrieveGitShortHashPlaceholder($raw))) {
            $replacements[$git] = self::retrieveGitHash($file, true);
        }

        if (null !== ($git = self::retrieveGitTagPlaceholder($raw))) {
            $replacements[$git] = self::retrieveGitTag($file);
        }

        if (null !== ($git = self::retrieveGitVersionPlaceholder($raw))) {
            $replacements[$git] = self::retrieveGitVersion($file);
        }

        $datetimeFormat = self::retrieveDatetimeFormat($raw, $logger);

        if (null !== ($date = self::retrieveDatetimeNowPlaceHolder($raw))) {
            $replacements[$date] = self::retrieveDatetimeNow(
                $datetimeFormat
            );
        }

        $sigil = self::retrieveReplacementSigil($raw);

        foreach ($replacements as $key => $value) {
            unset($replacements[$key]);
            $replacements[$sigil.$key.$sigil] = $value;
        }

        return $replacements;
    }

    private static function retrievePrettyGitPlaceholder(stdClass $raw): ?string
    {
        return isset($raw->{'git'}) ? $raw->{'git'} : null;
    }

    private static function retrieveGitHashPlaceholder(stdClass $raw): ?string
    {
        return isset($raw->{'git-commit'}) ? $raw->{'git-commit'} : null;
    }

    /**
     * @param string $file
     * @param bool   $short Use the short version
     *
     * @return string the commit hash
     */
    private static function retrieveGitHash(string $file, bool $short = false): string
    {
        return self::runGitCommand(
            sprintf(
                'git log --pretty="%s" -n1 HEAD',
                $short ? '%h' : '%H'
            ),
            $file
        );
    }

    private static function retrieveGitShortHashPlaceholder(stdClass $raw): ?string
    {
        return isset($raw->{'git-commit-short'}) ? $raw->{'git-commit-short'} : null;
    }

    private static function retrieveGitTagPlaceholder(stdClass $raw): ?string
    {
        return isset($raw->{'git-tag'}) ? $raw->{'git-tag'} : null;
    }

    private static function retrieveGitTag(string $file): string
    {
        return self::runGitCommand('git describe --tags HEAD', $file);
    }

    private static function retrievePrettyGitTag(string $file): string
    {
        $version = self::retrieveGitTag($file);

        if (preg_match('/^(?<tag>.+)-\d+-g(?<hash>[a-f0-9]{7})$/', $version, $matches)) {
            return sprintf('%s@%s', $matches['tag'], $matches['hash']);
        }

        return $version;
    }

    private static function retrieveGitVersionPlaceholder(stdClass $raw): ?string
    {
        return isset($raw->{'git-version'}) ? $raw->{'git-version'} : null;
    }

    private static function retrieveGitVersion(string $file): ?string
    {
        try {
            return self::retrieveGitTag($file);
        } catch (RuntimeException $exception) {
            try {
                return self::retrieveGitHash($file, true);
            } catch (RuntimeException $exception) {
                throw new RuntimeException(
                    sprintf(
                        'The tag or commit hash could not be retrieved from "%s": %s',
                        dirname($file),
                        $exception->getMessage()
                    ),
                    0,
                    $exception
                );
            }
        }
    }

    private static function retrieveDatetimeNowPlaceHolder(stdClass $raw): ?string
    {
        return isset($raw->{'datetime'}) ? $raw->{'datetime'} : null;
    }

    private static function retrieveDatetimeNow(string $format): string
    {
        $now = new DateTimeImmutable('now', new DateTimeZone('UTC'));

        return $now->format($format);
    }

    private static function retrieveDatetimeFormat(stdClass $raw, ConfigurationLogger $logger): string
    {
        if (isset($raw->{'datetime-format'})) {
            $format = $raw->{'datetime-format'};
        } elseif (isset($raw->{'datetime_format'})) {
            @trigger_error(
                'The setting "datetime_format" is deprecated, use "datetime-format" instead.',
                E_USER_DEPRECATED
            );
            $logger->addWarning('The setting "datetime_format" is deprecated, use "datetime-format" instead.');

            $format = $raw->{'datetime_format'};
        }

        if (isset($format)) {
            $formattedDate = (new DateTimeImmutable())->format($format);

            Assertion::false(
                false === $formattedDate || $formattedDate === $format,
                sprintf(
                    'Expected the datetime format to be a valid format: "%s" is not',
                    $format
                )
            );

            return $format;
        }

        return self::DEFAULT_DATETIME_FORMAT;
    }

    private static function retrieveReplacementSigil(stdClass $raw): string
    {
        return isset($raw->{'replacement-sigil'}) ? $raw->{'replacement-sigil'} : self::DEFAULT_REPLACEMENT_SIGIL;
    }

    private static function retrieveShebang(stdClass $raw): ?string
    {
        if (false === array_key_exists('shebang', (array) $raw)) {
            return self::DEFAULT_SHEBANG;
        }

        $shebang = $raw->shebang;

        if (false === $shebang) {
            return null;
        }

        if (null === $shebang) {
            $shebang = self::DEFAULT_SHEBANG;
        }

        Assertion::string($shebang, 'Expected shebang to be either a string, false or null, found true');

        $shebang = trim($shebang);

        Assertion::notEmpty($shebang, 'The shebang should not be empty.');
        Assertion::true(
            '#!' === substr($shebang, 0, 2),
            sprintf(
                'The shebang line must start with "#!". Got "%s" instead',
                $shebang
            )
        );

        return $shebang;
    }

    private static function retrieveSigningAlgorithm(stdClass $raw): int
    {
        if (false === isset($raw->algorithm)) {
            return self::DEFAULT_SIGNING_ALGORITHM;
        }

        $algorithm = strtoupper($raw->algorithm);

        Assertion::inArray($algorithm, array_keys(get_phar_signing_algorithms()));

        Assertion::true(
            defined('Phar::'.$algorithm),
            sprintf(
                'The signing algorithm "%s" is not supported by your current PHAR version.',
                $algorithm
            )
        );

        return constant('Phar::'.$algorithm);
    }

    private static function retrieveStubBannerContents(stdClass $raw): ?string
    {
        if (false === array_key_exists('banner', (array) $raw) || null === $raw->banner) {
            return self::DEFAULT_BANNER;
        }

        $banner = $raw->banner;

        if (false === $banner) {
            return null;
        }

        Assertion::true(is_string($banner) || is_array($banner), 'The banner cannot accept true as a value');

        if (is_array($banner)) {
            $banner = implode("\n", $banner);
        }

        return $banner;
    }

    private static function retrieveStubBannerPath(stdClass $raw, string $basePath): ?string
    {
        if (false === isset($raw->{'banner-file'})) {
            return null;
        }

        $bannerFile = make_path_absolute($raw->{'banner-file'}, $basePath);

        Assertion::file($bannerFile);

        return $bannerFile;
    }

    private static function normalizeStubBannerContents(?string $contents): ?string
    {
        if (null === $contents) {
            return null;
        }

        $banner = explode("\n", $contents);
        $banner = array_map('trim', $banner);

        return implode("\n", $banner);
    }

    private static function retrieveStubPath(stdClass $raw, string $basePath): ?string
    {
        if (isset($raw->stub) && is_string($raw->stub)) {
            $stubPath = make_path_absolute($raw->stub, $basePath);

            Assertion::file($stubPath);

            return $stubPath;
        }

        return null;
    }

    private static function retrieveIsInterceptFileFuncs(stdClass $raw): bool
    {
        if (isset($raw->intercept)) {
            return $raw->intercept;
        }

        return false;
    }

    private static function retrievePromptForPrivateKey(
        stdClass $raw,
        int $signingAlgorithm,
        ConfigurationLogger $logger
    ): bool {
        if (isset($raw->{'key-pass'}) && true === $raw->{'key-pass'}) {
            if (Phar::OPENSSL !== $signingAlgorithm) {
                $logger->addWarning(
                    'A prompt for password for the private key has been requested but ignored since the signing '
                    .'algorithm used is not "OPENSSL.'
                );

                return false;
            }

            return true;
        }

        return false;
    }

    private static function retrieveIsStubGenerated(stdClass $raw, ?string $stubPath): bool
    {
        return null === $stubPath && (false === isset($raw->stub) || false !== $raw->stub);
    }

    private static function retrieveCheckRequirements(
        stdClass $raw,
        bool $hasComposerJson,
        bool $hasComposerLock,
        ConfigurationLogger $logger
    ): bool {
        $raw = (array) $raw;

        if (false === array_key_exists('check-requirements', $raw)) {
            return $hasComposerJson || $hasComposerLock;
        }

        /** @var null|bool $checkRequirements */
        $checkRequirements = $raw['check-requirements'];

        if ($checkRequirements) {
            $logger->addRecommendation(
                'The "check-requirements" setting has been set but is unnecessary since its value is the default value'
            );
        }

        if (null === $checkRequirements) {
            $checkRequirements = true;
        }

        if ($checkRequirements && false === $hasComposerJson && false === $hasComposerLock) {
            $logger->addWarning(
                'The requirement checker could not be used because the composer.json and composer.lock file could not '
                .'be found.'
            );

            return false;
        }

        return $checkRequirements;
    }

    private static function retrievePhpScoperConfig(stdClass $raw, string $basePath): PhpScoperConfiguration
    {
        if (!isset($raw->{'php-scoper'})) {
            $configFilePath = make_path_absolute(self::PHP_SCOPER_CONFIG, $basePath);

            return file_exists($configFilePath)
                ? PhpScoperConfiguration::load($configFilePath)
                : PhpScoperConfiguration::load()
             ;
        }

        $configFile = $raw->{'php-scoper'};

        Assertion::string($configFile);

        $configFilePath = make_path_absolute($configFile, $basePath);

        Assertion::file($configFilePath);
        Assertion::readable($configFilePath);

        return PhpScoperConfiguration::load($configFilePath);
    }

    /**
     * Runs a Git command on the repository.
     *
     * @param string $command the command
     *
     * @return string the trimmed output from the command
     */
    private static function runGitCommand(string $command, string $file): string
    {
        $path = dirname($file);

        $process = new Process($command, $path);

        if (0 === $process->run()) {
            return trim($process->getOutput());
        }

        throw new RuntimeException(
            sprintf(
                'The tag or commit hash could not be retrieved from "%s": %s',
                $path,
                $process->getErrorOutput()
            )
        );
    }

    private static function createPhpCompactor(stdClass $raw): Compactor
    {
        // TODO: false === not set; check & add test/doc
        $tokenizer = new Tokenizer();

        if (false === empty($raw->annotations) && isset($raw->annotations->ignore)) {
            $tokenizer->ignore(
                (array) $raw->annotations->ignore
            );
        }

        return new Php($tokenizer);
    }
}

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Configuration::collectFiles() A

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