Ajout des vendor

vendor/symfony/flex/.php-cs-fixer.dist.php

@@ -0,0 +1,18 @@
+<?php
+
+$finder = PhpCsFixer\Finder::create()->in(__DIR__);
+
+return (new PhpCsFixer\Config())
+    ->setFinder($finder)
+    ->setRules(array(
+        '@Symfony' => true,
+        '@Symfony:risky' => true,
+        'fopen_flags' => false,
+        '@PHPUnit48Migration:risky' => true,
+        'array_syntax' => ['syntax' => 'short'],
+        'ordered_imports' => true,
+        'php_unit_no_expectation_annotation' => false, // part of `PHPUnitXYMigration:risky` ruleset, to be enabled when PHPUnit 4.x support will be dropped, as we don't want to rewrite exceptions handling twice
+        'protected_to_private' => false,
+    ))
+    ->setRiskyAllowed(true)
+;

vendor/symfony/flex/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2016-2019 Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/symfony/flex/README.md

@@ -0,0 +1,10 @@
+<p align="center"><a href="https://symfony.com" target="_blank">
+    <img src="https://symfony.com/logos/symfony_black_02.svg">
+</a></p>
+
+[Symfony Flex][1] helps developers create [Symfony][2] applications, from the most
+simple micro-style projects to the more complex ones with dozens of
+dependencies.
+
+[1]: https://symfony.com/doc/current/setup/flex.html
+[2]: https://symfony.com

vendor/symfony/flex/composer.json

@@ -0,0 +1,32 @@
+{
+    "name": "symfony/flex",
+    "type": "composer-plugin",
+    "description": "Composer plugin for Symfony",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Fabien Potencier",
+            "email": "fabien.potencier@gmail.com"
+        }
+    ],
+    "minimum-stability": "dev",
+    "require": {
+        "php": ">=7.1",
+        "composer-plugin-api": "^1.0|^2.0"
+    },
+    "require-dev": {
+        "composer/composer": "^1.0.2|^2.0",
+        "symfony/dotenv": "^4.4|^5.0|^6.0",
+        "symfony/filesystem": "^4.4|^5.0|^6.0",
+        "symfony/phpunit-bridge": "^4.4.12|^5.0|^6.0",
+        "symfony/process": "^4.4|^5.0|^6.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Symfony\\Flex\\": "src"
+        }
+    },
+    "extra": {
+        "class": "Symfony\\Flex\\Flex"
+    }
+}

vendor/symfony/flex/src/Cache.php

@@ -0,0 +1,161 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Cache as BaseCache;
+use Composer\IO\IOInterface;
+use Composer\Package\RootPackageInterface;
+use Composer\Semver\Constraint\Constraint;
+use Composer\Semver\VersionParser;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class Cache extends BaseCache
+{
+    private $versions;
+    private $versionParser;
+    private $symfonyRequire;
+    private $rootConstraints = [];
+    private $symfonyConstraints;
+    private $downloader;
+    private $io;
+
+    public function setSymfonyRequire(string $symfonyRequire, RootPackageInterface $rootPackage, Downloader $downloader, IOInterface $io = null)
+    {
+        $this->versionParser = new VersionParser();
+        $this->symfonyRequire = $symfonyRequire;
+        $this->symfonyConstraints = $this->versionParser->parseConstraints($symfonyRequire);
+        $this->downloader = $downloader;
+        $this->io = $io;
+
+        foreach ($rootPackage->getRequires() + $rootPackage->getDevRequires() as $name => $link) {
+            $this->rootConstraints[$name] = $link->getConstraint();
+        }
+    }
+
+    public function read($file)
+    {
+        $content = parent::read($file);
+
+        if (0 === strpos($file, 'provider-symfony$') && \is_array($data = json_decode($content, true))) {
+            $content = json_encode($this->removeLegacyTags($data));
+        }
+
+        return $content;
+    }
+
+    public function removeLegacyTags(array $data): array
+    {
+        if (!$this->symfonyConstraints || !isset($data['packages'])) {
+            return $data;
+        }
+
+        foreach ($data['packages'] as $name => $versions) {
+            if (!isset($this->getVersions()['splits'][$name])) {
+                continue;
+            }
+
+            $rootConstraint = $this->rootConstraints[$name] ?? null;
+            $rootVersions = [];
+
+            foreach ($versions as $version => $composerJson) {
+                if (null !== $alias = $composerJson['extra']['branch-alias'][$version] ?? null) {
+                    $normalizedVersion = $this->versionParser->normalize($alias);
+                } elseif (null === $normalizedVersion = $composerJson['version_normalized'] ?? null) {
+                    continue;
+                }
+
+                $constraint = new Constraint('==', $normalizedVersion);
+
+                if ($rootConstraint && $rootConstraint->matches($constraint)) {
+                    $rootVersions[$version] = $composerJson;
+                }
+
+                if (!$this->symfonyConstraints->matches($constraint)) {
+                    if (null !== $this->io) {
+                        $this->io->writeError(sprintf('<info>Restricting packages listed in "symfony/symfony" to "%s"</>', $this->symfonyRequire));
+                        $this->io = null;
+                    }
+                    unset($versions[$version]);
+                }
+            }
+
+            if ($rootConstraint && !array_intersect_key($rootVersions, $versions)) {
+                $versions = $rootVersions;
+            }
+
+            $data['packages'][$name] = $versions;
+        }
+
+        if (null === $symfonySymfony = $data['packages']['symfony/symfony'] ?? null) {
+            return $data;
+        }
+
+        foreach ($symfonySymfony as $version => $composerJson) {
+            if (null !== $alias = $composerJson['extra']['branch-alias'][$version] ?? null) {
+                $normalizedVersion = $this->versionParser->normalize($alias);
+            } elseif (null === $normalizedVersion = $composerJson['version_normalized'] ?? null) {
+                continue;
+            }
+
+            if (!$this->symfonyConstraints->matches(new Constraint('==', $normalizedVersion))) {
+                unset($symfonySymfony[$version]);
+            }
+        }
+
+        if ($symfonySymfony) {
+            $data['packages']['symfony/symfony'] = $symfonySymfony;
+        }
+
+        return $data;
+    }
+
+    private function getVersions(): array
+    {
+        if (null !== $this->versions) {
+            return $this->versions;
+        }
+
+        $versions = $this->downloader->getVersions();
+        $this->downloader = null;
+        $okVersions = [];
+
+        if (!isset($versions['splits'])) {
+            throw new \LogicException('The Flex index is missing a "splits" entry. Did you forget to add "flex://defaults" in the "extra.symfony.endpoint" array of your composer.json?');
+        }
+        foreach ($versions['splits'] as $name => $vers) {
+            foreach ($vers as $i => $v) {
+                if (!isset($okVersions[$v])) {
+                    $okVersions[$v] = false;
+
+                    for ($j = 0; $j < 60; ++$j) {
+                        if ($this->symfonyConstraints->matches(new Constraint('==', $v.'.'.$j.'.0'))) {
+                            $okVersions[$v] = true;
+                            break;
+                        }
+                    }
+                }
+
+                if (!$okVersions[$v]) {
+                    unset($vers[$i]);
+                }
+            }
+
+            if (!$vers || $vers === $versions['splits'][$name]) {
+                unset($versions['splits'][$name]);
+            }
+        }
+
+        return $this->versions = $versions;
+    }
+}

vendor/symfony/flex/src/Command/DumpEnvCommand.php

@@ -0,0 +1,147 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Command;
+
+use Composer\Command\BaseCommand;
+use Composer\Config;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Dotenv\Dotenv;
+use Symfony\Flex\Options;
+
+class DumpEnvCommand extends BaseCommand
+{
+    private $config;
+    private $options;
+
+    public function __construct(Config $config, Options $options)
+    {
+        $this->config = $config;
+        $this->options = $options;
+
+        parent::__construct();
+    }
+
+    protected function configure()
+    {
+        $this->setName('symfony:dump-env')
+            ->setAliases(['dump-env'])
+            ->setDescription('Compiles .env files to .env.local.php.')
+            ->setDefinition([
+                new InputArgument('env', InputArgument::OPTIONAL, 'The application environment to dump .env files for - e.g. "prod".'),
+            ])
+            ->addOption('empty', null, InputOption::VALUE_NONE, 'Ignore the content of .env files')
+        ;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $runtime = $this->options->get('runtime') ?? [];
+        $envKey = $runtime['env_var_name'] ?? 'APP_ENV';
+
+        if ($env = $input->getArgument('env') ?? $runtime['env'] ?? null) {
+            $_SERVER[$envKey] = $env;
+        }
+
+        $path = $this->options->get('root-dir').'/'.($runtime['dotenv_path'] ?? '.env');
+
+        if (!$env || !$input->getOption('empty')) {
+            $vars = $this->loadEnv($path, $env, $runtime);
+            $env = $vars[$envKey];
+        }
+
+        if ($input->getOption('empty')) {
+            $vars = [$envKey => $env];
+        }
+
+        $vars = var_export($vars, true);
+        $vars = <<<EOF
+<?php
+
+// This file was generated by running "composer dump-env $env"
+
+return $vars;
+
+EOF;
+        file_put_contents($path.'.local.php', $vars, \LOCK_EX);
+
+        $this->getIO()->writeError('Successfully dumped .env files in <info>.env.local.php</>');
+
+        return 0;
+    }
+
+    private function loadEnv(string $path, ?string $env, array $runtime): array
+    {
+        if (!file_exists($autoloadFile = $this->config->get('vendor-dir').'/autoload.php')) {
+            throw new \RuntimeException(sprintf('Please run "composer install" before running this command: "%s" not found.', $autoloadFile));
+        }
+
+        require $autoloadFile;
+
+        if (!class_exists(Dotenv::class)) {
+            throw new \RuntimeException('Please run "composer require symfony/dotenv" to load the ".env" files configuring the application.');
+        }
+
+        $envKey = $runtime['env_var_name'] ?? 'APP_ENV';
+        $globalsBackup = [$_SERVER, $_ENV];
+        unset($_SERVER[$envKey]);
+        $_ENV = [$envKey => $env];
+        $_SERVER['SYMFONY_DOTENV_VARS'] = implode(',', array_keys($_SERVER));
+        putenv('SYMFONY_DOTENV_VARS='.$_SERVER['SYMFONY_DOTENV_VARS']);
+
+        try {
+            if (method_exists(Dotenv::class, 'usePutenv')) {
+                $dotenv = new Dotenv();
+            } else {
+                $dotenv = new Dotenv(false);
+            }
+
+            if (!$env && file_exists($p = "$path.local")) {
+                $env = $_ENV[$envKey] = $dotenv->parse(file_get_contents($p), $p)[$envKey] ?? null;
+            }
+
+            if (!$env) {
+                throw new \RuntimeException(sprintf('Please provide the name of the environment either by passing it as command line argument or by defining the "%s" variable in the ".env.local" file.', $envKey));
+            }
+
+            $testEnvs = $runtime['test_envs'] ?? ['test'];
+
+            if (method_exists($dotenv, 'loadEnv')) {
+                $dotenv->loadEnv($path, $envKey, 'dev', $testEnvs);
+            } else {
+                // fallback code in case your Dotenv component is not 4.2 or higher (when loadEnv() was added)
+                $dotenv->load(file_exists($path) || !file_exists($p = "$path.dist") ? $path : $p);
+
+                if (!\in_array($env, $testEnvs, true) && file_exists($p = "$path.local")) {
+                    $dotenv->load($p);
+                }
+
+                if (file_exists($p = "$path.$env")) {
+                    $dotenv->load($p);
+                }
+
+                if (file_exists($p = "$path.$env.local")) {
+                    $dotenv->load($p);
+                }
+            }
+
+            unset($_ENV['SYMFONY_DOTENV_VARS']);
+            $env = $_ENV;
+        } finally {
+            list($_SERVER, $_ENV) = $globalsBackup;
+        }
+
+        return $env;
+    }
+}

vendor/symfony/flex/src/Command/GenerateIdCommand.php

@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Command;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+class GenerateIdCommand extends Command
+{
+    public function __construct()
+    {
+        // No-op to support downgrading to v1.12.x
+        parent::__construct();
+    }
+
+    protected function configure()
+    {
+        $this->setName('symfony:generate-id');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $ui = new SymfonyStyle($input, $output);
+        $ui->error('This command is a noop and should not be used anymore.');
+
+        return 1;
+    }
+}

vendor/symfony/flex/src/Command/InstallRecipesCommand.php

@@ -0,0 +1,181 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Command;
+
+use Composer\Command\BaseCommand;
+use Composer\DependencyResolver\Operation\InstallOperation;
+use Composer\Util\ProcessExecutor;
+use Symfony\Component\Console\Exception\RuntimeException;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Flex\Event\UpdateEvent;
+use Symfony\Flex\Flex;
+
+class InstallRecipesCommand extends BaseCommand
+{
+    /** @var Flex */
+    private $flex;
+    private $rootDir;
+    private $dotenvPath;
+
+    public function __construct(/* cannot be type-hinted */ $flex, string $rootDir, string $dotenvPath = '.env')
+    {
+        $this->flex = $flex;
+        $this->rootDir = $rootDir;
+        $this->dotenvPath = $dotenvPath;
+
+        parent::__construct();
+    }
+
+    protected function configure()
+    {
+        $this->setName('symfony:recipes:install')
+            ->setAliases(['recipes:install', 'symfony:sync-recipes', 'sync-recipes', 'fix-recipes'])
+            ->setDescription('Installs or reinstalls recipes for already installed packages.')
+            ->addArgument('packages', InputArgument::IS_ARRAY | InputArgument::OPTIONAL, 'Recipes that should be installed.')
+            ->addOption('force', null, InputOption::VALUE_NONE, 'Overwrite existing files when a new version of a recipe is available')
+            ->addOption('reset', null, InputOption::VALUE_NONE, 'Reset all recipes back to their initial state (should be combined with --force)')
+        ;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $win = '\\' === \DIRECTORY_SEPARATOR;
+        $force = (bool) $input->getOption('force');
+
+        if ($force && !@is_executable(strtok(exec($win ? 'where git' : 'command -v git'), \PHP_EOL))) {
+            throw new RuntimeException('Cannot run "sync-recipes --force": git not found.');
+        }
+
+        $symfonyLock = $this->flex->getLock();
+        $composer = $this->getComposer();
+        $locker = $composer->getLocker();
+        $lockData = $locker->getLockData();
+
+        $packages = [];
+        $totalPackages = [];
+        foreach ($lockData['packages'] as $pkg) {
+            $totalPackages[] = $pkg['name'];
+            if ($force || !$symfonyLock->has($pkg['name'])) {
+                $packages[] = $pkg['name'];
+            }
+        }
+        foreach ($lockData['packages-dev'] as $pkg) {
+            $totalPackages[] = $pkg['name'];
+            if ($force || !$symfonyLock->has($pkg['name'])) {
+                $packages[] = $pkg['name'];
+            }
+        }
+
+        $io = $this->getIO();
+
+        if (!$io->isVerbose()) {
+            $io->writeError([
+                'Run command with <info>-v</info> to see more details',
+                '',
+            ]);
+        }
+
+        if ($targetPackages = $input->getArgument('packages')) {
+            if ($invalidPackages = array_diff($targetPackages, $totalPackages)) {
+                $io->writeError(sprintf('<warning>Cannot update: some packages are not installed:</warning> %s', implode(', ', $invalidPackages)));
+
+                return 1;
+            }
+
+            if ($packagesRequiringForce = array_diff($targetPackages, $packages)) {
+                $io->writeError(sprintf('Recipe(s) already installed for: <info>%s</info>', implode(', ', $packagesRequiringForce)));
+                $io->writeError('Re-run the command with <info>--force</info> to re-install the recipes.');
+                $io->writeError('');
+            }
+
+            $packages = array_diff($targetPackages, $packagesRequiringForce);
+        }
+
+        if (!$packages) {
+            $io->writeError('No recipes to install.');
+
+            return 0;
+        }
+
+        $composer = $this->getComposer();
+        $installedRepo = $composer->getRepositoryManager()->getLocalRepository();
+
+        $operations = [];
+        foreach ($packages as $package) {
+            if (null === $pkg = $installedRepo->findPackage($package, '*')) {
+                $io->writeError(sprintf('<error>Package %s is not installed</>', $package));
+
+                return 1;
+            }
+
+            $operations[] = new InstallOperation($pkg);
+        }
+
+        $dotenvFile = $this->dotenvPath;
+        $dotenvPath = $this->rootDir.'/'.$dotenvFile;
+
+        if ($createEnvLocal = $force && file_exists($dotenvPath) && file_exists($dotenvPath.'.dist') && !file_exists($dotenvPath.'.local')) {
+            rename($dotenvPath, $dotenvPath.'.local');
+            $pipes = [];
+            proc_close(proc_open(sprintf('git mv %s %s > %s 2>&1 || %s %1$s %2$s', ProcessExecutor::escape($dotenvFile.'.dist'), ProcessExecutor::escape($dotenvFile), $win ? 'NUL' : '/dev/null', $win ? 'rename' : 'mv'), $pipes, $pipes, $this->rootDir));
+            if (file_exists($this->rootDir.'/phpunit.xml.dist')) {
+                touch($dotenvPath.'.test');
+            }
+        }
+
+        $this->flex->update(new UpdateEvent($force, (bool) $input->getOption('reset')), $operations);
+
+        if ($force) {
+            $output = [
+                '',
+                '<bg=blue;fg=white>                                                            </>',
+                '<bg=blue;fg=white> Files have been reset to the latest version of the recipe. </>',
+                '<bg=blue;fg=white>                                                            </>',
+                '',
+                '  * Use <comment>git diff</> to inspect the changes.',
+                '',
+                '    Not all of the changes will be relevant to your app: you now',
+                '    need to selectively add or revert them using e.g. a combination',
+                '    of <comment>git add -p</> and <comment>git checkout -p</>',
+                '',
+            ];
+
+            if ($createEnvLocal) {
+                $output[] = '    Dotenv files have been renamed: .env -> .env.local and .env.dist -> .env';
+                $output[] = '    See https://symfony.com/doc/current/configuration/dot-env-changes.html';
+                $output[] = '';
+            }
+
+            $output[] = '  * Use <comment>git checkout .</> to revert the changes.';
+            $output[] = '';
+
+            if ($createEnvLocal) {
+                $root = '.' !== $this->rootDir ? $this->rootDir.'/' : '';
+                $output[] = '    To revert the changes made to .env files, run';
+                $output[] = sprintf('    <comment>git mv %s %s</> && <comment>%s %s %1$s</>', ProcessExecutor::escape($root.$dotenvFile), ProcessExecutor::escape($root.$dotenvFile.'.dist'), $win ? 'rename' : 'mv', ProcessExecutor::escape($root.$dotenvFile.'.local'));
+                $output[] = '';
+            }
+
+            $output[] = '    New (untracked) files can be inspected using <comment>git clean --dry-run</>';
+            $output[] = '    Add the new files you want to keep using <comment>git add</>';
+            $output[] = '    then delete the rest using <comment>git clean --force</>';
+            $output[] = '';
+
+            $io->write($output);
+        }
+
+        return 0;
+    }
+}

vendor/symfony/flex/src/Command/RecipesCommand.php

@@ -0,0 +1,329 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Command;
+
+use Composer\Command\BaseCommand;
+use Composer\Downloader\TransportException;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Flex\GithubApi;
+use Symfony\Flex\InformationOperation;
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+
+/**
+ * @author Maxime Hélias <maximehelias16@gmail.com>
+ */
+class RecipesCommand extends BaseCommand
+{
+    /** @var \Symfony\Flex\Flex */
+    private $flex;
+
+    private $symfonyLock;
+    private $githubApi;
+
+    public function __construct(/* cannot be type-hinted */ $flex, Lock $symfonyLock, $downloader)
+    {
+        $this->flex = $flex;
+        $this->symfonyLock = $symfonyLock;
+        $this->githubApi = new GithubApi($downloader);
+
+        parent::__construct();
+    }
+
+    protected function configure()
+    {
+        $this->setName('symfony:recipes')
+            ->setAliases(['recipes'])
+            ->setDescription('Shows information about all available recipes.')
+            ->setDefinition([
+                new InputArgument('package', InputArgument::OPTIONAL, 'Package to inspect, if not provided all packages are.'),
+            ])
+            ->addOption('outdated', 'o', InputOption::VALUE_NONE, 'Show only recipes that are outdated')
+        ;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $installedRepo = $this->getComposer()->getRepositoryManager()->getLocalRepository();
+
+        // Inspect one or all packages
+        $package = $input->getArgument('package');
+        if (null !== $package) {
+            $packages = [0 => ['name' => strtolower($package)]];
+        } else {
+            $locker = $this->getComposer()->getLocker();
+            $lockData = $locker->getLockData();
+
+            // Merge all packages installed
+            $packages = array_merge($lockData['packages'], $lockData['packages-dev']);
+        }
+
+        $operations = [];
+        foreach ($packages as $value) {
+            if (null === $pkg = $installedRepo->findPackage($value['name'], '*')) {
+                $this->getIO()->writeError(sprintf('<error>Package %s is not installed</error>', $value['name']));
+
+                continue;
+            }
+
+            $operations[] = new InformationOperation($pkg);
+        }
+
+        $recipes = $this->flex->fetchRecipes($operations, false);
+        ksort($recipes);
+
+        $nbRecipe = \count($recipes);
+        if ($nbRecipe <= 0) {
+            $this->getIO()->writeError('<error>No recipe found</error>');
+
+            return 1;
+        }
+
+        // Display the information about a specific recipe
+        if (1 === $nbRecipe) {
+            $this->displayPackageInformation(current($recipes));
+
+            return 0;
+        }
+
+        $outdated = $input->getOption('outdated');
+
+        $write = [];
+        $hasOutdatedRecipes = false;
+        /** @var Recipe $recipe */
+        foreach ($recipes as $name => $recipe) {
+            $lockRef = $this->symfonyLock->get($name)['recipe']['ref'] ?? null;
+
+            $additional = null;
+            if (null === $lockRef && null !== $recipe->getRef()) {
+                $additional = '<comment>(recipe not installed)</comment>';
+            } elseif ($recipe->getRef() !== $lockRef && !$recipe->isAuto()) {
+                $additional = '<comment>(update available)</comment>';
+            }
+
+            if ($outdated && null === $additional) {
+                continue;
+            }
+
+            $hasOutdatedRecipes = true;
+            $write[] = sprintf(' * %s %s', $name, $additional);
+        }
+
+        // Nothing to display
+        if (!$hasOutdatedRecipes) {
+            return 0;
+        }
+
+        $this->getIO()->write(array_merge([
+            '',
+            '<bg=blue;fg=white>                      </>',
+            sprintf('<bg=blue;fg=white> %s recipes.   </>', $outdated ? ' Outdated' : 'Available'),
+            '<bg=blue;fg=white>                      </>',
+            '',
+        ], $write, [
+            '',
+            'Run:',
+            ' * <info>composer recipes vendor/package</info> to see details about a recipe.',
+            ' * <info>composer recipes:update vendor/package</info> to update that recipe.',
+            '',
+        ]));
+
+        if ($outdated) {
+            return 1;
+        }
+
+        return 0;
+    }
+
+    private function displayPackageInformation(Recipe $recipe)
+    {
+        $io = $this->getIO();
+        $recipeLock = $this->symfonyLock->get($recipe->getName());
+
+        $lockRef = $recipeLock['recipe']['ref'] ?? null;
+        $lockRepo = $recipeLock['recipe']['repo'] ?? null;
+        $lockFiles = $recipeLock['files'] ?? null;
+        $lockBranch = $recipeLock['recipe']['branch'] ?? null;
+        $lockVersion = $recipeLock['recipe']['version'] ?? $recipeLock['version'] ?? null;
+
+        $status = '<comment>up to date</comment>';
+        if ($recipe->isAuto()) {
+            $status = '<comment>auto-generated recipe</comment>';
+        } elseif (null === $lockRef && null !== $recipe->getRef()) {
+            $status = '<comment>recipe not installed</comment>';
+        } elseif ($recipe->getRef() !== $lockRef) {
+            $status = '<comment>update available</comment>';
+        }
+
+        $gitSha = null;
+        $commitDate = null;
+        if (null !== $lockRef && null !== $lockRepo) {
+            try {
+                $recipeCommitData = $this->githubApi->findRecipeCommitDataFromTreeRef(
+                    $recipe->getName(),
+                    $lockRepo,
+                    $lockBranch ?? '',
+                    $lockVersion,
+                    $lockRef
+                );
+                $gitSha = $recipeCommitData ? $recipeCommitData['commit'] : null;
+                $commitDate = $recipeCommitData ? $recipeCommitData['date'] : null;
+            } catch (TransportException $exception) {
+                $io->writeError('Error downloading exact git sha for installed recipe.');
+            }
+        }
+
+        $io->write('<info>name</info>             : '.$recipe->getName());
+        $io->write('<info>version</info>          : '.($lockVersion ?? 'n/a'));
+        $io->write('<info>status</info>           : '.$status);
+        if (!$recipe->isAuto() && null !== $lockVersion) {
+            $recipeUrl = sprintf(
+                'https://%s/tree/%s/%s/%s',
+                $lockRepo,
+                // if something fails, default to the branch as the closest "sha"
+                $gitSha ?? $lockBranch,
+                $recipe->getName(),
+                $lockVersion
+            );
+
+            $io->write('<info>installed recipe</info> : '.$recipeUrl);
+        }
+
+        if ($lockRef !== $recipe->getRef()) {
+            $io->write('<info>latest recipe</info>    : '.$recipe->getURL());
+        }
+
+        if ($lockRef !== $recipe->getRef() && null !== $lockVersion) {
+            $historyUrl = sprintf(
+                'https://%s/commits/%s/%s',
+                $lockRepo,
+                $lockBranch,
+                $recipe->getName()
+            );
+
+            // show commits since one second after the currently-installed recipe
+            if (null !== $commitDate) {
+                $historyUrl .= '?since='.(new \DateTime($commitDate))->modify('+1 seconds')->format('c\Z');
+            }
+
+            $io->write('<info>recipe history</info>   : '.$historyUrl);
+        }
+
+        if (null !== $lockFiles) {
+            $io->write('<info>files</info>            : ');
+            $io->write('');
+
+            $tree = $this->generateFilesTree($lockFiles);
+
+            $this->displayFilesTree($tree);
+        }
+
+        if ($lockRef !== $recipe->getRef()) {
+            $io->write([
+                '',
+                'Update this recipe by running:',
+                sprintf('<info>composer recipes:update %s</info>', $recipe->getName()),
+            ]);
+        }
+    }
+
+    private function generateFilesTree(array $files): array
+    {
+        $tree = [];
+        foreach ($files as $file) {
+            $path = explode('/', $file);
+
+            $tree = array_merge_recursive($tree, $this->addNode($path));
+        }
+
+        return $tree;
+    }
+
+    private function addNode(array $node): array
+    {
+        $current = array_shift($node);
+
+        $subTree = [];
+        if (null !== $current) {
+            $subTree[$current] = $this->addNode($node);
+        }
+
+        return $subTree;
+    }
+
+    /**
+     * Note : We do not display file modification information with Configurator like ComposerScripts, Container, DockerComposer, Dockerfile, Env, Gitignore and Makefile.
+     */
+    private function displayFilesTree(array $tree)
+    {
+        end($tree);
+        $endKey = key($tree);
+        foreach ($tree as $dir => $files) {
+            $treeBar = '├';
+            $total = \count($files);
+            if (0 === $total || $endKey === $dir) {
+                $treeBar = '└';
+            }
+
+            $info = sprintf(
+                '%s──%s',
+                $treeBar,
+                $dir
+            );
+            $this->writeTreeLine($info);
+
+            $treeBar = str_replace('└', ' ', $treeBar);
+
+            $this->displayTree($files, $treeBar);
+        }
+    }
+
+    private function displayTree(array $tree, $previousTreeBar = '├', $level = 1)
+    {
+        $previousTreeBar = str_replace('├', '│', $previousTreeBar);
+        $treeBar = $previousTreeBar.'  ├';
+
+        $i = 0;
+        $total = \count($tree);
+
+        foreach ($tree as $dir => $files) {
+            ++$i;
+            if ($i === $total) {
+                $treeBar = $previousTreeBar.'  └';
+            }
+
+            $info = sprintf(
+                '%s──%s',
+                $treeBar,
+                $dir
+            );
+            $this->writeTreeLine($info);
+
+            $treeBar = str_replace('└', ' ', $treeBar);
+
+            $this->displayTree($files, $treeBar, $level + 1);
+        }
+    }
+
+    private function writeTreeLine($line)
+    {
+        $io = $this->getIO();
+        if (!$io->isDecorated()) {
+            $line = str_replace(['└', '├', '──', '│'], ['`-', '|-', '-', '|'], $line);
+        }
+
+        $io->write($line);
+    }
+}

vendor/symfony/flex/src/Command/RemoveCommand.php

@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Command;
+
+use Composer\Command\RemoveCommand as BaseRemoveCommand;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Flex\PackageResolver;
+
+class RemoveCommand extends BaseRemoveCommand
+{
+    private $resolver;
+
+    public function __construct(PackageResolver $resolver)
+    {
+        $this->resolver = $resolver;
+
+        parent::__construct();
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $input->setArgument('packages', $this->resolver->resolve($input->getArgument('packages')));
+
+        return parent::execute($input, $output);
+    }
+}

vendor/symfony/flex/src/Command/RequireCommand.php

@@ -0,0 +1,90 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Command;
+
+use Composer\Command\RequireCommand as BaseRequireCommand;
+use Composer\Factory;
+use Composer\Json\JsonFile;
+use Composer\Json\JsonManipulator;
+use Composer\Plugin\PluginInterface;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Flex\PackageResolver;
+
+class RequireCommand extends BaseRequireCommand
+{
+    private $resolver;
+    private $updateComposerLock;
+
+    public function __construct(PackageResolver $resolver, \Closure $updateComposerLock = null)
+    {
+        $this->resolver = $resolver;
+        $this->updateComposerLock = $updateComposerLock;
+
+        parent::__construct();
+    }
+
+    protected function configure()
+    {
+        parent::configure();
+        $this->addOption('no-unpack', null, InputOption::VALUE_NONE, '[DEPRECATED] Disable unpacking Symfony packs in composer.json.');
+        $this->addOption('unpack', null, InputOption::VALUE_NONE, '[DEPRECATED] Unpacking is now enabled by default.');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        if ($input->getOption('no-unpack')) {
+            $this->getIO()->writeError('<warning>The "--unpack" command line option is deprecated; unpacking is now enabled by default.</warning>');
+        }
+
+        if ($input->getOption('unpack')) {
+            $this->getIO()->writeError('<warning>The "--unpack" command line option is deprecated; unpacking is now enabled by default.</warning>');
+        }
+
+        $packages = $this->resolver->resolve($input->getArgument('packages'), true);
+        if ($packages) {
+            $input->setArgument('packages', $this->resolver->resolve($input->getArgument('packages'), true));
+        }
+
+        if (version_compare('2.0.0', PluginInterface::PLUGIN_API_VERSION, '>') && $input->hasOption('no-suggest')) {
+            $input->setOption('no-suggest', true);
+        }
+
+        $file = Factory::getComposerFile();
+        $contents = file_get_contents($file);
+        $json = JsonFile::parseJson($contents);
+
+        if (\array_key_exists('require-dev', $json) && !$json['require-dev'] && (new JsonManipulator($contents))->removeMainKey('require-dev')) {
+            $manipulator = new JsonManipulator($contents);
+            $manipulator->addLink('require-dev', 'php', '*');
+            file_put_contents($file, $manipulator->getContents());
+        } else {
+            $file = null;
+        }
+        unset($contents, $json, $manipulator);
+
+        try {
+            return parent::execute($input, $output) ?? 0;
+        } finally {
+            if (null !== $file) {
+                $manipulator = new JsonManipulator(file_get_contents($file));
+                $manipulator->removeSubNode('require-dev', 'php');
+                file_put_contents($file, $manipulator->getContents());
+
+                if ($this->updateComposerLock) {
+                    ($this->updateComposerLock)();
+                }
+            }
+        }
+    }
+}

vendor/symfony/flex/src/Command/UnpackCommand.php

@@ -0,0 +1,128 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Command;
+
+use Composer\Command\BaseCommand;
+use Composer\Factory;
+use Composer\Installer;
+use Composer\Package\Version\VersionParser;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Flex\PackageResolver;
+use Symfony\Flex\Unpack\Operation;
+use Symfony\Flex\Unpacker;
+
+/**
+ * @deprecated since Flex 1.4
+ */
+class UnpackCommand extends BaseCommand
+{
+    private $resolver;
+
+    public function __construct(PackageResolver $resolver)
+    {
+        $this->resolver = $resolver;
+
+        parent::__construct();
+    }
+
+    protected function configure()
+    {
+        $this->setName('symfony:unpack')
+            ->setAliases(['unpack'])
+            ->setDescription('[DEPRECATED] Unpacks a Symfony pack.')
+            ->setDefinition([
+                new InputArgument('packages', InputArgument::IS_ARRAY | InputArgument::REQUIRED, 'Installed packages to unpack.'),
+                new InputOption('sort-packages', null, InputOption::VALUE_NONE, 'Sorts packages'),
+            ])
+        ;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $composer = $this->getComposer();
+        $packages = $this->resolver->resolve($input->getArgument('packages'), true);
+        $io = $this->getIO();
+        $lockData = $composer->getLocker()->getLockData();
+        $installedRepo = $composer->getRepositoryManager()->getLocalRepository();
+        $versionParser = new VersionParser();
+        $dryRun = $input->hasOption('dry-run') && $input->getOption('dry-run');
+
+        $io->writeError('<warning>Command "symfony:unpack" is deprecated, Symfony packs are always unpacked now.</>');
+
+        $op = new Operation(true, $input->getOption('sort-packages') || $composer->getConfig()->get('sort-packages'));
+        foreach ($versionParser->parseNameVersionPairs($packages) as $package) {
+            if (null === $pkg = $installedRepo->findPackage($package['name'], '*')) {
+                $io->writeError(sprintf('<error>Package %s is not installed</>', $package['name']));
+
+                return 1;
+            }
+
+            $dev = false;
+            foreach ($lockData['packages-dev'] as $p) {
+                if ($package['name'] === $p['name']) {
+                    $dev = true;
+
+                    break;
+                }
+            }
+
+            $op->addPackage($pkg->getName(), $pkg->getVersion(), $dev);
+        }
+
+        $unpacker = new Unpacker($composer, $this->resolver, $dryRun);
+        $result = $unpacker->unpack($op);
+
+        // remove the packages themselves
+        if (!$result->getUnpacked()) {
+            $io->writeError('<info>Nothing to unpack</>');
+
+            return 0;
+        }
+
+        $io->writeError('<info>Unpacking Symfony packs</>');
+        foreach ($result->getUnpacked() as $pkg) {
+            $io->writeError(sprintf('  - Unpacked <info>%s</>', $pkg->getName()));
+        }
+
+        $unpacker->updateLock($result, $io);
+
+        if ($input->hasOption('no-install') && $input->getOption('no-install')) {
+            return 0;
+        }
+
+        $composer = Factory::create($io, null, true);
+        $installer = Installer::create($io, $composer);
+        $installer
+            ->setDryRun($dryRun)
+            ->setDevMode(true)
+            ->setDumpAutoloader(false)
+            ->setIgnorePlatformRequirements(true)
+            ->setUpdate(true)
+            ->setUpdateAllowList(['php'])
+        ;
+
+        if (method_exists($composer->getEventDispatcher(), 'setRunScripts')) {
+            $composer->getEventDispatcher()->setRunScripts(false);
+        } else {
+            $installer->setRunScripts(false);
+        }
+
+        if (method_exists($installer, 'setSkipSuggest')) {
+            $installer->setSkipSuggest(true);
+        }
+
+        return $installer->run();
+    }
+}

vendor/symfony/flex/src/Command/UpdateCommand.php

@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Command;
+
+use Composer\Command\UpdateCommand as BaseUpdateCommand;
+use Composer\Plugin\PluginInterface;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Flex\PackageResolver;
+
+class UpdateCommand extends BaseUpdateCommand
+{
+    private $resolver;
+
+    public function __construct(PackageResolver $resolver)
+    {
+        $this->resolver = $resolver;
+
+        parent::__construct();
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $input->setArgument('packages', $this->resolver->resolve($input->getArgument('packages')));
+
+        if (version_compare('2.0.0', PluginInterface::PLUGIN_API_VERSION, '>') && $input->hasOption('no-suggest')) {
+            $input->setOption('no-suggest', true);
+        }
+
+        return parent::execute($input, $output);
+    }
+}

vendor/symfony/flex/src/Command/UpdateRecipesCommand.php

@@ -0,0 +1,423 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Command;
+
+use Composer\Command\BaseCommand;
+use Composer\IO\IOInterface;
+use Composer\Util\ProcessExecutor;
+use Symfony\Component\Console\Exception\RuntimeException;
+use Symfony\Component\Console\Formatter\OutputFormatterStyle;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Flex\Configurator;
+use Symfony\Flex\Downloader;
+use Symfony\Flex\Flex;
+use Symfony\Flex\GithubApi;
+use Symfony\Flex\InformationOperation;
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipePatcher;
+use Symfony\Flex\Update\RecipeUpdate;
+
+class UpdateRecipesCommand extends BaseCommand
+{
+    /** @var Flex */
+    private $flex;
+    private $downloader;
+    private $configurator;
+    private $rootDir;
+    private $githubApi;
+    private $processExecutor;
+
+    public function __construct(/* cannot be type-hinted */ $flex, Downloader $downloader, $httpDownloader, Configurator $configurator, string $rootDir)
+    {
+        $this->flex = $flex;
+        $this->downloader = $downloader;
+        $this->configurator = $configurator;
+        $this->rootDir = $rootDir;
+        $this->githubApi = new GithubApi($httpDownloader);
+
+        parent::__construct();
+    }
+
+    protected function configure()
+    {
+        $this->setName('symfony:recipes:update')
+            ->setAliases(['recipes:update'])
+            ->setDescription('Updates an already-installed recipe to the latest version.')
+            ->addArgument('package', InputArgument::OPTIONAL, 'Recipe that should be updated.')
+        ;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $win = '\\' === \DIRECTORY_SEPARATOR;
+        $runtimeExceptionClass = class_exists(RuntimeException::class) ? RuntimeException::class : \RuntimeException::class;
+        if (!@is_executable(strtok(exec($win ? 'where git' : 'command -v git'), \PHP_EOL))) {
+            throw new $runtimeExceptionClass('Cannot run "recipes:update": git not found.');
+        }
+
+        $io = $this->getIO();
+        if (!$this->isIndexClean($io)) {
+            $io->write([
+                '  Cannot run <comment>recipes:update</comment>: Your git index contains uncommitted changes.',
+                '  Please commit or stash them and try again!',
+            ]);
+
+            return 1;
+        }
+
+        $packageName = $input->getArgument('package');
+        $symfonyLock = $this->flex->getLock();
+        if (!$packageName) {
+            $packageName = $this->askForPackage($io, $symfonyLock);
+
+            if (null === $packageName) {
+                $io->writeError('All packages appear to be up-to-date!');
+
+                return 0;
+            }
+        }
+
+        if (!$symfonyLock->has($packageName)) {
+            $io->writeError([
+                'Package not found inside symfony.lock. It looks like it\'s not installed?',
+                sprintf('Try running <info>composer recipes:install %s --force -v</info> to re-install the recipe.', $packageName),
+            ]);
+
+            return 1;
+        }
+
+        $packageLockData = $symfonyLock->get($packageName);
+        if (!isset($packageLockData['recipe'])) {
+            $io->writeError([
+                'It doesn\'t look like this package had a recipe when it was originally installed.',
+                'To install the latest version of the recipe, if there is one, run:',
+                sprintf('  <info>composer recipes:install %s --force -v</info>', $packageName),
+            ]);
+
+            return 1;
+        }
+
+        $recipeRef = $packageLockData['recipe']['ref'] ?? null;
+        $recipeVersion = $packageLockData['recipe']['version'] ?? null;
+        if (!$recipeRef || !$recipeVersion) {
+            $io->writeError([
+                'The version of the installed recipe was not saved into symfony.lock.',
+                'This is possible if it was installed by an old version of Symfony Flex.',
+                'Update the recipe by re-installing the latest version with:',
+                sprintf('  <info>composer recipes:install %s --force -v</info>', $packageName),
+            ]);
+
+            return 1;
+        }
+
+        $originalRecipe = $this->getRecipe($packageName, $recipeRef, $recipeVersion);
+
+        if (null === $originalRecipe) {
+            $io->writeError([
+                'The original recipe version you have installed could not be found, it may be too old.',
+                'Update the recipe by re-installing the latest version with:',
+                sprintf('  <info>composer recipes:install %s --force -v</info>', $packageName),
+            ]);
+
+            return 1;
+        }
+
+        $newRecipe = $this->getRecipe($packageName);
+
+        if ($newRecipe->getRef() === $originalRecipe->getRef()) {
+            $io->write(sprintf('This recipe for <info>%s</info> is already at the latest version.', $packageName));
+
+            return 0;
+        }
+
+        $io->write([
+            sprintf('  Updating recipe for <info>%s</info>...', $packageName),
+            '',
+        ]);
+
+        $recipeUpdate = new RecipeUpdate($originalRecipe, $newRecipe, $symfonyLock, $this->rootDir);
+        $this->configurator->populateUpdate($recipeUpdate);
+        $originalComposerJsonHash = $this->flex->getComposerJsonHash();
+        $patcher = new RecipePatcher($this->rootDir, $io);
+
+        try {
+            $patch = $patcher->generatePatch($recipeUpdate->getOriginalFiles(), $recipeUpdate->getNewFiles());
+            $hasConflicts = !$patcher->applyPatch($patch);
+        } catch (\Throwable $throwable) {
+            $io->writeError([
+                '<bg=red;fg=white>There was an error applying the recipe update patch</>',
+                $throwable->getMessage(),
+                '',
+                'Update the recipe by re-installing the latest version with:',
+                sprintf('  <info>composer recipes:install %s --force -v</info>', $packageName),
+            ]);
+
+            return 1;
+        }
+
+        $symfonyLock->add($packageName, $newRecipe->getLock());
+        $this->flex->finish($this->rootDir, $originalComposerJsonHash);
+
+        // stage symfony.lock, as all patched files with already be staged
+        $cmdOutput = '';
+        $this->getProcessExecutor()->execute('git add symfony.lock', $cmdOutput, $this->rootDir);
+
+        $io->write([
+            '  <bg=blue;fg=white>                      </>',
+            '  <bg=blue;fg=white> Yes! Recipe updated! </>',
+            '  <bg=blue;fg=white>                      </>',
+            '',
+        ]);
+
+        if ($hasConflicts) {
+            $io->write([
+                '  The recipe was updated but with <bg=red;fg=white>one or more conflicts</>.',
+                '  Run <comment>git status</comment> to see them.',
+                '  After resolving, commit your changes like normal.',
+            ]);
+        } else {
+            if (!$patch->getPatch()) {
+                // no changes were required
+                $io->write([
+                    '  No files were changed as a result of the update.',
+                ]);
+            } else {
+                $io->write([
+                    '  Run <comment>git status</comment> or <comment>git diff --cached</comment> to see the changes.',
+                    '  When you\'re ready, commit these changes like normal.',
+                ]);
+            }
+        }
+
+        if (0 !== \count($recipeUpdate->getCopyFromPackagePaths())) {
+            $io->write([
+                '',
+                '  <bg=red;fg=white>NOTE:</>',
+                '  This recipe copies the following paths from the bundle into your app:',
+            ]);
+            foreach ($recipeUpdate->getCopyFromPackagePaths() as $source => $target) {
+                $io->write(sprintf('  * %s => %s', $source, $target));
+            }
+            $io->write([
+                '',
+                '  The recipe updater has no way of knowing if these files have changed since you originally installed the recipe.',
+                '  And so, no updates were made to these paths.',
+            ]);
+        }
+
+        if (0 !== \count($patch->getRemovedPatches())) {
+            if (1 === \count($patch->getRemovedPatches())) {
+                $notes = [
+                    sprintf('  The file <comment>%s</comment> was not updated because it doesn\'t exist in your app.', array_keys($patch->getRemovedPatches())[0]),
+                ];
+            } else {
+                $notes = ['  The following files were not updated because they don\'t exist in your app:'];
+                foreach ($patch->getRemovedPatches() as $filename => $contents) {
+                    $notes[] = sprintf('    * <comment>%s</comment>', $filename);
+                }
+            }
+            $io->write([
+                '',
+                '  <bg=red;fg=white>NOTE:</>',
+            ]);
+            $io->write($notes);
+            $io->write('');
+            if ($io->askConfirmation('  Would you like to save the "diff" to a file so you can review it? (Y/n) ')) {
+                $patchFilename = str_replace('/', '.', $packageName).'.updates-for-deleted-files.patch';
+                file_put_contents($this->rootDir.'/'.$patchFilename, implode("\n", $patch->getRemovedPatches()));
+                $io->write([
+                    '',
+                    sprintf('  Saved diff to <info>%s</info>', $patchFilename),
+                ]);
+            }
+        }
+
+        if ($patch->getPatch()) {
+            $io->write('');
+            $io->write('  Calculating CHANGELOG...', false);
+            $changelog = $this->generateChangelog($originalRecipe);
+            $io->write("\r", false); // clear current line
+            if ($changelog) {
+                $io->write($changelog);
+            } else {
+                $io->write('No CHANGELOG could be calculated.');
+            }
+        }
+
+        return 0;
+    }
+
+    private function getRecipe(string $packageName, string $recipeRef = null, string $recipeVersion = null): ?Recipe
+    {
+        $installedRepo = $this->getComposer()->getRepositoryManager()->getLocalRepository();
+        $package = $installedRepo->findPackage($packageName, '*');
+        if (null === $package) {
+            throw new RuntimeException(sprintf('Could not find package "%s". Try running "composer install".', $packageName));
+        }
+        $operation = new InformationOperation($package);
+        if (null !== $recipeRef) {
+            $operation->setSpecificRecipeVersion($recipeRef, $recipeVersion);
+        }
+        $recipes = $this->downloader->getRecipes([$operation]);
+
+        if (0 === \count($recipes['manifests'] ?? [])) {
+            return null;
+        }
+
+        return new Recipe(
+            $package,
+            $packageName,
+            $operation->getOperationType(),
+            $recipes['manifests'][$packageName],
+            $recipes['locks'][$packageName] ?? []
+        );
+    }
+
+    private function generateChangelog(Recipe $originalRecipe): ?array
+    {
+        $recipeData = $originalRecipe->getLock()['recipe'] ?? null;
+        if (null === $recipeData) {
+            return null;
+        }
+
+        if (!isset($recipeData['ref']) || !isset($recipeData['repo']) || !isset($recipeData['branch']) || !isset($recipeData['version'])) {
+            return null;
+        }
+
+        $currentRecipeVersionData = $this->githubApi->findRecipeCommitDataFromTreeRef(
+            $originalRecipe->getName(),
+            $recipeData['repo'],
+            $recipeData['branch'],
+            $recipeData['version'],
+            $recipeData['ref']
+        );
+
+        if (!$currentRecipeVersionData) {
+            return null;
+        }
+
+        $recipeVersions = $this->githubApi->getVersionsOfRecipe(
+            $recipeData['repo'],
+            $recipeData['branch'],
+            $originalRecipe->getName()
+        );
+        if (!$recipeVersions) {
+            return null;
+        }
+
+        $newerRecipeVersions = array_filter($recipeVersions, function ($version) use ($recipeData) {
+            return version_compare($version, $recipeData['version'], '>');
+        });
+
+        $newCommits = $currentRecipeVersionData['new_commits'];
+        foreach ($newerRecipeVersions as $newerRecipeVersion) {
+            $newCommits = array_merge(
+                $newCommits,
+                $this->githubApi->getCommitDataForPath($recipeData['repo'], $originalRecipe->getName().'/'.$newerRecipeVersion, $recipeData['branch'])
+            );
+        }
+
+        $newCommits = array_unique($newCommits);
+        asort($newCommits);
+
+        $pullRequests = [];
+        foreach ($newCommits as $commit => $date) {
+            $pr = $this->githubApi->getPullRequestForCommit($commit, $recipeData['repo']);
+            if ($pr) {
+                $pullRequests[$pr['number']] = $pr;
+            }
+        }
+
+        $lines = [];
+        // borrowed from symfony/console's OutputFormatterStyle
+        $handlesHrefGracefully = 'JetBrains-JediTerm' !== getenv('TERMINAL_EMULATOR')
+                        && (!getenv('KONSOLE_VERSION') || (int) getenv('KONSOLE_VERSION') > 201100);
+        foreach ($pullRequests as $number => $data) {
+            $url = $data['url'];
+            if ($handlesHrefGracefully) {
+                $url = "\033]8;;$url\033\\$number\033]8;;\033\\";
+            }
+            $lines[] = sprintf('  * %s (PR %s)', $data['title'], $url);
+        }
+
+        return $lines;
+    }
+
+    private function askForPackage(IOInterface $io, Lock $symfonyLock): ?string
+    {
+        $installedRepo = $this->getComposer()->getRepositoryManager()->getLocalRepository();
+        $locker = $this->getComposer()->getLocker();
+        $lockData = $locker->getLockData();
+
+        // Merge all packages installed
+        $packages = array_merge($lockData['packages'], $lockData['packages-dev']);
+
+        $operations = [];
+        foreach ($packages as $value) {
+            if (null === $pkg = $installedRepo->findPackage($value['name'], '*')) {
+                continue;
+            }
+
+            $operations[] = new InformationOperation($pkg);
+        }
+
+        $recipes = $this->flex->fetchRecipes($operations, false);
+        ksort($recipes);
+
+        $outdatedRecipes = [];
+        foreach ($recipes as $name => $recipe) {
+            $lockRef = $symfonyLock->get($name)['recipe']['ref'] ?? null;
+
+            if (null !== $lockRef && $recipe->getRef() !== $lockRef && !$recipe->isAuto()) {
+                $outdatedRecipes[] = $name;
+            }
+        }
+
+        if (0 === \count($outdatedRecipes)) {
+            return null;
+        }
+
+        $question = 'Which outdated recipe would you like to update? (default: <info>0</info>)';
+
+        $choice = $io->select(
+            $question,
+            $outdatedRecipes,
+            0
+        );
+
+        return $outdatedRecipes[$choice];
+    }
+
+    private function isIndexClean(IOInterface $io): bool
+    {
+        $output = '';
+
+        $this->getProcessExecutor()->execute('git status --porcelain --untracked-files=no', $output, $this->rootDir);
+        if ('' !== trim($output)) {
+            return false;
+        }
+
+        return true;
+    }
+
+    private function getProcessExecutor(): ProcessExecutor
+    {
+        if (null === $this->processExecutor) {
+            $this->processExecutor = new ProcessExecutor($this->getIO());
+        }
+
+        return $this->processExecutor;
+    }
+}

vendor/symfony/flex/src/ComposerRepository.php

@@ -0,0 +1,58 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Repository\ComposerRepository as BaseComposerRepository;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ComposerRepository extends BaseComposerRepository
+{
+    private $providerFiles;
+
+    protected function loadProviderListings($data)
+    {
+        if (null !== $this->providerFiles) {
+            parent::loadProviderListings($data);
+
+            return;
+        }
+
+        $data = [$data];
+
+        while ($data) {
+            $this->providerFiles = [];
+            foreach ($data as $data) {
+                $this->loadProviderListings($data);
+            }
+
+            $loadingFiles = $this->providerFiles;
+            $this->providerFiles = null;
+            $data = [];
+            $this->rfs->download($loadingFiles, function (...$args) use (&$data) {
+                $data[] = $this->fetchFile(...$args);
+            });
+        }
+    }
+
+    protected function fetchFile($filename, $cacheKey = null, $sha256 = null, $storeLastModifiedTime = false)
+    {
+        if (null !== $this->providerFiles) {
+            $this->providerFiles[] = [$filename, $cacheKey, $sha256, $storeLastModifiedTime];
+
+            return [];
+        }
+
+        return parent::fetchFile($filename, $cacheKey, $sha256, $storeLastModifiedTime);
+    }
+}

vendor/symfony/flex/src/Configurator.php

@@ -0,0 +1,97 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Composer;
+use Composer\IO\IOInterface;
+use Symfony\Flex\Configurator\AbstractConfigurator;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Configurator
+{
+    private $composer;
+    private $io;
+    private $options;
+    private $configurators;
+    private $cache;
+
+    public function __construct(Composer $composer, IOInterface $io, Options $options)
+    {
+        $this->composer = $composer;
+        $this->io = $io;
+        $this->options = $options;
+        // ordered list of configurators
+        $this->configurators = [
+            'bundles' => Configurator\BundlesConfigurator::class,
+            'copy-from-recipe' => Configurator\CopyFromRecipeConfigurator::class,
+            'copy-from-package' => Configurator\CopyFromPackageConfigurator::class,
+            'env' => Configurator\EnvConfigurator::class,
+            'container' => Configurator\ContainerConfigurator::class,
+            'makefile' => Configurator\MakefileConfigurator::class,
+            'composer-scripts' => Configurator\ComposerScriptsConfigurator::class,
+            'gitignore' => Configurator\GitignoreConfigurator::class,
+            'dockerfile' => Configurator\DockerfileConfigurator::class,
+            'docker-compose' => Configurator\DockerComposeConfigurator::class,
+        ];
+    }
+
+    public function install(Recipe $recipe, Lock $lock, array $options = [])
+    {
+        $manifest = $recipe->getManifest();
+        foreach (array_keys($this->configurators) as $key) {
+            if (isset($manifest[$key])) {
+                $this->get($key)->configure($recipe, $manifest[$key], $lock, $options);
+            }
+        }
+    }
+
+    public function populateUpdate(RecipeUpdate $recipeUpdate): void
+    {
+        $originalManifest = $recipeUpdate->getOriginalRecipe()->getManifest();
+        $newManifest = $recipeUpdate->getNewRecipe()->getManifest();
+        foreach (array_keys($this->configurators) as $key) {
+            if (!isset($originalManifest[$key]) && !isset($newManifest[$key])) {
+                continue;
+            }
+
+            $this->get($key)->update($recipeUpdate, $originalManifest[$key] ?? [], $newManifest[$key] ?? []);
+        }
+    }
+
+    public function unconfigure(Recipe $recipe, Lock $lock)
+    {
+        $manifest = $recipe->getManifest();
+        foreach (array_keys($this->configurators) as $key) {
+            if (isset($manifest[$key])) {
+                $this->get($key)->unconfigure($recipe, $manifest[$key], $lock);
+            }
+        }
+    }
+
+    private function get($key): AbstractConfigurator
+    {
+        if (!isset($this->configurators[$key])) {
+            throw new \InvalidArgumentException(sprintf('Unknown configurator "%s".', $key));
+        }
+
+        if (isset($this->cache[$key])) {
+            return $this->cache[$key];
+        }
+
+        $class = $this->configurators[$key];
+
+        return $this->cache[$key] = new $class($this->composer, $this->io, $this->options);
+    }
+}

vendor/symfony/flex/src/Configurator/AbstractConfigurator.php

@@ -0,0 +1,131 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Composer\Composer;
+use Composer\IO\IOInterface;
+use Symfony\Flex\Lock;
+use Symfony\Flex\Options;
+use Symfony\Flex\Path;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class AbstractConfigurator
+{
+    protected $composer;
+    protected $io;
+    protected $options;
+    protected $path;
+
+    public function __construct(Composer $composer, IOInterface $io, Options $options)
+    {
+        $this->composer = $composer;
+        $this->io = $io;
+        $this->options = $options;
+        $this->path = new Path($options->get('root-dir'));
+    }
+
+    abstract public function configure(Recipe $recipe, $config, Lock $lock, array $options = []);
+
+    abstract public function unconfigure(Recipe $recipe, $config, Lock $lock);
+
+    abstract public function update(RecipeUpdate $recipeUpdate, array $originalConfig, array $newConfig): void;
+
+    protected function write($messages)
+    {
+        if (!\is_array($messages)) {
+            $messages = [$messages];
+        }
+        foreach ($messages as $i => $message) {
+            $messages[$i] = '    '.$message;
+        }
+        $this->io->writeError($messages, true, IOInterface::VERBOSE);
+    }
+
+    protected function isFileMarked(Recipe $recipe, string $file): bool
+    {
+        return is_file($file) && false !== strpos(file_get_contents($file), sprintf('###> %s ###', $recipe->getName()));
+    }
+
+    protected function markData(Recipe $recipe, string $data): string
+    {
+        return "\n".sprintf('###> %s ###%s%s%s###< %s ###%s', $recipe->getName(), "\n", rtrim($data, "\r\n"), "\n", $recipe->getName(), "\n");
+    }
+
+    protected function isFileXmlMarked(Recipe $recipe, string $file): bool
+    {
+        return is_file($file) && false !== strpos(file_get_contents($file), sprintf('###+ %s ###', $recipe->getName()));
+    }
+
+    protected function markXmlData(Recipe $recipe, string $data): string
+    {
+        return "\n".sprintf('        <!-- ###+ %s ### -->%s%s%s        <!-- ###- %s ### -->%s', $recipe->getName(), "\n", rtrim($data, "\r\n"), "\n", $recipe->getName(), "\n");
+    }
+
+    /**
+     * @return bool True if section was found and replaced
+     */
+    protected function updateData(string $file, string $data): bool
+    {
+        if (!file_exists($file)) {
+            return false;
+        }
+
+        $contents = file_get_contents($file);
+
+        $newContents = $this->updateDataString($contents, $data);
+        if (null === $newContents) {
+            return false;
+        }
+
+        file_put_contents($file, $newContents);
+
+        return true;
+    }
+
+    /**
+     * @return string|null returns the updated content if the section was found, null if not found
+     */
+    protected function updateDataString(string $contents, string $data): ?string
+    {
+        $pieces = explode("\n", trim($data));
+        $startMark = trim(reset($pieces));
+        $endMark = trim(end($pieces));
+
+        if (false === strpos($contents, $startMark) || false === strpos($contents, $endMark)) {
+            return null;
+        }
+
+        $pattern = '/'.preg_quote($startMark, '/').'.*?'.preg_quote($endMark, '/').'/s';
+
+        return preg_replace($pattern, trim($data), $contents);
+    }
+
+    protected function extractSection(Recipe $recipe, string $contents): ?string
+    {
+        $section = $this->markData($recipe, '----');
+
+        $pieces = explode("\n", trim($section));
+        $startMark = trim(reset($pieces));
+        $endMark = trim(end($pieces));
+
+        $pattern = '/'.preg_quote($startMark, '/').'.*?'.preg_quote($endMark, '/').'/s';
+
+        $matches = [];
+        preg_match($pattern, $contents, $matches);
+
+        return $matches[0] ?? null;
+    }
+}

vendor/symfony/flex/src/Configurator/BundlesConfigurator.php

@@ -0,0 +1,143 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class BundlesConfigurator extends AbstractConfigurator
+{
+    public function configure(Recipe $recipe, $bundles, Lock $lock, array $options = [])
+    {
+        $this->write('Enabling the package as a Symfony bundle');
+        $registered = $this->configureBundles($bundles);
+        $this->dump($this->getConfFile(), $registered);
+    }
+
+    public function unconfigure(Recipe $recipe, $bundles, Lock $lock)
+    {
+        $this->write('Disabling the Symfony bundle');
+        $file = $this->getConfFile();
+        if (!file_exists($file)) {
+            return;
+        }
+
+        $registered = $this->load($file);
+        foreach (array_keys($this->prepareBundles($bundles)) as $class) {
+            unset($registered[$class]);
+        }
+        $this->dump($file, $registered);
+    }
+
+    public function update(RecipeUpdate $recipeUpdate, array $originalConfig, array $newConfig): void
+    {
+        $originalBundles = $this->configureBundles($originalConfig);
+        $recipeUpdate->setOriginalFile(
+            $this->getLocalConfFile(),
+            $this->buildContents($originalBundles)
+        );
+
+        $newBundles = $this->configureBundles($newConfig);
+        $recipeUpdate->setNewFile(
+            $this->getLocalConfFile(),
+            $this->buildContents($newBundles)
+        );
+    }
+
+    private function configureBundles(array $bundles): array
+    {
+        $file = $this->getConfFile();
+        $registered = $this->load($file);
+        $classes = $this->prepareBundles($bundles);
+        if (isset($classes[$fwb = 'Symfony\Bundle\FrameworkBundle\FrameworkBundle'])) {
+            foreach ($classes[$fwb] as $env) {
+                $registered[$fwb][$env] = true;
+            }
+            unset($classes[$fwb]);
+        }
+        foreach ($classes as $class => $envs) {
+            // if the class already existed, clear so we can update the envs
+            if (isset($registered[$class])) {
+                $registered[$class] = [];
+            }
+            foreach ($envs as $env) {
+                $registered[$class][$env] = true;
+            }
+        }
+
+        return $registered;
+    }
+
+    private function prepareBundles(array $bundles): array
+    {
+        foreach ($bundles as $class => $envs) {
+            $bundles[ltrim($class, '\\')] = $envs;
+        }
+
+        return $bundles;
+    }
+
+    private function load(string $file): array
+    {
+        $bundles = file_exists($file) ? (require $file) : [];
+        if (!\is_array($bundles)) {
+            $bundles = [];
+        }
+
+        return $bundles;
+    }
+
+    private function dump(string $file, array $bundles)
+    {
+        $contents = $this->buildContents($bundles);
+
+        if (!is_dir(\dirname($file))) {
+            mkdir(\dirname($file), 0777, true);
+        }
+
+        file_put_contents($file, $contents);
+
+        if (\function_exists('opcache_invalidate')) {
+            opcache_invalidate($file);
+        }
+    }
+
+    private function buildContents(array $bundles): string
+    {
+        $contents = "<?php\n\nreturn [\n";
+        foreach ($bundles as $class => $envs) {
+            $contents .= "    $class::class => [";
+            foreach ($envs as $env => $value) {
+                $booleanValue = var_export($value, true);
+                $contents .= "'$env' => $booleanValue, ";
+            }
+            $contents = substr($contents, 0, -2)."],\n";
+        }
+        $contents .= "];\n";
+
+        return $contents;
+    }
+
+    private function getConfFile(): string
+    {
+        return $this->options->get('root-dir').'/'.$this->getLocalConfFile();
+    }
+
+    private function getLocalConfFile(): string
+    {
+        return $this->options->expandTargetDir('%CONFIG_DIR%/bundles.php');
+    }
+}

vendor/symfony/flex/src/Configurator/ComposerScriptsConfigurator.php

@@ -0,0 +1,75 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Composer\Factory;
+use Composer\Json\JsonFile;
+use Composer\Json\JsonManipulator;
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class ComposerScriptsConfigurator extends AbstractConfigurator
+{
+    public function configure(Recipe $recipe, $scripts, Lock $lock, array $options = [])
+    {
+        $json = new JsonFile(Factory::getComposerFile());
+
+        file_put_contents($json->getPath(), $this->configureScripts($scripts, $json));
+    }
+
+    public function unconfigure(Recipe $recipe, $scripts, Lock $lock)
+    {
+        $json = new JsonFile(Factory::getComposerFile());
+
+        $jsonContents = $json->read();
+        $autoScripts = $jsonContents['scripts']['auto-scripts'] ?? [];
+        foreach (array_keys($scripts) as $cmd) {
+            unset($autoScripts[$cmd]);
+        }
+
+        $manipulator = new JsonManipulator(file_get_contents($json->getPath()));
+        $manipulator->addSubNode('scripts', 'auto-scripts', $autoScripts);
+
+        file_put_contents($json->getPath(), $manipulator->getContents());
+    }
+
+    public function update(RecipeUpdate $recipeUpdate, array $originalConfig, array $newConfig): void
+    {
+        $json = new JsonFile(Factory::getComposerFile());
+        $jsonPath = ltrim(str_replace($recipeUpdate->getRootDir(), '', $json->getPath()), '/\\');
+
+        $recipeUpdate->setOriginalFile(
+            $jsonPath,
+            $this->configureScripts($originalConfig, $json)
+        );
+        $recipeUpdate->setNewFile(
+            $jsonPath,
+            $this->configureScripts($newConfig, $json)
+        );
+    }
+
+    private function configureScripts(array $scripts, JsonFile $json): string
+    {
+        $jsonContents = $json->read();
+        $autoScripts = $jsonContents['scripts']['auto-scripts'] ?? [];
+        $autoScripts = array_merge($autoScripts, $scripts);
+
+        $manipulator = new JsonManipulator(file_get_contents($json->getPath()));
+        $manipulator->addSubNode('scripts', 'auto-scripts', $autoScripts);
+
+        return $manipulator->getContents();
+    }
+}

vendor/symfony/flex/src/Configurator/ContainerConfigurator.php

@@ -0,0 +1,150 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class ContainerConfigurator extends AbstractConfigurator
+{
+    public function configure(Recipe $recipe, $parameters, Lock $lock, array $options = [])
+    {
+        $this->write('Setting parameters');
+        $contents = $this->configureParameters($parameters);
+
+        if (null !== $contents) {
+            file_put_contents($this->options->get('root-dir').'/'.$this->getServicesPath(), $contents);
+        }
+    }
+
+    public function unconfigure(Recipe $recipe, $parameters, Lock $lock)
+    {
+        $this->write('Unsetting parameters');
+        $target = $this->options->get('root-dir').'/'.$this->getServicesPath();
+        $lines = [];
+        foreach (file($target) as $line) {
+            if ($this->removeParameters(1, $parameters, $line)) {
+                continue;
+            }
+            $lines[] = $line;
+        }
+        file_put_contents($target, implode('', $lines));
+    }
+
+    public function update(RecipeUpdate $recipeUpdate, array $originalConfig, array $newConfig): void
+    {
+        if ($originalConfig) {
+            $recipeUpdate->setOriginalFile(
+                $this->getServicesPath(),
+                $this->configureParameters($originalConfig, true)
+            );
+        }
+
+        if ($newConfig) {
+            $recipeUpdate->setNewFile(
+                $this->getServicesPath(),
+                $this->configureParameters($newConfig, true)
+            );
+        }
+    }
+
+    private function configureParameters(array $parameters, bool $update = false): string
+    {
+        $target = $this->options->get('root-dir').'/'.$this->getServicesPath();
+        $endAt = 0;
+        $isParameters = false;
+        $lines = [];
+        foreach (file($target) as $i => $line) {
+            $lines[] = $line;
+            if (!$isParameters && !preg_match('/^parameters:/', $line)) {
+                continue;
+            }
+            if (!$isParameters) {
+                $isParameters = true;
+                continue;
+            }
+            if (!preg_match('/^\s+.*/', $line) && '' !== trim($line)) {
+                $endAt = $i - 1;
+                $isParameters = false;
+                continue;
+            }
+            foreach ($parameters as $key => $value) {
+                $matches = [];
+                if (preg_match(sprintf('/^\s+%s\:/', preg_quote($key, '/')), $line, $matches)) {
+                    if ($update) {
+                        $lines[$i] = substr($line, 0, \strlen($matches[0])).' '.str_replace("'", "''", $value)."\n";
+                    }
+
+                    unset($parameters[$key]);
+                }
+            }
+        }
+
+        if ($parameters) {
+            $parametersLines = [];
+            if (!$endAt) {
+                $parametersLines[] = "parameters:\n";
+            }
+            foreach ($parameters as $key => $value) {
+                if (\is_array($value)) {
+                    $parametersLines[] = sprintf("    %s:\n%s", $key, $this->dumpYaml(2, $value));
+                    continue;
+                }
+                $parametersLines[] = sprintf("    %s: '%s'%s", $key, str_replace("'", "''", $value), "\n");
+            }
+            if (!$endAt) {
+                $parametersLines[] = "\n";
+            }
+            array_splice($lines, $endAt, 0, $parametersLines);
+        }
+
+        return implode('', $lines);
+    }
+
+    private function removeParameters($level, $params, $line)
+    {
+        foreach ($params as $key => $value) {
+            if (\is_array($value) && $this->removeParameters($level + 1, $value, $line)) {
+                return true;
+            }
+            if (preg_match(sprintf('/^(\s{%d}|\t{%d})+%s\:/', 4 * $level, $level, preg_quote($key, '/')), $line)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private function dumpYaml($level, $array): string
+    {
+        $line = '';
+        foreach ($array as $key => $value) {
+            $line .= str_repeat('    ', $level);
+            if (!\is_array($value)) {
+                $line .= sprintf("%s: '%s'\n", $key, str_replace("'", "''", $value));
+                continue;
+            }
+            $line .= sprintf("%s:\n", $key).$this->dumpYaml($level + 1, $value);
+        }
+
+        return $line;
+    }
+
+    private function getServicesPath(): string
+    {
+        return $this->options->expandTargetDir('%CONFIG_DIR%/services.yaml');
+    }
+}

vendor/symfony/flex/src/Configurator/CopyFromPackageConfigurator.php

@@ -0,0 +1,169 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class CopyFromPackageConfigurator extends AbstractConfigurator
+{
+    public function configure(Recipe $recipe, $config, Lock $lock, array $options = [])
+    {
+        $this->write('Copying files from package');
+        $packageDir = $this->composer->getInstallationManager()->getInstallPath($recipe->getPackage());
+        $options = array_merge($this->options->toArray(), $options);
+
+        $files = $this->getFilesToCopy($config, $packageDir);
+        foreach ($files as $source => $target) {
+            $this->copyFile($source, $target, $options);
+        }
+    }
+
+    public function unconfigure(Recipe $recipe, $config, Lock $lock)
+    {
+        $this->write('Removing files from package');
+        $packageDir = $this->composer->getInstallationManager()->getInstallPath($recipe->getPackage());
+        $this->removeFiles($config, $packageDir, $this->options->get('root-dir'));
+    }
+
+    public function update(RecipeUpdate $recipeUpdate, array $originalConfig, array $newConfig): void
+    {
+        $packageDir = $this->composer->getInstallationManager()->getInstallPath($recipeUpdate->getNewRecipe()->getPackage());
+        foreach ($originalConfig as $source => $target) {
+            if (isset($newConfig[$source])) {
+                // path is in both, we cannot update
+                $recipeUpdate->addCopyFromPackagePath(
+                    $packageDir.'/'.$source,
+                    $this->options->expandTargetDir($target)
+                );
+
+                unset($newConfig[$source]);
+            }
+
+            // if any paths were removed from the recipe, we'll keep them
+        }
+
+        // any remaining files are new, and we can copy them
+        foreach ($this->getFilesToCopy($newConfig, $packageDir) as $source => $target) {
+            if (!file_exists($source)) {
+                throw new \LogicException(sprintf('File "%s" does not exist!', $source));
+            }
+
+            $recipeUpdate->setNewFile($target, file_get_contents($source));
+        }
+    }
+
+    private function getFilesToCopy(array $manifest, string $from): array
+    {
+        $files = [];
+        foreach ($manifest as $source => $target) {
+            $target = $this->options->expandTargetDir($target);
+            if ('/' === substr($source, -1)) {
+                $files = array_merge($files, $this->getFilesForDir($this->path->concatenate([$from, $source]), $this->path->concatenate([$target])));
+
+                continue;
+            }
+
+            $files[$this->path->concatenate([$from, $source])] = $target;
+        }
+
+        return $files;
+    }
+
+    private function removeFiles(array $manifest, string $from, string $to)
+    {
+        foreach ($manifest as $source => $target) {
+            $target = $this->options->expandTargetDir($target);
+            if ('/' === substr($source, -1)) {
+                $this->removeFilesFromDir($this->path->concatenate([$from, $source]), $this->path->concatenate([$to, $target]));
+            } else {
+                $targetPath = $this->path->concatenate([$to, $target]);
+                if (file_exists($targetPath)) {
+                    @unlink($targetPath);
+                    $this->write(sprintf('  Removed <fg=green>"%s"</>', $this->path->relativize($targetPath)));
+                }
+            }
+        }
+    }
+
+    private function getFilesForDir(string $source, string $target): array
+    {
+        $iterator = $this->createSourceIterator($source, \RecursiveIteratorIterator::SELF_FIRST);
+        $files = [];
+        foreach ($iterator as $item) {
+            $targetPath = $this->path->concatenate([$target, $iterator->getSubPathName()]);
+
+            $files[(string) $item] = $targetPath;
+        }
+
+        return $files;
+    }
+
+    /**
+     * @param string $source The absolute path to the source file
+     * @param string $target The relative (to root dir) path to the target
+     */
+    public function copyFile(string $source, string $target, array $options)
+    {
+        $target = $this->options->get('root-dir').'/'.$target;
+        if (is_dir($source)) {
+            // directory will be created when a file is copied to it
+            return;
+        }
+
+        $overwrite = $options['force'] ?? false;
+        if (!$this->options->shouldWriteFile($target, $overwrite)) {
+            return;
+        }
+
+        if (!file_exists($source)) {
+            throw new \LogicException(sprintf('File "%s" does not exist!', $source));
+        }
+
+        if (!file_exists(\dirname($target))) {
+            mkdir(\dirname($target), 0777, true);
+            $this->write(sprintf('  Created <fg=green>"%s"</>', $this->path->relativize(\dirname($target))));
+        }
+
+        file_put_contents($target, $this->options->expandTargetDir(file_get_contents($source)));
+        @chmod($target, fileperms($target) | (fileperms($source) & 0111));
+        $this->write(sprintf('  Created <fg=green>"%s"</>', $this->path->relativize($target)));
+    }
+
+    private function removeFilesFromDir(string $source, string $target)
+    {
+        if (!is_dir($source)) {
+            return;
+        }
+        $iterator = $this->createSourceIterator($source, \RecursiveIteratorIterator::CHILD_FIRST);
+        foreach ($iterator as $item) {
+            $targetPath = $this->path->concatenate([$target, $iterator->getSubPathName()]);
+            if ($item->isDir()) {
+                // that removes the dir only if it is empty
+                @rmdir($targetPath);
+                $this->write(sprintf('  Removed directory <fg=green>"%s"</>', $this->path->relativize($targetPath)));
+            } else {
+                @unlink($targetPath);
+                $this->write(sprintf('  Removed <fg=green>"%s"</>', $this->path->relativize($targetPath)));
+            }
+        }
+    }
+
+    private function createSourceIterator(string $source, int $mode): \RecursiveIteratorIterator
+    {
+        return new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($source, \RecursiveDirectoryIterator::SKIP_DOTS), $mode);
+    }
+}

vendor/symfony/flex/src/Configurator/CopyFromRecipeConfigurator.php

@@ -0,0 +1,175 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class CopyFromRecipeConfigurator extends AbstractConfigurator
+{
+    public function configure(Recipe $recipe, $config, Lock $lock, array $options = [])
+    {
+        $this->write('Copying files from recipe');
+        $options = array_merge($this->options->toArray(), $options);
+
+        $lock->add($recipe->getName(), ['files' => $this->copyFiles($config, $recipe->getFiles(), $options)]);
+    }
+
+    public function unconfigure(Recipe $recipe, $config, Lock $lock)
+    {
+        $this->write('Removing files from recipe');
+        $this->removeFiles($config, $this->getRemovableFilesFromRecipeAndLock($recipe, $lock), $this->options->get('root-dir'));
+    }
+
+    public function update(RecipeUpdate $recipeUpdate, array $originalConfig, array $newConfig): void
+    {
+        foreach ($recipeUpdate->getOriginalRecipe()->getFiles() as $filename => $data) {
+            $recipeUpdate->setOriginalFile($filename, $data['contents']);
+        }
+
+        $files = [];
+        foreach ($recipeUpdate->getNewRecipe()->getFiles() as $filename => $data) {
+            $recipeUpdate->setNewFile($filename, $data['contents']);
+
+            $files[] = $this->getLocalFilePath($recipeUpdate->getRootDir(), $filename);
+        }
+        $recipeUpdate->getLock()->add($recipeUpdate->getPackageName(), ['files' => $files]);
+    }
+
+    private function getRemovableFilesFromRecipeAndLock(Recipe $recipe, Lock $lock): array
+    {
+        $lockedFiles = array_unique(
+            array_reduce(
+                array_column($lock->all(), 'files'),
+                function (array $carry, array $package) {
+                    return array_merge($carry, $package);
+                },
+                []
+            )
+        );
+
+        $removableFiles = $recipe->getFiles();
+
+        $lockedFiles = array_map('realpath', $lockedFiles);
+
+        // Compare file paths by their real path to abstract OS differences
+        foreach (array_keys($removableFiles) as $file) {
+            if (\in_array(realpath($file), $lockedFiles)) {
+                unset($removableFiles[$file]);
+            }
+        }
+
+        return $removableFiles;
+    }
+
+    private function copyFiles(array $manifest, array $files, array $options): array
+    {
+        $copiedFiles = [];
+        $to = $options['root-dir'] ?? '.';
+
+        foreach ($manifest as $source => $target) {
+            $target = $this->options->expandTargetDir($target);
+            if ('/' === substr($source, -1)) {
+                $copiedFiles = array_merge(
+                    $copiedFiles,
+                    $this->copyDir($source, $this->path->concatenate([$to, $target]), $files, $options)
+                );
+            } else {
+                $copiedFiles[] = $this->copyFile($this->path->concatenate([$to, $target]), $files[$source]['contents'], $files[$source]['executable'], $options);
+            }
+        }
+
+        return $copiedFiles;
+    }
+
+    private function copyDir(string $source, string $target, array $files, array $options): array
+    {
+        $copiedFiles = [];
+        foreach ($files as $file => $data) {
+            if (0 === strpos($file, $source)) {
+                $file = $this->path->concatenate([$target, substr($file, \strlen($source))]);
+                $copiedFiles[] = $this->copyFile($file, $data['contents'], $data['executable'], $options);
+            }
+        }
+
+        return $copiedFiles;
+    }
+
+    private function copyFile(string $to, string $contents, bool $executable, array $options): string
+    {
+        $overwrite = $options['force'] ?? false;
+        $basePath = $options['root-dir'] ?? '.';
+        $copiedFile = $this->getLocalFilePath($basePath, $to);
+
+        if (!$this->options->shouldWriteFile($to, $overwrite)) {
+            return $copiedFile;
+        }
+
+        if (!is_dir(\dirname($to))) {
+            mkdir(\dirname($to), 0777, true);
+        }
+
+        file_put_contents($to, $this->options->expandTargetDir($contents));
+        if ($executable) {
+            @chmod($to, fileperms($to) | 0111);
+        }
+
+        $this->write(sprintf('  Created <fg=green>"%s"</>', $this->path->relativize($to)));
+
+        return $copiedFile;
+    }
+
+    private function removeFiles(array $manifest, array $files, string $to)
+    {
+        foreach ($manifest as $source => $target) {
+            $target = $this->options->expandTargetDir($target);
+
+            if ('.git' === $target) {
+                // never remove the main Git directory, even if it was created by a recipe
+                continue;
+            }
+
+            if ('/' === substr($source, -1)) {
+                foreach (array_keys($files) as $file) {
+                    if (0 === strpos($file, $source)) {
+                        $this->removeFile($this->path->concatenate([$to, $target, substr($file, \strlen($source))]));
+                    }
+                }
+            } else {
+                $this->removeFile($this->path->concatenate([$to, $target]));
+            }
+        }
+    }
+
+    private function removeFile(string $to)
+    {
+        if (!file_exists($to)) {
+            return;
+        }
+
+        @unlink($to);
+        $this->write(sprintf('  Removed <fg=green>"%s"</>', $this->path->relativize($to)));
+
+        if (0 === \count(glob(\dirname($to).'/*', \GLOB_NOSORT))) {
+            @rmdir(\dirname($to));
+        }
+    }
+
+    private function getLocalFilePath(string $basePath, $destination): string
+    {
+        return str_replace($basePath.\DIRECTORY_SEPARATOR, '', $destination);
+    }
+}

vendor/symfony/flex/src/Configurator/DockerComposeConfigurator.php

@@ -0,0 +1,384 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Composer\Composer;
+use Composer\Factory;
+use Composer\IO\IOInterface;
+use Composer\Json\JsonFile;
+use Composer\Json\JsonManipulator;
+use Symfony\Component\Filesystem\Filesystem;
+use Symfony\Flex\Lock;
+use Symfony\Flex\Options;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * Adds services and volumes to docker-compose.yml file.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class DockerComposeConfigurator extends AbstractConfigurator
+{
+    private $filesystem;
+
+    public static $configureDockerRecipes = null;
+
+    public function __construct(Composer $composer, IOInterface $io, Options $options)
+    {
+        parent::__construct($composer, $io, $options);
+
+        $this->filesystem = new Filesystem();
+    }
+
+    public function configure(Recipe $recipe, $config, Lock $lock, array $options = [])
+    {
+        if (!self::shouldConfigureDockerRecipe($this->composer, $this->io, $recipe)) {
+            return;
+        }
+
+        $this->configureDockerCompose($recipe, $config, $options['force'] ?? false);
+
+        $this->write('Docker Compose definitions have been modified. Please run "docker-compose up --build" again to apply the changes.');
+    }
+
+    public function unconfigure(Recipe $recipe, $config, Lock $lock)
+    {
+        $rootDir = $this->options->get('root-dir');
+        foreach ($this->normalizeConfig($config) as $file => $extra) {
+            if (null === $dockerComposeFile = $this->findDockerComposeFile($rootDir, $file)) {
+                continue;
+            }
+
+            $name = $recipe->getName();
+            // Remove recipe and add break line
+            $contents = preg_replace(sprintf('{%s+###> %s ###.*?###< %s ###%s+}s', "\n", $name, $name, "\n"), \PHP_EOL.\PHP_EOL, file_get_contents($dockerComposeFile), -1, $count);
+            if (!$count) {
+                return;
+            }
+
+            foreach ($extra as $key => $value) {
+                if (0 === preg_match(sprintf('{^%s:[ \t\r\n]*([ \t]+\w|#)}m', $key), $contents, $matches)) {
+                    $contents = preg_replace(sprintf('{\n?^%s:[ \t\r\n]*}sm', $key), '', $contents, -1, $count);
+                }
+            }
+
+            $this->write(sprintf('Removing Docker Compose entries from "%s"', $dockerComposeFile));
+            file_put_contents($dockerComposeFile, ltrim($contents, "\n"));
+        }
+
+        $this->write('Docker Compose definitions have been modified. Please run "docker-compose up" again to apply the changes.');
+    }
+
+    public function update(RecipeUpdate $recipeUpdate, array $originalConfig, array $newConfig): void
+    {
+        if (!self::shouldConfigureDockerRecipe($this->composer, $this->io, $recipeUpdate->getNewRecipe())) {
+            return;
+        }
+
+        $recipeUpdate->addOriginalFiles(
+            $this->getContentsAfterApplyingRecipe($recipeUpdate->getRootDir(), $recipeUpdate->getOriginalRecipe(), $originalConfig)
+        );
+
+        $recipeUpdate->addNewFiles(
+            $this->getContentsAfterApplyingRecipe($recipeUpdate->getRootDir(), $recipeUpdate->getNewRecipe(), $newConfig)
+        );
+    }
+
+    public static function shouldConfigureDockerRecipe(Composer $composer, IOInterface $io, Recipe $recipe): bool
+    {
+        if (null !== self::$configureDockerRecipes) {
+            return self::$configureDockerRecipes;
+        }
+
+        if (null !== $dockerPreference = $composer->getPackage()->getExtra()['symfony']['docker'] ?? null) {
+            self::$configureDockerRecipes = $dockerPreference;
+
+            return self::$configureDockerRecipes;
+        }
+
+        if ('install' !== $recipe->getJob()) {
+            // default to not configuring
+            return false;
+        }
+
+        if (!isset($_SERVER['SYMFONY_DOCKER'])) {
+            $answer = self::askDockerSupport($io, $recipe);
+        } elseif (filter_var($_SERVER['SYMFONY_DOCKER'], \FILTER_VALIDATE_BOOLEAN)) {
+            $answer = 'p';
+        } else {
+            $answer = 'x';
+        }
+
+        if ('n' === $answer) {
+            self::$configureDockerRecipes = false;
+
+            return self::$configureDockerRecipes;
+        }
+        if ('y' === $answer) {
+            self::$configureDockerRecipes = true;
+
+            return self::$configureDockerRecipes;
+        }
+
+        // yes or no permanently
+        self::$configureDockerRecipes = 'p' === $answer;
+        $json = new JsonFile(Factory::getComposerFile());
+        $manipulator = new JsonManipulator(file_get_contents($json->getPath()));
+        $manipulator->addSubNode('extra', 'symfony.docker', self::$configureDockerRecipes);
+        file_put_contents($json->getPath(), $manipulator->getContents());
+
+        return self::$configureDockerRecipes;
+    }
+
+    /**
+     * Normalizes the config and return the name of the main Docker Compose file if applicable.
+     */
+    private function normalizeConfig(array $config): array
+    {
+        foreach ($config as $val) {
+            // Support for the short syntax recipe syntax that modifies docker-compose.yml only
+            return isset($val[0]) ? ['docker-compose.yml' => $config] : $config;
+        }
+
+        return $config;
+    }
+
+    /**
+     * Finds the Docker Compose file according to these rules: https://docs.docker.com/compose/reference/envvars/#compose_file.
+     */
+    private function findDockerComposeFile(string $rootDir, string $file): ?string
+    {
+        if (isset($_SERVER['COMPOSE_FILE'])) {
+            $separator = $_SERVER['COMPOSE_PATH_SEPARATOR'] ?? ('\\' === \DIRECTORY_SEPARATOR ? ';' : ':');
+
+            $files = explode($separator, $_SERVER['COMPOSE_FILE']);
+            foreach ($files as $f) {
+                if ($file !== basename($f)) {
+                    continue;
+                }
+
+                if (!$this->filesystem->isAbsolutePath($f)) {
+                    $f = realpath(sprintf('%s/%s', $rootDir, $f));
+                }
+
+                if ($this->filesystem->exists($f)) {
+                    return $f;
+                }
+            }
+        }
+
+        // COMPOSE_FILE not set, or doesn't contain the file we're looking for
+        $dir = $rootDir;
+        do {
+            // Test with the ".yaml" extension if the file doesn't end up with ".yml".
+            if (
+                $this->filesystem->exists($dockerComposeFile = sprintf('%s/%s', $dir, $file)) ||
+                $this->filesystem->exists($dockerComposeFile = substr($dockerComposeFile, 0, -2).'aml')
+            ) {
+                return $dockerComposeFile;
+            }
+
+            $previousDir = $dir;
+            $dir = \dirname($dir);
+        } while ($dir !== $previousDir);
+
+        return null;
+    }
+
+    private function parse($level, $indent, $services): string
+    {
+        $line = '';
+        foreach ($services as $key => $value) {
+            $line .= str_repeat(' ', $indent * $level);
+            if (!\is_array($value)) {
+                if (\is_string($key)) {
+                    $line .= sprintf('%s:', $key);
+                }
+                $line .= sprintf("%s\n", $value);
+                continue;
+            }
+            $line .= sprintf("%s:\n", $key).$this->parse($level + 1, $indent, $value);
+        }
+
+        return $line;
+    }
+
+    private function configureDockerCompose(Recipe $recipe, array $config, bool $update): void
+    {
+        $rootDir = $this->options->get('root-dir');
+        foreach ($this->normalizeConfig($config) as $file => $extra) {
+            $dockerComposeFile = $this->findDockerComposeFile($rootDir, $file);
+            if (null === $dockerComposeFile) {
+                $dockerComposeFile = $rootDir.'/'.$file;
+                file_put_contents($dockerComposeFile, "version: '3'\n");
+                $this->write(sprintf('  Created <fg=green>"%s"</>', $file));
+            }
+
+            if (!$update && $this->isFileMarked($recipe, $dockerComposeFile)) {
+                continue;
+            }
+
+            $this->write(sprintf('Adding Docker Compose definitions to "%s"', $dockerComposeFile));
+
+            $offset = 2;
+            $node = null;
+            $endAt = [];
+            $startAt = [];
+            $lines = [];
+            $nodesLines = [];
+            foreach (file($dockerComposeFile) as $i => $line) {
+                $lines[] = $line;
+                $ltrimedLine = ltrim($line, ' ');
+                if (null !== $node) {
+                    $nodesLines[$node][$i] = $line;
+                }
+
+                // Skip blank lines and comments
+                if (('' !== $ltrimedLine && 0 === strpos($ltrimedLine, '#')) || '' === trim($line)) {
+                    continue;
+                }
+
+                // Extract Docker Compose keys (usually "services" and "volumes")
+                if (!preg_match('/^[\'"]?([a-zA-Z0-9]+)[\'"]?:\s*$/', $line, $matches)) {
+                    // Detect indentation to use
+                    $offestLine = \strlen($line) - \strlen($ltrimedLine);
+                    if ($offset > $offestLine && 0 !== $offestLine) {
+                        $offset = $offestLine;
+                    }
+                    continue;
+                }
+
+                // Keep end in memory (check break line on previous line)
+                $endAt[$node] = '' !== trim($lines[$i - 1]) ? $i : $i - 1;
+                $node = $matches[1];
+                if (!isset($nodesLines[$node])) {
+                    $nodesLines[$node] = [];
+                }
+                if (!isset($startAt[$node])) {
+                    // the section contents starts at the next line
+                    $startAt[$node] = $i + 1;
+                }
+            }
+            $endAt[$node] = \count($lines) + 1;
+
+            foreach ($extra as $key => $value) {
+                if (isset($endAt[$key])) {
+                    $data = $this->markData($recipe, $this->parse(1, $offset, $value));
+                    $updatedContents = $this->updateDataString(implode('', $nodesLines[$key]), $data);
+                    if (null === $updatedContents) {
+                        // not an update: just add to section
+                        array_splice($lines, $endAt[$key], 0, $data);
+
+                        continue;
+                    }
+
+                    $originalEndAt = $endAt[$key];
+                    $length = $endAt[$key] - $startAt[$key];
+                    array_splice($lines, $startAt[$key], $length, ltrim($updatedContents, "\n"));
+
+                    // reset any start/end positions after this to the new positions
+                    foreach ($startAt as $sectionKey => $at) {
+                        if ($at > $originalEndAt) {
+                            $startAt[$sectionKey] = $at - $length - 1;
+                        }
+                    }
+                    foreach ($endAt as $sectionKey => $at) {
+                        if ($at > $originalEndAt) {
+                            $endAt[$sectionKey] = $at - $length;
+                        }
+                    }
+
+                    continue;
+                }
+
+                $lines[] = sprintf("\n%s:", $key);
+                $lines[] = $this->markData($recipe, $this->parse(1, $offset, $value));
+            }
+
+            file_put_contents($dockerComposeFile, implode('', $lines));
+        }
+    }
+
+    private function getContentsAfterApplyingRecipe(string $rootDir, Recipe $recipe, array $config): array
+    {
+        if (0 === \count($config)) {
+            return [];
+        }
+
+        $files = array_map(function ($file) use ($rootDir) {
+            return $this->findDockerComposeFile($rootDir, $file);
+        }, array_keys($config));
+
+        $originalContents = [];
+        foreach ($files as $file) {
+            $originalContents[$file] = file_exists($file) ? file_get_contents($file) : null;
+        }
+
+        $this->configureDockerCompose(
+            $recipe,
+            $config,
+            true
+        );
+
+        $updatedContents = [];
+        foreach ($files as $file) {
+            $localPath = ltrim(str_replace($rootDir, '', $file), '/\\');
+            $updatedContents[$localPath] = file_exists($file) ? file_get_contents($file) : null;
+        }
+
+        foreach ($originalContents as $file => $contents) {
+            if (null === $contents) {
+                if (file_exists($file)) {
+                    unlink($file);
+                }
+            } else {
+                file_put_contents($file, $contents);
+            }
+        }
+
+        return $updatedContents;
+    }
+
+    private static function askDockerSupport(IOInterface $io, Recipe $recipe): string
+    {
+        $warning = $io->isInteractive() ? 'WARNING' : 'IGNORING';
+        $io->writeError(sprintf('  - <warning> %s </> %s', $warning, $recipe->getFormattedOrigin()));
+        $question = '    The recipe for this package contains some Docker configuration.
+
+    This may create/update <comment>docker-compose.yml</comment> or update <comment>Dockerfile</comment> (if it exists).
+
+    Do you want to include Docker configuration from recipes?
+    [<comment>y</>] Yes
+    [<comment>n</>] No
+    [<comment>p</>] Yes permanently, never ask again for this project
+    [<comment>x</>] No permanently, never ask again for this project
+    (defaults to <comment>y</>): ';
+
+        return $io->askAndValidate(
+            $question,
+            function ($value) {
+                if (null === $value) {
+                    return 'y';
+                }
+                $value = strtolower($value[0]);
+                if (!\in_array($value, ['y', 'n', 'p', 'x'], true)) {
+                    throw new \InvalidArgumentException('Invalid choice.');
+                }
+
+                return $value;
+            },
+            null,
+            'y'
+        );
+    }
+}

vendor/symfony/flex/src/Configurator/DockerfileConfigurator.php

@@ -0,0 +1,125 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * Adds commands to a Dockerfile.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class DockerfileConfigurator extends AbstractConfigurator
+{
+    public function configure(Recipe $recipe, $config, Lock $lock, array $options = [])
+    {
+        if (!DockerComposeConfigurator::shouldConfigureDockerRecipe($this->composer, $this->io, $recipe)) {
+            return;
+        }
+
+        $this->configureDockerfile($recipe, $config, $options['force'] ?? false);
+    }
+
+    public function unconfigure(Recipe $recipe, $config, Lock $lock)
+    {
+        if (!file_exists($dockerfile = $this->options->get('root-dir').'/Dockerfile')) {
+            return;
+        }
+
+        $name = $recipe->getName();
+        $contents = preg_replace(sprintf('{%s+###> %s ###.*?###< %s ###%s+}s', "\n", $name, $name, "\n"), "\n", file_get_contents($dockerfile), -1, $count);
+        if (!$count) {
+            return;
+        }
+
+        $this->write('Removing Dockerfile entries');
+        file_put_contents($dockerfile, ltrim($contents, "\n"));
+    }
+
+    public function update(RecipeUpdate $recipeUpdate, array $originalConfig, array $newConfig): void
+    {
+        if (!DockerComposeConfigurator::shouldConfigureDockerRecipe($this->composer, $this->io, $recipeUpdate->getNewRecipe())) {
+            return;
+        }
+
+        $recipeUpdate->setOriginalFile(
+            'Dockerfile',
+            $this->getContentsAfterApplyingRecipe($recipeUpdate->getOriginalRecipe(), $originalConfig)
+        );
+
+        $recipeUpdate->setNewFile(
+            'Dockerfile',
+            $this->getContentsAfterApplyingRecipe($recipeUpdate->getNewRecipe(), $newConfig)
+        );
+    }
+
+    private function configureDockerfile(Recipe $recipe, array $config, bool $update, bool $writeOutput = true): void
+    {
+        $dockerfile = $this->options->get('root-dir').'/Dockerfile';
+        if (!file_exists($dockerfile) || (!$update && $this->isFileMarked($recipe, $dockerfile))) {
+            return;
+        }
+
+        if ($writeOutput) {
+            $this->write('Adding Dockerfile entries');
+        }
+
+        $data = ltrim($this->markData($recipe, implode("\n", $config)), "\n");
+        if ($this->updateData($dockerfile, $data)) {
+            // done! Existing spot updated
+            return;
+        }
+
+        $lines = [];
+        foreach (file($dockerfile) as $line) {
+            $lines[] = $line;
+            if (!preg_match('/^###> recipes ###$/', $line)) {
+                continue;
+            }
+
+            $lines[] = $data;
+        }
+
+        file_put_contents($dockerfile, implode('', $lines));
+    }
+
+    private function getContentsAfterApplyingRecipe(Recipe $recipe, array $config): ?string
+    {
+        if (0 === \count($config)) {
+            return null;
+        }
+
+        $dockerfile = $this->options->get('root-dir').'/Dockerfile';
+        $originalContents = file_exists($dockerfile) ? file_get_contents($dockerfile) : null;
+
+        $this->configureDockerfile(
+            $recipe,
+            $config,
+            true,
+            false
+        );
+
+        $updatedContents = file_exists($dockerfile) ? file_get_contents($dockerfile) : null;
+
+        if (null === $originalContents) {
+            if (file_exists($dockerfile)) {
+                unlink($dockerfile);
+            }
+        } else {
+            file_put_contents($dockerfile, $originalContents);
+        }
+
+        return $updatedContents;
+    }
+}

vendor/symfony/flex/src/Configurator/EnvConfigurator.php

@@ -0,0 +1,277 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class EnvConfigurator extends AbstractConfigurator
+{
+    public function configure(Recipe $recipe, $vars, Lock $lock, array $options = [])
+    {
+        $this->write('Adding environment variable defaults');
+
+        $this->configureEnvDist($recipe, $vars, $options['force'] ?? false);
+        if (!file_exists($this->options->get('root-dir').'/'.($this->options->get('runtime')['dotenv_path'] ?? '.env').'.test')) {
+            $this->configurePhpUnit($recipe, $vars, $options['force'] ?? false);
+        }
+    }
+
+    public function unconfigure(Recipe $recipe, $vars, Lock $lock)
+    {
+        $this->unconfigureEnvFiles($recipe, $vars);
+        $this->unconfigurePhpUnit($recipe, $vars);
+    }
+
+    public function update(RecipeUpdate $recipeUpdate, array $originalConfig, array $newConfig): void
+    {
+        $recipeUpdate->addOriginalFiles(
+            $this->getContentsAfterApplyingRecipe($recipeUpdate->getRootDir(), $recipeUpdate->getOriginalRecipe(), $originalConfig)
+        );
+
+        $recipeUpdate->addNewFiles(
+            $this->getContentsAfterApplyingRecipe($recipeUpdate->getRootDir(), $recipeUpdate->getNewRecipe(), $newConfig)
+        );
+    }
+
+    private function configureEnvDist(Recipe $recipe, $vars, bool $update)
+    {
+        $dotenvPath = $this->options->get('runtime')['dotenv_path'] ?? '.env';
+
+        foreach ([$dotenvPath.'.dist', $dotenvPath] as $file) {
+            $env = $this->options->get('root-dir').'/'.$file;
+            if (!is_file($env)) {
+                continue;
+            }
+
+            if (!$update && $this->isFileMarked($recipe, $env)) {
+                continue;
+            }
+
+            $data = '';
+            foreach ($vars as $key => $value) {
+                $existingValue = $update ? $this->findExistingValue($key, $env, $recipe) : null;
+                $value = $this->evaluateValue($value, $existingValue);
+                if ('#' === $key[0] && is_numeric(substr($key, 1))) {
+                    if ('' === $value) {
+                        $data .= "#\n";
+                    } else {
+                        $data .= '# '.$value."\n";
+                    }
+
+                    continue;
+                }
+
+                $value = $this->options->expandTargetDir($value);
+                if (false !== strpbrk($value, " \t\n&!\"")) {
+                    $value = '"'.str_replace(['\\', '"', "\t", "\n"], ['\\\\', '\\"', '\t', '\n'], $value).'"';
+                }
+                $data .= "$key=$value\n";
+            }
+            $data = $this->markData($recipe, $data);
+
+            if (!$this->updateData($env, $data)) {
+                file_put_contents($env, $data, \FILE_APPEND);
+            }
+        }
+    }
+
+    private function configurePhpUnit(Recipe $recipe, $vars, bool $update)
+    {
+        foreach (['phpunit.xml.dist', 'phpunit.xml'] as $file) {
+            $phpunit = $this->options->get('root-dir').'/'.$file;
+            if (!is_file($phpunit)) {
+                continue;
+            }
+
+            if (!$update && $this->isFileXmlMarked($recipe, $phpunit)) {
+                continue;
+            }
+
+            $data = '';
+            foreach ($vars as $key => $value) {
+                $value = $this->evaluateValue($value);
+                if ('#' === $key[0]) {
+                    if (is_numeric(substr($key, 1))) {
+                        $doc = new \DOMDocument();
+                        $data .= '        '.$doc->saveXML($doc->createComment(' '.$value.' '))."\n";
+                    } else {
+                        $value = $this->options->expandTargetDir($value);
+                        $doc = new \DOMDocument();
+                        $fragment = $doc->createElement('env');
+                        $fragment->setAttribute('name', substr($key, 1));
+                        $fragment->setAttribute('value', $value);
+                        $data .= '        '.str_replace(['<', '/>'], ['<!-- ', ' -->'], $doc->saveXML($fragment))."\n";
+                    }
+                } else {
+                    $value = $this->options->expandTargetDir($value);
+                    $doc = new \DOMDocument();
+                    $fragment = $doc->createElement('env');
+                    $fragment->setAttribute('name', $key);
+                    $fragment->setAttribute('value', $value);
+                    $data .= '        '.$doc->saveXML($fragment)."\n";
+                }
+            }
+            $data = $this->markXmlData($recipe, $data);
+
+            if (!$this->updateData($phpunit, $data)) {
+                file_put_contents($phpunit, preg_replace('{^(\s+</php>)}m', $data.'$1', file_get_contents($phpunit)));
+            }
+        }
+    }
+
+    private function unconfigureEnvFiles(Recipe $recipe, $vars)
+    {
+        $dotenvPath = $this->options->get('runtime')['dotenv_path'] ?? '.env';
+
+        foreach ([$dotenvPath, $dotenvPath.'.dist'] as $file) {
+            $env = $this->options->get('root-dir').'/'.$file;
+            if (!file_exists($env)) {
+                continue;
+            }
+
+            $contents = preg_replace(sprintf('{%s*###> %s ###.*###< %s ###%s+}s', "\n", $recipe->getName(), $recipe->getName(), "\n"), "\n", file_get_contents($env), -1, $count);
+            if (!$count) {
+                continue;
+            }
+
+            $this->write(sprintf('Removing environment variables from %s', $file));
+            file_put_contents($env, $contents);
+        }
+    }
+
+    private function unconfigurePhpUnit(Recipe $recipe, $vars)
+    {
+        foreach (['phpunit.xml.dist', 'phpunit.xml'] as $file) {
+            $phpunit = $this->options->get('root-dir').'/'.$file;
+            if (!is_file($phpunit)) {
+                continue;
+            }
+
+            $contents = preg_replace(sprintf('{%s*\s+<!-- ###\+ %s ### -->.*<!-- ###- %s ### -->%s+}s', "\n", $recipe->getName(), $recipe->getName(), "\n"), "\n", file_get_contents($phpunit), -1, $count);
+            if (!$count) {
+                continue;
+            }
+
+            $this->write(sprintf('Removing environment variables from %s', $file));
+            file_put_contents($phpunit, $contents);
+        }
+    }
+
+    /**
+     * Evaluates expressions like %generate(secret)%.
+     *
+     * If $originalValue is passed, and the value contains an expression.
+     * the $originalValue is used.
+     */
+    private function evaluateValue($value, string $originalValue = null)
+    {
+        if ('%generate(secret)%' === $value) {
+            if (null !== $originalValue) {
+                return $originalValue;
+            }
+
+            return $this->generateRandomBytes();
+        }
+        if (preg_match('~^%generate\(secret,\s*([0-9]+)\)%$~', $value, $matches)) {
+            if (null !== $originalValue) {
+                return $originalValue;
+            }
+
+            return $this->generateRandomBytes($matches[1]);
+        }
+
+        return $value;
+    }
+
+    private function generateRandomBytes($length = 16)
+    {
+        return bin2hex(random_bytes($length));
+    }
+
+    private function getContentsAfterApplyingRecipe(string $rootDir, Recipe $recipe, array $vars): array
+    {
+        $dotenvPath = $this->options->get('runtime')['dotenv_path'] ?? '.env';
+        $files = [$dotenvPath, $dotenvPath.'.dist', 'phpunit.xml.dist', 'phpunit.xml'];
+
+        if (0 === \count($vars)) {
+            return array_fill_keys($files, null);
+        }
+
+        $originalContents = [];
+        foreach ($files as $file) {
+            $originalContents[$file] = file_exists($rootDir.'/'.$file) ? file_get_contents($rootDir.'/'.$file) : null;
+        }
+
+        $this->configureEnvDist(
+            $recipe,
+            $vars,
+            true
+        );
+
+        if (!file_exists($rootDir.'/'.$dotenvPath.'.test')) {
+            $this->configurePhpUnit(
+                $recipe,
+                $vars,
+                true
+            );
+        }
+
+        $updatedContents = [];
+        foreach ($files as $file) {
+            $updatedContents[$file] = file_exists($rootDir.'/'.$file) ? file_get_contents($rootDir.'/'.$file) : null;
+        }
+
+        foreach ($originalContents as $file => $contents) {
+            if (null === $contents) {
+                if (file_exists($rootDir.'/'.$file)) {
+                    unlink($rootDir.'/'.$file);
+                }
+            } else {
+                file_put_contents($rootDir.'/'.$file, $contents);
+            }
+        }
+
+        return $updatedContents;
+    }
+
+    /**
+     * Attempts to find the existing value of an environment variable.
+     */
+    private function findExistingValue(string $var, string $filename, Recipe $recipe): ?string
+    {
+        if (!file_exists($filename)) {
+            return null;
+        }
+
+        $contents = file_get_contents($filename);
+        $section = $this->extractSection($recipe, $contents);
+        if (!$section) {
+            return null;
+        }
+
+        $lines = explode("\n", $section);
+        foreach ($lines as $line) {
+            if (0 !== strpos($line, sprintf('%s=', $var))) {
+                continue;
+            }
+
+            return trim(substr($line, \strlen($var) + 1));
+        }
+
+        return null;
+    }
+}

vendor/symfony/flex/src/Configurator/GitignoreConfigurator.php

@@ -0,0 +1,105 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class GitignoreConfigurator extends AbstractConfigurator
+{
+    public function configure(Recipe $recipe, $vars, Lock $lock, array $options = [])
+    {
+        $this->write('Adding entries to .gitignore');
+
+        $this->configureGitignore($recipe, $vars, $options['force'] ?? false);
+    }
+
+    public function unconfigure(Recipe $recipe, $vars, Lock $lock)
+    {
+        $file = $this->options->get('root-dir').'/.gitignore';
+        if (!file_exists($file)) {
+            return;
+        }
+
+        $contents = preg_replace(sprintf('{%s*###> %s ###.*###< %s ###%s+}s', "\n", $recipe->getName(), $recipe->getName(), "\n"), "\n", file_get_contents($file), -1, $count);
+        if (!$count) {
+            return;
+        }
+
+        $this->write('Removing entries in .gitignore');
+        file_put_contents($file, ltrim($contents, "\r\n"));
+    }
+
+    public function update(RecipeUpdate $recipeUpdate, array $originalConfig, array $newConfig): void
+    {
+        $recipeUpdate->setOriginalFile(
+            '.gitignore',
+            $this->getContentsAfterApplyingRecipe($recipeUpdate->getRootDir(), $recipeUpdate->getOriginalRecipe(), $originalConfig)
+        );
+
+        $recipeUpdate->setNewFile(
+            '.gitignore',
+            $this->getContentsAfterApplyingRecipe($recipeUpdate->getRootDir(), $recipeUpdate->getNewRecipe(), $newConfig)
+        );
+    }
+
+    private function configureGitignore(Recipe $recipe, array $vars, bool $update)
+    {
+        $gitignore = $this->options->get('root-dir').'/.gitignore';
+        if (!$update && $this->isFileMarked($recipe, $gitignore)) {
+            return;
+        }
+
+        $data = '';
+        foreach ($vars as $value) {
+            $value = $this->options->expandTargetDir($value);
+            $data .= "$value\n";
+        }
+        $data = "\n".ltrim($this->markData($recipe, $data), "\r\n");
+
+        if (!$this->updateData($gitignore, $data)) {
+            file_put_contents($gitignore, $data, \FILE_APPEND);
+        }
+    }
+
+    private function getContentsAfterApplyingRecipe(string $rootDir, Recipe $recipe, $vars): ?string
+    {
+        if (0 === \count($vars)) {
+            return null;
+        }
+
+        $file = $rootDir.'/.gitignore';
+        $originalContents = file_exists($file) ? file_get_contents($file) : null;
+
+        $this->configureGitignore(
+            $recipe,
+            $vars,
+            true
+        );
+
+        $updatedContents = file_exists($file) ? file_get_contents($file) : null;
+
+        if (null === $originalContents) {
+            if (file_exists($file)) {
+                unlink($file);
+            }
+        } else {
+            file_put_contents($file, $originalContents);
+        }
+
+        return $updatedContents;
+    }
+}

vendor/symfony/flex/src/Configurator/MakefileConfigurator.php

@@ -0,0 +1,124 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+use Symfony\Flex\Update\RecipeUpdate;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class MakefileConfigurator extends AbstractConfigurator
+{
+    public function configure(Recipe $recipe, $definitions, Lock $lock, array $options = [])
+    {
+        $this->write('Adding Makefile entries');
+
+        $this->configureMakefile($recipe, $definitions, $options['force'] ?? false);
+    }
+
+    public function unconfigure(Recipe $recipe, $vars, Lock $lock)
+    {
+        if (!file_exists($makefile = $this->options->get('root-dir').'/Makefile')) {
+            return;
+        }
+
+        $contents = preg_replace(sprintf('{%s*###> %s ###.*###< %s ###%s+}s', "\n", $recipe->getName(), $recipe->getName(), "\n"), "\n", file_get_contents($makefile), -1, $count);
+        if (!$count) {
+            return;
+        }
+
+        $this->write(sprintf('Removing Makefile entries from %s', $makefile));
+        if (!trim($contents)) {
+            @unlink($makefile);
+        } else {
+            file_put_contents($makefile, ltrim($contents, "\r\n"));
+        }
+    }
+
+    public function update(RecipeUpdate $recipeUpdate, array $originalConfig, array $newConfig): void
+    {
+        $recipeUpdate->setOriginalFile(
+            'Makefile',
+            $this->getContentsAfterApplyingRecipe($recipeUpdate->getRootDir(), $recipeUpdate->getOriginalRecipe(), $originalConfig)
+        );
+
+        $recipeUpdate->setNewFile(
+            'Makefile',
+            $this->getContentsAfterApplyingRecipe($recipeUpdate->getRootDir(), $recipeUpdate->getNewRecipe(), $newConfig)
+        );
+    }
+
+    private function configureMakefile(Recipe $recipe, array $definitions, bool $update)
+    {
+        $makefile = $this->options->get('root-dir').'/Makefile';
+        if (!$update && $this->isFileMarked($recipe, $makefile)) {
+            return;
+        }
+
+        $data = $this->options->expandTargetDir(implode("\n", $definitions));
+        $data = $this->markData($recipe, $data);
+        $data = "\n".ltrim($data, "\r\n");
+
+        if (!file_exists($makefile)) {
+            $envKey = $this->options->get('runtime')['env_var_name'] ?? 'APP_ENV';
+            $dotenvPath = $this->options->get('runtime')['dotenv_path'] ?? '.env';
+            file_put_contents(
+                $this->options->get('root-dir').'/Makefile',
+                <<<EOF
+ifndef {$envKey}
+	include {$dotenvPath}
+endif
+
+.DEFAULT_GOAL := help
+.PHONY: help
+help:
+	@awk 'BEGIN {FS = ":.*?## "}; /^[a-zA-Z-]+:.*?## .*$$/ {printf "\033[32m%-15s\033[0m %s\\n", $$1, $$2}' Makefile | sort
+
+EOF
+            );
+        }
+
+        if (!$this->updateData($makefile, $data)) {
+            file_put_contents($makefile, $data, \FILE_APPEND);
+        }
+    }
+
+    private function getContentsAfterApplyingRecipe(string $rootDir, Recipe $recipe, array $definitions): ?string
+    {
+        if (0 === \count($definitions)) {
+            return null;
+        }
+
+        $file = $rootDir.'/Makefile';
+        $originalContents = file_exists($file) ? file_get_contents($file) : null;
+
+        $this->configureMakefile(
+            $recipe,
+            $definitions,
+            true
+        );
+
+        $updatedContents = file_exists($file) ? file_get_contents($file) : null;
+
+        if (null === $originalContents) {
+            if (file_exists($file)) {
+                unlink($file);
+            }
+        } else {
+            file_put_contents($file, $originalContents);
+        }
+
+        return $updatedContents;
+    }
+}

vendor/symfony/flex/src/CurlDownloader.php

@@ -0,0 +1,216 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Downloader\TransportException;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class CurlDownloader
+{
+    private $multiHandle;
+    private $shareHandle;
+    private $jobs = [];
+    private $exceptions = [];
+
+    private static $options = [
+        'http' => [
+            'method' => \CURLOPT_CUSTOMREQUEST,
+            'content' => \CURLOPT_POSTFIELDS,
+        ],
+        'ssl' => [
+            'cafile' => \CURLOPT_CAINFO,
+            'capath' => \CURLOPT_CAPATH,
+        ],
+    ];
+
+    private static $timeInfo = [
+        'total_time' => true,
+        'namelookup_time' => true,
+        'connect_time' => true,
+        'pretransfer_time' => true,
+        'starttransfer_time' => true,
+        'redirect_time' => true,
+    ];
+
+    public function __construct()
+    {
+        $this->multiHandle = $mh = curl_multi_init();
+        curl_multi_setopt($mh, \CURLMOPT_PIPELINING, /*CURLPIPE_MULTIPLEX*/ 2);
+        if (\defined('CURLMOPT_MAX_HOST_CONNECTIONS')) {
+            curl_multi_setopt($mh, \CURLMOPT_MAX_HOST_CONNECTIONS, 8);
+        }
+
+        $this->shareHandle = $sh = curl_share_init();
+        curl_share_setopt($sh, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_COOKIE);
+        curl_share_setopt($sh, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_DNS);
+        curl_share_setopt($sh, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_SSL_SESSION);
+    }
+
+    public function get($origin, $url, $context, $file)
+    {
+        $params = stream_context_get_params($context);
+
+        $ch = curl_init();
+        $hd = fopen('php://temp/maxmemory:32768', 'w+b');
+        if ($file && !$fd = @fopen($file.'~', 'w+b')) {
+            $file = null;
+        }
+        if (!$file) {
+            $fd = @fopen('php://temp/maxmemory:524288', 'w+b');
+        }
+        $headers = array_diff($params['options']['http']['header'], ['Connection: close']);
+
+        if (!isset($params['options']['http']['protocol_version'])) {
+            curl_setopt($ch, \CURLOPT_HTTP_VERSION, \CURL_HTTP_VERSION_1_0);
+        } else {
+            $headers[] = 'Connection: keep-alive';
+            if (0 === strpos($url, 'https://') && \defined('CURL_VERSION_HTTP2') && \defined('CURL_HTTP_VERSION_2_0') && (\CURL_VERSION_HTTP2 & curl_version()['features'])) {
+                curl_setopt($ch, \CURLOPT_HTTP_VERSION, \CURL_HTTP_VERSION_2_0);
+            }
+        }
+
+        curl_setopt($ch, \CURLOPT_URL, $url);
+        curl_setopt($ch, \CURLOPT_HTTPHEADER, $headers);
+        curl_setopt($ch, \CURLOPT_FOLLOWLOCATION, true);
+        curl_setopt($ch, \CURLOPT_DNS_USE_GLOBAL_CACHE, false);
+        curl_setopt($ch, \CURLOPT_WRITEHEADER, $hd);
+        curl_setopt($ch, \CURLOPT_FILE, $fd);
+        curl_setopt($ch, \CURLOPT_SHARE, $this->shareHandle);
+
+        foreach (self::$options as $type => $options) {
+            foreach ($options as $name => $curlopt) {
+                if (isset($params['options'][$type][$name])) {
+                    curl_setopt($ch, $curlopt, $params['options'][$type][$name]);
+                }
+            }
+        }
+
+        $progress = array_diff_key(curl_getinfo($ch), self::$timeInfo);
+        $this->jobs[(int) $ch] = [
+            'progress' => $progress,
+            'ch' => $ch,
+            'callback' => $params['notification'],
+            'file' => $file,
+            'fd' => $fd,
+        ];
+
+        curl_multi_add_handle($this->multiHandle, $ch);
+        $params['notification'](\STREAM_NOTIFY_RESOLVE, \STREAM_NOTIFY_SEVERITY_INFO, '', 0, 0, 0, false);
+        $active = true;
+
+        try {
+            while ($active && isset($this->jobs[(int) $ch])) {
+                curl_multi_exec($this->multiHandle, $active);
+                curl_multi_select($this->multiHandle);
+
+                while ($progress = curl_multi_info_read($this->multiHandle)) {
+                    if (!isset($this->jobs[$i = (int) $h = $progress['handle']])) {
+                        continue;
+                    }
+                    $progress = array_diff_key(curl_getinfo($h), self::$timeInfo);
+                    $job = $this->jobs[$i];
+                    unset($this->jobs[$i]);
+                    curl_multi_remove_handle($this->multiHandle, $h);
+                    try {
+                        $this->onProgress($h, $job['callback'], $progress, $job['progress']);
+
+                        if ('' !== curl_error($h)) {
+                            throw new TransportException(curl_error($h));
+                        }
+                        if ($job['file'] && \CURLE_OK === curl_errno($h) && !isset($this->exceptions[$i])) {
+                            fclose($job['fd']);
+                            rename($job['file'].'~', $job['file']);
+                        }
+                    } catch (TransportException $e) {
+                        $this->exceptions[$i] = $e;
+                    }
+                }
+
+                foreach ($this->jobs as $i => $h) {
+                    if (!isset($this->jobs[$i])) {
+                        continue;
+                    }
+                    $h = $this->jobs[$i]['ch'];
+                    $progress = array_diff_key(curl_getinfo($h), self::$timeInfo);
+
+                    if ($this->jobs[$i]['progress'] !== $progress) {
+                        $previousProgress = $this->jobs[$i]['progress'];
+                        $this->jobs[$i]['progress'] = $progress;
+                        try {
+                            $this->onProgress($h, $this->jobs[$i]['callback'], $progress, $previousProgress);
+                        } catch (TransportException $e) {
+                            unset($this->jobs[$i]);
+                            curl_multi_remove_handle($this->multiHandle, $h);
+                            $this->exceptions[$i] = $e;
+                        }
+                    }
+                }
+            }
+
+            if ('' !== curl_error($ch) || \CURLE_OK !== curl_errno($ch)) {
+                $this->exceptions[(int) $ch] = new TransportException(curl_error($ch), curl_getinfo($ch, \CURLINFO_HTTP_CODE) ?: 0);
+            }
+            if (isset($this->exceptions[(int) $ch])) {
+                throw $this->exceptions[(int) $ch];
+            }
+        } finally {
+            if ($file && !isset($this->exceptions[(int) $ch])) {
+                $fd = fopen($file, 'rb');
+            }
+            $progress = array_diff_key(curl_getinfo($ch), self::$timeInfo);
+            $this->finishProgress($ch, $params['notification'], $progress);
+            unset($this->jobs[(int) $ch], $this->exceptions[(int) $ch]);
+            curl_multi_remove_handle($this->multiHandle, $ch);
+            curl_close($ch);
+
+            rewind($hd);
+            $headers = explode("\r\n", rtrim(stream_get_contents($hd)));
+            fclose($hd);
+
+            rewind($fd);
+            $contents = stream_get_contents($fd);
+            fclose($fd);
+        }
+
+        return [$headers, $contents];
+    }
+
+    private function onProgress($ch, callable $notify, array $progress, array $previousProgress)
+    {
+        if (300 <= $progress['http_code'] && $progress['http_code'] < 400 || 0 > $progress['download_content_length']) {
+            return;
+        }
+
+        if (!$previousProgress['http_code'] && $progress['http_code'] && $progress['http_code'] < 200 || 400 <= $progress['http_code']) {
+            $code = 403 === $progress['http_code'] ? \STREAM_NOTIFY_AUTH_RESULT : \STREAM_NOTIFY_FAILURE;
+            $notify($code, \STREAM_NOTIFY_SEVERITY_ERR, curl_error($ch), $progress['http_code'], 0, 0, false);
+        }
+
+        if ($previousProgress['download_content_length'] < $progress['download_content_length']) {
+            $notify(\STREAM_NOTIFY_FILE_SIZE_IS, \STREAM_NOTIFY_SEVERITY_INFO, '', 0, 0, (int) $progress['download_content_length'], false);
+        }
+
+        if ($previousProgress['size_download'] < $progress['size_download']) {
+            $notify(\STREAM_NOTIFY_PROGRESS, \STREAM_NOTIFY_SEVERITY_INFO, '', 0, (int) $progress['size_download'], (int) $progress['download_content_length'], false);
+        }
+    }
+
+    private function finishProgress($ch, callable $notify, array $progress)
+    {
+        if ($progress['download_content_length'] < 0) {
+            $notify(\STREAM_NOTIFY_FILE_SIZE_IS, \STREAM_NOTIFY_SEVERITY_INFO, '', 0, 0, (int) $progress['size_download'], false);
+            $notify(\STREAM_NOTIFY_PROGRESS, \STREAM_NOTIFY_SEVERITY_INFO, '', 0, (int) $progress['size_download'], (int) $progress['size_download'], false);
+        }
+    }
+}

vendor/symfony/flex/src/Downloader.php

@@ -0,0 +1,494 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Cache as ComposerCache;
+use Composer\Composer;
+use Composer\DependencyResolver\Operation\OperationInterface;
+use Composer\DependencyResolver\Operation\UninstallOperation;
+use Composer\DependencyResolver\Operation\UpdateOperation;
+use Composer\IO\IOInterface;
+use Composer\Json\JsonFile;
+use Composer\Util\Http\Response as ComposerResponse;
+use Composer\Util\HttpDownloader;
+use Composer\Util\Loop;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class Downloader
+{
+    private const DEFAULT_ENDPOINTS = [
+        'https://raw.githubusercontent.com/symfony/recipes/flex/main/index.json',
+        'https://raw.githubusercontent.com/symfony/recipes-contrib/flex/main/index.json',
+    ];
+    private const MAX_LENGTH = 1000;
+
+    private static $versions;
+    private static $aliases;
+
+    private $io;
+    private $sess;
+    private $cache;
+
+    /** @var HttpDownloader|ParallelDownloader */
+    private $rfs;
+    private $degradedMode = false;
+    private $endpoints;
+    private $index;
+    private $conflicts;
+    private $legacyEndpoint;
+    private $caFile;
+    private $enabled = true;
+    private $composer;
+
+    public function __construct(Composer $composer, IoInterface $io, $rfs)
+    {
+        if (getenv('SYMFONY_CAFILE')) {
+            $this->caFile = getenv('SYMFONY_CAFILE');
+        }
+
+        if (null === $endpoint = $composer->getPackage()->getExtra()['symfony']['endpoint'] ?? null) {
+            $this->endpoints = self::DEFAULT_ENDPOINTS;
+        } elseif (\is_array($endpoint) || false !== strpos($endpoint, '.json') || 'flex://defaults' === $endpoint) {
+            $this->endpoints = array_values((array) $endpoint);
+            if (\is_string($endpoint) && false !== strpos($endpoint, '.json')) {
+                $this->endpoints[] = 'flex://defaults';
+            }
+        } else {
+            $this->legacyEndpoint = rtrim($endpoint, '/');
+        }
+
+        if (false === $endpoint = getenv('SYMFONY_ENDPOINT')) {
+            // no-op
+        } elseif (false !== strpos($endpoint, '.json') || 'flex://defaults' === $endpoint) {
+            $this->endpoints ?? $this->endpoints = self::DEFAULT_ENDPOINTS;
+            array_unshift($this->endpoints, $endpoint);
+            $this->legacyEndpoint = null;
+        } else {
+            $this->endpoints = null;
+            $this->legacyEndpoint = rtrim($endpoint, '/');
+        }
+
+        if (null !== $this->endpoints) {
+            if (false !== $i = array_search('flex://defaults', $this->endpoints, true)) {
+                array_splice($this->endpoints, $i, 1, self::DEFAULT_ENDPOINTS);
+            }
+
+            $this->endpoints = array_fill_keys($this->endpoints, []);
+        }
+
+        $this->io = $io;
+        $config = $composer->getConfig();
+        $this->rfs = $rfs;
+        $this->cache = new ComposerCache($io, $config->get('cache-repo-dir').'/flex');
+        $this->sess = bin2hex(random_bytes(16));
+        $this->composer = $composer;
+    }
+
+    public function getSessionId(): string
+    {
+        return $this->sess;
+    }
+
+    public function setFlexId(string $id = null)
+    {
+        // No-op to support downgrading to v1.12.x
+    }
+
+    public function isEnabled()
+    {
+        return $this->enabled;
+    }
+
+    public function disable()
+    {
+        $this->enabled = false;
+    }
+
+    public function getVersions()
+    {
+        $this->initialize();
+
+        return self::$versions ?? self::$versions = current($this->get([$this->legacyEndpoint.'/versions.json']));
+    }
+
+    public function getAliases()
+    {
+        $this->initialize();
+
+        return self::$aliases ?? self::$aliases = current($this->get([$this->legacyEndpoint.'/aliases.json']));
+    }
+
+    /**
+     * Downloads recipes.
+     *
+     * @param OperationInterface[] $operations
+     */
+    public function getRecipes(array $operations): array
+    {
+        $this->initialize();
+
+        if ($this->conflicts) {
+            $lockedRepository = $this->composer->getLocker()->getLockedRepository();
+            foreach ($this->conflicts as $conflicts) {
+                foreach ($conflicts as $package => $versions) {
+                    foreach ($versions as $version => $conflicts) {
+                        foreach ($conflicts as $conflictingPackage => $constraint) {
+                            if ($lockedRepository->findPackage($conflictingPackage, $constraint)) {
+                                unset($this->index[$package][$version]);
+                            }
+                        }
+                    }
+                }
+            }
+            $this->conflicts = [];
+        }
+
+        $data = [];
+        $urls = [];
+        $chunk = '';
+        $recipeRef = null;
+        foreach ($operations as $operation) {
+            $o = 'i';
+            if ($operation instanceof UpdateOperation) {
+                $package = $operation->getTargetPackage();
+                $o = 'u';
+            } else {
+                $package = $operation->getPackage();
+                if ($operation instanceof UninstallOperation) {
+                    $o = 'r';
+                }
+
+                if ($operation instanceof InformationOperation) {
+                    $recipeRef = $operation->getRecipeRef();
+                }
+            }
+
+            $version = $package->getPrettyVersion();
+            if ($operation instanceof InformationOperation && $operation->getVersion()) {
+                $version = $operation->getVersion();
+            }
+            if (0 === strpos($version, 'dev-') && isset($package->getExtra()['branch-alias'])) {
+                $branchAliases = $package->getExtra()['branch-alias'];
+                if (
+                    (isset($branchAliases[$version]) && $alias = $branchAliases[$version]) ||
+                    (isset($branchAliases['dev-main']) && $alias = $branchAliases['dev-main']) ||
+                    (isset($branchAliases['dev-trunk']) && $alias = $branchAliases['dev-trunk']) ||
+                    (isset($branchAliases['dev-develop']) && $alias = $branchAliases['dev-develop']) ||
+                    (isset($branchAliases['dev-default']) && $alias = $branchAliases['dev-default']) ||
+                    (isset($branchAliases['dev-latest']) && $alias = $branchAliases['dev-latest']) ||
+                    (isset($branchAliases['dev-next']) && $alias = $branchAliases['dev-next']) ||
+                    (isset($branchAliases['dev-current']) && $alias = $branchAliases['dev-current']) ||
+                    (isset($branchAliases['dev-support']) && $alias = $branchAliases['dev-support']) ||
+                    (isset($branchAliases['dev-tip']) && $alias = $branchAliases['dev-tip']) ||
+                    (isset($branchAliases['dev-master']) && $alias = $branchAliases['dev-master'])
+                ) {
+                    $version = $alias;
+                }
+            }
+
+            if ($recipeVersions = $this->index[$package->getName()] ?? null) {
+                $version = explode('.', preg_replace('/^dev-|^v|\.x-dev$|-dev$/', '', $version));
+                $version = $version[0].'.'.($version[1] ?? '9999999');
+
+                foreach (array_reverse($recipeVersions) as $v => $endpoint) {
+                    if (version_compare($version, $v, '<')) {
+                        continue;
+                    }
+
+                    $data['locks'][$package->getName()]['version'] = $version;
+                    $data['locks'][$package->getName()]['recipe']['version'] = $v;
+                    $links = $this->endpoints[$endpoint]['_links'];
+
+                    if (null !== $recipeRef && isset($links['archived_recipes_template'])) {
+                        if (isset($links['archived_recipes_template_relative'])) {
+                            $links['archived_recipes_template'] = preg_replace('{[^/\?]*+(?=\?|$)}', $links['archived_recipes_template_relative'], $endpoint, 1);
+                        }
+
+                        $urls[] = strtr($links['archived_recipes_template'], [
+                            '{package_dotted}' => str_replace('/', '.', $package->getName()),
+                            '{ref}' => $recipeRef,
+                        ]);
+
+                        break;
+                    }
+
+                    if (isset($links['recipes_template_relative'])) {
+                        $links['recipes_template'] = preg_replace('{[^/\?]*+(?=\?|$)}', $links['recipes_template_relative'], $endpoint, 1);
+                    }
+
+                    $urls[] = strtr($links['recipe_template'], [
+                        '{package_dotted}' => str_replace('/', '.', $package->getName()),
+                        '{package}' => $package->getName(),
+                        '{version}' => $v,
+                    ]);
+
+                    break;
+                }
+
+                continue;
+            }
+
+            if (\is_array($recipeVersions)) {
+                $data['conflicts'][$package->getName()] = true;
+            }
+
+            if (null !== $this->endpoints) {
+                $data['locks'][$package->getName()]['version'] = $version;
+                continue;
+            }
+
+            // FIXME: Multi name with getNames()
+            $name = str_replace('/', ',', $package->getName());
+            $path = sprintf('%s,%s%s', $name, $o, $version);
+            if ($date = $package->getReleaseDate()) {
+                $path .= ','.$date->format('U');
+            }
+            if (\strlen($chunk) + \strlen($path) > self::MAX_LENGTH) {
+                $urls[] = $this->legacyEndpoint.'/p/'.$chunk;
+                $chunk = $path;
+            } elseif ($chunk) {
+                $chunk .= ';'.$path;
+            } else {
+                $chunk = $path;
+            }
+        }
+        if ($chunk) {
+            $urls[] = $this->legacyEndpoint.'/p/'.$chunk;
+        }
+
+        if (null === $this->endpoints) {
+            foreach ($this->get($urls, true) as $body) {
+                foreach ($body['manifests'] ?? [] as $name => $manifest) {
+                    $data['manifests'][$name] = $manifest;
+                }
+                foreach ($body['locks'] ?? [] as $name => $lock) {
+                    $data['locks'][$name] = $lock;
+                }
+            }
+        } else {
+            foreach ($this->get($urls, true) as $body) {
+                foreach ($body['manifests'] ?? [] as $name => $manifest) {
+                    if (null === $version = $data['locks'][$name]['recipe']['version'] ?? null) {
+                        continue;
+                    }
+                    $endpoint = $this->endpoints[$this->index[$name][$version]];
+
+                    $data['locks'][$name]['recipe'] = [
+                        'repo' => $endpoint['_links']['repository'],
+                        'branch' => $endpoint['branch'],
+                        'version' => $version,
+                        'ref' => $manifest['ref'],
+                    ];
+
+                    foreach ($manifest['files'] ?? [] as $i => $file) {
+                        $manifest['files'][$i]['contents'] = \is_array($file['contents']) ? implode("\n", $file['contents']) : base64_decode($file['contents']);
+                    }
+
+                    $data['manifests'][$name] = $manifest + [
+                        'repository' => $endpoint['_links']['repository'],
+                        'package' => $name,
+                        'version' => $version,
+                        'origin' => strtr($endpoint['_links']['origin_template'], [
+                            '{package}' => $name,
+                            '{version}' => $version,
+                        ]),
+                        'is_contrib' => $endpoint['is_contrib'] ?? false,
+                    ];
+                }
+            }
+        }
+
+        return $data;
+    }
+
+    /**
+     * Used to "hide" a recipe version so that the next most-recent will be returned.
+     *
+     * This is used when resolving "conflicts".
+     */
+    public function removeRecipeFromIndex(string $packageName, string $version)
+    {
+        unset($this->index[$packageName][$version]);
+    }
+
+    /**
+     * Fetches and decodes JSON HTTP response bodies.
+     */
+    private function get(array $urls, bool $isRecipe = false, int $try = 3): array
+    {
+        $responses = [];
+        $retries = [];
+        $options = [];
+
+        foreach ($urls as $url) {
+            $cacheKey = self::generateCacheKey($url);
+            $headers = [];
+
+            if (preg_match('{^https?://api\.github\.com/}', $url)) {
+                $headers[] = 'Accept: application/vnd.github.v3.raw';
+            } elseif (preg_match('{^https?://raw\.githubusercontent\.com/}', $url) && $this->io->hasAuthentication('github.com')) {
+                $auth = $this->io->getAuthentication('github.com');
+                if ('x-oauth-basic' === $auth['password']) {
+                    $headers[] = 'Authorization: token '.$auth['username'];
+                }
+            } elseif ($this->legacyEndpoint) {
+                $headers[] = 'Package-Session: '.$this->sess;
+            }
+
+            if ($contents = $this->cache->read($cacheKey)) {
+                $cachedResponse = Response::fromJson(json_decode($contents, true));
+                if ($lastModified = $cachedResponse->getHeader('last-modified')) {
+                    $headers[] = 'If-Modified-Since: '.$lastModified;
+                }
+                if ($eTag = $cachedResponse->getHeader('etag')) {
+                    $headers[] = 'If-None-Match: '.$eTag;
+                }
+                $responses[$url] = $cachedResponse->getBody();
+            }
+
+            $options[$url] = $this->getOptions($headers);
+        }
+
+        if ($this->rfs instanceof HttpDownloader) {
+            $loop = new Loop($this->rfs);
+            $jobs = [];
+            foreach ($urls as $url) {
+                $jobs[] = $this->rfs->add($url, $options[$url])->then(function (ComposerResponse $response) use ($url, &$responses) {
+                    if (200 === $response->getStatusCode()) {
+                        $cacheKey = self::generateCacheKey($url);
+                        $responses[$url] = $this->parseJson($response->getBody(), $url, $cacheKey, $response->getHeaders())->getBody();
+                    }
+                }, function (\Exception $e) use ($url, &$retries) {
+                    $retries[] = [$url, $e];
+                });
+            }
+            $loop->wait($jobs);
+        } else {
+            foreach ($urls as $i => $url) {
+                $urls[$i] = [$url];
+            }
+            $this->rfs->download($urls, function ($url) use ($options, &$responses, &$retries, &$error) {
+                try {
+                    $cacheKey = self::generateCacheKey($url);
+                    $origin = method_exists($this->rfs, 'getOrigin') ? $this->rfs::getOrigin($url) : parse_url($url, \PHP_URL_HOST);
+                    $json = $this->rfs->getContents($origin, $url, false, $options[$url]);
+                    if (200 === $this->rfs->findStatusCode($this->rfs->getLastHeaders())) {
+                        $responses[$url] = $this->parseJson($json, $url, $cacheKey, $this->rfs->getLastHeaders())->getBody();
+                    }
+                } catch (\Exception $e) {
+                    $retries[] = [$url, $e];
+                }
+            });
+        }
+
+        if (!$retries) {
+            return $responses;
+        }
+
+        if (0 < --$try) {
+            usleep(100000);
+
+            return $this->get(array_column($retries, 0), $isRecipe, $try) + $responses;
+        }
+
+        foreach ($retries as [$url, $e]) {
+            if (isset($responses[$url])) {
+                $this->switchToDegradedMode($e, $url);
+            } elseif ($isRecipe) {
+                $this->io->writeError('<warning>Failed to download recipe: '.$e->getMessage().'</>');
+            } else {
+                throw $e;
+            }
+        }
+
+        return $responses;
+    }
+
+    private function parseJson(string $json, string $url, string $cacheKey, array $lastHeaders): Response
+    {
+        $data = JsonFile::parseJson($json, $url);
+        if (!empty($data['warning'])) {
+            $this->io->writeError('<warning>Warning from '.$url.': '.$data['warning'].'</>');
+        }
+        if (!empty($data['info'])) {
+            $this->io->writeError('<info>Info from '.$url.': '.$data['info'].'</>');
+        }
+
+        $response = new Response($data, $lastHeaders);
+        if ($cacheKey && ($response->getHeader('last-modified') || $response->getHeader('etag'))) {
+            $this->cache->write($cacheKey, json_encode($response));
+        }
+
+        return $response;
+    }
+
+    private function switchToDegradedMode(\Exception $e, string $url)
+    {
+        if (!$this->degradedMode) {
+            $this->io->writeError('<warning>'.$e->getMessage().'</>');
+            $this->io->writeError('<warning>'.$url.' could not be fully loaded, package information was loaded from the local cache and may be out of date</>');
+        }
+        $this->degradedMode = true;
+    }
+
+    private function getOptions(array $headers): array
+    {
+        $options = ['http' => ['header' => $headers]];
+
+        if (null !== $this->caFile) {
+            $options['ssl']['cafile'] = $this->caFile;
+        }
+
+        return $options;
+    }
+
+    private function initialize()
+    {
+        if (null !== $this->index || null === $this->endpoints) {
+            $this->index ?? $this->index = [];
+
+            return;
+        }
+
+        $indexes = self::$versions = self::$aliases = [];
+
+        foreach ($this->get(array_keys($this->endpoints)) as $endpoint => $index) {
+            $indexes[$endpoint] = $index;
+        }
+
+        foreach ($this->endpoints as $endpoint => $config) {
+            $config = $indexes[$endpoint] ?? [];
+            foreach ($config['recipes'] ?? [] as $package => $versions) {
+                $this->index[$package] = $this->index[$package] ?? array_fill_keys($versions, $endpoint);
+            }
+            $this->conflicts[] = $config['recipe-conflicts'] ?? [];
+            self::$versions += $config['versions'] ?? [];
+            self::$aliases += $config['aliases'] ?? [];
+            unset($config['recipes'], $config['recipe-conflicts'], $config['versions'], $config['aliases']);
+            $this->endpoints[$endpoint] = $config;
+        }
+    }
+
+    private static function generateCacheKey(string $url): string
+    {
+        $url = preg_replace('{^https://api.github.com/repos/([^/]++/[^/]++)/contents/}', '$1/', $url);
+        $url = preg_replace('{^https://raw.githubusercontent.com/([^/]++/[^/]++)/}', '$1/', $url);
+
+        $key = preg_replace('{[^a-z0-9.]}i', '-', $url);
+
+        // eCryptfs can have problems with filenames longer than around 143 chars
+        return \strlen($key) > 140 ? md5($url) : $key;
+    }
+}

vendor/symfony/flex/src/Event/UpdateEvent.php

@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Event;
+
+use Composer\Script\Event;
+use Composer\Script\ScriptEvents;
+
+class UpdateEvent extends Event
+{
+    private $force;
+    private $reset;
+
+    public function __construct(bool $force, bool $reset)
+    {
+        $this->name = ScriptEvents::POST_UPDATE_CMD;
+        $this->force = $force;
+        $this->reset = $reset;
+    }
+
+    public function force(): bool
+    {
+        return $this->force;
+    }
+
+    public function reset(): bool
+    {
+        return $this->reset;
+    }
+}

vendor/symfony/flex/src/Flex.php

@@ -0,0 +1,1078 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Command\GlobalCommand;
+use Composer\Composer;
+use Composer\Console\Application;
+use Composer\DependencyResolver\Operation\InstallOperation;
+use Composer\DependencyResolver\Operation\OperationInterface;
+use Composer\DependencyResolver\Operation\UninstallOperation;
+use Composer\DependencyResolver\Operation\UpdateOperation;
+use Composer\DependencyResolver\Pool;
+use Composer\DependencyResolver\Transaction;
+use Composer\Downloader\FileDownloader;
+use Composer\EventDispatcher\EventSubscriberInterface;
+use Composer\Factory;
+use Composer\Installer;
+use Composer\Installer\InstallerEvent;
+use Composer\Installer\InstallerEvents;
+use Composer\Installer\PackageEvent;
+use Composer\Installer\PackageEvents;
+use Composer\Installer\SuggestedPackagesReporter;
+use Composer\IO\IOInterface;
+use Composer\IO\NullIO;
+use Composer\Json\JsonFile;
+use Composer\Json\JsonManipulator;
+use Composer\Package\BasePackage;
+use Composer\Package\Comparer\Comparer;
+use Composer\Package\Locker;
+use Composer\Package\Package;
+use Composer\Package\PackageInterface;
+use Composer\Plugin\PluginEvents;
+use Composer\Plugin\PluginInterface;
+use Composer\Plugin\PreFileDownloadEvent;
+use Composer\Plugin\PrePoolCreateEvent;
+use Composer\Repository\ComposerRepository as BaseComposerRepository;
+use Composer\Repository\RepositoryFactory;
+use Composer\Repository\RepositoryManager;
+use Composer\Script\Event;
+use Composer\Script\ScriptEvents;
+use Composer\Semver\VersionParser;
+use Symfony\Component\Console\Input\ArgvInput;
+use Symfony\Component\Filesystem\Filesystem;
+use Symfony\Flex\Event\UpdateEvent;
+use Symfony\Flex\Unpack\Operation;
+use Symfony\Thanks\Thanks;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class Flex implements PluginInterface, EventSubscriberInterface
+{
+    /**
+     * @var Composer
+     */
+    private $composer;
+
+    /**
+     * @var IOInterface
+     */
+    private $io;
+
+    private $config;
+    private $options;
+    private $configurator;
+    private $downloader;
+
+    /**
+     * @var Installer
+     */
+    private $installer;
+    private $postInstallOutput = [''];
+    private $operations = [];
+    private $lock;
+    private $cacheDirPopulated = false;
+    private $displayThanksReminder = 0;
+    private $rfs;
+    private $progress = true;
+    private $dryRun = false;
+    private static $activated = true;
+    private static $repoReadingCommands = [
+        'create-project' => true,
+        'outdated' => true,
+        'require' => true,
+        'update' => true,
+        'install' => true,
+    ];
+    private static $aliasResolveCommands = [
+        'require' => true,
+        'update' => false,
+        'remove' => false,
+        'unpack' => true,
+    ];
+    private $filter;
+
+    public function activate(Composer $composer, IOInterface $io)
+    {
+        if (!\extension_loaded('openssl')) {
+            self::$activated = false;
+            $io->writeError('<warning>Symfony Flex has been disabled. You must enable the openssl extension in your "php.ini" file.</>');
+
+            return;
+        }
+
+        // to avoid issues when Flex is upgraded, we load all PHP classes now
+        // that way, we are sure to use all classes from the same version
+        foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator(__DIR__, \FilesystemIterator::SKIP_DOTS)) as $file) {
+            if ('.php' === substr($file, -4)) {
+                class_exists(__NAMESPACE__.str_replace('/', '\\', substr($file, \strlen(__DIR__), -4)));
+            }
+        }
+
+        $this->composer = $composer;
+        $this->io = $io;
+        $this->config = $composer->getConfig();
+        $this->options = $this->initOptions();
+
+        $symfonyRequire = preg_replace('/\.x$/', '.x-dev', getenv('SYMFONY_REQUIRE') ?: ($composer->getPackage()->getExtra()['symfony']['require'] ?? ''));
+
+        if ($composer2 = version_compare('2.0.0', PluginInterface::PLUGIN_API_VERSION, '<=')) {
+            $rfs = Factory::createHttpDownloader($this->io, $this->config);
+
+            $this->downloader = $downloader = new Downloader($composer, $io, $rfs);
+
+            if ($symfonyRequire) {
+                $this->filter = new PackageFilter($io, $symfonyRequire, $this->downloader);
+            }
+
+            $setRepositories = null;
+        } else {
+            $rfs = Factory::createRemoteFilesystem($this->io, $this->config);
+            $this->rfs = $rfs = new ParallelDownloader($this->io, $this->config, $rfs->getOptions(), $rfs->isTlsDisabled());
+
+            $this->downloader = $downloader = new Downloader($composer, $io, $this->rfs);
+
+            $rootPackage = $composer->getPackage();
+            $manager = RepositoryFactory::manager($this->io, $this->config, $composer->getEventDispatcher(), $this->rfs);
+            $setRepositories = \Closure::bind(function (RepositoryManager $manager) use (&$symfonyRequire, $rootPackage, $downloader) {
+                $manager->repositoryClasses = $this->repositoryClasses;
+                $manager->setRepositoryClass('composer', TruncatedComposerRepository::class);
+                $manager->repositories = $this->repositories;
+                $i = 0;
+                foreach (RepositoryFactory::defaultRepos(null, $this->config, $manager) as $repo) {
+                    $manager->repositories[$i++] = $repo;
+                    if ($repo instanceof TruncatedComposerRepository && $symfonyRequire) {
+                        $repo->setSymfonyRequire($symfonyRequire, $rootPackage, $downloader, $this->io);
+                    }
+                }
+                $manager->setLocalRepository($this->getLocalRepository());
+            }, $composer->getRepositoryManager(), RepositoryManager::class);
+
+            $setRepositories($manager);
+            $composer->setRepositoryManager($manager);
+        }
+
+        $this->configurator = new Configurator($composer, $io, $this->options);
+        $this->lock = new Lock(getenv('SYMFONY_LOCKFILE') ?: str_replace('composer.json', 'symfony.lock', Factory::getComposerFile()));
+
+        $disable = true;
+        foreach (array_merge($composer->getPackage()->getRequires() ?? [], $composer->getPackage()->getDevRequires() ?? []) as $link) {
+            // recipes apply only when symfony/flex is found in "require" or "require-dev" in the root package
+            if ('symfony/flex' === $link->getTarget()) {
+                $disable = false;
+                break;
+            }
+        }
+        if ($disable) {
+            $downloader->disable();
+        }
+
+        $populateRepoCacheDir = !$composer2 && __CLASS__ === self::class;
+        if (!$composer2 && $composer->getPluginManager()) {
+            foreach ($composer->getPluginManager()->getPlugins() as $plugin) {
+                if (0 === strpos(\get_class($plugin), 'Hirak\Prestissimo\Plugin')) {
+                    if (method_exists($rfs, 'getRemoteContents')) {
+                        $plugin->disable();
+                    } else {
+                        $this->cacheDirPopulated = true;
+                    }
+                    $populateRepoCacheDir = false;
+                    break;
+                }
+            }
+        }
+
+        $backtrace = $this->configureInstaller();
+
+        foreach ($backtrace as $trace) {
+            if (!isset($trace['object']) || !isset($trace['args'][0])) {
+                continue;
+            }
+
+            if (!$trace['object'] instanceof Application || !$trace['args'][0] instanceof ArgvInput) {
+                continue;
+            }
+
+            // In Composer 1.0.*, $input knows about option and argument definitions
+            // Since Composer >=1.1, $input contains only raw values
+            $input = $trace['args'][0];
+            $app = $trace['object'];
+
+            $resolver = new PackageResolver($this->downloader);
+
+            if (version_compare('1.1.0', PluginInterface::PLUGIN_API_VERSION, '>')) {
+                $note = $app->has('self-update') ? sprintf('`php %s self-update`', $_SERVER['argv'][0]) : 'https://getcomposer.org/';
+                $io->writeError('<warning>Some Symfony Flex features may not work as expected: your version of Composer is too old</>');
+                $io->writeError(sprintf('<warning>Please upgrade using %s</>', $note));
+            }
+
+            try {
+                $command = $input->getFirstArgument();
+                $command = $command ? $app->find($command)->getName() : null;
+            } catch (\InvalidArgumentException $e) {
+            }
+
+            if ('create-project' === $command) {
+                // detect Composer >=1.7 (using the Composer::VERSION constant doesn't work with snapshot builds)
+                if (class_exists(Comparer::class)) {
+                    if ($input->hasOption('remove-vcs')) {
+                        $input->setOption('remove-vcs', true);
+                    }
+                } else {
+                    $input->setInteractive(false);
+                }
+                $populateRepoCacheDir = $populateRepoCacheDir && !$input->hasOption('remove-vcs');
+            } elseif ('update' === $command) {
+                $this->displayThanksReminder = 1;
+            } elseif ('outdated' === $command) {
+                $symfonyRequire = null;
+                if ($setRepositories) {
+                    $setRepositories($manager);
+                }
+            }
+
+            if (isset(self::$aliasResolveCommands[$command])) {
+                // early resolve for BC with Composer 1.0
+                if ($input->hasArgument('packages')) {
+                    $input->setArgument('packages', $resolver->resolve($input->getArgument('packages'), self::$aliasResolveCommands[$command]));
+                }
+
+                if (version_compare('2.0.0', PluginInterface::PLUGIN_API_VERSION, '>') && $input->hasOption('no-suggest')) {
+                    $input->setOption('no-suggest', true);
+                }
+            }
+
+            if (!$composer2) {
+                if ($input->hasParameterOption('--no-progress', true)) {
+                    $this->progress = false;
+                }
+
+                if ($input->hasParameterOption('--dry-run', true)) {
+                    $this->dryRun = true;
+                }
+            }
+
+            if ($input->hasParameterOption('--prefer-lowest', true)) {
+                // When prefer-lowest is set and no stable version has been released,
+                // we consider "dev" more stable than "alpha", "beta" or "RC". This
+                // allows testing lowest versions with potential fixes applied.
+                BasePackage::$stabilities['dev'] = 1 + BasePackage::STABILITY_STABLE;
+            }
+
+            if ($populateRepoCacheDir && isset(self::$repoReadingCommands[$command]) && ('install' !== $command || (file_exists($composerFile = Factory::getComposerFile()) && !file_exists(substr($composerFile, 0, -4).'lock')))) {
+                $this->populateRepoCacheDir();
+            }
+
+            $app->add(new Command\RequireCommand($resolver, \Closure::fromCallable([$this, 'updateComposerLock'])));
+            $app->add(new Command\UpdateCommand($resolver));
+            $app->add(new Command\RemoveCommand($resolver));
+            $app->add(new Command\UnpackCommand($resolver));
+            $app->add(new Command\RecipesCommand($this, $this->lock, $rfs));
+            $app->add(new Command\InstallRecipesCommand($this, $this->options->get('root-dir'), $this->options->get('runtime')['dotenv_path'] ?? '.env'));
+            $app->add(new Command\UpdateRecipesCommand($this, $this->downloader, $rfs, $this->configurator, $this->options->get('root-dir')));
+            if (class_exists(Command\GenerateIdCommand::class)) {
+                $app->add(new Command\GenerateIdCommand(null));
+            }
+            $app->add(new Command\DumpEnvCommand($this->config, $this->options));
+
+            break;
+        }
+    }
+
+    public function deactivate(Composer $composer, IOInterface $io)
+    {
+        self::$activated = false;
+    }
+
+    public function configureInstaller()
+    {
+        $backtrace = debug_backtrace();
+        foreach ($backtrace as $trace) {
+            if (isset($trace['object']) && $trace['object'] instanceof Installer) {
+                $this->installer = $trace['object']->setSuggestedPackagesReporter(new SuggestedPackagesReporter(new NullIO()));
+            }
+
+            if (isset($trace['object']) && $trace['object'] instanceof GlobalCommand) {
+                $this->downloader->disable();
+            }
+        }
+
+        return $backtrace;
+    }
+
+    public function configureProject(Event $event)
+    {
+        if (!$this->downloader->isEnabled()) {
+            $this->io->writeError('<warning>Project configuration is disabled: "symfony/flex" not found in the root composer.json</>');
+
+            return;
+        }
+
+        // Remove LICENSE (which do not apply to the user project)
+        @unlink('LICENSE');
+
+        // Update composer.json (project is proprietary by default)
+        $file = Factory::getComposerFile();
+        $contents = file_get_contents($file);
+        $manipulator = new JsonManipulator($contents);
+        $json = JsonFile::parseJson($contents);
+
+        // new projects are most of the time proprietary
+        $manipulator->addMainKey('license', 'proprietary');
+
+        // extra.branch-alias doesn't apply to the project
+        $manipulator->removeSubNode('extra', 'branch-alias');
+
+        // 'name' and 'description' are only required for public packages
+        // don't use $manipulator->removeProperty() for BC with Composer 1.0
+        $contents = preg_replace(['{^\s*+"name":.*,$\n}m', '{^\s*+"description":.*,$\n}m'], '', $manipulator->getContents(), 1);
+        file_put_contents($file, $contents);
+
+        $this->updateComposerLock();
+    }
+
+    public function record(PackageEvent $event)
+    {
+        if ($this->shouldRecordOperation($event->getOperation(), $event->isDevMode(), $event->getComposer())) {
+            $this->operations[] = $event->getOperation();
+        }
+    }
+
+    public function recordOperations(InstallerEvent $event)
+    {
+        if (!$event->isExecutingOperations()) {
+            return;
+        }
+
+        $versionParser = new VersionParser();
+        $packages = [];
+        foreach ($this->lock->all() as $name => $info) {
+            $packages[] = new Package($name, $versionParser->normalize($info['version']), $info['version']);
+        }
+
+        $transation = \Closure::bind(function () use ($packages, $event) {
+            return new Transaction($packages, $event->getTransaction()->resultPackageMap);
+        }, null, Transaction::class)();
+
+        foreach ($transation->getOperations() as $operation) {
+            if ($this->shouldRecordOperation($operation, $event->isDevMode(), $event->getComposer())) {
+                $this->operations[] = $operation;
+            }
+        }
+    }
+
+    public function update(Event $event, $operations = [])
+    {
+        if ($operations) {
+            $this->operations = $operations;
+        }
+
+        $this->install($event);
+
+        $file = Factory::getComposerFile();
+        $contents = file_get_contents($file);
+        $json = JsonFile::parseJson($contents);
+
+        if (!isset($json['flex-require']) && !isset($json['flex-require-dev'])) {
+            $this->unpack($event);
+
+            return;
+        }
+
+        // merge "flex-require" with "require"
+        $manipulator = new JsonManipulator($contents);
+        $sortPackages = $this->composer->getConfig()->get('sort-packages');
+        $symfonyVersion = $json['extra']['symfony']['require'] ?? null;
+        $versions = $symfonyVersion ? $this->downloader->getVersions() : null;
+        foreach (['require', 'require-dev'] as $type) {
+            if (isset($json['flex-'.$type])) {
+                foreach ($json['flex-'.$type] as $package => $constraint) {
+                    if ($symfonyVersion && '*' === $constraint && isset($versions['splits'][$package])) {
+                        // replace unbounded constraints for symfony/* packages by extra.symfony.require
+                        $constraint = $symfonyVersion;
+                    }
+                    $manipulator->addLink($type, $package, $constraint, $sortPackages);
+                }
+
+                $manipulator->removeMainKey('flex-'.$type);
+            }
+        }
+
+        file_put_contents($file, $manipulator->getContents());
+
+        $this->reinstall($event, true);
+    }
+
+    public function install(Event $event)
+    {
+        $rootDir = $this->options->get('root-dir');
+        $runtime = $this->options->get('runtime');
+        $dotenvPath = $rootDir.'/'.($runtime['dotenv_path'] ?? '.env');
+
+        if (!file_exists($dotenvPath) && !file_exists($dotenvPath.'.local') && file_exists($dotenvPath.'.dist') && false === strpos(file_get_contents($dotenvPath.'.dist'), '.env.local')) {
+            copy($dotenvPath.'.dist', $dotenvPath);
+        }
+
+        // Execute missing recipes
+        $recipes = ScriptEvents::POST_UPDATE_CMD === $event->getName() ? $this->fetchRecipes($this->operations, $event instanceof UpdateEvent && $event->reset()) : [];
+        $this->operations = [];     // Reset the operation after getting recipes
+
+        if (2 === $this->displayThanksReminder) {
+            $love = '\\' === \DIRECTORY_SEPARATOR ? 'love' : '💖 ';
+            $star = '\\' === \DIRECTORY_SEPARATOR ? 'star' : '★ ';
+
+            $this->io->writeError('');
+            $this->io->writeError('What about running <comment>composer global require symfony/thanks && composer thanks</> now?');
+            $this->io->writeError(sprintf('This will spread some %s by sending a %s to the GitHub repositories of your fellow package maintainers.', $love, $star));
+        }
+
+        $this->io->writeError('');
+
+        if (!$recipes) {
+            if (ScriptEvents::POST_UPDATE_CMD === $event->getName()) {
+                $this->finish($rootDir);
+            }
+
+            if ($this->downloader->isEnabled()) {
+                $this->io->writeError('Run <comment>composer recipes</> at any time to see the status of your Symfony recipes.');
+                $this->io->writeError('');
+            }
+
+            return;
+        }
+
+        $this->io->writeError(sprintf('<info>Symfony operations: %d recipe%s (%s)</>', \count($recipes), \count($recipes) > 1 ? 's' : '', $this->downloader->getSessionId()));
+        $installContribs = $this->composer->getPackage()->getExtra()['symfony']['allow-contrib'] ?? false;
+        $manifest = null;
+        $originalComposerJsonHash = $this->getComposerJsonHash();
+        foreach ($recipes as $recipe) {
+            if ('install' === $recipe->getJob() && !$installContribs && $recipe->isContrib()) {
+                $warning = $this->io->isInteractive() ? 'WARNING' : 'IGNORING';
+                $this->io->writeError(sprintf('  - <warning> %s </> %s', $warning, $this->formatOrigin($recipe)));
+                $question = sprintf('    The recipe for this package comes from the "contrib" repository, which is open to community contributions.
+    Review the recipe at %s
+
+    Do you want to execute this recipe?
+    [<comment>y</>] Yes
+    [<comment>n</>] No
+    [<comment>a</>] Yes for all packages, only for the current installation session
+    [<comment>p</>] Yes permanently, never ask again for this project
+    (defaults to <comment>n</>): ', $recipe->getURL());
+                $answer = $this->io->askAndValidate(
+                    $question,
+                    function ($value) {
+                        if (null === $value) {
+                            return 'n';
+                        }
+                        $value = strtolower($value[0]);
+                        if (!\in_array($value, ['y', 'n', 'a', 'p'])) {
+                            throw new \InvalidArgumentException('Invalid choice.');
+                        }
+
+                        return $value;
+                    },
+                    null,
+                    'n'
+                );
+                if ('n' === $answer) {
+                    continue;
+                }
+                if ('a' === $answer) {
+                    $installContribs = true;
+                }
+                if ('p' === $answer) {
+                    $installContribs = true;
+                    $json = new JsonFile(Factory::getComposerFile());
+                    $manipulator = new JsonManipulator(file_get_contents($json->getPath()));
+                    $manipulator->addSubNode('extra', 'symfony.allow-contrib', true);
+                    file_put_contents($json->getPath(), $manipulator->getContents());
+                }
+            }
+
+            switch ($recipe->getJob()) {
+                case 'install':
+                    $this->io->writeError(sprintf('  - Configuring %s', $this->formatOrigin($recipe)));
+                    $this->configurator->install($recipe, $this->lock, [
+                        'force' => $event instanceof UpdateEvent && $event->force(),
+                    ]);
+                    $manifest = $recipe->getManifest();
+                    if (isset($manifest['post-install-output'])) {
+                        $this->postInstallOutput[] = sprintf('<bg=yellow;fg=white> %s </> instructions:', $recipe->getName());
+                        $this->postInstallOutput[] = '';
+                        foreach ($manifest['post-install-output'] as $line) {
+                            $this->postInstallOutput[] = $this->options->expandTargetDir($line);
+                        }
+                        $this->postInstallOutput[] = '';
+                    }
+                    break;
+                case 'update':
+                    break;
+                case 'uninstall':
+                    $this->io->writeError(sprintf('  - Unconfiguring %s', $this->formatOrigin($recipe)));
+                    $this->configurator->unconfigure($recipe, $this->lock);
+                    break;
+            }
+        }
+
+        if (null !== $manifest) {
+            array_unshift(
+                $this->postInstallOutput,
+                '<bg=blue;fg=white>              </>',
+                '<bg=blue;fg=white> What\'s next? </>',
+                '<bg=blue;fg=white>              </>',
+                '',
+                '<info>Some files have been created and/or updated to configure your new packages.</>',
+                'Please <comment>review</>, <comment>edit</> and <comment>commit</> them: these files are <comment>yours</>.'
+            );
+        }
+
+        $this->finish($rootDir, $originalComposerJsonHash);
+    }
+
+    public function finish(string $rootDir, string $originalComposerJsonHash = null): void
+    {
+        $this->synchronizePackageJson($rootDir);
+        $this->lock->write();
+
+        if ($originalComposerJsonHash && $this->getComposerJsonHash() !== $originalComposerJsonHash) {
+            $this->updateComposerLock();
+        }
+    }
+
+    private function synchronizePackageJson(string $rootDir)
+    {
+        $rootDir = realpath($rootDir);
+        $vendorDir = trim((new Filesystem())->makePathRelative($this->config->get('vendor-dir'), $rootDir), '/');
+
+        $synchronizer = new PackageJsonSynchronizer($rootDir, $vendorDir);
+
+        if ($synchronizer->shouldSynchronize()) {
+            $lockData = $this->composer->getLocker()->getLockData();
+
+            if (method_exists($synchronizer, 'addPackageJsonLink') && 'string' === (new \ReflectionParameter([$synchronizer, 'addPackageJsonLink'], 'phpPackage'))->getType()->getName()) {
+                // support for smooth upgrades from older flex versions
+                $lockData['packages'] = array_column($lockData['packages'] ?? [], 'name');
+                $lockData['packages-dev'] = array_column($lockData['packages-dev'] ?? [], 'name');
+            }
+
+            if ($synchronizer->synchronize(array_merge($lockData['packages'] ?? [], $lockData['packages-dev'] ?? []))) {
+                $this->io->writeError('<info>Synchronizing package.json with PHP packages</>');
+                $this->io->writeError('<warning>Don\'t forget to run npm install --force or yarn install --force to refresh your JavaScript dependencies!</>');
+                $this->io->writeError('');
+            }
+        }
+    }
+
+    public function uninstall(Composer $composer, IOInterface $io)
+    {
+        $this->lock->delete();
+    }
+
+    public function enableThanksReminder()
+    {
+        if (1 === $this->displayThanksReminder) {
+            $this->displayThanksReminder = !class_exists(Thanks::class, false) && version_compare('1.1.0', PluginInterface::PLUGIN_API_VERSION, '<=') ? 2 : 0;
+        }
+    }
+
+    public function executeAutoScripts(Event $event)
+    {
+        $event->stopPropagation();
+
+        // force reloading scripts as we might have added and removed during this run
+        $json = new JsonFile(Factory::getComposerFile());
+        $jsonContents = $json->read();
+
+        $executor = new ScriptExecutor($this->composer, $this->io, $this->options);
+        foreach ($jsonContents['scripts']['auto-scripts'] as $cmd => $type) {
+            $executor->execute($type, $cmd);
+        }
+
+        $this->io->write($this->postInstallOutput);
+        $this->postInstallOutput = [];
+    }
+
+    public function populateProvidersCacheDir(InstallerEvent $event)
+    {
+        $listed = [];
+        $packages = [];
+        $pool = $event->getPool();
+        $pool = \Closure::bind(function () {
+            foreach ($this->providerRepos as $k => $repo) {
+                $this->providerRepos[$k] = new class($repo) extends BaseComposerRepository {
+                    private $repo;
+
+                    public function __construct($repo)
+                    {
+                        $this->repo = $repo;
+                    }
+
+                    public function whatProvides(Pool $pool, $name, $bypassFilters = false)
+                    {
+                        $packages = [];
+                        foreach ($this->repo->whatProvides($pool, $name, $bypassFilters) as $k => $p) {
+                            $packages[$k] = clone $p;
+                        }
+
+                        return $packages;
+                    }
+                };
+            }
+
+            return $this;
+        }, clone $pool, $pool)();
+
+        foreach ($event->getRequest()->getJobs() as $job) {
+            if ('install' !== $job['cmd'] || false === strpos($job['packageName'], '/')) {
+                continue;
+            }
+
+            $listed[$job['packageName']] = true;
+            $packages[] = [$job['packageName'], $job['constraint']];
+        }
+
+        $loadExtraRepos = !(new \ReflectionMethod(Pool::class, 'match'))->isPublic(); // Detect Composer < 1.7.3
+        $this->rfs->download($packages, function ($packageName, $constraint) use (&$listed, &$packages, $pool, $loadExtraRepos) {
+            foreach ($pool->whatProvides($packageName, $constraint, true) as $package) {
+                $links = $loadExtraRepos ? array_merge($package->getRequires(), $package->getConflicts(), $package->getReplaces()) : $package->getRequires();
+                foreach ($links as $link) {
+                    if (isset($listed[$link->getTarget()]) || false === strpos($link->getTarget(), '/')) {
+                        continue;
+                    }
+                    $listed[$link->getTarget()] = true;
+                    $packages[] = [$link->getTarget(), $link->getConstraint()];
+                }
+            }
+        });
+    }
+
+    public function populateFilesCacheDir(InstallerEvent $event)
+    {
+        if ($this->cacheDirPopulated || $this->dryRun) {
+            return;
+        }
+        $this->cacheDirPopulated = true;
+
+        $downloads = [];
+        $cacheDir = rtrim($this->config->get('cache-files-dir'), '\/').\DIRECTORY_SEPARATOR;
+        $getCacheKey = function (PackageInterface $package, $processedUrl) {
+            return $this->getCacheKey($package, $processedUrl);
+        };
+        $getCacheKey = \Closure::bind($getCacheKey, new FileDownloader($this->io, $this->config), FileDownloader::class);
+
+        foreach ($event->getOperations() as $op) {
+            if ('install' === $op->getJobType()) {
+                $package = $op->getPackage();
+            } elseif ('update' === $op->getJobType()) {
+                $package = $op->getTargetPackage();
+            } else {
+                continue;
+            }
+
+            if (!$fileUrl = $package->getDistUrl()) {
+                continue;
+            }
+
+            if ($package->getDistMirrors()) {
+                $fileUrl = current($package->getDistUrls());
+            }
+
+            if (!preg_match('/^https?:/', $fileUrl) || !$originUrl = parse_url($fileUrl, \PHP_URL_HOST)) {
+                continue;
+            }
+
+            if (file_exists($file = $cacheDir.$getCacheKey($package, $fileUrl))) {
+                continue;
+            }
+
+            @mkdir(\dirname($file), 0775, true);
+
+            if (!is_dir(\dirname($file))) {
+                continue;
+            }
+
+            if (preg_match('#^https://github\.com/#', $package->getSourceUrl()) && preg_match('#^https://api\.github\.com/repos(/[^/]++/[^/]++/)zipball(.++)$#', $fileUrl, $m)) {
+                $fileUrl = sprintf('https://codeload.github.com%slegacy.zip%s', $m[1], $m[2]);
+            }
+
+            $downloads[] = [$originUrl, $fileUrl, [], $file, false];
+        }
+
+        if (1 < \count($downloads)) {
+            $this->rfs->download($downloads, [$this->rfs, 'get'], false, $this->progress);
+        }
+    }
+
+    public function onFileDownload(PreFileDownloadEvent $event)
+    {
+        if ($event->getRemoteFilesystem() !== $this->rfs) {
+            $event->setRemoteFilesystem($this->rfs->setNextOptions($event->getRemoteFilesystem()->getOptions()));
+        }
+    }
+
+    /**
+     * @return Recipe[]
+     */
+    public function fetchRecipes(array $operations, bool $reset): array
+    {
+        if (!$this->downloader->isEnabled()) {
+            $this->io->writeError('<warning>Symfony recipes are disabled: "symfony/flex" not found in the root composer.json</>');
+
+            return [];
+        }
+        $devPackages = null;
+        $data = $this->downloader->getRecipes($operations);
+        $manifests = $data['manifests'] ?? [];
+        $locks = $data['locks'] ?? [];
+        // symfony/flex recipes should always be applied first
+        $flexRecipe = [];
+        // symfony/framework-bundle recipe should always be applied first after the metapackages
+        $recipes = [
+            'symfony/framework-bundle' => null,
+        ];
+        $metaRecipes = [];
+
+        foreach ($operations as $operation) {
+            if ($operation instanceof UpdateOperation) {
+                $package = $operation->getTargetPackage();
+            } else {
+                $package = $operation->getPackage();
+            }
+
+            // FIXME: Multi name with getNames()
+            $name = $package->getName();
+            $job = method_exists($operation, 'getOperationType') ? $operation->getOperationType() : $operation->getJobType();
+
+            if (!isset($manifests[$name]) && isset($data['conflicts'][$name])) {
+                $this->io->writeError(sprintf('  - Skipping recipe for %s: all versions of the recipe conflict with your package versions.', $name), true, IOInterface::VERBOSE);
+                continue;
+            }
+
+            while ($this->doesRecipeConflict($manifests[$name] ?? [], $operation)) {
+                $this->downloader->removeRecipeFromIndex($name, $manifests[$name]['version']);
+                $newData = $this->downloader->getRecipes([$operation]);
+                $newManifests = $newData['manifests'] ?? [];
+
+                if (!isset($newManifests[$name])) {
+                    // no older recipe found
+                    $this->io->writeError(sprintf('  - Skipping recipe for %s: all versions of the recipe conflict with your package versions.', $name), true, IOInterface::VERBOSE);
+
+                    continue 2;
+                }
+
+                // push the "old" recipe into the $manifests
+                $manifests[$name] = $newManifests[$name];
+                $locks[$name] = $newData['locks'][$name];
+            }
+
+            if ($operation instanceof InstallOperation && isset($locks[$name])) {
+                $ref = $this->lock->get($name)['recipe']['ref'] ?? null;
+                if (!$reset && $ref && ($locks[$name]['recipe']['ref'] ?? null) === $ref) {
+                    continue;
+                }
+                $this->lock->set($name, $locks[$name]);
+            } elseif ($operation instanceof UninstallOperation) {
+                if (!$this->lock->has($name)) {
+                    continue;
+                }
+                $this->lock->remove($name);
+            }
+
+            if (isset($manifests[$name])) {
+                if ('metapackage' === $package->getType()) {
+                    $metaRecipes[$name] = new Recipe($package, $name, $job, $manifests[$name], $locks[$name] ?? []);
+                } elseif ('symfony/flex' === $name) {
+                    $flexRecipe = [$name => new Recipe($package, $name, $job, $manifests[$name], $locks[$name] ?? [])];
+                } else {
+                    $recipes[$name] = new Recipe($package, $name, $job, $manifests[$name], $locks[$name] ?? []);
+                }
+            }
+
+            if (!isset($manifests[$name])) {
+                $bundles = [];
+
+                if (null === $devPackages) {
+                    $devPackages = array_column($this->composer->getLocker()->getLockData()['packages-dev'], 'name');
+                }
+                $envs = \in_array($name, $devPackages) ? ['dev', 'test'] : ['all'];
+                $bundle = new SymfonyBundle($this->composer, $package, $job);
+                foreach ($bundle->getClassNames() as $bundleClass) {
+                    $bundles[$bundleClass] = $envs;
+                }
+
+                if ($bundles) {
+                    $manifest = [
+                        'origin' => sprintf('%s:%s@auto-generated recipe', $name, $package->getPrettyVersion()),
+                        'manifest' => ['bundles' => $bundles],
+                    ];
+                    $recipes[$name] = new Recipe($package, $name, $job, $manifest);
+                }
+            }
+        }
+
+        return array_merge($flexRecipe, $metaRecipes, array_filter($recipes));
+    }
+
+    public function truncatePackages(PrePoolCreateEvent $event)
+    {
+        if (!$this->filter) {
+            return;
+        }
+
+        $rootPackage = $this->composer->getPackage();
+        $lockedPackages = $event->getRequest()->getFixedOrLockedPackages();
+
+        $event->setPackages($this->filter->removeLegacyPackages($event->getPackages(), $rootPackage, $lockedPackages));
+    }
+
+    public function getComposerJsonHash(): string
+    {
+        return md5_file(Factory::getComposerFile());
+    }
+
+    public function getLock(): Lock
+    {
+        if (null === $this->lock) {
+            throw new \Exception('Cannot access lock before calling activate().');
+        }
+
+        return $this->lock;
+    }
+
+    private function initOptions(): Options
+    {
+        $extra = $this->composer->getPackage()->getExtra();
+
+        $options = array_merge([
+            'bin-dir' => 'bin',
+            'conf-dir' => 'conf',
+            'config-dir' => 'config',
+            'src-dir' => 'src',
+            'var-dir' => 'var',
+            'public-dir' => 'public',
+            'root-dir' => $extra['symfony']['root-dir'] ?? '.',
+            'runtime' => $extra['runtime'] ?? [],
+        ], $extra);
+
+        return new Options($options, $this->io);
+    }
+
+    private function formatOrigin(Recipe $recipe): string
+    {
+        if (method_exists($recipe, 'getFormattedOrigin')) {
+            return $recipe->getFormattedOrigin();
+        }
+
+        // BC with upgrading from flex < 1.18
+        $origin = $recipe->getOrigin();
+
+        // symfony/translation:3.3@github.com/symfony/recipes:branch
+        if (!preg_match('/^([^:]++):([^@]++)@(.+)$/', $origin, $matches)) {
+            return $origin;
+        }
+
+        return sprintf('<info>%s</> (<comment>>=%s</>): From %s', $matches[1], $matches[2], 'auto-generated recipe' === $matches[3] ? '<comment>'.$matches[3].'</>' : $matches[3]);
+    }
+
+    private function shouldRecordOperation(OperationInterface $operation, bool $isDevMode, Composer $composer = null): bool
+    {
+        if ($this->dryRun) {
+            return false;
+        }
+
+        if ($operation instanceof UpdateOperation) {
+            $package = $operation->getTargetPackage();
+        } else {
+            $package = $operation->getPackage();
+        }
+
+        // when Composer runs with --no-dev, ignore uninstall operations on packages from require-dev
+        if (!$isDevMode && $operation instanceof UninstallOperation) {
+            foreach (($composer ?? $this->composer)->getLocker()->getLockData()['packages-dev'] as $p) {
+                if ($package->getName() === $p['name']) {
+                    return false;
+                }
+            }
+        }
+
+        // FIXME: Multi name with getNames()
+        $name = $package->getName();
+        if ($operation instanceof InstallOperation) {
+            if (!$this->lock->has($name)) {
+                return true;
+            }
+        } elseif ($operation instanceof UninstallOperation) {
+            return true;
+        }
+
+        return false;
+    }
+
+    private function populateRepoCacheDir()
+    {
+        $repos = [];
+
+        foreach ($this->composer->getPackage()->getRepositories() as $name => $repo) {
+            if (!isset($repo['type']) || 'composer' !== $repo['type'] || !empty($repo['force-lazy-providers'])) {
+                continue;
+            }
+
+            if (!preg_match('#^http(s\??)?://#', $repo['url'])) {
+                continue;
+            }
+
+            $repo = new ComposerRepository($repo, $this->io, $this->config, null, $this->rfs);
+
+            $repos[] = [$repo];
+        }
+
+        $this->rfs->download($repos, function ($repo) {
+            ParallelDownloader::$cacheNext = true;
+            $repo->getProviderNames();
+        });
+    }
+
+    private function updateComposerLock()
+    {
+        $lock = substr(Factory::getComposerFile(), 0, -4).'lock';
+        $composerJson = file_get_contents(Factory::getComposerFile());
+        $lockFile = new JsonFile($lock, null, $this->io);
+        if (version_compare('2.0.0', PluginInterface::PLUGIN_API_VERSION, '>')) {
+            $locker = new Locker($this->io, $lockFile, $this->composer->getRepositoryManager(), $this->composer->getInstallationManager(), $composerJson);
+        } else {
+            $locker = new Locker($this->io, $lockFile, $this->composer->getInstallationManager(), $composerJson);
+        }
+        $lockData = $locker->getLockData();
+        $lockData['content-hash'] = Locker::getContentHash($composerJson);
+        $lockFile->write($lockData);
+    }
+
+    private function unpack(Event $event)
+    {
+        $jsonPath = Factory::getComposerFile();
+        $json = JsonFile::parseJson(file_get_contents($jsonPath));
+        $sortPackages = $this->composer->getConfig()->get('sort-packages');
+        $unpackOp = new Operation(true, $sortPackages);
+
+        foreach (['require', 'require-dev'] as $type) {
+            foreach ($json[$type] ?? [] as $package => $constraint) {
+                $unpackOp->addPackage($package, $constraint, 'require-dev' === $type);
+            }
+        }
+
+        $unpacker = new Unpacker($this->composer, new PackageResolver($this->downloader), $this->dryRun);
+        $result = $unpacker->unpack($unpackOp);
+
+        if (!$result->getUnpacked()) {
+            return;
+        }
+
+        $this->io->writeError('<info>Unpacking Symfony packs</>');
+        foreach ($result->getUnpacked() as $pkg) {
+            $this->io->writeError(sprintf('  - Unpacked <info>%s</>', $pkg->getName()));
+        }
+
+        $unpacker->updateLock($result, $this->io);
+
+        $this->reinstall($event, false);
+    }
+
+    private function reinstall(Event $event, bool $update)
+    {
+        $event->stopPropagation();
+
+        $ed = $this->composer->getEventDispatcher();
+        $disableScripts = !method_exists($ed, 'setRunScripts') || !((array) $ed)["\0*\0runScripts"];
+        $composer = Factory::create($this->io, null, false, $disableScripts);
+
+        $installer = clone $this->installer;
+        $installer->__construct(
+            $this->io,
+            $composer->getConfig(),
+            $composer->getPackage(),
+            $composer->getDownloadManager(),
+            $composer->getRepositoryManager(),
+            $composer->getLocker(),
+            $composer->getInstallationManager(),
+            $composer->getEventDispatcher(),
+            $composer->getAutoloadGenerator()
+        );
+
+        if (!$update) {
+            $installer->setUpdateAllowList(['php']);
+        }
+
+        if (method_exists($installer, 'setSkipSuggest')) {
+            $installer->setSkipSuggest(true);
+        }
+
+        $installer->run();
+
+        $this->io->write($this->postInstallOutput);
+        $this->postInstallOutput = [];
+    }
+
+    public static function getSubscribedEvents(): array
+    {
+        if (!self::$activated) {
+            return [];
+        }
+
+        $events = [
+            ScriptEvents::POST_CREATE_PROJECT_CMD => 'configureProject',
+            ScriptEvents::POST_INSTALL_CMD => 'install',
+            ScriptEvents::PRE_UPDATE_CMD => 'configureInstaller',
+            ScriptEvents::POST_UPDATE_CMD => 'update',
+            'auto-scripts' => 'executeAutoScripts',
+        ];
+
+        if (version_compare('2.0.0', PluginInterface::PLUGIN_API_VERSION, '>')) {
+            $events += [
+                PackageEvents::POST_PACKAGE_INSTALL => 'record',
+                PackageEvents::POST_PACKAGE_UPDATE => [['record'], ['enableThanksReminder']],
+                PackageEvents::POST_PACKAGE_UNINSTALL => 'record',
+                InstallerEvents::PRE_DEPENDENCIES_SOLVING => [['populateProvidersCacheDir', \PHP_INT_MAX]],
+                InstallerEvents::POST_DEPENDENCIES_SOLVING => [['populateFilesCacheDir', \PHP_INT_MAX]],
+                PackageEvents::PRE_PACKAGE_INSTALL => [['populateFilesCacheDir', ~\PHP_INT_MAX]],
+                PackageEvents::PRE_PACKAGE_UPDATE => [['populateFilesCacheDir', ~\PHP_INT_MAX]],
+                PluginEvents::PRE_FILE_DOWNLOAD => 'onFileDownload',
+            ];
+        } else {
+            $events += [
+                PackageEvents::POST_PACKAGE_UPDATE => 'enableThanksReminder',
+                InstallerEvents::PRE_OPERATIONS_EXEC => 'recordOperations',
+                PluginEvents::PRE_POOL_CREATE => 'truncatePackages',
+            ];
+        }
+
+        return $events;
+    }
+
+    private function doesRecipeConflict(array $recipeData, OperationInterface $operation): bool
+    {
+        if (empty($recipeData['manifest']['conflict']) || $operation instanceof UninstallOperation) {
+            return false;
+        }
+
+        $lockedRepository = $this->composer->getLocker()->getLockedRepository();
+
+        foreach ($recipeData['manifest']['conflict'] as $conflictingPackage => $constraint) {
+            if ($lockedRepository->findPackage($conflictingPackage, $constraint)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}

vendor/symfony/flex/src/GithubApi.php

@@ -0,0 +1,204 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Util\HttpDownloader;
+use Composer\Util\RemoteFilesystem;
+
+class GithubApi
+{
+    /** @var HttpDownloader|RemoteFilesystem */
+    private $downloader;
+
+    public function __construct($downloader)
+    {
+        $this->downloader = $downloader;
+    }
+
+    /**
+     * Attempts to find data about when the recipe was installed.
+     *
+     * Returns an array containing:
+     *      commit: The git sha of the last commit of the recipe
+     *      date: The date of the commit
+     *      new_commits: An array of commit sha's in this recipe's directory+version since the commit
+     *                   The key is the sha & the value is the date
+     */
+    public function findRecipeCommitDataFromTreeRef(string $package, string $repo, string $branch, string $version, string $lockRef): ?array
+    {
+        $repositoryName = $this->getRepositoryName($repo);
+        if (!$repositoryName) {
+            return null;
+        }
+
+        $recipePath = sprintf('%s/%s', $package, $version);
+        $commitsData = $this->requestGitHubApi(sprintf(
+            'https://api.github.com/repos/%s/commits?path=%s&sha=%s',
+            $repositoryName,
+            $recipePath,
+            $branch
+        ));
+
+        $commitShas = [];
+        foreach ($commitsData as $commitData) {
+            $commitShas[$commitData['sha']] = $commitData['commit']['committer']['date'];
+            // go back the commits one-by-one
+            $treeUrl = $commitData['commit']['tree']['url'].'?recursive=true';
+
+            // fetch the full tree, then look for the tree for the package path
+            $treeData = $this->requestGitHubApi($treeUrl);
+            foreach ($treeData['tree'] as $treeItem) {
+                if ($treeItem['path'] !== $recipePath) {
+                    continue;
+                }
+
+                if ($treeItem['sha'] === $lockRef) {
+                    // remove *this* commit from the new commits list
+                    array_pop($commitShas);
+
+                    return [
+                        // shorten for brevity
+                        'commit' => substr($commitData['sha'], 0, 7),
+                        'date' => $commitData['commit']['committer']['date'],
+                        'new_commits' => $commitShas,
+                    ];
+                }
+            }
+        }
+
+        return null;
+    }
+
+    public function getVersionsOfRecipe(string $repo, string $branch, string $recipePath): ?array
+    {
+        $repositoryName = $this->getRepositoryName($repo);
+        if (!$repositoryName) {
+            return null;
+        }
+
+        $url = sprintf(
+            'https://api.github.com/repos/%s/contents/%s?ref=%s',
+            $repositoryName,
+            $recipePath,
+            $branch
+        );
+        $contents = $this->requestGitHubApi($url);
+        $versions = [];
+        foreach ($contents as $fileData) {
+            if ('dir' !== $fileData['type']) {
+                continue;
+            }
+
+            $versions[] = $fileData['name'];
+        }
+
+        return $versions;
+    }
+
+    public function getCommitDataForPath(string $repo, string $path, string $branch): array
+    {
+        $repositoryName = $this->getRepositoryName($repo);
+        if (!$repositoryName) {
+            return [];
+        }
+
+        $commitsData = $this->requestGitHubApi(sprintf(
+            'https://api.github.com/repos/%s/commits?path=%s&sha=%s',
+            $repositoryName,
+            $path,
+            $branch
+        ));
+
+        $data = [];
+        foreach ($commitsData as $commitData) {
+            $data[$commitData['sha']] = $commitData['commit']['committer']['date'];
+        }
+
+        return $data;
+    }
+
+    public function getPullRequestForCommit(string $commit, string $repo): ?array
+    {
+        $data = $this->requestGitHubApi('https://api.github.com/search/issues?q='.$commit);
+
+        if (0 === \count($data['items'])) {
+            return null;
+        }
+
+        $repositoryName = $this->getRepositoryName($repo);
+        if (!$repositoryName) {
+            return null;
+        }
+
+        $bestItem = null;
+        foreach ($data['items'] as $item) {
+            // make sure the PR referenced isn't from a different repository
+            if (false === strpos($item['html_url'], sprintf('%s/pull', $repositoryName))) {
+                continue;
+            }
+
+            if (null === $bestItem) {
+                $bestItem = $item;
+
+                continue;
+            }
+
+            // find the first PR to reference - avoids rare cases where an invalid
+            // PR that references *many* commits is first
+            // e.g. https://api.github.com/search/issues?q=a1a70353f64f405cfbacfc4ce860af623442d6e5
+            if ($item['number'] < $bestItem['number']) {
+                $bestItem = $item;
+            }
+        }
+
+        if (!$bestItem) {
+            return null;
+        }
+
+        return [
+            'number' => $bestItem['number'],
+            'url' => $bestItem['html_url'],
+            'title' => $bestItem['title'],
+        ];
+    }
+
+    private function requestGitHubApi(string $path)
+    {
+        if ($this->downloader instanceof HttpDownloader) {
+            $contents = $this->downloader->get($path)->getBody();
+        } else {
+            $contents = $this->downloader->getContents('api.github.com', $path, false);
+        }
+
+        return json_decode($contents, true);
+    }
+
+    /**
+     * Converts the "repo" stored in symfony.lock to a repository name.
+     *
+     * For example: "github.com/symfony/recipes" => "symfony/recipes"
+     */
+    private function getRepositoryName(string $repo): ?string
+    {
+        // only supports public repository placement
+        if (0 !== strpos($repo, 'github.com')) {
+            return null;
+        }
+
+        $parts = explode('/', $repo);
+        if (3 !== \count($parts)) {
+            return null;
+        }
+
+        return implode('/', [$parts[1], $parts[2]]);
+    }
+}

vendor/symfony/flex/src/InformationOperation.php

@@ -0,0 +1,91 @@
+<?php
+
+namespace Symfony\Flex;
+
+use Composer\DependencyResolver\Operation\OperationInterface;
+use Composer\Package\PackageInterface;
+
+/**
+ * @author Maxime Hélias <maximehelias16@gmail.com>
+ */
+class InformationOperation implements OperationInterface
+{
+    private $package;
+    private $recipeRef = null;
+    private $version = null;
+
+    public function __construct(PackageInterface $package)
+    {
+        $this->package = $package;
+    }
+
+    /**
+     * Call to get information about a specific version of a recipe.
+     *
+     * Both $recipeRef and $version would normally come from the symfony.lock file.
+     */
+    public function setSpecificRecipeVersion(string $recipeRef, string $version)
+    {
+        $this->recipeRef = $recipeRef;
+        $this->version = $version;
+    }
+
+    /**
+     * Returns package instance.
+     *
+     * @return PackageInterface
+     */
+    public function getPackage()
+    {
+        return $this->package;
+    }
+
+    public function getRecipeRef(): ?string
+    {
+        return $this->recipeRef;
+    }
+
+    public function getVersion(): ?string
+    {
+        return $this->version;
+    }
+
+    public function getJobType()
+    {
+        return 'information';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getOperationType()
+    {
+        return 'information';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function show($lock)
+    {
+        $pretty = method_exists($this->package, 'getFullPrettyVersion') ? $this->package->getFullPrettyVersion() : $this->formatVersion($this->package);
+
+        return 'Information '.$this->package->getPrettyName().' ('.$pretty.')';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __toString()
+    {
+        return $this->show(false);
+    }
+
+    /**
+     * Compatibility for Composer 1.x, not needed in Composer 2.
+     */
+    public function getReason()
+    {
+        return null;
+    }
+}

vendor/symfony/flex/src/Lock.php

@@ -0,0 +1,89 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Json\JsonFile;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Lock
+{
+    private $json;
+    private $lock = [];
+    private $changed = false;
+
+    public function __construct($lockFile)
+    {
+        $this->json = new JsonFile($lockFile);
+        if ($this->json->exists()) {
+            $this->lock = $this->json->read();
+        }
+    }
+
+    public function has($name): bool
+    {
+        return \array_key_exists($name, $this->lock);
+    }
+
+    public function add($name, $data)
+    {
+        $current = $this->lock[$name] ?? [];
+        $this->lock[$name] = array_merge($current, $data);
+        $this->changed = true;
+    }
+
+    public function get($name)
+    {
+        return $this->lock[$name] ?? null;
+    }
+
+    public function set($name, $data)
+    {
+        if (!\array_key_exists($name, $this->lock) || $data !== $this->lock[$name]) {
+            $this->lock[$name] = $data;
+            $this->changed = true;
+        }
+    }
+
+    public function remove($name)
+    {
+        if (\array_key_exists($name, $this->lock)) {
+            unset($this->lock[$name]);
+            $this->changed = true;
+        }
+    }
+
+    public function write()
+    {
+        if (!$this->changed) {
+            return;
+        }
+
+        if ($this->lock) {
+            ksort($this->lock);
+            $this->json->write($this->lock);
+        } elseif ($this->json->exists()) {
+            @unlink($this->json->getPath());
+        }
+    }
+
+    public function delete()
+    {
+        @unlink($this->json->getPath());
+    }
+
+    public function all(): array
+    {
+        return $this->lock;
+    }
+}

vendor/symfony/flex/src/Options.php

@@ -0,0 +1,88 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\IO\IOInterface;
+use Composer\Util\ProcessExecutor;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Options
+{
+    private $options;
+    private $writtenFiles = [];
+    private $io;
+
+    public function __construct(array $options = [], IOInterface $io = null)
+    {
+        $this->options = $options;
+        $this->io = $io;
+    }
+
+    public function get(string $name)
+    {
+        return $this->options[$name] ?? null;
+    }
+
+    public function expandTargetDir(string $target): string
+    {
+        return preg_replace_callback('{%(.+?)%}', function ($matches) {
+            $option = str_replace('_', '-', strtolower($matches[1]));
+            if (!isset($this->options[$option])) {
+                return $matches[0];
+            }
+
+            return rtrim($this->options[$option], '/');
+        }, $target);
+    }
+
+    public function shouldWriteFile(string $file, bool $overwrite): bool
+    {
+        if (isset($this->writtenFiles[$file])) {
+            return false;
+        }
+        $this->writtenFiles[$file] = true;
+
+        if (!file_exists($file)) {
+            return true;
+        }
+
+        if (!$overwrite) {
+            return false;
+        }
+
+        if (!filesize($file)) {
+            return true;
+        }
+
+        exec('git status --short --ignored --untracked-files=all -- '.ProcessExecutor::escape($file).' 2>&1', $output, $status);
+
+        if (0 !== $status) {
+            return $this->io && $this->io->askConfirmation(sprintf('Cannot determine the state of the "%s" file, overwrite anyway? [y/N] ', $file), false);
+        }
+
+        if (empty($output[0]) || preg_match('/^[ AMDRCU][ D][ \t]/', $output[0])) {
+            return true;
+        }
+
+        $name = basename($file);
+        $name = \strlen($output[0]) - \strlen($name) === strrpos($output[0], $name) ? substr($output[0], 3) : $name;
+
+        return $this->io && $this->io->askConfirmation(sprintf('File "%s" has uncommitted changes, overwrite? [y/N] ', $name), false);
+    }
+
+    public function toArray(): array
+    {
+        return $this->options;
+    }
+}

vendor/symfony/flex/src/PackageFilter.php

@@ -0,0 +1,154 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\IO\IOInterface;
+use Composer\Package\AliasPackage;
+use Composer\Package\PackageInterface;
+use Composer\Package\RootPackageInterface;
+use Composer\Semver\Constraint\Constraint;
+use Composer\Semver\Intervals;
+use Composer\Semver\VersionParser;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class PackageFilter
+{
+    private $versions;
+    private $versionParser;
+    private $symfonyRequire;
+    private $symfonyConstraints;
+    private $downloader;
+    private $io;
+
+    public function __construct(IOInterface $io, string $symfonyRequire, Downloader $downloader)
+    {
+        $this->versionParser = new VersionParser();
+        $this->symfonyRequire = $symfonyRequire;
+        $this->symfonyConstraints = $this->versionParser->parseConstraints($symfonyRequire);
+        $this->downloader = $downloader;
+        $this->io = $io;
+    }
+
+    /**
+     * @param PackageInterface[] $data
+     * @param PackageInterface[] $lockedPackages
+     *
+     * @return PackageInterface[]
+     */
+    public function removeLegacyPackages(array $data, RootPackageInterface $rootPackage, array $lockedPackages): array
+    {
+        if (!$this->symfonyConstraints || !$data) {
+            return $data;
+        }
+
+        $lockedVersions = [];
+        foreach ($lockedPackages as $package) {
+            $lockedVersions[$package->getName()] = [$package->getVersion()];
+            if ($package instanceof AliasPackage) {
+                $lockedVersions[$package->getName()][] = $package->getAliasOf()->getVersion();
+            }
+        }
+
+        $rootConstraints = [];
+        foreach ($rootPackage->getRequires() + $rootPackage->getDevRequires() as $name => $link) {
+            $rootConstraints[$name] = $link->getConstraint();
+        }
+
+        $knownVersions = $this->getVersions();
+        $filteredPackages = [];
+        $symfonyPackages = [];
+        $oneSymfony = false;
+        foreach ($data as $package) {
+            $name = $package->getName();
+            $versions = [$package->getVersion()];
+            if ($package instanceof AliasPackage) {
+                $versions[] = $package->getAliasOf()->getVersion();
+            }
+
+            if ('symfony/symfony' !== $name && (
+                !isset($knownVersions['splits'][$name])
+                || array_intersect($versions, $lockedVersions[$name] ?? [])
+                || (isset($rootConstraints[$name]) && !Intervals::haveIntersections($this->symfonyConstraints, $rootConstraints[$name]))
+            )) {
+                $filteredPackages[] = $package;
+                continue;
+            }
+
+            if (null !== $alias = $package->getExtra()['branch-alias'][$package->getVersion()] ?? null) {
+                $versions[] = $this->versionParser->normalize($alias);
+            }
+
+            foreach ($versions as $version) {
+                if ($this->symfonyConstraints->matches(new Constraint('==', $version))) {
+                    $filteredPackages[] = $package;
+                    $oneSymfony = $oneSymfony || 'symfony/symfony' === $name;
+                    continue 2;
+                }
+            }
+
+            if ('symfony/symfony' === $name) {
+                $symfonyPackages[] = $package;
+            } elseif (null !== $this->io) {
+                $this->io->writeError(sprintf('<info>Restricting packages listed in "symfony/symfony" to "%s"</>', $this->symfonyRequire));
+                $this->io = null;
+            }
+        }
+
+        if ($symfonyPackages && !$oneSymfony) {
+            $filteredPackages = array_merge($filteredPackages, $symfonyPackages);
+        }
+
+        return $filteredPackages;
+    }
+
+    private function getVersions(): array
+    {
+        if (null !== $this->versions) {
+            return $this->versions;
+        }
+
+        $versions = $this->downloader->getVersions();
+        $this->downloader = null;
+        $okVersions = [];
+
+        if (!isset($versions['splits'])) {
+            throw new \LogicException('The Flex index is missing a "splits" entry. Did you forget to add "flex://defaults" in the "extra.symfony.endpoint" array of your composer.json?');
+        }
+        foreach ($versions['splits'] as $name => $vers) {
+            foreach ($vers as $i => $v) {
+                if (!isset($okVersions[$v])) {
+                    $okVersions[$v] = false;
+                    $w = '.x' === substr($v, -2) ? $versions['next'] : $v;
+
+                    for ($j = 0; $j < 60; ++$j) {
+                        if ($this->symfonyConstraints->matches(new Constraint('==', $w.'.'.$j.'.0'))) {
+                            $okVersions[$v] = true;
+                            break;
+                        }
+                    }
+                }
+
+                if (!$okVersions[$v]) {
+                    unset($vers[$i]);
+                }
+            }
+
+            if (!$vers || $vers === $versions['splits'][$name]) {
+                unset($versions['splits'][$name]);
+            }
+        }
+
+        return $this->versions = $versions;
+    }
+}

vendor/symfony/flex/src/PackageJsonSynchronizer.php

@@ -0,0 +1,249 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Json\JsonFile;
+use Composer\Json\JsonManipulator;
+use Seld\JsonLint\ParsingException;
+
+/**
+ * Synchronize package.json files detected in installed PHP packages with
+ * the current application.
+ */
+class PackageJsonSynchronizer
+{
+    private $rootDir;
+    private $vendorDir;
+
+    public function __construct(string $rootDir, string $vendorDir = 'vendor')
+    {
+        $this->rootDir = $rootDir;
+        $this->vendorDir = $vendorDir;
+    }
+
+    public function shouldSynchronize(): bool
+    {
+        return $this->rootDir && file_exists($this->rootDir.'/package.json');
+    }
+
+    public function synchronize(array $phpPackages): bool
+    {
+        try {
+            JsonFile::parseJson(file_get_contents($this->rootDir.'/package.json'));
+        } catch (ParsingException $e) {
+            // if package.json is invalid (possible during a recipe upgrade), we can't update the file
+            return false;
+        }
+
+        $didChangePackageJson = $this->removeObsoletePackageJsonLinks();
+
+        $dependencies = [];
+
+        foreach ($phpPackages as $k => $phpPackage) {
+            if (\is_string($phpPackage)) {
+                // support for smooth upgrades from older flex versions
+                $phpPackages[$k] = $phpPackage = [
+                    'name' => $phpPackage,
+                    'keywords' => ['symfony-ux'],
+                ];
+            }
+
+            foreach ($this->resolvePackageDependencies($phpPackage) as $dependency => $constraint) {
+                $dependencies[$dependency][$phpPackage['name']] = $constraint;
+            }
+        }
+
+        $didChangePackageJson = $this->registerDependencies($dependencies) || $didChangePackageJson;
+
+        // Register controllers and entrypoints in controllers.json
+        $this->registerWebpackResources($phpPackages);
+
+        return $didChangePackageJson;
+    }
+
+    private function removeObsoletePackageJsonLinks(): bool
+    {
+        $didChangePackageJson = false;
+
+        $manipulator = new JsonManipulator(file_get_contents($this->rootDir.'/package.json'));
+        $content = json_decode($manipulator->getContents(), true);
+
+        $jsDependencies = $content['dependencies'] ?? [];
+        $jsDevDependencies = $content['devDependencies'] ?? [];
+
+        foreach (['dependencies' => $jsDependencies, 'devDependencies' => $jsDevDependencies] as $key => $packages) {
+            foreach ($packages as $name => $version) {
+                if ('@' !== $name[0] || 0 !== strpos($version, 'file:'.$this->vendorDir.'/') || false === strpos($version, '/assets')) {
+                    continue;
+                }
+                if (file_exists($this->rootDir.'/'.substr($version, 5).'/package.json')) {
+                    continue;
+                }
+
+                $manipulator->removeSubNode($key, $name);
+                $didChangePackageJson = true;
+            }
+        }
+
+        file_put_contents($this->rootDir.'/package.json', $manipulator->getContents());
+
+        return $didChangePackageJson;
+    }
+
+    private function resolvePackageDependencies($phpPackage): array
+    {
+        $dependencies = [];
+
+        if (!$packageJson = $this->resolvePackageJson($phpPackage)) {
+            return $dependencies;
+        }
+
+        $dependencies['@'.$phpPackage['name']] = 'file:'.substr($packageJson->getPath(), 1 + \strlen($this->rootDir), -13);
+
+        foreach ($packageJson->read()['peerDependencies'] ?? [] as $peerDependency => $constraint) {
+            $dependencies[$peerDependency] = $constraint;
+        }
+
+        return $dependencies;
+    }
+
+    private function registerDependencies(array $flexDependencies): bool
+    {
+        $didChangePackageJson = false;
+
+        $manipulator = new JsonManipulator(file_get_contents($this->rootDir.'/package.json'));
+        $content = json_decode($manipulator->getContents(), true);
+
+        foreach ($flexDependencies as $dependency => $constraints) {
+            if (1 !== \count($constraints) && 1 !== \count(array_count_values($constraints))) {
+                // If the flex packages have a colliding peer dependency, leave the resolution to the user
+                continue;
+            }
+
+            $constraint = array_shift($constraints);
+
+            $parentNode = isset($content['dependencies'][$dependency]) ? 'dependencies' : 'devDependencies';
+            if (!isset($content[$parentNode][$dependency])) {
+                $content['devDependencies'][$dependency] = $constraint;
+                $didChangePackageJson = true;
+            } elseif ($constraint !== $content[$parentNode][$dependency]) {
+                $content[$parentNode][$dependency] = $constraint;
+                $didChangePackageJson = true;
+            }
+        }
+
+        if ($didChangePackageJson) {
+            if (isset($content['dependencies'])) {
+                $manipulator->addMainKey('dependencies', $content['dependencies']);
+            }
+
+            if (isset($content['devDependencies'])) {
+                $devDependencies = $content['devDependencies'];
+                uksort($devDependencies, 'strnatcmp');
+                $manipulator->addMainKey('devDependencies', $devDependencies);
+            }
+
+            $newContents = $manipulator->getContents();
+            if ($newContents === file_get_contents($this->rootDir.'/package.json')) {
+                return false;
+            }
+
+            file_put_contents($this->rootDir.'/package.json', $manipulator->getContents());
+        }
+
+        return $didChangePackageJson;
+    }
+
+    private function registerWebpackResources(array $phpPackages)
+    {
+        if (!file_exists($controllersJsonPath = $this->rootDir.'/assets/controllers.json')) {
+            return;
+        }
+
+        $previousControllersJson = (new JsonFile($controllersJsonPath))->read();
+        $newControllersJson = [
+            'controllers' => [],
+            'entrypoints' => $previousControllersJson['entrypoints'],
+        ];
+
+        foreach ($phpPackages as $phpPackage) {
+            if (!$packageJson = $this->resolvePackageJson($phpPackage)) {
+                continue;
+            }
+            $name = '@'.$phpPackage['name'];
+
+            foreach ($packageJson->read()['symfony']['controllers'] ?? [] as $controllerName => $defaultConfig) {
+                // If the package has just been added (no config), add the default config provided by the package
+                if (!isset($previousControllersJson['controllers'][$name][$controllerName])) {
+                    $config = [];
+                    $config['enabled'] = $defaultConfig['enabled'];
+                    $config['fetch'] = $defaultConfig['fetch'] ?? 'eager';
+
+                    if (isset($defaultConfig['autoimport'])) {
+                        $config['autoimport'] = $defaultConfig['autoimport'];
+                    }
+
+                    $newControllersJson['controllers'][$name][$controllerName] = $config;
+
+                    continue;
+                }
+
+                // Otherwise, the package exists: merge new config with user config
+                $previousConfig = $previousControllersJson['controllers'][$name][$controllerName];
+
+                $config = [];
+                $config['enabled'] = $previousConfig['enabled'];
+                $config['fetch'] = $previousConfig['fetch'] ?? 'eager';
+
+                if (isset($defaultConfig['autoimport'])) {
+                    $config['autoimport'] = [];
+
+                    // Use for each autoimport either the previous config if one existed or the default config otherwise
+                    foreach ($defaultConfig['autoimport'] as $autoimport => $enabled) {
+                        $config['autoimport'][$autoimport] = $previousConfig['autoimport'][$autoimport] ?? $enabled;
+                    }
+                }
+
+                $newControllersJson['controllers'][$name][$controllerName] = $config;
+            }
+
+            foreach ($packageJson->read()['symfony']['entrypoints'] ?? [] as $entrypoint => $filename) {
+                if (!isset($newControllersJson['entrypoints'][$entrypoint])) {
+                    $newControllersJson['entrypoints'][$entrypoint] = $filename;
+                }
+            }
+        }
+
+        file_put_contents($controllersJsonPath, json_encode($newControllersJson, \JSON_PRETTY_PRINT | \JSON_UNESCAPED_SLASHES)."\n");
+    }
+
+    private function resolvePackageJson(array $phpPackage): ?JsonFile
+    {
+        $packageDir = $this->rootDir.'/'.$this->vendorDir.'/'.$phpPackage['name'];
+
+        if (!\in_array('symfony-ux', $phpPackage['keywords'] ?? [], true)) {
+            return null;
+        }
+
+        foreach (['/assets', '/Resources/assets', '/src/Resources/assets'] as $subdir) {
+            $packageJsonPath = $packageDir.$subdir.'/package.json';
+
+            if (!file_exists($packageJsonPath)) {
+                continue;
+            }
+
+            return new JsonFile($packageJsonPath);
+        }
+
+        return null;
+    }
+}

vendor/symfony/flex/src/PackageResolver.php

@@ -0,0 +1,145 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Factory;
+use Composer\Package\Version\VersionParser;
+use Composer\Repository\PlatformRepository;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class PackageResolver
+{
+    private static $SYMFONY_VERSIONS = ['lts', 'previous', 'stable', 'next', 'dev'];
+    private $downloader;
+
+    public function __construct(Downloader $downloader)
+    {
+        $this->downloader = $downloader;
+    }
+
+    public function resolve(array $arguments = [], bool $isRequire = false): array
+    {
+        // first pass split on : and = to resolve package names
+        $packages = [];
+        foreach ($arguments as $i => $argument) {
+            if ((false !== $pos = strpos($argument, ':')) || (false !== $pos = strpos($argument, '='))) {
+                $package = $this->resolvePackageName(substr($argument, 0, $pos), $i);
+                $version = substr($argument, $pos + 1);
+                $packages[] = $package.':'.$version;
+            } else {
+                $packages[] = $this->resolvePackageName($argument, $i);
+            }
+        }
+
+        // second pass to resolve versions
+        $versionParser = new VersionParser();
+        $requires = [];
+        foreach ($versionParser->parseNameVersionPairs($packages) as $package) {
+            $requires[] = $package['name'].$this->parseVersion($package['name'], $package['version'] ?? '', $isRequire);
+        }
+
+        return array_unique($requires);
+    }
+
+    public function parseVersion(string $package, string $version, bool $isRequire): string
+    {
+        if (0 !== strpos($package, 'symfony/')) {
+            return $version ? ':'.$version : '';
+        }
+
+        $versions = $this->downloader->getVersions();
+
+        if (!isset($versions['splits'][$package])) {
+            return $version ? ':'.$version : '';
+        }
+
+        if (!$version || '*' === $version) {
+            try {
+                $config = @json_decode(file_get_contents(Factory::getComposerFile()), true);
+            } finally {
+                if (!$isRequire || !(isset($config['extra']['symfony']['require']) || isset($config['require']['symfony/framework-bundle']))) {
+                    return '';
+                }
+            }
+            $version = $config['extra']['symfony']['require'] ?? $config['require']['symfony/framework-bundle'];
+        } elseif ('dev' === $version) {
+            $version = '^'.$versions['dev-name'].'@dev';
+        } elseif ('next' === $version) {
+            $version = '^'.$versions[$version].'@dev';
+        } elseif (\in_array($version, self::$SYMFONY_VERSIONS, true)) {
+            $version = '^'.$versions[$version];
+        }
+
+        return ':'.$version;
+    }
+
+    private function resolvePackageName(string $argument, int $position): string
+    {
+        if (false !== strpos($argument, '/') || preg_match(PlatformRepository::PLATFORM_PACKAGE_REGEX, $argument) || preg_match('{(?<=[a-z0-9_/-])\*|\*(?=[a-z0-9_/-])}i', $argument) || \in_array($argument, ['lock', 'mirrors', 'nothing', ''])) {
+            return $argument;
+        }
+
+        $aliases = $this->downloader->getAliases();
+
+        if (isset($aliases[$argument])) {
+            $argument = $aliases[$argument];
+        } else {
+            // is it a version or an alias that does not exist?
+            try {
+                $versionParser = new VersionParser();
+                $versionParser->parseConstraints($argument);
+            } catch (\UnexpectedValueException $e) {
+                // is it a special Symfony version?
+                if (!\in_array($argument, self::$SYMFONY_VERSIONS, true)) {
+                    $this->throwAlternatives($argument, $position);
+                }
+            }
+        }
+
+        return $argument;
+    }
+
+    /**
+     * @throws \UnexpectedValueException
+     */
+    private function throwAlternatives(string $argument, int $position)
+    {
+        $alternatives = [];
+        foreach ($this->downloader->getAliases() as $alias => $package) {
+            $lev = levenshtein($argument, $alias);
+            if ($lev <= \strlen($argument) / 3 || ('' !== $argument && false !== strpos($alias, $argument))) {
+                $alternatives[$package][] = $alias;
+            }
+        }
+
+        // First position can only be a package name, not a version
+        if ($alternatives || 0 === $position) {
+            $message = sprintf('"%s" is not a valid alias.', $argument);
+            if ($alternatives) {
+                if (1 === \count($alternatives)) {
+                    $message .= " Did you mean this:\n";
+                } else {
+                    $message .= " Did you mean one of these:\n";
+                }
+                foreach ($alternatives as $package => $aliases) {
+                    $message .= sprintf("  \"%s\", supported aliases: \"%s\"\n", $package, implode('", "', $aliases));
+                }
+            }
+        } else {
+            $message = sprintf('Could not parse version constraint "%s".', $argument);
+        }
+
+        throw new \UnexpectedValueException($message);
+    }
+}

vendor/symfony/flex/src/ParallelDownloader.php

@@ -0,0 +1,287 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Config;
+use Composer\Downloader\TransportException;
+use Composer\IO\IOInterface;
+use Composer\Util\RemoteFilesystem;
+
+/**
+ * Speedup Composer by downloading packages in parallel.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ParallelDownloader extends RemoteFilesystem
+{
+    private $io;
+    private $downloader;
+    private $quiet = true;
+    private $progress = true;
+    private $nextCallback;
+    private $downloadCount;
+    private $nextOptions = [];
+    private $sharedState;
+    private $fileName;
+    private $lastHeaders;
+
+    public static $cacheNext = false;
+    protected static $cache = [];
+
+    public function __construct(IOInterface $io, Config $config, array $options = [], $disableTls = false)
+    {
+        $this->io = $io;
+        if (!method_exists(parent::class, 'getRemoteContents')) {
+            $this->io->writeError('Composer >=1.7 not found, downloads will happen in sequence', true, IOInterface::DEBUG);
+        } elseif (!\extension_loaded('curl')) {
+            $this->io->writeError('ext-curl not found, downloads will happen in sequence', true, IOInterface::DEBUG);
+        } else {
+            $this->downloader = new CurlDownloader();
+        }
+        parent::__construct($io, $config, $options, $disableTls);
+    }
+
+    public function download(array &$nextArgs, callable $nextCallback, bool $quiet = true, bool $progress = true)
+    {
+        $previousState = [$this->quiet, $this->progress, $this->downloadCount, $this->nextCallback, $this->sharedState];
+        $this->quiet = $quiet;
+        $this->progress = $progress;
+        $this->downloadCount = \count($nextArgs);
+        $this->nextCallback = $nextCallback;
+        $this->sharedState = (object) [
+            'bytesMaxCount' => 0,
+            'bytesMax' => 0,
+            'bytesTransferred' => 0,
+            'nextArgs' => &$nextArgs,
+            'nestingLevel' => 0,
+            'maxNestingReached' => false,
+            'lastProgress' => 0,
+            'lastUpdate' => microtime(true),
+        ];
+
+        if (!$this->quiet) {
+            if (!$this->downloader && method_exists(parent::class, 'getRemoteContents')) {
+                $this->io->writeError('<warning>Enable the "cURL" PHP extension for faster downloads</>');
+            }
+
+            $note = '';
+            if ($this->io->isDecorated()) {
+                $note = '\\' === \DIRECTORY_SEPARATOR ? '' : (false !== stripos(\PHP_OS, 'darwin') ? '🎵' : '🎶');
+                $note .= $this->downloader ? ('\\' !== \DIRECTORY_SEPARATOR ? ' 💨' : '') : '';
+            }
+
+            $this->io->writeError('');
+            $this->io->writeError(sprintf('<info>Prefetching %d packages</> %s', $this->downloadCount, $note));
+            $this->io->writeError('  - Downloading', false);
+            if ($this->progress) {
+                $this->io->writeError(' (<comment>0%</>)', false);
+            }
+        }
+        try {
+            $this->getNext();
+            if ($this->quiet) {
+                // no-op
+            } elseif ($this->progress) {
+                $this->io->overwriteError(' (<comment>100%</>)');
+            } else {
+                $this->io->writeError(' (<comment>100%</>)');
+            }
+        } finally {
+            if (!$this->quiet) {
+                $this->io->writeError('');
+            }
+            list($this->quiet, $this->progress, $this->downloadCount, $this->nextCallback, $this->sharedState) = $previousState;
+        }
+    }
+
+    public function getOptions()
+    {
+        $options = array_replace_recursive(parent::getOptions(), $this->nextOptions);
+        $this->nextOptions = [];
+
+        return $options;
+    }
+
+    public function setNextOptions(array $options)
+    {
+        $this->nextOptions = parent::getOptions() !== $options ? $options : [];
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getLastHeaders()
+    {
+        return $this->lastHeaders ?? parent::getLastHeaders();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function copy($originUrl, $fileUrl, $fileName, $progress = true, $options = [])
+    {
+        $options = array_replace_recursive($this->nextOptions, $options);
+        $this->nextOptions = [];
+        $rfs = clone $this;
+        $rfs->fileName = $fileName;
+        $rfs->progress = $this->progress && $progress;
+
+        try {
+            return $rfs->get($originUrl, $fileUrl, $options, $fileName, $rfs->progress);
+        } finally {
+            $rfs->lastHeaders = null;
+            $this->lastHeaders = $rfs->getLastHeaders();
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getContents($originUrl, $fileUrl, $progress = true, $options = [])
+    {
+        return $this->copy($originUrl, $fileUrl, null, $progress, $options);
+    }
+
+    /**
+     * @internal
+     */
+    public function callbackGet($notificationCode, $severity, $message, $messageCode, $bytesTransferred, $bytesMax, $nativeDownload = true)
+    {
+        if (!$nativeDownload && \STREAM_NOTIFY_SEVERITY_ERR === $severity) {
+            throw new TransportException($message, $messageCode);
+        }
+
+        parent::callbackGet($notificationCode, $severity, $message, $messageCode, $bytesTransferred, $bytesMax);
+
+        if (!$state = $this->sharedState) {
+            return;
+        }
+
+        if (\STREAM_NOTIFY_FILE_SIZE_IS === $notificationCode) {
+            ++$state->bytesMaxCount;
+            $state->bytesMax += $bytesMax;
+        }
+
+        if (!$bytesMax || \STREAM_NOTIFY_PROGRESS !== $notificationCode) {
+            if ($state->nextArgs && !$nativeDownload) {
+                $this->getNext();
+            }
+
+            return;
+        }
+
+        if (0 < $state->bytesMax) {
+            $progress = $state->bytesMaxCount / $this->downloadCount;
+            $progress *= 100 * ($state->bytesTransferred + $bytesTransferred) / $state->bytesMax;
+        } else {
+            $progress = 0;
+        }
+
+        if ($bytesTransferred === $bytesMax) {
+            $state->bytesTransferred += $bytesMax;
+        }
+
+        if (null !== $state->nextArgs && !$this->quiet && $this->progress && 1 <= $progress - $state->lastProgress) {
+            $progressTime = microtime(true);
+
+            if (5 <= $progress - $state->lastProgress || 1 <= $progressTime - $state->lastUpdate) {
+                $state->lastProgress = $progress;
+                $this->io->overwriteError(sprintf(' (<comment>%d%%</>)', $progress), false);
+                $state->lastUpdate = microtime(true);
+            }
+        }
+
+        if (!$nativeDownload || !$state->nextArgs || $bytesTransferred === $bytesMax || $state->maxNestingReached) {
+            return;
+        }
+
+        if (5 < $state->nestingLevel) {
+            $state->maxNestingReached = true;
+        } else {
+            $this->getNext();
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getRemoteContents($originUrl, $fileUrl, $context, array &$responseHeaders = null, $maxFileSize = null)
+    {
+        if (isset(self::$cache[$fileUrl])) {
+            self::$cacheNext = false;
+
+            $result = self::$cache[$fileUrl];
+
+            if (3 < \func_num_args()) {
+                list($responseHeaders, $result) = $result;
+            }
+
+            return $result;
+        }
+
+        if (self::$cacheNext) {
+            self::$cacheNext = false;
+
+            if (3 < \func_num_args()) {
+                $result = $this->getRemoteContents($originUrl, $fileUrl, $context, $responseHeaders, $maxFileSize);
+                self::$cache[$fileUrl] = [$responseHeaders, $result];
+            } else {
+                $result = $this->getRemoteContents($originUrl, $fileUrl, $context);
+                self::$cache[$fileUrl] = $result;
+            }
+
+            return $result;
+        }
+
+        if (!$this->downloader || !preg_match('/^https?:/', $fileUrl)) {
+            return parent::getRemoteContents($originUrl, $fileUrl, $context, $responseHeaders, $maxFileSize);
+        }
+
+        try {
+            $result = $this->downloader->get($originUrl, $fileUrl, $context, $this->fileName);
+
+            if (3 < \func_num_args()) {
+                list($responseHeaders, $result) = $result;
+            }
+
+            return $result;
+        } catch (TransportException $e) {
+            $this->io->writeError('Retrying download: '.$e->getMessage(), true, IOInterface::DEBUG);
+
+            return parent::getRemoteContents($originUrl, $fileUrl, $context, $responseHeaders, $maxFileSize);
+        } catch (\Throwable $e) {
+            $responseHeaders = [];
+            throw $e;
+        }
+    }
+
+    private function getNext()
+    {
+        $state = $this->sharedState;
+        ++$state->nestingLevel;
+
+        try {
+            while ($state->nextArgs && (!$state->maxNestingReached || 1 === $state->nestingLevel)) {
+                try {
+                    $state->maxNestingReached = false;
+                    ($this->nextCallback)(...array_shift($state->nextArgs));
+                } catch (TransportException $e) {
+                    $this->io->writeError('Skipping download: '.$e->getMessage(), true, IOInterface::DEBUG);
+                }
+            }
+        } finally {
+            --$state->nestingLevel;
+        }
+    }
+}

vendor/symfony/flex/src/Path.php

@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+/**
+ * @internal
+ */
+class Path
+{
+    private $workingDirectory;
+
+    public function __construct($workingDirectory)
+    {
+        $this->workingDirectory = $workingDirectory;
+    }
+
+    public function relativize(string $absolutePath): string
+    {
+        $relativePath = str_replace($this->workingDirectory, '.', $absolutePath);
+
+        return is_dir($absolutePath) ? rtrim($relativePath, '/').'/' : $relativePath;
+    }
+
+    public function concatenate(array $parts): string
+    {
+        $first = array_shift($parts);
+
+        return array_reduce($parts, function (string $initial, string $next): string {
+            return rtrim($initial, '/').'/'.ltrim($next, '/');
+        }, $first);
+    }
+}

vendor/symfony/flex/src/Recipe.php

@@ -0,0 +1,123 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Package\PackageInterface;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Recipe
+{
+    private $package;
+    private $name;
+    private $job;
+    private $data;
+    private $lock;
+
+    public function __construct(PackageInterface $package, string $name, string $job, array $data, array $lock = [])
+    {
+        $this->package = $package;
+        $this->name = $name;
+        $this->job = $job;
+        $this->data = $data;
+        $this->lock = $lock;
+    }
+
+    public function getPackage(): PackageInterface
+    {
+        return $this->package;
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function getJob(): string
+    {
+        return $this->job;
+    }
+
+    public function getManifest(): array
+    {
+        if (!isset($this->data['manifest'])) {
+            throw new \LogicException(sprintf('Manifest is not available for recipe "%s".', $this->name));
+        }
+
+        return $this->data['manifest'];
+    }
+
+    public function getFiles(): array
+    {
+        return $this->data['files'] ?? [];
+    }
+
+    public function getOrigin(): string
+    {
+        return $this->data['origin'] ?? '';
+    }
+
+    public function getFormattedOrigin(): string
+    {
+        if (!$this->getOrigin()) {
+            return '';
+        }
+
+        // symfony/translation:3.3@github.com/symfony/recipes:branch
+        if (!preg_match('/^([^:]++):([^@]++)@(.+)$/', $this->getOrigin(), $matches)) {
+            return $this->getOrigin();
+        }
+
+        return sprintf('<info>%s</> (<comment>>=%s</>): From %s', $matches[1], $matches[2], 'auto-generated recipe' === $matches[3] ? '<comment>'.$matches[3].'</>' : $matches[3]);
+    }
+
+    public function getURL(): string
+    {
+        if (!$this->data['origin']) {
+            return '';
+        }
+
+        // symfony/translation:3.3@github.com/symfony/recipes:branch
+        if (!preg_match('/^([^:]++):([^@]++)@([^:]++):(.+)$/', $this->data['origin'], $matches)) {
+            // that excludes auto-generated recipes, which is what we want
+            return '';
+        }
+
+        return sprintf('https://%s/tree/%s/%s/%s', $matches[3], $matches[4], $matches[1], $matches[2]);
+    }
+
+    public function isContrib(): bool
+    {
+        return $this->data['is_contrib'] ?? false;
+    }
+
+    public function getRef()
+    {
+        return $this->lock['recipe']['ref'] ?? null;
+    }
+
+    public function isAuto(): bool
+    {
+        return !isset($this->lock['recipe']);
+    }
+
+    public function getVersion(): string
+    {
+        return $this->lock['recipe']['version'] ?? $this->lock['version'];
+    }
+
+    public function getLock(): array
+    {
+        return $this->lock;
+    }
+}

vendor/symfony/flex/src/Response.php

@@ -0,0 +1,87 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Response implements \JsonSerializable
+{
+    private $body;
+    private $origHeaders;
+    private $headers;
+    private $code;
+
+    /**
+     * @param mixed $body The response as JSON
+     */
+    public function __construct($body, array $headers = [], int $code = 200)
+    {
+        $this->body = $body;
+        $this->origHeaders = $headers;
+        $this->headers = $this->parseHeaders($headers);
+        $this->code = $code;
+    }
+
+    public function getStatusCode(): int
+    {
+        return $this->code;
+    }
+
+    public function getHeader(string $name): string
+    {
+        return $this->headers[strtolower($name)][0] ?? '';
+    }
+
+    public function getHeaders(string $name): array
+    {
+        return $this->headers[strtolower($name)] ?? [];
+    }
+
+    public function getBody()
+    {
+        return $this->body;
+    }
+
+    public function getOrigHeaders(): array
+    {
+        return $this->origHeaders;
+    }
+
+    public static function fromJson(array $json): self
+    {
+        $response = new self($json['body']);
+        $response->headers = $json['headers'];
+
+        return $response;
+    }
+
+    #[\ReturnTypeWillChange]
+    public function jsonSerialize()
+    {
+        return ['body' => $this->body, 'headers' => $this->headers];
+    }
+
+    private function parseHeaders(array $headers): array
+    {
+        $values = [];
+        foreach (array_reverse($headers) as $header) {
+            if (preg_match('{^([^:]++):\s*(.+?)\s*$}i', $header, $match)) {
+                $values[strtolower($match[1])][] = $match[2];
+            } elseif (preg_match('{^HTTP/}i', $header)) {
+                break;
+            }
+        }
+
+        return $values;
+    }
+}

vendor/symfony/flex/src/ScriptExecutor.php

@@ -0,0 +1,135 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Composer;
+use Composer\EventDispatcher\ScriptExecutionException;
+use Composer\IO\IOInterface;
+use Composer\Semver\Constraint\EmptyConstraint;
+use Composer\Semver\Constraint\MatchAllConstraint;
+use Composer\Util\ProcessExecutor;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Output\StreamOutput;
+use Symfony\Component\Process\PhpExecutableFinder;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class ScriptExecutor
+{
+    private $composer;
+    private $io;
+    private $options;
+    private $executor;
+
+    public function __construct(Composer $composer, IOInterface $io, Options $options, ProcessExecutor $executor = null)
+    {
+        $this->composer = $composer;
+        $this->io = $io;
+        $this->options = $options;
+        $this->executor = $executor ?: new ProcessExecutor();
+    }
+
+    /**
+     * @throws ScriptExecutionException if the executed command returns a non-0 exit code
+     */
+    public function execute(string $type, string $cmd)
+    {
+        $parsedCmd = $this->options->expandTargetDir($cmd);
+        if (null === $expandedCmd = $this->expandCmd($type, $parsedCmd)) {
+            return;
+        }
+
+        $cmdOutput = new StreamOutput(fopen('php://temp', 'rw'), OutputInterface::VERBOSITY_VERBOSE, $this->io->isDecorated());
+        $outputHandler = function ($type, $buffer) use ($cmdOutput) {
+            $cmdOutput->write($buffer, false, OutputInterface::OUTPUT_RAW);
+        };
+
+        $this->io->writeError(sprintf('Executing script %s', $parsedCmd), $this->io->isVerbose());
+        $exitCode = $this->executor->execute($expandedCmd, $outputHandler);
+
+        $code = 0 === $exitCode ? ' <info>[OK]</>' : ' <error>[KO]</>';
+
+        if ($this->io->isVerbose()) {
+            $this->io->writeError(sprintf('Executed script %s %s', $cmd, $code));
+        } else {
+            $this->io->writeError($code);
+        }
+
+        if (0 !== $exitCode) {
+            $this->io->writeError(' <error>[KO]</>');
+            $this->io->writeError(sprintf('<error>Script %s returned with error code %s</>', $cmd, $exitCode));
+            fseek($cmdOutput->getStream(), 0);
+            foreach (explode("\n", stream_get_contents($cmdOutput->getStream())) as $line) {
+                $this->io->writeError('!!  '.$line);
+            }
+
+            throw new ScriptExecutionException($cmd, $exitCode);
+        }
+    }
+
+    private function expandCmd(string $type, string $cmd)
+    {
+        switch ($type) {
+            case 'symfony-cmd':
+                return $this->expandSymfonyCmd($cmd);
+            case 'php-script':
+                return $this->expandPhpScript($cmd);
+            case 'script':
+                return $cmd;
+            default:
+                throw new \InvalidArgumentException(sprintf('Invalid symfony/flex auto-script in composer.json: "%s" is not a valid type of command.', $type));
+        }
+    }
+
+    private function expandSymfonyCmd(string $cmd)
+    {
+        $repo = $this->composer->getRepositoryManager()->getLocalRepository();
+        if (!$repo->findPackage('symfony/console', class_exists(MatchAllConstraint::class) ? new MatchAllConstraint() : new EmptyConstraint())) {
+            $this->io->writeError(sprintf('<warning>Skipping "%s" (needs symfony/console to run).</>', $cmd));
+
+            return null;
+        }
+
+        $console = ProcessExecutor::escape($this->options->get('root-dir').'/'.$this->options->get('bin-dir').'/console');
+        if ($this->io->isDecorated()) {
+            $console .= ' --ansi';
+        }
+
+        return $this->expandPhpScript($console.' '.$cmd);
+    }
+
+    private function expandPhpScript(string $cmd): string
+    {
+        $phpFinder = new PhpExecutableFinder();
+        if (!$php = $phpFinder->find(false)) {
+            throw new \RuntimeException('The PHP executable could not be found, add it to your PATH and try again.');
+        }
+
+        $arguments = $phpFinder->findArguments();
+
+        if ($env = (string) (getenv('COMPOSER_ORIGINAL_INIS'))) {
+            $paths = explode(\PATH_SEPARATOR, $env);
+            $ini = array_shift($paths);
+        } else {
+            $ini = php_ini_loaded_file();
+        }
+
+        if ($ini) {
+            $arguments[] = '--php-ini='.$ini;
+        }
+
+        $phpArgs = implode(' ', array_map([ProcessExecutor::class, 'escape'], $arguments));
+
+        return ProcessExecutor::escape($php).($phpArgs ? ' '.$phpArgs : '').' '.$cmd;
+    }
+}

vendor/symfony/flex/src/SymfonyBundle.php

@@ -0,0 +1,112 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Composer;
+use Composer\Package\PackageInterface;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class SymfonyBundle
+{
+    private $package;
+    private $operation;
+    private $vendorDir;
+
+    public function __construct(Composer $composer, PackageInterface $package, string $operation)
+    {
+        $this->package = $package;
+        $this->operation = $operation;
+        $this->vendorDir = rtrim($composer->getConfig()->get('vendor-dir'), '/');
+    }
+
+    public function getClassNames(): array
+    {
+        $uninstall = 'uninstall' === $this->operation;
+        $classes = [];
+        $autoload = $this->package->getAutoload();
+        $isSyliusPlugin = 'sylius-plugin' === $this->package->getType();
+        foreach (['psr-4' => true, 'psr-0' => false] as $psr => $isPsr4) {
+            if (!isset($autoload[$psr])) {
+                continue;
+            }
+
+            foreach ($autoload[$psr] as $namespace => $paths) {
+                if (!\is_array($paths)) {
+                    $paths = [$paths];
+                }
+                foreach ($paths as $path) {
+                    foreach ($this->extractClassNames($namespace, $isSyliusPlugin) as $class) {
+                        // we only check class existence on install as we do have the code available
+                        // in contrast to uninstall operation
+                        if (!$uninstall && !$this->isBundleClass($class, $path, $isPsr4)) {
+                            continue;
+                        }
+
+                        $classes[] = $class;
+                    }
+                }
+            }
+        }
+
+        return $classes;
+    }
+
+    private function extractClassNames(string $namespace, bool $isSyliusPlugin): array
+    {
+        $namespace = trim($namespace, '\\');
+        $class = $namespace.'\\';
+        $parts = explode('\\', $namespace);
+        $suffix = $parts[\count($parts) - 1];
+        $endOfWord = substr($suffix, -6);
+
+        if ($isSyliusPlugin) {
+            if ('Bundle' !== $endOfWord && 'Plugin' !== $endOfWord) {
+                $suffix .= 'Bundle';
+            }
+        } elseif ('Bundle' !== $endOfWord) {
+            $suffix .= 'Bundle';
+        }
+
+        $classes = [$class.$suffix];
+        $acc = '';
+        foreach (\array_slice($parts, 0, -1) as $part) {
+            if ('Bundle' === $part || ($isSyliusPlugin && 'Plugin' === $part)) {
+                continue;
+            }
+            $classes[] = $class.$part.$suffix;
+            $acc .= $part;
+            $classes[] = $class.$acc.$suffix;
+        }
+
+        return array_unique($classes);
+    }
+
+    private function isBundleClass(string $class, string $path, bool $isPsr4): bool
+    {
+        $classPath = ($this->vendorDir ? $this->vendorDir.'/' : '').$this->package->getPrettyName().'/'.$path.'/';
+        $parts = explode('\\', $class);
+        $class = $parts[\count($parts) - 1];
+        if (!$isPsr4) {
+            $classPath .= str_replace('\\', '', implode('/', \array_slice($parts, 0, -1))).'/';
+        }
+        $classPath .= str_replace('\\', '/', $class).'.php';
+
+        if (!file_exists($classPath)) {
+            return false;
+        }
+
+        // heuristic that should work in almost all cases
+        return false !== strpos(file_get_contents($classPath), 'Symfony\Component\HttpKernel\Bundle\Bundle');
+    }
+}

vendor/symfony/flex/src/TruncatedComposerRepository.php

@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Config;
+use Composer\EventDispatcher\EventDispatcher;
+use Composer\IO\IOInterface;
+use Composer\Package\RootPackageInterface;
+use Composer\Repository\ComposerRepository as BaseComposerRepository;
+use Composer\Util\RemoteFilesystem;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class TruncatedComposerRepository extends BaseComposerRepository
+{
+    public function __construct(array $repoConfig, IOInterface $io, Config $config, EventDispatcher $eventDispatcher = null, RemoteFilesystem $rfs = null)
+    {
+        parent::__construct($repoConfig, $io, $config, $eventDispatcher, $rfs);
+
+        $this->cache = new Cache($io, $config->get('cache-repo-dir').'/'.preg_replace('{[^a-z0-9.]}i', '-', $this->url), 'a-z0-9.$');
+    }
+
+    public function setSymfonyRequire(string $symfonyRequire, RootPackageInterface $rootPackage, Downloader $downloader, IOInterface $io)
+    {
+        $this->cache->setSymfonyRequire($symfonyRequire, $rootPackage, $downloader, $io);
+    }
+
+    protected function fetchFile($filename, $cacheKey = null, $sha256 = null, $storeLastModifiedTime = false)
+    {
+        $data = parent::fetchFile($filename, $cacheKey, $sha256, $storeLastModifiedTime);
+
+        return \is_array($data) ? $this->cache->removeLegacyTags($data) : $data;
+    }
+}

vendor/symfony/flex/src/Unpack/Operation.php

@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Unpack;
+
+class Operation
+{
+    private $packages = [];
+    private $unpack;
+    private $sort;
+
+    public function __construct(bool $unpack, bool $sort)
+    {
+        $this->unpack = $unpack;
+        $this->sort = $sort;
+    }
+
+    public function addPackage(string $name, string $version, bool $dev)
+    {
+        $this->packages[] = [
+            'name' => $name,
+            'version' => $version,
+            'dev' => $dev,
+        ];
+    }
+
+    public function getPackages(): array
+    {
+        return $this->packages;
+    }
+
+    public function shouldUnpack(): bool
+    {
+        return $this->unpack;
+    }
+
+    public function shouldSort(): bool
+    {
+        return $this->sort;
+    }
+}

vendor/symfony/flex/src/Unpack/Result.php

@@ -0,0 +1,55 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Unpack;
+
+use Composer\Package\PackageInterface;
+
+class Result
+{
+    private $unpacked = [];
+    private $required = [];
+
+    public function addUnpacked(PackageInterface $package): bool
+    {
+        $name = $package->getName();
+
+        if (!isset($this->unpacked[$name])) {
+            $this->unpacked[$name] = $package;
+
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * @return PackageInterface[]
+     */
+    public function getUnpacked(): array
+    {
+        return $this->unpacked;
+    }
+
+    public function addRequired(string $package)
+    {
+        $this->required[] = $package;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getRequired(): array
+    {
+        // we need at least one package for the command to work properly
+        return $this->required ?: ['symfony/flex'];
+    }
+}

vendor/symfony/flex/src/Unpacker.php

@@ -0,0 +1,215 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex;
+
+use Composer\Composer;
+use Composer\Config\JsonConfigSource;
+use Composer\DependencyResolver\Pool;
+use Composer\Factory;
+use Composer\IO\IOInterface;
+use Composer\Json\JsonFile;
+use Composer\Json\JsonManipulator;
+use Composer\Package\Locker;
+use Composer\Package\Version\VersionSelector;
+use Composer\Plugin\PluginInterface;
+use Composer\Repository\CompositeRepository;
+use Composer\Repository\RepositorySet;
+use Composer\Semver\VersionParser;
+use Symfony\Flex\Unpack\Operation;
+use Symfony\Flex\Unpack\Result;
+
+class Unpacker
+{
+    private $composer;
+    private $resolver;
+    private $dryRun;
+    private $versionParser;
+
+    public function __construct(Composer $composer, PackageResolver $resolver, bool $dryRun)
+    {
+        $this->composer = $composer;
+        $this->resolver = $resolver;
+        $this->dryRun = $dryRun;
+        $this->versionParser = new VersionParser();
+    }
+
+    public function unpack(Operation $op, Result $result = null, &$links = [], bool $devRequire = false): Result
+    {
+        if (null === $result) {
+            $result = new Result();
+        }
+
+        $localRepo = $this->composer->getRepositoryManager()->getLocalRepository();
+        foreach ($op->getPackages() as $package) {
+            $pkg = $localRepo->findPackage($package['name'], '*');
+            $pkg = $pkg ?? $this->composer->getRepositoryManager()->findPackage($package['name'], $package['version'] ?: '*');
+
+            // not unpackable or no --unpack flag or empty packs (markers)
+            if (
+                null === $pkg ||
+                'symfony-pack' !== $pkg->getType() ||
+                !$op->shouldUnpack() ||
+                0 === \count($pkg->getRequires()) + \count($pkg->getDevRequires())
+            ) {
+                $result->addRequired($package['name'].($package['version'] ? ':'.$package['version'] : ''));
+
+                continue;
+            }
+
+            if (!$result->addUnpacked($pkg)) {
+                continue;
+            }
+
+            $requires = [];
+            foreach ($pkg->getRequires() as $link) {
+                $requires[$link->getTarget()] = $link;
+            }
+            $devRequires = $pkg->getDevRequires();
+
+            foreach ($devRequires as $i => $link) {
+                if (!isset($requires[$link->getTarget()])) {
+                    throw new \RuntimeException(sprintf('Symfony pack "%s" must duplicate all entries from "require-dev" into "require" but entry "%s" was not found.', $package['name'], $link->getTarget()));
+                }
+                $devRequires[$i] = $requires[$link->getTarget()];
+                unset($requires[$link->getTarget()]);
+            }
+
+            $versionSelector = null;
+            foreach ([$requires, $devRequires] as $dev => $requires) {
+                $dev = $dev ?: $devRequire ?: $package['dev'];
+
+                foreach ($requires as $link) {
+                    if ('php' === $linkName = $link->getTarget()) {
+                        continue;
+                    }
+
+                    $constraint = $link->getPrettyConstraint();
+                    $constraint = substr($this->resolver->parseVersion($linkName, $constraint, true), 1) ?: $constraint;
+
+                    if ($subPkg = $localRepo->findPackage($linkName, '*')) {
+                        if ('symfony-pack' === $subPkg->getType()) {
+                            $subOp = new Operation(true, $op->shouldSort());
+                            $subOp->addPackage($subPkg->getName(), $constraint, $dev);
+                            $result = $this->unpack($subOp, $result, $links, $dev);
+                            continue;
+                        }
+
+                        if ('*' === $constraint) {
+                            if (null === $versionSelector) {
+                                $pool = class_exists(RepositorySet::class) ? RepositorySet::class : Pool::class;
+                                $pool = new $pool($this->composer->getPackage()->getMinimumStability(), $this->composer->getPackage()->getStabilityFlags());
+                                $pool->addRepository(new CompositeRepository($this->composer->getRepositoryManager()->getRepositories()));
+                                $versionSelector = new VersionSelector($pool);
+                            }
+
+                            $constraint = $versionSelector->findRecommendedRequireVersion($subPkg);
+                        }
+                    }
+
+                    $linkType = $dev ? 'require-dev' : 'require';
+                    $constraint = $this->versionParser->parseConstraints($constraint);
+
+                    if (isset($links[$linkName])) {
+                        $links[$linkName]['constraints'][] = $constraint;
+                        if ('require' === $linkType) {
+                            $links[$linkName]['type'] = 'require';
+                        }
+                    } else {
+                        $links[$linkName] = [
+                            'type' => $linkType,
+                            'name' => $linkName,
+                            'constraints' => [$constraint],
+                        ];
+                    }
+                }
+            }
+        }
+
+        if ($this->dryRun || 1 < \func_num_args()) {
+            return $result;
+        }
+
+        $jsonPath = Factory::getComposerFile();
+        $jsonContent = file_get_contents($jsonPath);
+        $jsonStored = json_decode($jsonContent, true);
+        $jsonManipulator = new JsonManipulator($jsonContent);
+
+        foreach ($links as $link) {
+            // nothing to do, package is already present in the "require" section
+            if (isset($jsonStored['require'][$link['name']])) {
+                continue;
+            }
+
+            if (isset($jsonStored['require-dev'][$link['name']])) {
+                // nothing to do, package is already present in the "require-dev" section
+                if ('require-dev' === $link['type']) {
+                    continue;
+                }
+
+                // removes package from "require-dev", because it will be moved to "require"
+                // save stored constraint
+                $link['constraints'][] = $this->versionParser->parseConstraints($jsonStored['require-dev'][$link['name']]);
+                $jsonManipulator->removeSubNode('require-dev', $link['name']);
+            }
+
+            $constraint = end($link['constraints']);
+
+            if (!$jsonManipulator->addLink($link['type'], $link['name'], $constraint->getPrettyString(), $op->shouldSort())) {
+                throw new \RuntimeException(sprintf('Unable to unpack package "%s".', $link['name']));
+            }
+        }
+
+        file_put_contents($jsonPath, $jsonManipulator->getContents());
+
+        return $result;
+    }
+
+    public function updateLock(Result $result, IOInterface $io): void
+    {
+        $json = new JsonFile(Factory::getComposerFile());
+        $manipulator = new JsonConfigSource($json);
+        $locker = $this->composer->getLocker();
+        $lockData = $locker->getLockData();
+
+        foreach ($result->getUnpacked() as $package) {
+            $manipulator->removeLink('require-dev', $package->getName());
+            foreach ($lockData['packages-dev'] as $i => $pkg) {
+                if ($package->getName() === $pkg['name']) {
+                    unset($lockData['packages-dev'][$i]);
+                }
+            }
+            $manipulator->removeLink('require', $package->getName());
+            foreach ($lockData['packages'] as $i => $pkg) {
+                if ($package->getName() === $pkg['name']) {
+                    unset($lockData['packages'][$i]);
+                }
+            }
+        }
+        $jsonContent = file_get_contents($json->getPath());
+        $lockData['packages'] = array_values($lockData['packages']);
+        $lockData['packages-dev'] = array_values($lockData['packages-dev']);
+        $lockData['content-hash'] = Locker::getContentHash($jsonContent);
+        $lockFile = new JsonFile(substr($json->getPath(), 0, -4).'lock', null, $io);
+
+        if (!$this->dryRun) {
+            $lockFile->write($lockData);
+        }
+
+        // force removal of files under vendor/
+        if (version_compare('2.0.0', PluginInterface::PLUGIN_API_VERSION, '>')) {
+            $locker = new Locker($io, $lockFile, $this->composer->getRepositoryManager(), $this->composer->getInstallationManager(), $jsonContent);
+        } else {
+            $locker = new Locker($io, $lockFile, $this->composer->getInstallationManager(), $jsonContent);
+        }
+        $this->composer->setLocker($locker);
+    }
+}

vendor/symfony/flex/src/Update/DiffHelper.php

@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Update;
+
+class DiffHelper
+{
+    public static function removeFilesFromPatch(string $patch, array $files, array &$removedPatches): string
+    {
+        foreach ($files as $filename) {
+            $start = strpos($patch, sprintf('diff --git a/%s b/%s', $filename, $filename));
+            if (false === $start) {
+                throw new \LogicException(sprintf('Could not find file "%s" in the patch.', $filename));
+            }
+
+            $end = strpos($patch, 'diff --git a/', $start + 1);
+            $contentBefore = substr($patch, 0, $start);
+            if (false === $end) {
+                // last patch in the file
+                $removedPatches[$filename] = rtrim(substr($patch, $start), "\n");
+                $patch = rtrim($contentBefore, "\n");
+
+                continue;
+            }
+
+            $removedPatches[$filename] = rtrim(substr($patch, $start, $end - $start), "\n");
+            $patch = $contentBefore.substr($patch, $end);
+        }
+
+        // valid patches end with a blank line
+        if ($patch && "\n" !== substr($patch, \strlen($patch) - 1, 1)) {
+            $patch = $patch."\n";
+        }
+
+        return $patch;
+    }
+}

vendor/symfony/flex/src/Update/RecipePatch.php

@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Update;
+
+class RecipePatch
+{
+    private $patch;
+    private $blobs;
+    private $removedPatches;
+
+    public function __construct(string $patch, array $blobs, array $removedPatches = [])
+    {
+        $this->patch = $patch;
+        $this->blobs = $blobs;
+        $this->removedPatches = $removedPatches;
+    }
+
+    public function getPatch(): string
+    {
+        return $this->patch;
+    }
+
+    public function getBlobs(): array
+    {
+        return $this->blobs;
+    }
+
+    /**
+     * Patches for modified files that were removed because the file
+     * has been deleted in the user's project.
+     */
+    public function getRemovedPatches(): array
+    {
+        return $this->removedPatches;
+    }
+}

vendor/symfony/flex/src/Update/RecipePatcher.php

@@ -0,0 +1,226 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Update;
+
+use Composer\IO\IOInterface;
+use Composer\Util\ProcessExecutor;
+use Symfony\Component\Filesystem\Exception\IOException;
+use Symfony\Component\Filesystem\Filesystem;
+
+class RecipePatcher
+{
+    private $rootDir;
+    private $filesystem;
+    private $io;
+    private $processExecutor;
+
+    public function __construct(string $rootDir, IOInterface $io)
+    {
+        $this->rootDir = $rootDir;
+        $this->filesystem = new Filesystem();
+        $this->io = $io;
+        $this->processExecutor = new ProcessExecutor($io);
+    }
+
+    /**
+     * Applies the patch. If it fails unexpectedly, an exception will be thrown.
+     *
+     * @return bool returns true if fully successful, false if conflicts were encountered
+     */
+    public function applyPatch(RecipePatch $patch): bool
+    {
+        if (!$patch->getPatch()) {
+            // nothing to do!
+            return true;
+        }
+
+        $addedBlobs = $this->addMissingBlobs($patch->getBlobs());
+
+        $patchPath = $this->rootDir.'/_flex_recipe_update.patch';
+        file_put_contents($patchPath, $patch->getPatch());
+
+        try {
+            $this->execute('git update-index --refresh', $this->rootDir);
+
+            $output = '';
+            $statusCode = $this->processExecutor->execute('git apply "_flex_recipe_update.patch" -3', $output, $this->rootDir);
+
+            if (0 === $statusCode) {
+                // successful with no conflicts
+                return true;
+            }
+
+            if (false !== strpos($this->processExecutor->getErrorOutput(), 'with conflicts')) {
+                // successful with conflicts
+                return false;
+            }
+
+            throw new \LogicException('Error applying the patch: '.$this->processExecutor->getErrorOutput());
+        } finally {
+            unlink($patchPath);
+            // clean up any temporary blobs
+            foreach ($addedBlobs as $filename) {
+                unlink($filename);
+            }
+        }
+    }
+
+    public function generatePatch(array $originalFiles, array $newFiles): RecipePatch
+    {
+        // null implies "file does not exist"
+        $originalFiles = array_filter($originalFiles, function ($file) {
+            return null !== $file;
+        });
+        $newFiles = array_filter($newFiles, function ($file) {
+            return null !== $file;
+        });
+
+        // find removed files and add them so they will be deleted
+        foreach ($originalFiles as $file => $contents) {
+            if (!isset($newFiles[$file])) {
+                $newFiles[$file] = null;
+            }
+        }
+
+        // If a file is being modified, but does not exist in the current project,
+        // it cannot be patched. We generate the diff for these, but then remove
+        // it from the patch (and optionally report this diff to the user).
+        $modifiedFiles = array_intersect_key(array_keys($originalFiles), array_keys($newFiles));
+        $deletedModifiedFiles = [];
+        foreach ($modifiedFiles as $modifiedFile) {
+            if (!file_exists($this->rootDir.'/'.$modifiedFile) && $originalFiles[$modifiedFile] !== $newFiles[$modifiedFile]) {
+                $deletedModifiedFiles[] = $modifiedFile;
+            }
+        }
+
+        $tmpPath = sys_get_temp_dir().'/_flex_recipe_update'.uniqid(mt_rand(), true);
+        $this->filesystem->mkdir($tmpPath);
+
+        try {
+            $this->execute('git init', $tmpPath);
+            $this->execute('git config commit.gpgsign false', $tmpPath);
+            $this->execute('git config user.name "Flex Updater"', $tmpPath);
+            $this->execute('git config user.email ""', $tmpPath);
+
+            $blobs = [];
+            if (\count($originalFiles) > 0) {
+                $this->writeFiles($originalFiles, $tmpPath);
+                $this->execute('git add -A', $tmpPath);
+                $this->execute('git commit -m "original files"', $tmpPath);
+
+                $blobs = $this->generateBlobs($originalFiles, $tmpPath);
+            }
+
+            $this->writeFiles($newFiles, $tmpPath);
+            $this->execute('git add -A', $tmpPath);
+
+            $patchString = $this->execute('git diff --cached', $tmpPath);
+            $removedPatches = [];
+            $patchString = DiffHelper::removeFilesFromPatch($patchString, $deletedModifiedFiles, $removedPatches);
+
+            return new RecipePatch(
+                $patchString,
+                $blobs,
+                $removedPatches
+            );
+        } finally {
+            try {
+                $this->filesystem->remove($tmpPath);
+            } catch (IOException $e) {
+                // this can sometimes fail due to git file permissions
+                // if that happens, just leave it: we're in the temp directory anyways
+            }
+        }
+    }
+
+    private function writeFiles(array $files, string $directory): void
+    {
+        foreach ($files as $filename => $contents) {
+            $path = $directory.'/'.$filename;
+            if (null === $contents) {
+                if (file_exists($path)) {
+                    unlink($path);
+                }
+
+                continue;
+            }
+
+            if (!file_exists(\dirname($path))) {
+                $this->filesystem->mkdir(\dirname($path));
+            }
+            file_put_contents($path, $contents);
+        }
+    }
+
+    private function execute(string $command, string $cwd): string
+    {
+        $output = '';
+        $statusCode = $this->processExecutor->execute($command, $output, $cwd);
+
+        if (0 !== $statusCode) {
+            throw new \LogicException(sprintf('Command "%s" failed: "%s". Output: "%s".', $command, $this->processExecutor->getErrorOutput(), $output));
+        }
+
+        return $output;
+    }
+
+    /**
+     * Adds git blobs for each original file.
+     *
+     * For patching to work, each original file & contents needs to be
+     * available to git as a blob. This is because the patch contains
+     * the ref to the original blob, and git uses that to find the
+     * original file (which is needed for the 3-way merge).
+     */
+    private function addMissingBlobs(array $blobs): array
+    {
+        $addedBlobs = [];
+        foreach ($blobs as $hash => $contents) {
+            $blobPath = $this->rootDir.'/'.$this->getBlobPath($hash);
+            if (file_exists($blobPath)) {
+                continue;
+            }
+
+            $addedBlobs[] = $blobPath;
+            if (!file_exists(\dirname($blobPath))) {
+                $this->filesystem->mkdir(\dirname($blobPath));
+            }
+            file_put_contents($blobPath, $contents);
+        }
+
+        return $addedBlobs;
+    }
+
+    private function generateBlobs(array $originalFiles, string $originalFilesRoot): array
+    {
+        $addedBlobs = [];
+        foreach ($originalFiles as $filename => $contents) {
+            // if the file didn't originally exist, no blob needed
+            if (!file_exists($originalFilesRoot.'/'.$filename)) {
+                continue;
+            }
+
+            $hash = trim($this->execute('git hash-object '.ProcessExecutor::escape($filename), $originalFilesRoot));
+            $addedBlobs[$hash] = file_get_contents($originalFilesRoot.'/'.$this->getBlobPath($hash));
+        }
+
+        return $addedBlobs;
+    }
+
+    private function getBlobPath(string $hash): string
+    {
+        $hashStart = substr($hash, 0, 2);
+        $hashEnd = substr($hash, 2);
+
+        return '.git/objects/'.$hashStart.'/'.$hashEnd;
+    }
+}

vendor/symfony/flex/src/Update/RecipeUpdate.php

@@ -0,0 +1,114 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Update;
+
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+
+class RecipeUpdate
+{
+    private $originalRecipe;
+    private $newRecipe;
+    private $lock;
+    private $rootDir;
+
+    /** @var string[] */
+    private $originalRecipeFiles = [];
+    /** @var string[] */
+    private $newRecipeFiles = [];
+    private $copyFromPackagePaths = [];
+
+    public function __construct(Recipe $originalRecipe, Recipe $newRecipe, Lock $lock, string $rootDir)
+    {
+        $this->originalRecipe = $originalRecipe;
+        $this->newRecipe = $newRecipe;
+        $this->lock = $lock;
+        $this->rootDir = $rootDir;
+    }
+
+    public function getOriginalRecipe(): Recipe
+    {
+        return $this->originalRecipe;
+    }
+
+    public function getNewRecipe(): Recipe
+    {
+        return $this->newRecipe;
+    }
+
+    public function getLock(): Lock
+    {
+        return $this->lock;
+    }
+
+    public function getRootDir(): string
+    {
+        return $this->rootDir;
+    }
+
+    public function getPackageName(): string
+    {
+        return $this->originalRecipe->getName();
+    }
+
+    public function setOriginalFile(string $filename, ?string $contents): void
+    {
+        $this->originalRecipeFiles[$filename] = $contents;
+    }
+
+    public function setNewFile(string $filename, ?string $contents): void
+    {
+        $this->newRecipeFiles[$filename] = $contents;
+    }
+
+    public function addOriginalFiles(array $files)
+    {
+        foreach ($files as $file => $contents) {
+            if (null === $contents) {
+                continue;
+            }
+
+            $this->setOriginalFile($file, $contents);
+        }
+    }
+
+    public function addNewFiles(array $files)
+    {
+        foreach ($files as $file => $contents) {
+            if (null === $contents) {
+                continue;
+            }
+
+            $this->setNewFile($file, $contents);
+        }
+    }
+
+    public function getOriginalFiles(): array
+    {
+        return $this->originalRecipeFiles;
+    }
+
+    public function getNewFiles(): array
+    {
+        return $this->newRecipeFiles;
+    }
+
+    public function getCopyFromPackagePaths(): array
+    {
+        return $this->copyFromPackagePaths;
+    }
+
+    public function addCopyFromPackagePath(string $source, string $target)
+    {
+        $this->copyFromPackagePaths[$source] = $target;
+    }
+}