Bound constraints by copying extra.symfony.require

Author: nicolas-grekas

src/Flex.php

@@ -238,8 +238,23 @@ public function configureProject(Event $event)
     {
         $json = new JsonFile(Factory::getComposerFile());
         $manipulator = new JsonManipulator(file_get_contents($json->getPath()));
+
         // new projects are most of the time proprietary
         $manipulator->addMainKey('license', 'proprietary');
+
+        // replace unbounded contraints for symfony/* packages by extra.symfony.require
+        $config = json_decode($contents);
+        if ($symfonyVersion = $config['extra']['symfony']['require'] ?? null) {
+            $versions = $this->downloader->get('/versions.json');
+            foreach (['require', 'require-dev'] as $type) {
+                foreach ($config[$type] ?? [] as $package => $version) {
+                    if ('*' === $version && isset($versions['splits'][$package])) {
+                        $manipulator->addLink($type, $package, $symfonyVersion);
+                    }
+                }
+            }
+        }
+
         // 'name' and 'description' are only required for public packages
         // don't use $manipulator->removeProperty() for BC with Composer 1.0
         $contents = preg_replace('{^\s*+"(?:name|description)":.*,$\n}m', '', $manipulator->getContents());

src/PackageResolver.php

@@ -98,11 +98,11 @@ private function parseVersion(string $package, string $version, bool $isRequire)
             try {
                 $config = @json_decode(file_get_contents(Factory::getComposerFile()), true);
             } finally {
-                if (!$isRequire || !isset($config['require']['symfony/framework-bundle'])) {
+                if (!$isRequire || !($config['extra']['symfony']['require'] || isset($config['require']['symfony/framework-bundle']))) {
                     return '';
                 }
             }
-            $version = $config['require']['symfony/framework-bundle'];
+            $version = $config['extra']['symfony']['require'] ?? $config['require']['symfony/framework-bundle'];
         } elseif ('next' === $version) {
             $version = '^'.self::$versions[$version].'@dev';
         } elseif (\in_array($version, self::$SYMFONY_VERSIONS, true)) {