feat: add ability to skip package.json synchronization

Author: wuchen90

src/Flex.php

@@ -502,6 +502,14 @@ public function finish(string $rootDir, ?string $originalComposerJsonHash = null
 
     private function synchronizePackageJson(string $rootDir)
     {
+        $synchronizePackageJson = $this->composer->getPackage()->getExtra()['symfony/flex']['synchronize_package_json'] ?? true;
+
+        if (!$synchronizePackageJson) {
+            $this->io->writeError('<info>Skip synchronizing package.json with PHP packages</>');
+
+            return;
+        }
+
         $rootDir = realpath($rootDir);
         $vendorDir = trim((new Filesystem())->makePathRelative($this->config->get('vendor-dir'), $rootDir), '/');
 

tests/FlexTest.php

@@ -310,6 +310,47 @@ class_exists(LockArrayRepository::class) ? LockArrayRepository::class : Reposito
         $this->assertSame('2.3', $recipes['doctrine/doctrine-bundle']->getVersion());
     }
 
+    public function testInstallWithPackageJsonToSynchronizeSkipped()
+    {
+        $io = new BufferIO('', OutputInterface::VERBOSITY_VERBOSE);
+        $rootPackage = $this->mockRootPackage([
+            'symfony/flex' => ['synchronize_package_json' => false],
+        ]);
+
+        $flex = $this->mockFlex($io, $rootPackage);
+        $flex->install($this->mockFlexEvent());
+
+        $this->assertStringContainsString(
+            'Skip synchronizing package.json with PHP packages',
+            str_replace("\r\n", "\n", $io->getOutput()),
+        );
+    }
+
+    /**
+     * @dataProvider getDataForTestInstallWithoutPackageJsonToSynchronizeSkipped
+     */
+    public function testInstallWithoutPackageJsonToSynchronizeSkipped(array $extra)
+    {
+        $io = new BufferIO('', OutputInterface::VERBOSITY_VERBOSE);
+        $rootPackage = $this->mockRootPackage($extra);
+
+        $flex = $this->mockFlex($io, $rootPackage);
+        $flex->install($this->mockFlexEvent());
+
+        $this->assertStringNotContainsString(
+            'Skip synchronizing package.json with PHP packages',
+            str_replace("\r\n", "\n", $io->getOutput()),
+        );
+    }
+
+    public function getDataForTestInstallWithoutPackageJsonToSynchronizeSkipped(): array
+    {
+        return [
+            'default_behavior' => [[]],
+            'with_config_explicitly_set' => [['symfony/flex' => ['synchronize_package_json' => true]]],
+        ];
+    }
+
     public static function getTestPackages(): array
     {
         return [