refactor: remove copyright comment from swizzled components (#7017)

* refactor: remove copyright comment from swizzled components

* Update packages/docusaurus/src/commands/swizzle/actions.ts

Co-authored-by: Joshua Chen <sidachen2003@gmail.com>

Co-authored-by: Joshua Chen <sidachen2003@gmail.com>

packages/docusaurus/src/commands/swizzle/__tests__/__fixtures__/theme/ComponentInFolder/index.css

@@ -1,3 +1,11 @@
-.testClass {
+
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+ .testClass {
   background: black;
 }

packages/docusaurus/src/commands/swizzle/__tests__/__fixtures__/theme/ComponentInFolder/index.tsx

@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 import React from 'react';
 
 export default function ComponentInFolder() {

packages/docusaurus/src/commands/swizzle/__tests__/__fixtures__/theme/FirstLevelComponent.css

@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 .testClass {
   background: black;
 }

packages/docusaurus/src/commands/swizzle/__tests__/__fixtures__/theme/FirstLevelComponent.tsx

@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 import React from 'react';
 
 export default function FirstLevelComponent() {

packages/docusaurus/src/commands/swizzle/actions.ts

@@ -81,7 +81,11 @@ export async function eject({
       const fileName = path.basename(sourceFile);
       const targetFile = path.join(toPath, fileName);
       try {
-        await fs.copy(sourceFile, targetFile, {overwrite: true});
+        const fileContents = await fs.readFile(sourceFile, 'utf-8');
+        await fs.outputFile(
+          targetFile,
+          fileContents.trimStart().replace(/^\/\*.+?\*\/\s*/ms, ''),
+        );
       } catch (err) {
         throw new Error(
           logger.interpolate`Could not copy file from ${sourceFile} to ${targetFile}`,