feat: using @next/rspack-core (#84221)

Use `@next/rspack-core` to replace `@rspack/core` in order to utilize the extended `NextExternalsPlugin` plugin.

The purpose is to enhance Rspack's performance in Next.js.

Author: SyMind

packages/next-rspack/package.json

@@ -7,6 +7,6 @@
   },
   "types": "index.d.ts",
   "dependencies": {
-    "@rspack/core": "1.5.0"
+    "@next/rspack-core": "1.0.0"
   }
 }

packages/next-rspack/rspack-core.js

@@ -1 +1 @@
-module.exports = require('@rspack/core')
+module.exports = require('@next/rspack-core')

packages/next/src/build/webpack-config.ts

@@ -97,6 +97,7 @@ import getWebpackBundler from '../shared/lib/get-webpack-bundler'
 import type { NextBuildContext } from './build-context'
 import type { RootParamsLoaderOpts } from './webpack/loaders/next-root-params-loader'
 import type { InvalidImportLoaderOpts } from './webpack/loaders/next-invalid-import-error-loader'
+import { defaultOverrides } from '../server/require-hook'
 
 type ExcludesFalse = <T>(x: T | false) => x is T
 type ClientEntries = {
@@ -966,7 +967,8 @@ export default async function getBaseWebpackConfig(
     ...(isNodeServer ? { externalsPresets: { node: true } } : {}),
     // @ts-ignore
     externals:
-      isClient || isEdgeServer
+      !isRspack &&
+      (isClient || isEdgeServer
         ? // make sure importing "next" is handled gracefully for client
           // bundles in case a user imported types and it wasn't removed
           // TODO: should we warn/error for this instead?
@@ -1038,7 +1040,7 @@ export default async function getBaseWebpackConfig(
                     })
                 }
               ),
-          ],
+          ]),
 
     optimization: {
       emitOnErrors: !dev,
@@ -2173,6 +2175,15 @@ export default async function getBaseWebpackConfig(
           compilerType,
           ...config.experimental.slowModuleDetection!,
         }),
+      isRspack &&
+        new (getRspackCore().NextExternalsPlugin)({
+          compilerType,
+          config,
+          optOutBundlingPackageRegex,
+          finalTranspilePackages,
+          dir,
+          defaultOverrides,
+        }),
     ].filter(Boolean as any as ExcludesFalse),
   }