distinguish between serverless and non-serverless builds

Author: lobsterkatie

packages/nextjs/src/config/types.ts

@@ -9,6 +9,8 @@ export type ExportedNextConfig = NextConfigObject | NextConfigFunction;
 export type NextConfigObject = {
   // custom webpack options
   webpack?: WebpackConfigFunction;
+  // whether to build serverless functions for all pages, not just API routes
+  target?: 'server' | 'experimental-serverless-trace';
   sentry?: {
     disableServerWebpackPlugin?: boolean;
     disableClientWebpackPlugin?: boolean;

packages/nextjs/src/config/webpack.ts

@@ -242,15 +242,17 @@ function getWebpackPluginOptions(
   buildContext: BuildContext,
   userPluginOptions: Partial<SentryWebpackPluginOptions>,
 ): SentryWebpackPluginOptions {
-  const { isServer, dir: projectDir, buildId, dev: isDev } = buildContext;
+  const { isServer, dir: projectDir, buildId, dev: isDev, config: nextConfig } = buildContext;
 
+  const isServerless = nextConfig.target === 'experimental-serverless-trace';
   const hasSentryProperties = fs.existsSync(path.resolve(projectDir, 'sentry.properties'));
 
-  const serverInclude = [
-    { paths: ['.next/server/chunks/'], urlPrefix: '~/_next/server/chunks' },
-    { paths: ['.next/server/pages/'], urlPrefix: '~/_next/server/pages' },
-    { paths: ['.next/serverless/'], urlPrefix: '~/_next/serverless' },
-  ];
+  const serverInclude = isServerless
+    ? [{ paths: ['.next/serverless/'], urlPrefix: '~/_next/serverless' }]
+    : [
+        { paths: ['.next/server/chunks/'], urlPrefix: '~/_next/server/chunks' },
+        { paths: ['.next/server/pages/'], urlPrefix: '~/_next/server/pages' },
+      ];
   const clientInclude = [{ paths: ['.next/static/chunks/pages'], urlPrefix: '~/_next/static/chunks/pages' }];
 
   const defaultPluginOptions = dropUndefinedKeys({