Drop edge prerender manifest (#67787)

### What

Follow up for #67779 , we don't have to generate the edge preview
manifest since it's mainly for rendering the preview props and now
preview props can be accessed through process env by a util
`getEdgePreviewProps()`

packages/next/src/build/index.ts

@@ -342,32 +342,6 @@ async function writePrerenderManifest(
   manifest: DeepReadonly<PrerenderManifest>
 ): Promise<void> {
   await writeManifest(path.join(distDir, PRERENDER_MANIFEST), manifest)
-  await writeEdgePartialPrerenderManifest(distDir, manifest)
-}
-
-async function writeEdgePartialPrerenderManifest(
-  distDir: string,
-  manifest: DeepReadonly<Partial<PrerenderManifest>>
-): Promise<void> {
-  // We need to write a partial prerender manifest to make preview mode settings available in edge middleware.
-  // Use env vars in JS bundle and inject the actual vars to edge manifest.
-  const edgePartialPrerenderManifest: DeepReadonly<Partial<PrerenderManifest>> =
-    {
-      routes: {},
-      dynamicRoutes: {},
-      notFoundRoutes: [],
-      version: manifest.version,
-      // Preview props are inlined in the code with dynamic env vars,
-      // During edge runtime build:
-      // - local: env vars will be injected through edge-runtime as runtime env vars
-      // - deployment: env vars will be replaced by edge build pipeline as inline values
-    }
-  await writeFileUtf8(
-    path.join(distDir, PRERENDER_MANIFEST.replace(/\.json$/, '.js')),
-    `self.__PRERENDER_MANIFEST=${JSON.stringify(
-      JSON.stringify(edgePartialPrerenderManifest)
-    )}`
-  )
 }
 
 async function writeClientSsgManifest(
@@ -1215,8 +1189,6 @@ export default async function build(
         '{"type": "commonjs"}'
       )
 
-      await writeEdgePartialPrerenderManifest(distDir, {})
-
       const outputFileTracingRoot =
         config.experimental.outputFileTracingRoot || dir
 
@@ -1259,7 +1231,6 @@ export default async function build(
               path.relative(distDir, pagesManifestPath),
               BUILD_MANIFEST,
               PRERENDER_MANIFEST,
-              PRERENDER_MANIFEST.replace(/\.json$/, '.js'),
               path.join(SERVER_DIRECTORY, MIDDLEWARE_MANIFEST),
               path.join(SERVER_DIRECTORY, MIDDLEWARE_BUILD_MANIFEST + '.js'),
               path.join(

packages/next/src/build/templates/edge-ssr-app.ts

@@ -37,7 +37,6 @@ declare const nextConfig: NextConfigComplete
 const maybeJSONParse = (str?: string) => (str ? JSON.parse(str) : undefined)
 
 const buildManifest: BuildManifest = self.__BUILD_MANIFEST as any
-const prerenderManifest = maybeJSONParse(self.__PRERENDER_MANIFEST)
 const reactLoadableManifest = maybeJSONParse(self.__REACT_LOADABLE_MANIFEST)
 const rscManifest = self.__RSC_MANIFEST?.['VAR_PAGE']
 const rscServerManifest = maybeJSONParse(self.__RSC_SERVER_MANIFEST)
@@ -70,7 +69,6 @@ const render = getRender({
   error500Mod,
   Document,
   buildManifest,
-  prerenderManifest,
   renderToHTML,
   reactLoadableManifest,
   clientReferenceManifest: isServerComponent ? rscManifest : null,

packages/next/src/build/templates/edge-ssr.ts

@@ -82,7 +82,6 @@ const error500Mod = userland500Page
 const maybeJSONParse = (str?: string) => (str ? JSON.parse(str) : undefined)
 
 const buildManifest: BuildManifest = self.__BUILD_MANIFEST as any
-const prerenderManifest = maybeJSONParse(self.__PRERENDER_MANIFEST)
 const reactLoadableManifest = maybeJSONParse(self.__REACT_LOADABLE_MANIFEST)
 const subresourceIntegrityManifest = sriEnabled
   ? maybeJSONParse(self.__SUBRESOURCE_INTEGRITY_MANIFEST)
@@ -99,7 +98,6 @@ const render = getRender({
   error500Mod,
   Document,
   buildManifest,
-  prerenderManifest,
   renderToHTML,
   reactLoadableManifest,
   subresourceIntegrityManifest,

packages/next/src/build/webpack/loaders/next-edge-ssr-loader/render.ts

@@ -13,14 +13,12 @@ import {
   WebNextResponse,
 } from '../../../../server/base-http/web'
 import { SERVER_RUNTIME } from '../../../../lib/constants'
-import type { ManifestRewriteRoute, PrerenderManifest } from '../../..'
+import type { ManifestRewriteRoute } from '../../..'
 import { normalizeAppPath } from '../../../../shared/lib/router/utils/app-paths'
 import type { SizeLimit } from '../../../../types'
 import { internal_getCurrentFunctionWaitUntil } from '../../../../server/web/internal-edge-wait-until'
 import type { PAGE_TYPES } from '../../../../lib/page-types'
 import type { NextRequestHint } from '../../../../server/web/adapter'
-import type { DeepReadonly } from '../../../../shared/lib/deep-readonly'
-import { getEdgePreviewProps } from '../../../../server/web/get-edge-preview-props'
 
 export function getRender({
   dev,
@@ -32,7 +30,6 @@ export function getRender({
   pagesType,
   Document,
   buildManifest,
-  prerenderManifest,
   reactLoadableManifest,
   interceptionRouteRewrites,
   renderToHTML,
@@ -55,7 +52,6 @@ export function getRender({
   renderToHTML?: any
   Document: DocumentType
   buildManifest: BuildManifest
-  prerenderManifest: DeepReadonly<PrerenderManifest>
   reactLoadableManifest: ReactLoadableManifest
   subresourceIntegrityManifest?: Record<string, string>
   interceptionRouteRewrites?: ManifestRewriteRoute[]
@@ -89,12 +85,6 @@ export function getRender({
       page,
       pathname: isAppPath ? normalizeAppPath(page) : page,
       pagesType,
-      prerenderManifest: prerenderManifest
-        ? {
-            ...prerenderManifest,
-            preview: getEdgePreviewProps(),
-          }
-        : undefined,
       interceptionRouteRewrites,
       extendRenderOpts: {
         buildId,

packages/next/src/build/webpack/plugins/middleware-plugin.ts

@@ -20,7 +20,6 @@ import {
   SUBRESOURCE_INTEGRITY_MANIFEST,
   NEXT_FONT_MANIFEST,
   SERVER_REFERENCE_MANIFEST,
-  PRERENDER_MANIFEST,
   INTERCEPTION_ROUTE_REWRITE_MANIFEST,
 } from '../../../shared/lib/constants'
 import type { MiddlewareConfig } from '../../analysis/get-page-static-info'
@@ -138,10 +137,6 @@ function getEntryFiles(
     files.push(`server/edge-${INSTRUMENTATION_HOOK_FILENAME}.js`)
   }
 
-  if (process.env.NODE_ENV === 'production') {
-    files.push(PRERENDER_MANIFEST.replace('json', 'js'))
-  }
-
   files.push(
     ...entryFiles
       .filter((file) => !file.endsWith('.hot-update.js'))

packages/next/src/client/route-loader.ts

@@ -17,7 +17,6 @@ declare global {
     __BUILD_MANIFEST_CB?: Function
     __MIDDLEWARE_MATCHERS?: MiddlewareMatcher[]
     __MIDDLEWARE_MANIFEST_CB?: Function
-    __PRERENDER_MANIFEST?: string
     __REACT_LOADABLE_MANIFEST?: any
     __RSC_MANIFEST?: any
     __RSC_SERVER_MANIFEST?: any

packages/next/src/server/web-server.ts

@@ -3,7 +3,6 @@ import type RenderResult from './render-result'
 import type { NextParsedUrlQuery, NextUrlWithParsedQuery } from './request-meta'
 import type { Params } from '../shared/lib/router/utils/route-matcher'
 import type { LoadComponentsReturnType } from './load-components'
-import type { PrerenderManifest } from '../build'
 import type {
   LoadedRenderOpts,
   MiddlewareRoutingItem,
@@ -33,7 +32,6 @@ import type { PAGE_TYPES } from '../lib/page-types'
 import type { Rewrite } from '../lib/load-custom-routes'
 import { buildCustomRoute } from '../lib/build-custom-route'
 import { UNDERSCORE_NOT_FOUND_ROUTE } from '../api/constants'
-import type { DeepReadonly } from '../shared/lib/deep-readonly'
 import { getEdgeInstrumentationModule } from './web/globals'
 import type { ServerOnInstrumentationRequestError } from './app-render/types'
 import { getEdgePreviewProps } from './web/get-edge-preview-props'
@@ -52,7 +50,6 @@ interface WebServerOptions extends Options {
       | typeof import('./app-render/app-render').renderToHTMLOrFlight
       | undefined
     incrementalCacheHandler?: any
-    prerenderManifest: DeepReadonly<PrerenderManifest> | undefined
     interceptionRouteRewrites?: Rewrite[]
   }
 }
@@ -140,17 +137,13 @@ export default class NextWebServer extends BaseServer<
   }
 
   protected getPrerenderManifest() {
-    const { prerenderManifest } = this.serverOptions.webServerConfig
-    if (this.renderOpts?.dev || !prerenderManifest) {
-      return {
-        version: -1 as any, // letting us know this doesn't conform to spec
-        routes: {},
-        dynamicRoutes: {},
-        notFoundRoutes: [],
-        preview: getEdgePreviewProps(),
-      }
+    return {
+      version: -1 as any, // letting us know this doesn't conform to spec
+      routes: {},
+      dynamicRoutes: {},
+      notFoundRoutes: [],
+      preview: getEdgePreviewProps(),
     }
-    return prerenderManifest
   }
 
   protected getNextFontManifest() {

test/e2e/app-dir/app/index.test.ts

@@ -40,12 +40,6 @@ describe('app dir - basic', () => {
       )
     })
 
-    it('should not have entire prerender-manifest for edge', async () => {
-      expect(await next.readFile('.next/prerender-manifest.js')).not.toContain(
-        'initialRevalidate'
-      )
-    })
-
     if (!process.env.NEXT_EXPERIMENTAL_COMPILE) {
       it('should have correct size in build output', async () => {
         expect(next.cliOutput).toMatch(

test/e2e/middleware-trailing-slash/test/index.test.ts

@@ -115,7 +115,6 @@ describe('Middleware Runtime trailing slash', () => {
         delete middlewareWithoutEnvs.env
         expect(middlewareWithoutEnvs).toEqual({
           files: expect.arrayContaining([
-            'prerender-manifest.js',
             'server/edge-runtime-webpack.js',
             'server/middleware.js',
           ]),