WIP debug

Author: mischnic

bench/basic-app/app/page.js

@@ -1,7 +1,7 @@
 import React from 'react'
 
 export default function Page() {
-  return <h1>My Page</h1>
+  return <h1>My Page123</h1>
 }
 
 export const dynamic = 'force-dynamic'

packages/next/src/client/app-index.tsx

@@ -310,6 +310,7 @@ export async function hydrate(
   const initialRSCPayload = await initialServerResponse
 
   let deploymentId = getDeploymentId()
+  console.log('setAppBuildId', { buildId: initialRSCPayload.b, deploymentId })
   // setAppBuildId should be called only once, during JS initialization
   // and before any components have hydrated.
   if (initialRSCPayload.b) {

packages/next/src/client/components/router-reducer/fetch-server-response.ts

@@ -242,6 +242,12 @@ export async function fetchServerResponse(
 
     const flightResponse = await flightResponsePromise
 
+    console.log(
+      'softnav',
+      res.headers.get(NEXT_BUILD_ID_HEADER),
+      flightResponse.b,
+      getAppBuildId()
+    )
     if (
       (res.headers.get(NEXT_BUILD_ID_HEADER) ?? flightResponse.b) !==
       getAppBuildId()

packages/next/src/client/components/segment-cache/cache.ts

@@ -1550,6 +1550,14 @@ export async function fetchRouteOnCacheMiss(
         headers
       )
 
+      console.log('Cache 1', {
+        header: response.headers.get(NEXT_BUILD_ID_HEADER),
+        rscId: serverData.buildId,
+        buildId: getAppBuildId(),
+        map:
+          (response.headers.get(NEXT_BUILD_ID_HEADER) ?? serverData.buildId) !==
+          getAppBuildId(),
+      })
       if (
         (response.headers.get(NEXT_BUILD_ID_HEADER) ?? serverData.buildId) !==
         getAppBuildId()
@@ -1615,6 +1623,12 @@ export async function fetchRouteOnCacheMiss(
           headers
         )
 
+      console.log(
+        'Cache 2',
+        response.headers.get(NEXT_BUILD_ID_HEADER),
+        serverData.b,
+        getAppBuildId()
+      )
       if (
         (response.headers.get(NEXT_BUILD_ID_HEADER) ?? serverData.b) !==
         getAppBuildId()
@@ -1759,6 +1773,12 @@ export async function fetchSegmentOnCacheMiss(
       prefetchStream,
       headers
     )
+    console.log(
+      'Cache 3',
+      response.headers.get(NEXT_BUILD_ID_HEADER),
+      serverData.buildId,
+      getAppBuildId()
+    )
     if (
       (response.headers.get(NEXT_BUILD_ID_HEADER) ?? serverData.buildId) !==
       getAppBuildId()
@@ -2051,6 +2071,12 @@ function writeDynamicRenderResponseIntoCache(
   route: FulfilledRouteCacheEntry,
   spawnedEntries: Map<SegmentRequestKey, PendingSegmentCacheEntry> | null
 ): Array<FulfilledSegmentCacheEntry> | null {
+  console.log(
+    'Cache 4',
+    response.headers.get(NEXT_BUILD_ID_HEADER),
+    serverData.b,
+    getAppBuildId()
+  )
   if (
     (response.headers.get(NEXT_BUILD_ID_HEADER) ?? serverData.b) !==
     getAppBuildId()

packages/next/src/server/app-render/app-render.tsx

@@ -270,6 +270,10 @@ function maybeAppendBuildIdToRSCPayload<T extends RSCPayload>(
   ctx: AppRenderContext,
   payload: T
 ): T {
+  console.log('maybeAppendBuildIdToRSCPayload', {
+    dplId: ctx.renderOpts.deploymentId,
+    buildId: ctx.sharedContext.buildId,
+  })
   if (!ctx.renderOpts.deploymentId) {
     // TODO also for output: export, Next.js doesn't control the headers
     // for build id, we need to initialize the id on initial page load, so a header isn't enough

test/e2e/app-dir/segment-cache/deployment-skew/next.config.js

@@ -14,6 +14,11 @@ const nextConfig = {
     (async () => {
       return BUILD_ID
     }),
+  experimental: {
+    turbopackMinify: false,
+    turbopackModuleIds: 'named',
+    turbopackScopeHoisting: false,
+  },
 }
 
 module.exports = nextConfig