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## Move "Ready in X" log before config loading and eliminate duplicate `loadConfig` calls ### What? Reorder the dev server startup flow so the "Ready in X" log appears before loading the user's `next.config.js`, and eliminate duplicate `loadConfig` calls in both dev and build paths. ### Why? Previously, the "Ready in X" time included the time spent loading and evaluating the user's `next.config.js` file. This made the framework appear slower than it actually is, especially for projects with complex config files or slow config evaluation. Additionally, config was being loaded twice: - **Dev server**: Once in `getStartServerInfo()` just for logging, then again in `getRequestHandlers()` - **Build**: Once for the main build, then again in `getStartServerInfo()` just for logging ### How? **Before:** ``` 1. getStartServerInfo() → loadConfig #1 (slow - blocks on next.config.js) 2. logStartInfo() → logs version, URLs, experimental features 3. "Ready in X" ← time includes config loading 4. getRequestHandlers() → loadConfig #2 ``` **After:** ``` 1. logStartInfo() → logs version, URLs, envInfo (no config needed) 2. "Ready in X" ← reflects actual framework startup time 3. getRequestHandlers() → loadConfig (once) 4. logExperimentalInfo() → logs experimental features ``` **Changes:** - Split `logStartInfo` into two functions: - `logStartInfo()` - basic info (version, URLs, env) - no config needed - `logExperimentalInfo()` - experimental features and cacheComponents - Removed `getStartServerInfo()` which was loading config unnecessarily - Added `experimentalFeatures` and `cacheComponents` to `ServerInitResult` so they can be passed back after config loads - In build, added `reportExperimentalFeatures` callback to the existing `loadConfig` call instead of loading config twice --------- Co-authored-by: Vercel <vercel[bot]@users.noreply.github.com>
24 lines
591 B
TypeScript
24 lines
591 B
TypeScript
import { createNext } from 'e2e-utils'
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describe('next start without next build', () => {
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it('should show error when there is no production build', async () => {
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const next = await createNext({
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files: __dirname,
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skipStart: true,
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startCommand: `pnpm next start`,
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serverReadyPattern: /Local:/,
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})
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await next.start()
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await new Promise<void>((resolve, reject) => {
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next.on('stderr', (msg) => {
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if (msg.includes('Could not find a production build in the')) {
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resolve()
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}
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})
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})
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await next.destroy()
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})
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})
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