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Ensure config's experimental field exists #34500

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merged 1 commit into from
Feb 17, 2022
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@bennettdams bennettdams commented Feb 17, 2022

Fixes #34499

Starting with v12.1.0, you can't use React 18 when you don't use the experimental field in the next.config.js

image

That's because this recent change sets reactRoot on the user's config without checking if the key already exists:

const hasReactRoot = shouldUseReactRoot()
if (hasReactRoot) {
userConfig.experimental.reactRoot = true
}

This change initializes experimental on the userConfig if necessary.

Bug

  • Related issues linked using fixes #number
  • Integration tests added
  • Errors have helpful link attached, see contributing.md

A recent change sets `experimental.reactRoot` on the user's config without checking if the `experimental` key already exists.
@bennettdams bennettdams changed the title Ensure config's experimental field exists Ensure config's experimental field exists (fixes #34499) Feb 17, 2022
@styfle styfle requested a review from huozhi February 17, 2022 21:18
@bennettdams bennettdams changed the title Ensure config's experimental field exists (fixes #34499) Ensure config's experimental field exists Feb 17, 2022
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ijjk commented Feb 17, 2022

Stats from current PR

Default Build (Increase detected ⚠️)
General Overall increase ⚠️
vercel/next.js canary bennettdams/next.js patch-2 Change
buildDuration 15.3s 15.3s -49ms
buildDurationCached 6.1s 6.1s -29ms
nodeModulesSize 359 MB 359 MB ⚠️ +251 B
Page Load Tests Overall increase ✓
vercel/next.js canary bennettdams/next.js patch-2 Change
/ failed reqs 0 0
/ total time (seconds) 3.005 3.023 ⚠️ +0.02
/ avg req/sec 832.02 827.12 ⚠️ -4.9
/error-in-render failed reqs 0 0
/error-in-render total time (seconds) 1.182 1.171 -0.01
/error-in-render avg req/sec 2114.82 2134.88 +20.06
Client Bundles (main, webpack, commons)
vercel/next.js canary bennettdams/next.js patch-2 Change
450.HASH.js gzip 179 B 179 B
framework-HASH.js gzip 42 kB 42 kB
main-HASH.js gzip 27.9 kB 27.9 kB
webpack-HASH.js gzip 1.44 kB 1.44 kB
Overall change 71.5 kB 71.5 kB
Legacy Client Bundles (polyfills)
vercel/next.js canary bennettdams/next.js patch-2 Change
polyfills-HASH.js gzip 31 kB 31 kB
Overall change 31 kB 31 kB
Client Pages
vercel/next.js canary bennettdams/next.js patch-2 Change
_app-HASH.js gzip 1.36 kB 1.36 kB
_error-HASH.js gzip 194 B 194 B
amp-HASH.js gzip 312 B 312 B
css-HASH.js gzip 326 B 326 B
dynamic-HASH.js gzip 2.57 kB 2.57 kB
head-HASH.js gzip 350 B 350 B
hooks-HASH.js gzip 919 B 919 B
image-HASH.js gzip 5.05 kB 5.05 kB
index-HASH.js gzip 263 B 263 B
link-HASH.js gzip 2.26 kB 2.26 kB
routerDirect..HASH.js gzip 321 B 321 B
script-HASH.js gzip 383 B 383 B
withRouter-HASH.js gzip 318 B 318 B
85e02e95b279..7e3.css gzip 107 B 107 B
Overall change 14.7 kB 14.7 kB
Client Build Manifests
vercel/next.js canary bennettdams/next.js patch-2 Change
_buildManifest.js gzip 460 B 460 B
Overall change 460 B 460 B
Rendered Page Sizes
vercel/next.js canary bennettdams/next.js patch-2 Change
index.html gzip 532 B 532 B
link.html gzip 545 B 545 B
withRouter.html gzip 526 B 526 B
Overall change 1.6 kB 1.6 kB

Default Build with SWC (Decrease detected ✓)
General Overall increase ⚠️
vercel/next.js canary bennettdams/next.js patch-2 Change
buildDuration 18.7s 18.7s ⚠️ +38ms
buildDurationCached 6s 6.1s ⚠️ +57ms
nodeModulesSize 359 MB 359 MB ⚠️ +251 B
Page Load Tests Overall decrease ⚠️
vercel/next.js canary bennettdams/next.js patch-2 Change
/ failed reqs 0 0
/ total time (seconds) 3.003 2.99 -0.01
/ avg req/sec 832.45 836.18 +3.73
/error-in-render failed reqs 0 0
/error-in-render total time (seconds) 1.167 1.183 ⚠️ +0.02
/error-in-render avg req/sec 2142.05 2113.5 ⚠️ -28.55
Client Bundles (main, webpack, commons)
vercel/next.js canary bennettdams/next.js patch-2 Change
450.HASH.js gzip 179 B 179 B
framework-HASH.js gzip 42.1 kB 42.1 kB
main-HASH.js gzip 27.9 kB 27.9 kB
webpack-HASH.js gzip 1.44 kB 1.44 kB
Overall change 71.7 kB 71.7 kB
Legacy Client Bundles (polyfills)
vercel/next.js canary bennettdams/next.js patch-2 Change
polyfills-HASH.js gzip 31 kB 31 kB
Overall change 31 kB 31 kB
Client Pages
vercel/next.js canary bennettdams/next.js patch-2 Change
_app-HASH.js gzip 1.35 kB 1.35 kB
_error-HASH.js gzip 180 B 180 B
amp-HASH.js gzip 305 B 305 B
css-HASH.js gzip 321 B 321 B
dynamic-HASH.js gzip 2.56 kB 2.56 kB
head-HASH.js gzip 342 B 342 B
hooks-HASH.js gzip 911 B 911 B
image-HASH.js gzip 5.08 kB 5.08 kB
index-HASH.js gzip 256 B 256 B
link-HASH.js gzip 2.28 kB 2.28 kB
routerDirect..HASH.js gzip 314 B 314 B
script-HASH.js gzip 375 B 375 B
withRouter-HASH.js gzip 309 B 309 B
85e02e95b279..7e3.css gzip 107 B 107 B
Overall change 14.7 kB 14.7 kB
Client Build Manifests
vercel/next.js canary bennettdams/next.js patch-2 Change
_buildManifest.js gzip 459 B 459 B
Overall change 459 B 459 B
Rendered Page Sizes
vercel/next.js canary bennettdams/next.js patch-2 Change
index.html gzip 533 B 533 B
link.html gzip 547 B 547 B
withRouter.html gzip 527 B 527 B
Overall change 1.61 kB 1.61 kB
Commit: 3dbf718

@kodiakhq kodiakhq bot merged commit 0b95da5 into vercel:canary Feb 17, 2022
@bennettdams bennettdams deleted the patch-2 branch February 17, 2022 21:54
@huozhi huozhi mentioned this pull request Feb 21, 2022
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@github-actions github-actions bot locked as resolved and limited conversation to collaborators Mar 20, 2022
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