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ESLint Plugin: Prevent bad imports of next/document and next/head #24832

Merged
merged 6 commits into from
May 10, 2021
Merged

ESLint Plugin: Prevent bad imports of next/document and next/head #24832

merged 6 commits into from
May 10, 2021

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housseindjirdeh
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Adds lint rules to the Next.js ESLint plugin to:

  • Disallow importing next/head inside pages/_document.js
  • Disallow importing next/document outside of pages/_document.js

Both rules will be surfaced as errors within the recommended config of the plugin.

Fixes #13712 #13958

@housseindjirdeh housseindjirdeh changed the title ESLint Plugin: Adds eslint rules to prevent bad imports of next/document and next/head ESLint Plugin: Prevent bad imports of next/document and next/head May 5, 2021
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timneutkens previously approved these changes May 10, 2021
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ijjk commented May 10, 2021

Stats from current PR

Default Server Mode (Decrease detected ✓)
General
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
buildDuration 15.3s 15.3s ⚠️ +63ms
buildDurationCached 4.9s 4.7s -173ms
nodeModulesSize 46.5 MB 46.5 MB
Page Load Tests Overall decrease ⚠️
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
/ failed reqs 0 0
/ total time (seconds) 2.663 2.682 ⚠️ +0.02
/ avg req/sec 938.66 932.29 ⚠️ -6.37
/error-in-render failed reqs 0 0
/error-in-render total time (seconds) 1.519 1.575 ⚠️ +0.06
/error-in-render avg req/sec 1646.2 1586.92 ⚠️ -59.28
Client Bundles (main, webpack, commons)
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
framework-HASH.js gzip 39.3 kB 39.3 kB
main-HASH.js gzip 19.3 kB 19.3 kB
webpack-HASH.js gzip 994 B 994 B
Overall change 59.6 kB 59.6 kB
Legacy Client Bundles (polyfills)
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
polyfills-HASH.js gzip 31.1 kB 31.1 kB
Overall change 31.1 kB 31.1 kB
Client Pages
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
_app-HASH.js gzip 1.02 kB 1.02 kB
_error-HASH.js gzip 3.05 kB 3.05 kB
amp-HASH.js gzip 526 B 526 B
css-HASH.js gzip 334 B 334 B
hooks-HASH.js gzip 890 B 890 B
index-HASH.js gzip 262 B 262 B
link-HASH.js gzip 1.65 kB 1.65 kB
routerDirect..HASH.js gzip 331 B 331 B
withRouter-HASH.js gzip 329 B 329 B
99a142a5cfae..804.css gzip 125 B 125 B
Overall change 8.52 kB 8.52 kB
Client Build Manifests
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
_buildManifest.js gzip 394 B 394 B
Overall change 394 B 394 B
Rendered Page Sizes
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
index.html gzip 561 B 561 B
link.html gzip 569 B 569 B
withRouter.html gzip 557 B 557 B
Overall change 1.69 kB 1.69 kB

Serverless Mode (Decrease detected ✓)
General
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
buildDuration 18.7s 19.1s ⚠️ +367ms
buildDurationCached 7.1s 7s -177ms
nodeModulesSize 46.5 MB 46.5 MB
Client Bundles (main, webpack, commons)
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
framework-HASH.js gzip 39.3 kB 39.3 kB
main-HASH.js gzip 19.3 kB 19.3 kB
webpack-HASH.js gzip 994 B 994 B
Overall change 59.6 kB 59.6 kB
Legacy Client Bundles (polyfills)
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
polyfills-HASH.js gzip 31.1 kB 31.1 kB
Overall change 31.1 kB 31.1 kB
Client Pages
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
_app-HASH.js gzip 1.02 kB 1.02 kB
_error-HASH.js gzip 3.05 kB 3.05 kB
amp-HASH.js gzip 526 B 526 B
css-HASH.js gzip 334 B 334 B
hooks-HASH.js gzip 890 B 890 B
index-HASH.js gzip 262 B 262 B
link-HASH.js gzip 1.65 kB 1.65 kB
routerDirect..HASH.js gzip 331 B 331 B
withRouter-HASH.js gzip 329 B 329 B
99a142a5cfae..804.css gzip 125 B 125 B
Overall change 8.52 kB 8.52 kB
Client Build Manifests
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
_buildManifest.js gzip 394 B 394 B
Overall change 394 B 394 B
Serverless bundles Overall decrease ✓
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
_error.js 1.34 MB 1.34 MB
404.html 2.42 kB 2.42 kB
500.html 2.41 kB 2.41 kB
amp.amp.html 10.8 kB 10.8 kB
amp.html 1.61 kB 1.61 kB
css.html 1.79 kB 1.79 kB
hooks.html 1.67 kB 1.67 kB
index.js 1.34 MB 1.34 MB
link.js 1.4 MB 1.4 MB
routerDirect.js 1.39 MB 1.39 MB -2 B
withRouter.js 1.39 MB 1.39 MB
Overall change 6.9 MB 6.9 MB -2 B

Webpack 4 Mode (Increase detected ⚠️)
General
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
buildDuration 13.2s 13.2s ⚠️ +16ms
buildDurationCached 5.4s 5.4s -36ms
nodeModulesSize 46.5 MB 46.5 MB
Page Load Tests Overall increase ✓
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
/ failed reqs 0 0
/ total time (seconds) 2.7 2.723 ⚠️ +0.02
/ avg req/sec 925.77 918.02 ⚠️ -7.75
/error-in-render failed reqs 0 0
/error-in-render total time (seconds) 1.553 1.513 -0.04
/error-in-render avg req/sec 1610.05 1652.35 +42.3
Client Bundles (main, webpack, commons)
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
677f882d2ed8..HASH.js gzip 13.3 kB 13.3 kB
framework.HASH.js gzip 39 kB 39 kB
main-HASH.js gzip 7.19 kB 7.19 kB
webpack-HASH.js gzip 751 B 751 B
Overall change 60.2 kB 60.2 kB
Legacy Client Bundles (polyfills)
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
polyfills-HASH.js gzip 31.3 kB 31.3 kB
Overall change 31.3 kB 31.3 kB
Client Pages
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
_app-HASH.js gzip 1.28 kB 1.28 kB
_error-HASH.js gzip 3.72 kB 3.72 kB
amp-HASH.js gzip 536 B 536 B
css-HASH.js gzip 339 B 339 B
hooks-HASH.js gzip 887 B 887 B
index-HASH.js gzip 227 B 227 B
link-HASH.js gzip 1.64 kB 1.64 kB
routerDirect..HASH.js gzip 303 B 303 B
withRouter-HASH.js gzip 302 B 302 B
21c68fa65a48..217.css gzip 125 B 125 B
Overall change 9.37 kB 9.37 kB
Client Build Manifests
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
_buildManifest.js gzip 420 B 420 B
Overall change 420 B 420 B
Rendered Page Sizes
vercel/next.js canary housseindjirdeh/next.js document-import-rules-eslint Change
index.html gzip 614 B 614 B
link.html gzip 619 B 619 B
withRouter.html gzip 607 B 607 B
Overall change 1.84 kB 1.84 kB
Commit: f770429

@kodiakhq kodiakhq bot merged commit 6d0150f into vercel:canary May 10, 2021
flybayer pushed a commit to blitz-js/next.js that referenced this pull request Jun 1, 2021
…rcel#24832)

Adds lint rules to the Next.js ESLint plugin to:

- Disallow importing `next/head` inside `pages/_document.js`
- Disallow importing `next/document` outside of `pages/_document.js`

Both rules will be surfaced as **errors** within the recommended config of the plugin.

Fixes vercel#13712 vercel#13958
@vercel vercel locked as resolved and limited conversation to collaborators Jan 28, 2022
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Add eslint rule for importing next/document outside of pages/_document.js
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