next/dynamic: Accept pagesDir

[kdy1]

Bug

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

Feature

• Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
• Related issues linked using fixes #number
• Integration tests added
• Documentation added
• Telemetry added. In case of a feature if it's used or not.
• Errors have helpful link attached, see contributing.md

Documentation / Examples

• Make sure the linting passes

This PR adds pagesDir to options and fixes deserialization issue.

[ijjk]

Stats from current PR

Default Build (Increase detected ⚠️)

General

	vercel/next.js canary	kdy1/next.js pages-dir	Change
buildDuration	12.2s	12.1s	-114ms
buildDurationCached	3.1s	3.1s	⚠️ +17ms
nodeModulesSize	47 MB	47 MB	✓

Page Load Tests Overall increase ✓

	vercel/next.js canary	kdy1/next.js pages-dir	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.627	2.59	-0.04
/ avg req/sec	951.79	965.4	+13.61
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.292	1.274	-0.02
/error-in-render avg req/sec	1935.29	1963.08	+27.79

Client Bundles (main, webpack, commons)

	vercel/next.js canary	kdy1/next.js pages-dir	Change
745.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.2 kB	42.2 kB	✓
main-HASH.js gzip	26.6 kB	26.6 kB	✓
webpack-HASH.js gzip	1.45 kB	1.45 kB	✓
Overall change	70.4 kB	70.4 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	kdy1/next.js pages-dir	Change
polyfills-a4..dd70.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	kdy1/next.js pages-dir	Change
_app-HASH.js gzip	979 B	979 B	✓
_error-HASH.js gzip	194 B	194 B	✓
amp-HASH.js gzip	312 B	312 B	✓
css-HASH.js gzip	329 B	329 B	✓
dynamic-HASH.js gzip	2.67 kB	2.67 kB	✓
head-HASH.js gzip	351 B	351 B	✓
hooks-HASH.js gzip	918 B	918 B	✓
image-HASH.js gzip	4.14 kB	4.14 kB	✓
index-HASH.js gzip	261 B	261 B	✓
link-HASH.js gzip	1.66 kB	1.66 kB	✓
routerDirect..HASH.js gzip	318 B	318 B	✓
script-HASH.js gzip	387 B	387 B	✓
withRouter-HASH.js gzip	320 B	320 B	✓
bb14e60e810b..30f.css gzip	125 B	125 B	✓
Overall change	13 kB	13 kB	✓

Client Build Manifests

	vercel/next.js canary	kdy1/next.js pages-dir	Change
_buildManifest.js gzip	492 B	492 B	✓
Overall change	492 B	492 B	✓

Rendered Page Sizes

	vercel/next.js canary	kdy1/next.js pages-dir	Change
index.html gzip	539 B	539 B	✓
link.html gzip	552 B	552 B	✓
withRouter.html gzip	533 B	533 B	✓
Overall change	1.62 kB	1.62 kB	✓

---

Webpack 4 Mode (Decrease detected ✓)

General

	vercel/next.js canary	kdy1/next.js pages-dir	Change
buildDuration	9.9s	10.1s	⚠️ +118ms
buildDurationCached	4.4s	4.1s	-270ms
nodeModulesSize	47 MB	47 MB	✓

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	kdy1/next.js pages-dir	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.652	2.648	0
/ avg req/sec	942.71	944.26	+1.55
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.282	1.285	0
/error-in-render avg req/sec	1949.45	1946.22	⚠️ -3.23

Client Bundles (main, webpack, commons)

	vercel/next.js canary	kdy1/next.js pages-dir	Change
16.HASH.js gzip	186 B	186 B	✓
677f882d2ed8..HASH.js gzip	14.1 kB	14.1 kB	✓
framework.HASH.js gzip	41.9 kB	41.9 kB	✓
main-HASH.js gzip	13.8 kB	13.8 kB	✓
webpack-HASH.js gzip	1.19 kB	1.19 kB	✓
Overall change	71.2 kB	71.2 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	kdy1/next.js pages-dir	Change
polyfills-a4..dd70.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	kdy1/next.js pages-dir	Change
_app-HASH.js gzip	964 B	964 B	✓
_error-HASH.js gzip	3.8 kB	3.8 kB	✓
amp-HASH.js gzip	552 B	552 B	✓
css-HASH.js gzip	333 B	333 B	✓
dynamic-HASH.js gzip	2.87 kB	2.87 kB	✓
head-HASH.js gzip	3.06 kB	3.06 kB	✓
hooks-HASH.js gzip	924 B	924 B	✓
index-HASH.js gzip	231 B	231 B	✓
link-HASH.js gzip	1.64 kB	1.64 kB	✓
routerDirect..HASH.js gzip	298 B	298 B	✓
script-HASH.js gzip	3.03 kB	3.03 kB	✓
withRouter-HASH.js gzip	295 B	295 B	✓
30809af5c834..565.css gzip	125 B	125 B	✓
Overall change	18.1 kB	18.1 kB	✓

Client Build Manifests

	vercel/next.js canary	kdy1/next.js pages-dir	Change
_buildManifest.js gzip	500 B	500 B	✓
Overall change	500 B	500 B	✓

Rendered Page Sizes

	vercel/next.js canary	kdy1/next.js pages-dir	Change
index.html gzip	585 B	585 B	✓
link.html gzip	597 B	597 B	✓
withRouter.html gzip	578 B	578 B	✓
Overall change	1.76 kB	1.76 kB	✓

Commit: ea229b0

[ijjk]

Failing test suites

Commit: ea229b0

test/integration/config/test/index.test.js

• Configuration > should log webpack version correctly

Expand output

● Configuration › should log webpack version correctly

expect(received).toContain(expected) // indexOf

Expected substring: "Using webpack 4. Reason: webpack5 flag is set to false in next.config.js"
Received string:    "Debugger listening on ws://127.0.0.1:9229/44060d32-32c9-4d99-af87-3210e56da639
For help, see: https://nodejs.org/en/docs/inspector
ready - started server on 0.0.0.0:35747, url: http://localhost:35747
info  - Using webpack 4 in Next.js is deprecated. Please upgrade to using webpack 5: https://nextjs.org/docs/messages/webpack5
Warning: Built-in CSS support is being disabled due to custom CSS configuration being detected.
See here for more info: https://nextjs.org/docs/messages/built-in-css-disabled·
event - compiled successfully
event - build page: /next-config
wait  - compiling...
event - build page: /build-id
event - build page: /webpack-css
event - build page: /next/dist/pages/_error
event - compiled successfully
"

  44 |   })
  45 |
> 46 |   afterAll(() => {
     |                   ^
  47 |     killApp(context.server)
  48 |   })
  49 |

  at Object.<anonymous> (integration/config/test/index.test.js:46:32)