turbopack: Fix Server Actions in Edge runtime

[jridgewell]

What?

Changes Server Actions to use a lazy require() statement instead of a lazy dynamic import(), to fix SA in the Edge runtime.

Why?

The Edge runtime has a restriction that it's not allowed to lazy load more files. The problem is that dynamic import() does exactly that, it defers importing those files until the call time. require() doesn't have this issue, because the chunks it would load are included instead of deferred.

How?

Just needed to modify the actions loader entry point… after hours of trying to get the action loader to evaluate in the node runtime and then import the actions in the edge runtime.

Closes WEB-1874

[ijjk]

Stats from current PR

Default Build

General

	vercel/next.js canary	vercel/next.js jrl-actions-typescript	Change
buildDuration	10.3s	10.3s	N/A
buildDurationCached	5.9s	5.9s	N/A
nodeModulesSize	175 MB	175 MB	✓
nextStartRea..uration (ms)	415ms	421ms	N/A

Client Bundles (main, webpack)

	vercel/next.js canary	vercel/next.js jrl-actions-typescript	Change
199-HASH.js gzip	32.4 kB	32.4 kB	N/A
3f784ff6-HASH.js gzip	53.2 kB	53.2 kB	N/A
99.HASH.js gzip	182 B	182 B	✓
framework-HASH.js gzip	45.5 kB	45.5 kB	✓
main-app-HASH.js gzip	254 B	252 B	N/A
main-HASH.js gzip	35.3 kB	35.4 kB	N/A
webpack-HASH.js gzip	1.75 kB	1.75 kB	N/A
Overall change	45.7 kB	45.7 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	vercel/next.js jrl-actions-typescript	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	vercel/next.js jrl-actions-typescript	Change
_app-HASH.js gzip	206 B	205 B	N/A
_error-HASH.js gzip	182 B	180 B	N/A
amp-HASH.js gzip	506 B	505 B	N/A
css-HASH.js gzip	322 B	323 B	N/A
dynamic-HASH.js gzip	2.59 kB	2.59 kB	✓
edge-ssr-HASH.js gzip	260 B	259 B	N/A
head-HASH.js gzip	350 B	350 B	✓
hooks-HASH.js gzip	369 B	369 B	✓
image-HASH.js gzip	4.38 kB	4.38 kB	N/A
index-HASH.js gzip	256 B	256 B	✓
link-HASH.js gzip	2.67 kB	2.67 kB	N/A
routerDirect..HASH.js gzip	316 B	318 B	N/A
script-HASH.js gzip	385 B	384 B	N/A
withRouter-HASH.js gzip	319 B	319 B	✓
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
Overall change	3.99 kB	3.99 kB	✓

Client Build Manifests

	vercel/next.js canary	vercel/next.js jrl-actions-typescript	Change
_buildManifest.js gzip	484 B	482 B	N/A
Overall change	0 B	0 B	✓

Rendered Page Sizes

	vercel/next.js canary	vercel/next.js jrl-actions-typescript	Change
index.html gzip	529 B	530 B	N/A
link.html gzip	541 B	542 B	N/A
withRouter.html gzip	523 B	523 B	✓
Overall change	523 B	523 B	✓

Edge SSR bundle Size

	vercel/next.js canary	vercel/next.js jrl-actions-typescript	Change
edge-ssr.js gzip	96 kB	96 kB	N/A
page.js gzip	140 kB	140 kB	N/A
Overall change	0 B	0 B	✓

Middleware size

	vercel/next.js canary	vercel/next.js jrl-actions-typescript	Change
middleware-b..fest.js gzip	625 B	622 B	N/A
middleware-r..fest.js gzip	150 B	151 B	N/A
middleware.js gzip	25.6 kB	25.6 kB	N/A
edge-runtime..pack.js gzip	1.92 kB	1.92 kB	✓
Overall change	1.92 kB	1.92 kB	✓

Commit: 10ed6e0