Bypass webpack compilation for precompiled @next/polyfills-nomodule #27596

timneutkens · 2021-07-29T10:24:41Z

Removes the extra webpack handling that was previously done, this ensures the file which is already minified and compiled does not get passed through minification again.

Largely based on #21418
Closes #21418

The polyfill loading already has tests so no other changes are necessary.

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

Removes the extra webpack handling that was previously done, this ensures the file which is already minified and compiled does not get passed through minification again. Largely based on vercel#21418 Closes vercel#21418 Co-Authored-By: Joe Haddad <timer150@gmail.com>

styfle · 2021-08-13T19:41:05Z

packages/next/build/webpack/plugins/build-manifest-plugin.ts

+      assetMap.polyfillFiles = compilationAssets
+        .filter((p) => {
+          // Ensure only .js files are passed through
+          if (!p.name.endsWith('.js')) {


Do we need to think about .cjs or .mjs here?

Not currently, if an output like that is added then yes.

ijjk · 2021-08-13T22:13:55Z

Stats from current PR

Default Build (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
buildDuration	13.7s	12.6s	-1.1s
buildDurationCached	3.2s	3.2s	-55ms
nodeModulesSize	49.1 MB	49.1 MB	⚠️ +8.54 kB

Page Load Tests Overall increase ✓

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.519	2.512	-0.01
/ avg req/sec	992.51	995.07	+2.56
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.361	1.36	0
/error-in-render avg req/sec	1837.38	1838.67	+1.29

Client Bundles (main, webpack, commons) Overall decrease ✓

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
745.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.2 kB	42.2 kB	✓
main-HASH.js gzip	23.1 kB	23.1 kB	✓
webpack-HASH.js gzip	1.5 kB	1.44 kB	-63 B
Overall change	67 kB	67 kB	-63 B

Legacy Client Bundles (polyfills) Overall decrease ✓

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
polyfills-HASH.js gzip	31.1 kB	N/A	N/A
polyfills-a4..dd70.js gzip	N/A	31 kB	N/A
Overall change	31.1 kB	31 kB	-77 B

Client Pages

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
_app-HASH.js gzip	980 B	980 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	2.64 kB	2.64 kB	✓
head-HASH.js gzip	350 B	350 B	✓
hooks-HASH.js gzip	904 B	904 B	✓
image-HASH.js gzip	4.13 kB	4.13 kB	✓
index-HASH.js gzip	261 B	261 B	✓
link-HASH.js gzip	1.66 kB	1.66 kB	✓
routerDirect..HASH.js gzip	319 B	319 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	12.9 kB	12.9 kB	✓

Client Build Manifests

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
_buildManifest.js gzip	491 B	491 B	✓
Overall change	491 B	491 B	✓

Rendered Page Sizes Overall increase ⚠️

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
index.html gzip	533 B	541 B	⚠️ +8 B
link.html gzip	546 B	553 B	⚠️ +7 B
withRouter.html gzip	525 B	534 B	⚠️ +9 B
Overall change	1.6 kB	1.63 kB	⚠️ +24 B

Diffs

Diff for polyfills-HASH.js

deleted

Diff for polyfills-a4..124eadd70.js

Diff too large to display

Diff for webpack-HASH.js

@@ -175,22 +175,6 @@
       /******/
     };
     /******/
-  })(); /* webpack/runtime/global */
-  /******/
-
-  /******/ /******/ !(function() {
-    /******/ __webpack_require__.g = (function() {
-      /******/ if (typeof globalThis === "object") return globalThis;
-      /******/ try {
-        /******/ return this || new Function("return this")();
-        /******/
-      } catch (e) {
-        /******/ if (typeof window === "object") return window;
-        /******/
-      }
-      /******/
-    })();
-    /******/
   })(); /* webpack/runtime/hasOwnProperty shorthand */
   /******/

Diff for index.html

@@ -8,10 +8,10 @@
     <script
       defer=""
       nomodule=""
-      src="/_next/static/chunks/polyfills-e87f09c84badadba76ef.js"
+      src="/_next/static/chunks/polyfills-a40ef1678bae11e696dba45124eadd70.js"
     ></script>
     <script
-      src="/_next/static/chunks/webpack-031adeaf444149491045.js"
+      src="/_next/static/chunks/webpack-47f60bc5ff0cf5dfe268.js"
       defer=""
     ></script>
     <script

Diff for link.html

@@ -8,10 +8,10 @@
     <script
       defer=""
       nomodule=""
-      src="/_next/static/chunks/polyfills-e87f09c84badadba76ef.js"
+      src="/_next/static/chunks/polyfills-a40ef1678bae11e696dba45124eadd70.js"
     ></script>
     <script
-      src="/_next/static/chunks/webpack-031adeaf444149491045.js"
+      src="/_next/static/chunks/webpack-47f60bc5ff0cf5dfe268.js"
       defer=""
     ></script>
     <script

Diff for withRouter.html

@@ -8,10 +8,10 @@
     <script
       defer=""
       nomodule=""
-      src="/_next/static/chunks/polyfills-e87f09c84badadba76ef.js"
+      src="/_next/static/chunks/polyfills-a40ef1678bae11e696dba45124eadd70.js"
     ></script>
     <script
-      src="/_next/static/chunks/webpack-031adeaf444149491045.js"
+      src="/_next/static/chunks/webpack-47f60bc5ff0cf5dfe268.js"
       defer=""
     ></script>
     <script

Webpack 4 Mode (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
buildDuration	11.4s	10.5s	-899ms
buildDurationCached	4.5s	4.2s	-252ms
nodeModulesSize	49.1 MB	49.1 MB	⚠️ +8.54 kB

Page Load Tests Overall increase ✓

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.598	2.495	-0.1
/ avg req/sec	962.25	1001.87	+39.62
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.384	1.408	⚠️ +0.02
/error-in-render avg req/sec	1806.58	1774.94	⚠️ -31.64

Client Bundles (main, webpack, commons) Overall increase ⚠️

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
17.HASH.js gzip	185 B	186 B	⚠️ +1 B
677f882d2ed8..HASH.js gzip	14 kB	14 kB	✓
framework.HASH.js gzip	41.9 kB	41.9 kB	✓
main-HASH.js gzip	10.6 kB	10.6 kB	✓
webpack-HASH.js gzip	1.19 kB	1.19 kB	⚠️ +1 B
Overall change	67.9 kB	67.9 kB	⚠️ +2 B

Legacy Client Bundles (polyfills) Overall decrease ✓

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
polyfills-HASH.js gzip	31.3 kB	N/A	N/A
polyfills-a4..dd70.js gzip	N/A	31 kB	N/A
Overall change	31.3 kB	31 kB	-236 B

Client Pages Overall decrease ✓

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
_app-HASH.js gzip	965 B	965 B	✓
_error-HASH.js gzip	3.71 kB	3.71 kB	✓
amp-HASH.js gzip	552 B	552 B	✓
css-HASH.js gzip	333 B	333 B	✓
dynamic-HASH.js gzip	2.83 kB	2.83 kB	-1 B
head-HASH.js gzip	2.97 kB	2.97 kB	✓
hooks-HASH.js gzip	911 B	911 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	2.95 kB	2.95 kB	✓
withRouter-HASH.js gzip	294 B	294 B	✓
e025d2764813..52f.css gzip	125 B	125 B	✓
Overall change	17.8 kB	17.8 kB	-1 B

Client Build Manifests Overall decrease ✓

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
_buildManifest.js gzip	498 B	497 B	-1 B
Overall change	498 B	497 B	-1 B

Rendered Page Sizes Overall increase ⚠️

	vercel/next.js canary	timneutkens/next.js add/remove-next-polyfill-compilation	Change
index.html gzip	578 B	585 B	⚠️ +7 B
link.html gzip	591 B	598 B	⚠️ +7 B
withRouter.html gzip	570 B	579 B	⚠️ +9 B
Overall change	1.74 kB	1.76 kB	⚠️ +23 B

Diffs

Diff for _buildManifest.js

@@ -10,7 +10,7 @@ self.__BUILD_MANIFEST = {
     "static\u002Fchunks\u002Fpages\u002Fcss-0fc40b547d044664b6a0.js"
   ],
   "/dynamic": [
-    "static\u002Fchunks\u002Fpages\u002Fdynamic-97a9156f97752a73abfb.js"
+    "static\u002Fchunks\u002Fpages\u002Fdynamic-03610522cdfd6f22239b.js"
   ],
   "/head": ["static\u002Fchunks\u002Fpages\u002Fhead-abecfbe6a75f8cfa32c0.js"],
   "/hooks": [

Diff for dynamic-HASH.js

@@ -574,7 +574,7 @@ _N_E = (window["webpackJsonp_N_E"] = window["webpackJsonp_N_E"] || []).push([
       var DynamicHello = next_dynamic__WEBPACK_IMPORTED_MODULE_1___default()(
         function() {
           return __webpack_require__
-            .e(/* import() */ 17)
+            .e(/* import() */ 16)
             .then(__webpack_require__.bind(null, "GaDq"));
         },
         {

Diff for 17.HASH.js

@@ -1,5 +1,5 @@
 (window["webpackJsonp_N_E"] = window["webpackJsonp_N_E"] || []).push([
-  [17],
+  [16],
   {
     /***/ GaDq: /***/ function(
       module,

Diff for polyfills-HASH.js

deleted

Diff for polyfills-a4..124eadd70.js

Diff too large to display

Diff for webpack-HASH.js

@@ -85,7 +85,7 @@
       "static/chunks/" +
       ({}[chunkId] || chunkId) +
       "." +
-      { "17": "3d084653b6499a5a6e00" }[chunkId] +
+      { "16": "6fd1a3665a4372e3b214" }[chunkId] +
       ".js"
     );
     /******/

Diff for index.html

@@ -8,10 +8,10 @@
     <script
       defer=""
       nomodule=""
-      src="/_next/static/chunks/polyfills-85918dace37a5ba0ac6b.js"
+      src="/_next/static/chunks/polyfills-a40ef1678bae11e696dba45124eadd70.js"
     ></script>
     <script
-      src="/_next/static/chunks/webpack-0cd6603d8fc22ae04472.js"
+      src="/_next/static/chunks/webpack-1d12e847dc26f509cc34.js"
       defer=""
     ></script>
     <script

Diff for link.html

@@ -8,10 +8,10 @@
     <script
       defer=""
       nomodule=""
-      src="/_next/static/chunks/polyfills-85918dace37a5ba0ac6b.js"
+      src="/_next/static/chunks/polyfills-a40ef1678bae11e696dba45124eadd70.js"
     ></script>
     <script
-      src="/_next/static/chunks/webpack-0cd6603d8fc22ae04472.js"
+      src="/_next/static/chunks/webpack-1d12e847dc26f509cc34.js"
       defer=""
     ></script>
     <script

Diff for withRouter.html

@@ -8,10 +8,10 @@
     <script
       defer=""
       nomodule=""
-      src="/_next/static/chunks/polyfills-85918dace37a5ba0ac6b.js"
+      src="/_next/static/chunks/polyfills-a40ef1678bae11e696dba45124eadd70.js"
     ></script>
     <script
-      src="/_next/static/chunks/webpack-0cd6603d8fc22ae04472.js"
+      src="/_next/static/chunks/webpack-1d12e847dc26f509cc34.js"
       defer=""
     ></script>
     <script

Commit: 13e9131

timneutkens requested review from huozhi, ijjk, padmaia, shuding and styfle as code owners July 29, 2021 10:24

ijjk added created-by: Next.js team PRs by the Next.js team type: next labels Jul 29, 2021

timneutkens mentioned this pull request Jul 29, 2021

refactor: polyfill-nomodule handling #21418

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styfle requested a review from sokra July 29, 2021 15:37

Add caching to copy-file-plugin

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styfle reviewed Aug 13, 2021

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styfle approved these changes Aug 13, 2021

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Merge branch 'canary' into add/remove-next-polyfill-compilation

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ijjk approved these changes Aug 13, 2021

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Merge branch 'canary' into add/remove-next-polyfill-compilation

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Merge branch 'canary' into add/remove-next-polyfill-compilation

13e9131

kodiakhq bot merged commit eddf205 into vercel:canary Aug 13, 2021

This was referenced Sep 1, 2021

chore(deps): bump next from 11.1.0 to 11.1.1 filecoin-project/slate#916

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chore(deps): bump next from 11.1.0 to 11.1.2 filecoin-project/slate#917

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Bypass webpack compilation for precompiled @next/polyfills-nomodule #27596

Bypass webpack compilation for precompiled @next/polyfills-nomodule #27596

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ijjk commented Aug 13, 2021

Diffs

Diffs

Bypass webpack compilation for precompiled @next/polyfills-nomodule #27596

Bypass webpack compilation for precompiled @next/polyfills-nomodule #27596

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timneutkens commented Jul 29, 2021

Bug

Feature

Documentation / Examples

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ijjk commented Aug 13, 2021

Stats from current PR

Diffs

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