ci: Report Next.js/RSC and renderToPipeableStream bundle sizes

[ntucker]

Fixes # .

Motivation

The Bundle Size check only gzip-measured the SPA @data-client/react graph (rdcClient.js). Next.js App Router / RSC (@data-client/react/nextjs) and generic renderToPipeableStream (@data-client/react/ssr) adapter graphs were untracked, so streaming work on those export paths could land without a size comment.

Solution

Same preactjs/compressed-size-action@v2 job, same yarn ci:build:bundlesize / production minify, same gzip PR comment.

examples/test-bundlesize runs three isolated webpack compilations (SPA plus two adapters) and copies only the adapter rdc* chunks into dist/ so the existing glob picks them up:

• rdcClient.js — SPA (@data-client/react) — unchanged vs master (0 byte gzip delta)
• rdcNextjs.js — Next.js/RSC (@data-client/react/nextjs)
• rdcPipeableStream.js — renderToPipeableStream (@data-client/react/ssr)

Local dry-run (zlib.gzipSync, same compression as the action):

Chunk	Graph	min	gzip	vs SPA gzip
rdcClient.js	SPA	34608	10865	0
rdcNextjs.js	Next.js/RSC	39070	12355	+1490
rdcPipeableStream.js	renderToPipeableStream	29271	9649	−1216

Master already ships ./nextjs and ./ssr, so this measures what master publishes today. Future streaming on those export paths will show up as deltas on the same two files.

Open questions

N/A

  

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Latest commit: a466c65

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs-site	Ignored	Preview	Sep 18, 2026 3:06am UTC

[github-actions]

Size Change: +22 kB (+27.11%) 🚨

Total Size: 103 kB

📦 View Changed

Filename	Size	Change
examples/test-bundlesize/dist/rdcNextjs.js	12.3 kB	+12.3 kB (new file)	🆕
examples/test-bundlesize/dist/rdcPipeableStream.js	9.63 kB	+9.63 kB (new file)	🆕

ℹ️ View Unchanged

Filename	Size	Change
examples/test-bundlesize/dist/App.js	1.46 kB	+4 B (+0.27%)
examples/test-bundlesize/dist/polyfill.js	307 B	0 B
examples/test-bundlesize/dist/rdcClient.js	10.9 kB	0 B
examples/test-bundlesize/dist/rdcEndpoint.js	8.07 kB	0 B
examples/test-bundlesize/dist/react.js	59.6 kB	0 B
examples/test-bundlesize/dist/webpack-runtime.js	784 B	0 B

_{compressed-size-action}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.84%. Comparing base (44cb7e6) to head (a466c65).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4093   +/-   ##
=======================================
  Coverage   97.84%   97.84%           
=======================================
  Files         156      156           
  Lines        3057     3057           
  Branches      612      612           
=======================================
  Hits         2991     2991           
  Misses         18       18           
  Partials       48       48           

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[ntucker]

Wire the SPA entry through ./ui too.

ui.tsx extracts Doit for the adapter entries, but index.tsx still inlines the same component. That leaves two sources of truth for the fixture that keeps the three package graphs comparable — the next edit to one side will silently skew SPA vs nextjs/ssr.

Please import Doit from ./ui in index.tsx and drop the inlined copy. Leave the existing React.memo / second / renderedElement SPA entry shape alone (nothing else imports those exports; renderedElement is still used locally, and touching them only risks App.js noise in the size comment).

Rest looks good: isolated webpack compiles + cache-dir copy of only rdc* into dist/ is the right shape for per-adapter gzip without double-counting App/react; rdcClient staying flat and the +22 kB new-file comment are expected first-measure noise.

[cursor]

Staff CHANGE_THIS_PR cleared by sharing Doit from ./ui in the SPA fixture (index.tsx). Inlined duplicate removed; React.memo / second / renderedElement unchanged.