Fix unexpected undefined when creating shared bundles

[AGawrys]

↪️ Pull Request

Aims to fix #9058 , by replacing usage of bundles structure in favor of bundleRoots structure. We should replace all instances of bundles but this will fix the issue for now.

💻 Examples

Test case in issue and in PR

🚨 Test instructions

✔️ PR Todo

• Added/updated unit tests for this change
• Filled out test instructions (In case there aren't any unit tests)
• Included links to related issues/PRs

[parcel-benchmark]

Benchmark Results

Kitchen Sink ✅

Timings

Description	Time	Difference
Cold	1.51s	-7.00ms
Cached	257.00ms	-5.00ms

Cold Bundles

Bundle	Size	Difference	Time	Difference
dist/legacy/index.b8ae99ba.css	94.00b	+0.00b	243.00ms	-27.00ms 🚀
dist/modern/index.31cedca9.css	94.00b	+0.00b	244.00ms	-25.00ms 🚀

Cached Bundles

Bundle	Size	Difference	Time	Difference
dist/legacy/index.b8ae99ba.css	94.00b	+0.00b	247.00ms	-22.00ms 🚀
dist/modern/index.31cedca9.css	94.00b	+0.00b	247.00ms	-22.00ms 🚀

React HackerNews ✅

Timings

Description	Time	Difference
Cold	4.30s	+85.00ms
Cached	412.00ms	+18.00ms

Cold Bundles

Bundle	Size	Difference	Time	Difference
dist/PermalinkedComment.3145598b.js	3.94kb	+0.00b	358.00ms	+27.00ms ⚠️
dist/UserProfile.b37bbaff.js	1.38kb	+0.00b	358.00ms	+27.00ms ⚠️
dist/NotFound.c08212ea.js	265.00b	+0.00b	358.00ms	+27.00ms ⚠️
dist/logo.8dd07848.png	244.00b	+0.00b	296.00ms	+20.00ms ⚠️

Cached Bundles

Bundle	Size	Difference	Time	Difference
dist/PermalinkedComment.3145598b.js	3.94kb	+0.00b	375.00ms	-46.00ms 🚀
dist/UserProfile.b37bbaff.js	1.38kb	+0.00b	375.00ms	-46.00ms 🚀
dist/NotFound.c08212ea.js	265.00b	+0.00b	375.00ms	-46.00ms 🚀
dist/logo.8dd07848.png	244.00b	+0.00b	320.00ms	+26.00ms ⚠️

AtlasKit Editor ✅

Timings

Description	Time	Difference
Cold	38.97s	-438.00ms
Cached	2.24s	+78.00ms

Cold Bundles

Bundle	Size	Difference	Time	Difference
dist/editorView.3f952334.js	619.77kb	+0.00b	14.61s	-919.00ms 🚀
dist/media-viewer.bc1a2415.js	537.32kb	+0.00b	12.64s	+2.87s ⚠️
dist/ConfigPanelFieldsLoader.8648eeee.js	306.81kb	+0.00b	8.73s	-1.05s 🚀
dist/card.3521c96b.js	140.18kb	+0.00b	12.31s	+2.55s ⚠️
dist/ConfigPanelFieldsLoader.1a016f33.js	82.96kb	+0.00b	12.52s	-628.00ms 🚀
dist/ElementBrowser.c496dd44.js	62.20kb	+0.00b	8.72s	-1.06s 🚀
dist/archive.fe044de4.js	60.16kb	+0.00b	12.64s	+2.87s ⚠️
dist/esm.ce3e12df.js	59.72kb	+0.00b	12.31s	+2.55s ⚠️
dist/ConfigPanelFieldsLoader.8efb299e.js	15.82kb	+0.00b	8.72s	-1.05s 🚀
dist/ui.8e1e1200.js	14.49kb	+0.00b	8.72s	-1.06s 🚀
dist/ConfigPanelFieldsLoader.f78f3b60.js	13.65kb	+0.00b	8.72s	-1.05s 🚀
dist/pdfRenderer.6335b9a2.js	12.08kb	+0.00b	12.52s	+2.75s ⚠️
dist/mobile-upload.c687ddb2.js	7.86kb	+0.00b	8.72s	-1.05s 🚀
dist/mobile-upload.e9eb996a.js	7.86kb	+0.00b	12.31s	+2.54s ⚠️
dist/ru.aaea8ba6.js	2.81kb	+0.00b	8.72s	-1.01s 🚀
dist/uk.5d2e97bd.js	2.76kb	+0.00b	8.72s	-1.05s 🚀
dist/codeViewerRenderer.7d374cd5.js	2.61kb	+0.00b	12.64s	+2.87s ⚠️
dist/th.df60823c.js	2.60kb	+0.00b	8.72s	-1.05s 🚀
dist/pl.f089a702.js	2.25kb	+0.00b	7.86s	+1.13s ⚠️
dist/ja.a9cd0bd6.js	2.09kb	+0.00b	7.86s	+1.13s ⚠️
dist/vi.3e6d5bcb.js	2.09kb	+0.00b	8.72s	-1.05s 🚀
dist/pt_BR.1db6fd92.js	2.06kb	+0.00b	7.86s	+1.13s ⚠️
dist/tr.4de346b9.js	2.03kb	+0.00b	8.72s	-1.05s 🚀
dist/ko.954590a1.js	1.97kb	+0.00b	7.86s	+1.13s ⚠️
dist/sv.b893ead3.js	1.97kb	+0.00b	8.72s	-1.05s 🚀
dist/nb.7f52770f.js	1.96kb	+0.00b	7.86s	+1.13s ⚠️
dist/nl.fd54481e.js	1.94kb	+0.00b	7.86s	+1.13s ⚠️
dist/zh_TW.3d130b76.js	1.85kb	+0.00b	8.72s	-1.05s 🚀
dist/zh.fb21f066.js	1.83kb	+0.00b	8.72s	-1.05s 🚀
dist/workerHasher.322762e4.js	1.56kb	+0.00b	8.72s	-1.06s 🚀
dist/workerHasher.8fdadeba.js	1.56kb	+0.00b	12.31s	+2.54s ⚠️
dist/sk.1a0c584e.js	652.00b	+0.00b	8.72s	-1.05s 🚀
dist/pt_PT.16308ef8.js	631.00b	+0.00b	7.86s	+1.13s ⚠️
dist/simpleHasher.0488d56a.js	585.00b	+0.00b	8.72s	-1.06s 🚀
dist/simpleHasher.180c1d91.js	585.00b	+0.00b	12.31s	+2.54s ⚠️
dist/ro.ee42c980.js	478.00b	+0.00b	8.72s	+1.98s ⚠️
dist/index.html	248.00b	+0.00b	12.69s	+6.80s ⚠️

Cached Bundles

Bundle	Size	Difference	Time	Difference
dist/component-lazy.aeb22f50.js	59.50kb	+0.00b	5.83s	-884.00ms 🚀
dist/mobile-upload.86840439.js	7.86kb	+0.00b	5.48s	-274.00ms 🚀
dist/codeViewerRenderer.7d374cd5.js	2.61kb	+0.00b	8.73s	-4.24s 🚀
dist/workerHasher.e01f8bcf.js	1.56kb	+0.00b	5.48s	-274.00ms 🚀
dist/simpleHasher.329400f6.js	585.00b	+0.00b	5.48s	-274.00ms 🚀
dist/ro.ee42c980.js	478.00b	+0.00b	6.57s	-2.54s 🚀

Three.js ✅

Timings

Description	Time	Difference
Cold	3.25s	+114.00ms
Cached	311.00ms	+4.00ms

Cold Bundles

No bundle changes detected.

Cached Bundles

No bundle changes detected.

Click here to view a detailed benchmark overview.

[shepmaster]

I pulled in the nightly version of Parcel and it seems to build my project, so thank you for the fix!

Should we expect a release containing this fix anytime soon? Is there an established release cadence?