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Revert the Timeline event taxonomy source module - #8321

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janmaarten-a11y-revert-8180-timeline-taxonomy
Aug 19, 2026
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Revert the Timeline event taxonomy source module#8321
janmaarten-a11y merged 1 commit into
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janmaarten-a11y-revert-8180-timeline-taxonomy

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This reverts #8180. The team wants the Timeline event taxonomy to live in github-ui rather than in Primer, so Primer stays taxonomy-agnostic and ships only the Timeline component and, later, an optional presentational Timeline.Filter control. Nothing on main imports the taxonomy module, so removing it is safe. The related Primer taxonomy PR #8216 closes unmerged, and its branch stays preserved so github-ui can lift the model from it. This PR stays a draft pending the closing comments on #8216, #6664, and #6654.

Changelog

New

None.

Changed

None.

Removed

Remove the Timeline event taxonomy source module under packages/react/src/Timeline/taxonomy, which covers actorType.ts, eventCategories.ts, eventTaxonomy.ts, eventTaxonomy.test.ts, surfaces.ts, and index.ts. Remove the matching camelcase override block for that module from eslint.config.mjs.

Rollout strategy

  • Patch release
  • Minor release
  • Major release; if selected, include a written rollout or migration plan
  • None; if selected, include a brief description as to why

The taxonomy module never appears in the public @primer/react entry point and nothing on main imports it, so this revert makes no consumer-facing change and needs no changeset.

Testing & Reviewing

Run git revert on the #8180 squash commit, which applies cleanly with no conflicts and touches exactly seven files: it deletes the six files under packages/react/src/Timeline/taxonomy and removes the eight-line camelcase override from eslint.config.mjs. A repo-wide search finds no remaining references to the taxonomy module, and the Timeline component and its surface stories stay untouched. Type checking with tsc, linting with eslint at zero warnings across eslint.config.mjs and the Timeline directory, prettier formatting, and the @primer/react build all pass.

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Latest commit: da0176b

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@janmaarten-a11yjanmaarten-a11y added the skip changeset This change does not need a changelog label Aug 19, 2026
@github-actionsgithub-actionsBot added the integration-tests: recommended This change needs to be tested for breaking changes. See https://arc.net/l/quote/tdmpakpm label Aug 19, 2026
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⚠️ Action required

👋 Hi, this pull request contains changes to the source code that github/github-ui depends on. If you are GitHub staff, test these changes with github/github-ui using the integration workflow. Check the integration testing docs for step-by-step instructions. Or, apply the integration-tests: skipped manually label to skip these checks.

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github-actionsBottemporarily deployed to storybook-preview-8321 August 19, 2026 00:58 Inactive
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janmaarten-a11y marked this pull request as ready for review August 19, 2026 03:18
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janmaarten-a11y requested a review from a team as a code ownerAugust 19, 2026 03:18
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janmaarten-a11y requested review from liuliu-dev and llastflowers and a lite review from Copilot and removed request for llastflowersAugust 19, 2026 03:18
@janmaarten-a11yjanmaarten-a11y self-assigned this Aug 19, 2026
@janmaarten-a11yjanmaarten-a11y added component: Timeline integration-tests: skipped manually Changes in this PR do not require an integration test and removed integration-tests: recommended This change needs to be tested for breaking changes. See https://arc.net/l/quote/tdmpakpm labels Aug 19, 2026
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janmaarten-a11y marked this pull request as draft August 19, 2026 03:33

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Pull request overview

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Reverts the previously introduced Timeline event taxonomy source module so Primer remains taxonomy-agnostic, keeping taxonomy ownership in github-ui.

Changes:

  • Deletes the Timeline taxonomy module files under packages/react/src/Timeline/taxonomy/ (types, catalogs, projections, and tests).
  • Removes the ESLint camelcase override that was scoped specifically to the deleted taxonomy file.
Show a summary per file
FileDescription
packages/react/src/Timeline/taxonomy/surfaces.tsRemoved the Timeline surface union and security-alert surface helpers.
packages/react/src/Timeline/taxonomy/index.tsRemoved taxonomy module public entry point re-exports.
packages/react/src/Timeline/taxonomy/eventTaxonomy.tsRemoved the combined taxonomy catalogs and projection utilities.
packages/react/src/Timeline/taxonomy/eventTaxonomy.test.tsRemoved tests validating the taxonomy catalogs and projections.
packages/react/src/Timeline/taxonomy/eventCategories.tsRemoved event category model and surface/category mapping helpers.
packages/react/src/Timeline/taxonomy/actorType.tsRemoved actor type classification and login-based resolution helper.
eslint.config.mjsRemoved the camelcase override targeting the deleted taxonomy file.

Review details

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  • Files reviewed: 7/7 changed files
  • Comments generated: 0
  • Review effort level: Lite

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Review details

  • Files reviewed: 7/7 changed files
  • Comments generated: 0 new
  • Review effort level: Lite

@janmaarten-a11y
janmaarten-a11y added this pull request to the merge queueAug 19, 2026
Merged via the queue into main with commit a46b193Aug 19, 2026
77 of 79 checks passed
@janmaarten-a11y
janmaarten-a11y deleted the janmaarten-a11y-revert-8180-timeline-taxonomy branch August 19, 2026 16:24
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