Build: Add bundle-size bot#263
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Reports shipped bundle size changes on PRs as one Semantic Bundle Bot comment, the size sister to the performance bot. Builds the PR head and merge base, weighs every shipped bundle in brotli/gzip/raw, and counts lines of code shipped with comments stripped.
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Headline is the component bundle's own delta (no cross-bundle sum, which double-counts overlapping bundles). Five states (no-change/improvement/mixed/warning/regression) keyed on the worst single bundle, with JND suppression and an absolute floor on percent-driven regressions. Columns lead with brotli size and percent change.
Packages consumed piecemeal (utils) have a whole-package bundle that's an upper bound, not a per-consumer cost — a new export tree-shakes to zero for real consumers, and its real cost already shows in the component bundle. Such packages are still measured and shown (marked) but don't drive severity. Opt-out via TREE_SHAKEN, so future packages count as real shipped bundles by default.
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This adds a bot that reports on bundle size on PRs
Details
packages/**orsrc/**,@semantic-ui/componentbut reporting per packageRisk
0/10 — CI tooling only, no published framework code touched.