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Forget open tabs of files a Pull deletes - #6
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Pybricks remembers open editor tabs as file uuids in sessionStorage (editor.activeFileHistory.<window.name>.<editorId>) and reopens them after a reload. A tab whose file the Pull deleted failed that reopen with an "unexpected error ... file with uuid '...' not found" toast. pull() now computes the uuids apply-files will delete (pullmerge.js:deletedUuids) and prunes them from every open-tab history key (pruneOpenTabs) inside the reload timer, immediately before location.reload(), so the page's in-memory history can't rewrite them. The drive.mjs merge step opens gone.py and keep.py as tabs before the Pull and records toasts from page load; with the prune disabled it fails on the toast. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Included review availability: Your plan provides up to 10 included reviews per hour; 7 remain after this review. 📝 WalkthroughWalkthroughThe change separates pure tab-history pruning plans from sessionStorage I/O. Pull applies planned rewrites before reload, and tests verify deleted tabs are removed while retained tabs remain. ChangesDeleted tab history cleanup
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Bug fix Merge Risk: ⚪ Minimal · up to Deleted tab histories are pruned without altering unrelated entries, and Pull still reloads when sessionStorage cleanup fails. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@src/pullmerge.js`:
- Line 115: Move pruneOpenTabs and all sessionStorage access from pullmerge.js
into content.js, preserving its current tab-pruning behavior and call flow. Keep
pruneTabHistory in pullmerge.js as a pure history transformation with no storage
I/O, and update callers/imports accordingly.
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CLAUDE.mdREADME.mdsrc/content.jssrc/pullmerge.jstest/e2e/README.mdtest/e2e/drive.mjstest/load-pullmerge.mjstest/pullmerge.test.mjs
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CodeRabbit: pullmerge.js is a pure-helper file. pruneOpenTabs(storage) becomes planTabPrunes(entries, uuids) -> [[key, newValue]]; content.js reads the entries and writes the planned values. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Why
The last README roadmap item. When a Pull deleted a file that was open in an editor tab, the reload afterwards showed Pybricks' "An unexpected error occurred … file with uuid '…' not found" toast, with a Report Bug button. It auto-dismisses after 5 s. If the deleted file was the only open tab, nothing overwrote the stale entry, so the toast came back on every reload.
Cause
Pybricks remembers open tabs as a JSON array of file uuids in sessionStorage, under
editor.activeFileHistory.<window.name>.<editorId>(ActiveFileHistoryManager, pybricks-codesrc/editor/lib.ts, which matches the deployed bundle). It reopens each one on load.apply-filesdeletes the file's metadata row, but that history still named its uuid, so the reopen failed infileStorageLoadTextFileandeditorDidFailToOpenFileturned into the toast.Fix
src/pullmerge.js, pure and unit-tested:deletedUuids(metadata, keptPaths)finds the uuidsapply-filesis about to delete.pruneTabHistory/planTabPrunes(entries, uuids)plan removing them from every open-tab history key, returning[[key, newValue]]. Unrelated keys and non-array values are left alone, and only keys that change are rewritten.content.jsdoes the actual sessionStorage reads and writes, sopullmerge.jsstays I/O-free.src/content.js(pull()) computes the uuids before the apply. It prunes inside the reload timer, immediately beforelocation.reload(), because the page's in-memory history rewrites the key whenever a tab opens or closes, which could undo an earlier prune. The prune is wrapped in try/catch; if storage is unavailable, the worst case is Pybricks' own toast.No React/Redux internals are involved, only the sessionStorage key Pybricks reads on load.
Tests
test/pullmerge.test.mjs. 217/217 pass.drive.mjsmerge step,keep.pyandgone.pyare opened as editor tabs before the Pull, and toasts are recorded from page load viaPage.addScriptToEvaluateOnNewDocument, because they auto-dismiss. After the reload it asserts:gone.pyis gone from the tab history,keep.pyis still in it.keep.py, but only after it has already toasted. The test says so, and checks the toast first.drive-menu.mjsanddrive-splice.mjsstill pass.Docs: CLAUDE.md ("Pull merges" section), e2e README, and the README roadmap, which is now empty.
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Summary by CodeRabbit
Bug Fixes
Documentation
Tests