VersionHistory snapshots the previous content on every explicit save — an
unsaved buffer is still lost on crash. AutosaveBuffer fills that gap.
- src/main/AutosaveBuffer.js — pure module mirroring VersionHistory's
injectable-IO pattern; one blob per doc path under
<userData>/autosave/by-path/<sha1>/recovery.md + meta.json. No history
(VersionHistory owns that) — just the latest dirty buffer.
- src/main.js — IPC channels autosave:write/read/clear/list; real paths
go through validatePath, synthetic 'untitled-tab-<id>' keys skip it.
- src/preload.js — added the four channels to ALLOWED_SEND_CHANNELS.
- src/renderer/autosave-client.js — debounced (2s) flush per tab +
periodic safety net (10s max age) + dirty-write retry on failure.
- src/renderer.js — register on tab create, unregister on close,
notifyChange piggybacks on performAutoSave's existing dirty-check,
clearForDocPath after a successful save, showAutosaveRecoveryBanner
on startup listing pending recoveries with Restore/Dismiss.
Tests (39 new):
- tests/main/AutosaveBuffer.test.js (19): round-trip, overwrite, isolation,
unicode/emoji, empty content, null coercion, ENOENT vs corrupt meta,
list ordering, corrupt-sibling skip, input validation, sha1 storage.
- tests/autosave-client.test.js (11): debounce, flushNow bypass,
no-path skip, clearForDocPath, list proxy, IPC error fallback,
unregister tear-down, failure-retry, periodic flush, idempotency.
Full suite: 692 tests pass, 63 suites, lint+format clean.
Amit Haridas
The renderer wires KaTeX via initMathSupport() and calls
window.renderMathInElement(...) inside _renderPreview() — there were no
tests pinning any of that contract. This commit adds tests/math-rendering.test.js:
- inline ($, escaped \() and display ($$, escaped \[) delimiters all
render valid TeX
- mixed prose + math preserves siblings (headings, lists, etc.)
- invalid LaTeX degrades gracefully under default throwOnError:false, so
the renderer's outer try/catch contract stays load-bearing
- dollar-heavy prose doesn't throw (the renderer's auto-render call must
be robust to anything in the doc)
- bundle wiring: katex.render() and renderMathInElement are exported,
katex.min.css ships in assets/, and index.html references it without a
CDN (the old jsdelivr link was removed in a prior hardening pass)
Amit Haridas
amitwh