missingRendererAssets only checked the module refs index.html itself names
(<script type=module> + modulepreload), so a torn install whose boot-critical
files were intact but whose lazy chunks were gone passed the generation check
and died minutes later on the first React.lazy() route with 'Failed to fetch
dynamically imported module' (#93479: syntax-diff-*, shiki-*, mermaid-embed-*).
Walk the generation's module graph: for every present JS chunk, parse its
inline __vite__mapDeps filename table (the lazy-import manifest Vite bakes
into each chunk) and check those files too, transitively and cycle-safe.
resolveRendererIndex now skips a lazy-chunk-torn candidate in favor of the
intact copy instead of shipping a delayed crash.
Tests cover the mapDeps parser (definition table vs index-only call sites,
CDN refs), the exact #93479 tear shape, transitive/cyclic walks, and the
torn-vs-intact preference end to end.
* fix(desktop): load the intact renderer bundle when an update tears one copy
index.html and the hashed chunks it names are one generation. A packaged app
ships that bundle twice (inside app.asar and, via asarUnpack, beside it in
app.asar.unpacked), so an update that replaces the app while its files are
locked can leave the two copies from different generations. resolveRendererIndex
took the first index.html that existed, so it could pick the torn one and the
window died on its first lazy import with "Failed to fetch dynamically imported
module" -- with no way out, because every relaunch reloaded the same copy.
Check each candidate's declared modules and prefer a complete generation; when
both are torn, log which files are missing and how to repair instead of leaving
the crash unexplained.
* fix(cli): rebuild the desktop app when its renderer bundle is half-replaced
The content stamp hashes the SOURCE tree, which an interrupted update leaves
intact, so `hermes desktop` reported "up to date" and skipped the rebuild that
would repair a torn bundle -- the app relaunched into the same crash and
reinstalling looked like the only option.
Treat a bundle whose index.html names missing chunks as stale regardless of the
stamp, and say so on the way into the rebuild.
hermes-seaeye[bot]