A tab left open across a deploy keeps running the previous build's
JavaScript indefinitely. index.html is fetched only on a full page load,
all later navigation is client-side, and hashed bundles are served
`immutable`, so nothing reveals that the code is stale. This produced a
false-positive bug report where two correctly-deployed fixes appeared to
be missing.
Publishes a build id and offers a reload when the running document falls
behind. The toast never reloads on its own; the only automatic reload is
recovery from a chunk that no longer exists.
Build id derivation
-------------------
The obvious approach — hash the emitted asset filenames, which already
embed content hashes — does not work: Bun's minified identifier naming is
not deterministic. Building an unchanged tree twice produces byte-different
output roughly one run in three (same length, ~100k differing bytes, all of
it mangled names). Output hashes therefore move with no source change,
which would fire the toast on redeploys of identical code and train people
to ignore it.
The id is instead derived from the bundle's source inputs, so it changes if
and only if something we control changed. Verified stable across eight
consecutive builds while the entry hash flipped between both variants.
This non-determinism also means two builds of the same commit embed
different bytes into the server binary, which is worth addressing
separately for reproducible builds.
Detection
---------
SWR with `refreshInterval` + `revalidateOnFocus`, per the repo's React
effects policy. SWR does not poll while the document is hidden, so
background tabs stay quiet without extra gating. Unknown state on either
side — missing meta tag, failed fetch, 503 during a dev rebuild — never
produces a prompt.
Stylesheet hashing
------------------
Tailwind's output was stable-named and therefore served `no-cache`, letting
a tab revalidate into new CSS while running old JS. Tailwind purges unused
classes per build, so classes the old bundle still emits could silently
lose their styles. It is now content-hashed and moves with the build.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
## Summary
- The TypeScript CI on main started failing because two tests in
`apps/fabro-web/scripts/build.test.ts` shell out to a real production
Vite build and were hitting Bun's default 5000ms test timeout.
- When the test timed out, Bun killed the build subprocess (SIGTERM →
exit 143), reported as `build failed with code 143`.
- Raise the per-test timeout to 60s on the two build-running tests so CI
variance no longer kills the build.
Failing run:
https://github.com/fabro-sh/fabro/actions/runs/26042062252/job/76556114190
## Test plan
- [x] `cd apps/fabro-web && bun test scripts/build.test.ts` passes
locally
- [ ] TypeScript CI passes on the PR
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
In --watch-web dev mode the server silently fell back to the embedded SPA
snapshot whenever the disk dist/ was missing or partial, so edits to the
web app appeared not to take effect with no error anywhere. This change
makes the dev loop visible and quick:
- static_files plumbs a dev_disk_only flag from RouterOptions.watch_web
into the fallback handler. When set, embedded fallback is skipped and
a miss returns 503 with a "build in progress" auto-refresh page.
- The web build script writes each rebuild into apps/fabro-web/.dist-builds/<id>/
and atomically replaces the dist symlink via rename(2), so requests
never observe a partially-populated dist tree.
- Tailwind is invoked through node_modules/.bin/tailwindcss directly
instead of bunx, removing a per-rebuild bun add @latest --force round-
trip and dropping rebuild time from ~10s to ~250ms.
- load_asset no longer falls through to the workspace dist/ when an
explicit asset_root is provided, restoring test isolation when a
real dev build is sitting next door.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Always route non-empty Files Changed views through Pierre's Virtualizer and worker pool, with full-height layout propagation and stable per-file cache keys. Copy Pierre worker assets during the web build so the static worker URL resolves in production.
Keep project config and checked-in workflows under .fabro so they stay out of
normal repo listings. Update config discovery, CLI project commands, fixtures,
docs, and checked-in workflow paths to use .fabro/project.toml and
.fabro/workflows/*.
Replace the unsupported Bun.watch call in the SPA build script with
node:fs.watch so `bun run dev` keeps running in local development.
Add a regression test that verifies watch mode stays alive until
interrupted.
