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>
Move favicon, logo, logotype, and PNG icons from /public/ root to
/public/images/ so the HTTP log middleware can drop them by path
prefix. Extends the existing /assets/ skip in http_log_middleware to
cover /images/ as well, removing favicon/logo entries from the server
log without filtering by extension (which would risk muting future
extension-suffixed API routes).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Removes the light/dark toggle infrastructure in favor of a single dark
theme. Deletes the theme context, boot script, light-mode CSS overrides,
logotype-light asset, and the pierre-light diff theme. Collapses
graph-theme into a single constant. Adds scheme-only-dark on <html> so
native controls and the server-injected Graphviz @media query render
dark.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Remove the system color-scheme fallback from the web UI theme boot path.
Fabro now uses a saved light/dark preference when present and otherwise
starts in dark mode by default. Add a regression test for the shared
theme selection helper and refresh the built web assets.
Replace the old React Router SSR setup with a static SPA build served by
fabro-server, move setup and GitHub auth handling into Rust, and update the
default local web URL and stale Arc-era references to match the Fabro name.
