BackendConnection now captures the bundled FrankenPHP child's merged
stdout+stderr into a 500-line ring buffer, mirrors each line through
qCInfo(lcBundled) so terminal users still see logs, and exposes
childLogTail() / childLogLine for QML.
DevConsole.qml is an opt-in monospaced viewer with auto-scroll + clear
that the skeleton and the todo example bind to Ctrl+`. Dev mode (when
BRIDGE_URL is set, no bundled child) renders an explanatory hint.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Wires in the option-(a) sidecar approach: the AppImage carries a
bundled AppImageUpdate AppImage and an embedded update-info string
in the .upd_info ELF section. BackendConnection drives both the
check and the apply via QProcess.
BackendConnection:
- Q_INVOKABLE checkForUpdates()
Bundled mode only. Spawns AppImageUpdate.AppImage with
--check-for-update <APPIMAGE>. Exits 0 → noUpdatesAvailable,
1 → updatesAvailable, anything else → updateCheckFailed.
Dev mode: emits updateCheckFailed("…dev-mode only").
- Q_INVOKABLE applyUpdate()
Bundled mode only. Spawns AppImageUpdate.AppImage with
--remove-old <APPIMAGE>. Replaces the running AppImage in
place; user must restart. Emits updateApplied or
updateApplyFailed.
- Sidecar path resolves to applicationDirPath()/AppImageUpdate.AppImage
by default, overridable via BRIDGE_APPIMAGEUPDATE_BIN.
- APPIMAGE env (set by the AppImage runtime) determines the target
file. Outside an AppImage both methods fail loudly.
build-appimage.sh:
- Auto-downloads AppImageUpdate-x86_64.AppImage into the cached
tools dir and copies it into AppDir/usr/bin/AppImageUpdate.AppImage.
- New --update-info flag, forwarded to appimagetool's -u so the
.upd_info ELF section carries an "zsync|<URL>" string the sidecar
will fetch.
examples/todo Makefile forwards APPIMAGE_UPDATE_INFO env to the
script as --update-info.
release.yml:
- Builds the AppImage with APPIMAGE_UPDATE_INFO set to the canonical
Gitea Releases asset URL for this tag.
- Installs zsync, runs zsyncmake to generate Todo-x86_64.AppImage.zsync.
- Generates a JSON appcast (latest.json) with version / url / sha256 /
size / zsync URL / released_at — useful as an HTTP-fetchable
fallback for clients that prefer a structured manifest.
- SHA256SUMS now covers AppImage + zsync + latest.json.
- Uploads all four assets to the Gitea Release.
AppImage size grows from ~104 MB to ~152 MB with the sidecar bundled.
Embedding verified: objdump shows .upd_info populated with the
expected zsync URL after a local build.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Auto-detected on construction:
- BRIDGE_URL env set → dev mode (today's behaviour, unchanged).
- BRIDGE_URL unset → bundled mode: BackendConnection now
1. Resolves the user app data dir (QStandardPaths::AppDataLocation,
~/.local/share/<org>/<app> on Linux) and ensures var/, var/log/,
var/cache/ exist there.
2. Generates a per-session 32-byte URL-safe token and a 48-byte
Mercure JWT secret.
3. Runs `frankenphp php-cli bin/console doctrine:migrations:migrate -n`
against the user's DATABASE_URL with a 60s timeout.
4. Spawns FrankenPHP via QProcess with BRIDGE_TOKEN/MERCURE_*/PORT
in the env, prctl(PR_SET_PDEATHSIG, SIGTERM) on the child, and
a supervisor that re-spawns up to 5 times on unexpected exit.
Each restart fires tokenRotated(newToken).
Path resolution defaults to applicationDirPath() + bin/frankenphp,
applicationDirPath() + symfony, applicationDirPath() + Caddyfile, with
both `/../share/<app>/...` and `/../usr/share/<app>/...` fallbacks for
AppImage-style layouts. All three are overridable via
BRIDGE_FRANKENPHP_BIN / BRIDGE_SYMFONY_DIR / BRIDGE_CADDYFILE env vars.
Caddyfiles in skeleton + example now use {$VAR:default} substitution
for PORT and the Mercure JWT keys, so the same Caddyfile works in both
modes. Dev defaults match symfony/.env.
restart() in bundled mode re-spawns the child (resets the supervisor
counter); in dev mode it stays a probe-only no-op.
Smoke-tested locally with `BRIDGE_FRANKENPHP_BIN=… BRIDGE_SYMFONY_DIR=…
BRIDGE_CADDYFILE=… ./build/qml/todo` (no BRIDGE_URL): bundled mode
created ~/.local/share/php-qml/todo/var/data.sqlite, ran the migration,
spawned FrankenPHP, served /healthz, accepted a POST /api/todos with
the per-session bearer. Dev mode (`make dev`) still works unchanged.
Includes a `phpqml.bridge.bundled` Q_LOGGING_CATEGORY so failures
surface to the user; enable with QT_LOGGING_RULES='phpqml.bridge.bundled.*=true'.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
BackendConnection's ConnectionState enum is now Connecting / Online /
Reconnecting / Offline (PLAN.md §5). The probe loop tracks the first
failure since the last Online and transitions to Reconnecting on any
failed probe, then to Offline once the configurable threshold (30 s
default) is exceeded. The Error state is gone; Reconnecting + the
exposed `error` string subsume its UI role.
ReactiveListModel is the headline QML type:
- QAbstractListModel that GETs `baseUrl + source` for an initial JSON
array and then keeps in sync via an internal MercureClient subscribed
to `topic`.
- Role names are derived dynamically from the first row's keys plus an
internal `pending` boolean role used by optimistic mutations.
- Diff application: upsert (insert-or-update), delete, replace; gap
detection via the envelope `version` field with auto re-fetch.
- `invoke(method, path, body, optimistic)` is the optimistic command
primitive. Generates an Idempotency-Key, applies the local diff,
POST/PATCH/DELETEs with that key, and resolves on the matching
Mercure echo (correlation-key matched in ModelPublisher's envelope).
Rolls back and emits commandFailed on 4xx/5xx, commandTimedOut after
10 s without an echo. Phase 4 packaging will surface configuration
for the timeout.
AppShell.qml is the optional convenience root:
- Reads BackendConnection.connectionState.
- Reconnecting → top banner.
- Offline → modal overlay with the error string and a Retry button
(calls BackendConnection.restart()).
- Wraps user content via `default property alias content`.
Apps that want full chrome control can skip AppShell entirely; the
skeleton's Main.qml keeps its own status display for demonstration
and is unaffected.
ReactiveObject (single-entity twin of ReactiveListModel) is intentionally
deferred — same envelope handling, smaller surface; will land in Phase 2
follow-up or Phase 3 alongside the todo example. Cursor pagination is
similarly deferred (the Phase 2 done criterion uses small lists).
Smoke tested: /healthz + /api/ping round-trip cleanly, zero Mercure 401s,
clean shutdown. composer quality stays green (16 tests, 45 assertions).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
BackendConnection (QML singleton via create() factory) reads BRIDGE_URL
and BRIDGE_TOKEN from env, periodically probes <url>/healthz with a 2s
transfer timeout, and exposes a Connecting/Online/Error state machine
plus error/token properties to QML. Bundled-mode startup (spawning the
embedded FrankenPHP child) is a Phase 4 deliverable; restart() is a
no-op for now. tokenRotated signal is reserved for the per-session
secret rotation described in PLAN.md §3.
SingleInstance is C++-only — main() must call acquireOrForward() before
the QML engine boots, so it's exposed via context property rather than
QML_SINGLETON. QLocalServer-based lock with stale-socket detection,
launch-arg forwarding via QDataStream, and the deadlock-avoiding race
fallback specified in §3 *Edge cases*.
CMakeLists.txt declares the PhpQml.Bridge static QML module with both
sources and is dual-mode: stands alone for sanity builds, integrates
via add_subdirectory from the skeleton's top-level CMake (Phase 1
sub-commit 6). Standalone build verified clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
