`diet-guard log ...` blocked for ~15.5s after every meal. The publish itself
has to happen -- until it lands the phone still believes the slot is unlogged
and nags for it -- but only ~2.5s of that is the 293KB push the phone needs;
the rest is pulling peers' banks, which publishing does not require.
The local write is already durable before the publish starts, so the worst
case is a late publish, which is the trade `_sync_events` already documents
for the event-driven model. Moving it to a worker thread lets the caller
print and return at once. Measured: 15.5s -> 2ms before the prompt comes back.
The thread is deliberately non-daemon: the CLI's output is already flushed,
so the process lingers only as long as the push, and the publish is never
killed halfway. A failure still surfaces, via a callback the caller supplies,
just after its own output rather than in the middle of it.
Deliberately NOT applied to the gate. `diet-guard-gate.service` is
`Type=oneshot`, so systemd reaps the unit the moment the main thread exits
and a background publish would be killed mid-push. The gate keeps calling
`publish_after_log` and waiting, which is correct there -- its publish
already runs after the window is gone, where nobody is waiting on it.
`conftest._isolate_state` follows the rename to
`publish_after_log_detached`; without that every meal-logging test would
reach the network through a newly unpatched seam. Verified with
`scripts/check_patch_targets.py` and by timing the real command against a
temporary data dir, never the live log.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LJ5YnA3CERitQ57HjMu2Qz
The gate's pre-lock refresh ran a *full* sync tick -- peer logs, budget,
both food banks, a rebuild and a push -- in front of the fullscreen lock.
Measured against the live remote: ~18-27s, of which the curated-bank loop
alone was 17s spent fetching nothing (absent on Firebase for every peer, so
each of ~21 peers fell through to a GitHub round trip returning `{}`).
It was also failing: five `sync unavailable (network error trying to refresh
the session)` entries in the last five days, one of them a meal that logged
locally but never published.
The gate has one question -- "has a peer already logged this slot?" -- and
only the peer logs can answer it. `_sync_refresh` does that and nothing
else: one bulk revision-map read, a fetch of only the peers whose revision
moved, merge, re-sign, write. No budget, no banks, no push. The full tick
still runs, after the window closes, so nothing is permanently skipped --
the exhaustive pass just moves off the path the user waits on.
Three state invariants have their own regression tests, because each is
silent when broken: `pushed_rev` survives verbatim (this pass never pushes,
and overwriting it would make the device stop publishing forever),
`peer_revs` is merged rather than replaced (only changed peers are visited),
and the log is written before the state.
Separately, `gate --check` was importing an HTTP stack and a GUI it never
uses. `requests` (~78ms) arrived via `_cli_sync` -> `crdt_sync` and via
`_resolve` -> `_estimator_off`; both are now resolved through module-level
`__getattr__` (PEP 562) and `import_module`, which keeps every existing
`patch.object` target and needs no lint suppression.
Measured: `gate --check` 216ms -> ~110ms; narrow pull 92ms against the live
remote. Accepted trade, documented in `_sync_refresh`: a budget edited on
the phone is not visible in the lock dashboard until the post-window tick.
It cannot affect the lock decision, which is why it is safe to defer.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LJ5YnA3CERitQ57HjMu2Qz
The periodic diet-guard-sync.timer paid a network round-trip every ~15 min to
approximate the two moments the shared log actually changes on this device.
Sync now fires on those events instead:
* before a lock -- already present in _cli_gate._should_lock, which pulls only
when a lock is otherwise due, so a phone-logged meal clears the lock and a
not-due tick never touches the network;
* after a meal is logged here -- new _sync_events.publish_after_log, wired into
all three write paths (_cli_log, _cli_gate, _mcp). This is what stops the
PHONE nagging for a slot already logged on the PC, the mirror image of the
rule that keeps the phone's own tick unconditional.
The gate's publish sits in cmd_gate AFTER MealGate.run() returns, never in the
unlock handler: that runs on the Tk thread with the window still up, so a
hanging network call would keep the user locked in behind a successful log. It
also covers the "Synced from another device" unlock, which hooking log_meal
would miss.
Accepted trade: a PC that is on but neither logging nor locking no longer
pulls, so an inbound phone edit lands at the next log or lock rather than
within 15 min. Bounded by slot spacing -- an unlogged day raises a lock.
install.sh now disables and removes the installed timer (guarded, since a fresh
machine has no such unit and `disable` would abort under `set -euo pipefail`);
the .service stays for manual one-off ticks.
Every test that logs a meal would otherwise reach the network through the new
call sites, so conftest patches publish_after_log at each of the three call
sites -- not on _sync_events, so test_sync_events still exercises the real
helper. Suite stays at ~8s, which is the actual leak detector.
Two files had to be split to commit at all, since file-length passes filenames
and both were already over the 250-line cap:
_cli.py 466 -> 207, + _cli_args.py, _cli_init.py, _cli_log.py
_mcp.py 370 -> 194, + _mcp_server.py (singleton + annotations), _mcp_read.py
Their conftest/test patch targets moved in the same commit; a stale target
redirects nothing and fails open.
Verified: 701 python tests at 100% branch coverage, 555 flutter tests,
`python -m diet_guard sync` -> 402 entries/exit 0, `gate --check` -> exit 0,
all five MCP tools still register, live ~/.local/share/diet_guard byte-identical.
Over-cap files: 44 -> 42.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RA9ynjqXPnexRQnR5oAuCC
