* fix(indextts): accept the config name upstream ships, and keep long text alive
Two independent defects, both reported on a working IndexTTS 2.5 install.
Install always failed. IndexTeam/IndexTTS-2.5 ships the model config as
config.yaml — at the pinned revision d0aa86e7 and at HEAD; config_v2_5.yaml
exists in no upstream revision. VoiceStudio demanded that name, so
_weights_floor_ok never found it and the install died claiming 'the download
was likely interrupted' when the download had been perfect. The only way
through was to hand-rename the file. Both names are accepted now, in the
installer and on the load path, so installs created with the workaround keep
working without a reinstall.
Long text was killed at 60s. infer() is one blocking upstream call that puts
nothing on the wire, and IndexTTS was the only sidecar still on the 60s
recv_timeout_s class default while pockettts and omnivoice-subprocess had both
raised theirs. Raising the default alone does not fix it — which is why the
reporter's RECV_TIMEOUT_S=3600 edit didn't help: progress frames are also what
report activity to the GPU pool's execution clock (#1367), so a silent sidecar
still trips the outer generate budget. The sidecar now heartbeats every 5s
while infer() runs (and during the cold model construction), _send takes a
lock so the beat thread can't interleave framing, and the deadline rises to
900s via OMNIVOICE_INDEXTTS_RECV_TIMEOUT_S.
test_indextts25_health_requires_25_config_name asserted the bug — that a
checkout holding only config.yaml is unhealthy — so it is rewritten to the
corrected contract, including that a genuinely truncated download is still
caught.
Fixes#1611
* test(indextts): follow the installed config name in the sidecar loader tests
Two more tests encoded the config_v2_5.yaml assumption, both asserting
cfg_path against a directory where no config existed at all — so they were
pinning the literal name rather than the resolution. They now lay down a real
checkpoints/ tree and assert the resolved path, including that a checkout
carrying the pre-fix hand-renamed config still resolves.
Caught by the full suite; the targeted runs during development did not reach
tests/backend/services/.
* test(indextts): event-driven heartbeat tests, real interleaving proof, precedence pin
Review round on #1619 — all four findings taken.
- The docs line naming 0.5.1 is version-neutral now ('Earlier installs') —
version labels are the owner's call.
- The heartbeat tests waited on wall-clock sleeps; they now block on a
per-write Event with a bounded deadline, so scheduler load can't flake them.
- The _send test asserted the lock EXISTS — a tautology. It now drives four
concurrent writers through a stream that yields between every byte and
asserts every frame decodes; verified fail-before by removing the lock
(torn frame) and pass-after.
- The precedence test deleted config.yaml before creating the renamed one, so
reversed precedence still passed. Both files now coexist for the assertion;
verified fail-before by reversing _CFG_NAMES.
Palash Debnath
43f1d46fe6