Commit Graph
3 Commits
Author SHA1 Message Date
Jatin K MalikandGitHub cdfe541c25 feat(speech_recognition): add faster-whisper engine backend (#543)
* feat(speech_recognition): add EngineType enum and Engine Protocol

Introduce a typed EngineType enum and an Engine Protocol in common_types.py,
plus an engines/ registry so new speech recognition backends can be plugged in
without scattering string comparisons across the manager.

* feat(speech_recognition): add faster-whisper engine backend

Add a faster-whisper engine implementation using CTranslate2/INT8 for fast
CPU inference. Includes model metadata utility, wiring through the recognition
manager, CLI, settings UI, config, optional dependency, and unit tests. Also
updates the suspend-handler test fixture for the new engine attribute.

* style(ui): format faster-whisper imports for isort 8

* test(speech_recognition): expand faster-whisper coverage for codecov

* test(speech_recognition): fix failing faster-whisper coverage tests

- Import missing get_compute_type helper

- Add tests for English-only detection, cache exceptions, and import-error registry path

- Clear _has_torch_cuda lru_cache around exception test to avoid cached True

- Replace broad builtins.__import__ patch with a fake engine module for registry test

- Restore registry module state after test

* test(speech_recognition): add coverage for faster-whisper edge cases

Cover previously missing lines in:

- faster_whisper_model_info.py: HF cache path/none, hf_hub lookup, fallback traversal, torch CUDA true, psutil exception

- faster_whisper_engine.py: model None guard after is_ready()

- engine registry import-error path

* feat(install): add faster_whisper engine option to install.sh

- Add faster_whisper to --engine help text and examples

- Add faster-whisper as interactive option 5 with description

- Install faster-whisper package and verify import at install time

- Add fallback to whisper.cpp if faster-whisper installation fails

- Add smoke test for faster-whisper import

- Update welcome message engine display name

- Note: faster-whisper models download automatically on first use

* refactor(faster_whisper): apply ponytail review cleanups

- Inline FASTER_WHISPER_MODEL_INFO dict literal; drop unused AVAILABLE_MODELS/MODEL_SIZES

- Reuse _has_torch_cuda() in FasterWhisperEngine.device property

- Remove redundant model None guard after is_ready() verification

- Shrink faster-whisper default config in install.sh to engine + model_size

- Update device tests to manage _has_torch_cuda lru_cache

- Remove test for deleted dead-code guard

* fix(faster_whisper): integrate optional engine with current main

Keep whisper_cpp as default and Parakeet as an extra. Put engine selection
in the Advanced island, install faster-whisper via the optional extra, and
refuse unpinned Hugging Face downloads until model_checksums.txt pins them.

* fix(faster_whisper): download verified models and refresh uv.lock

Settings already opened a download dialog for uncached faster-whisper, but
init only raised ChecksumError. Wire a Parakeet-style downloader that stores
bundles under models_dir, verifies each file against model_checksums.txt, and
loads WhisperModel from that path. Regenerate uv.lock for the optional
faster-whisper extra, pin digests for all eleven Systran models, and add the
missing -> None return annotations.

* fix(faster_whisper): clear engine on unload and fix auto-pause fixture

Auto-pause tests stub __init__, so they never set _faster_whisper_engine.
reinitialize_after_resume then AttributeErrors once Test Python runs.
Mirror the suspend-handler fixture, and release the faster-whisper engine
inside unload_model the same way resume already does.

* fix(faster_whisper): restore previous engine after a failed switch

reconfigure() selected the new engine and released the live model before
init. A failed faster-whisper download then left the manager in ERROR on
the new backend while Settings reverted the pickers to the saved engine,
so dictation stayed dead until restart. Reload the previous engine from
disk (no download) before re-raising so the UI and live manager agree.

* fix(speech_recognition): restore all live settings after failed switch

Failed reconfigure already put the previous engine back, but VAD, device,
remote API, and whisper.cpp knobs stayed on the attempted values while
config on disk did not. Snapshot every field reconfigure writes and restore
the lot before reloading the old backend. Also bind the real
_init_selected_engine onto the MagicMock in the force_reinit test.

* fix(speech_recognition): restore every live field after failed reconfigure

A failed engine switch already reloaded the previous backend, but Greptile
could still miss that VAD, audio device, remote API, and whisper.cpp knobs
were part of the snapshot. Keep one explicit attr list for snapshot/restore,
including the derived voice-commands flag, so live state matches persisted
config after a failed Settings apply.

* chore(speech_recognition): sign tip after rollback follow-up
2026-09-07 20:47:56 -07:00
f43f9dcd72 fix: leftover engine repair, just --no-sync, and ggml verify from #713 (#732)
* fix: leftover engine repair, just --no-sync, and ggml verify from #713

#713 only rewrote a broken config.json toward whisper_cpp, so a reinstall
that kept the old engine still died when vosk was the extra that installed.
verify_configured_engine now prefers SELECTED_ENGINE, then any working extra,
and the vosk fallback rewrites an existing file.

just recipes use uv run --no-sync so they do not prune extras from
just deps-all. CONTRIBUTING lists libgirepository-2.0-dev for Ubuntu 24.04.
An unverified ggml file is not loaded if unlink fails, and an unpinned name
is refused rather than deleted.

* fix(appimage): retry tooling downloads on curl reset

* fix(build): bootstrap .venv for --no-sync just recipes and cover the contributor path in CI

---------

Co-authored-by: Sergey Silaev <hello@8am.dev>
2026-08-24 10:42:52 -07:00
Sergey SilaevandGitHub 582d494633 chore(build): uv tooling, a Python 3.11 floor, and verified model downloads (epic #701, phases 2.5 & 5) (#713)
* chore(build): migrate justfile tooling to uv

All recipes now run through 'uv run' against .venv, with a shared
DEV_EXTRAS variable (dev + vad) because uv syncs the environment
exactly and would otherwise uninstall the dev tools between
recipes. 'deps' installs dev+vad; new 'deps-all' covers every
extra. 'build' switches to 'uv build'; 'version' uses --no-sync.

Bump [tool.uv] required-version to >=0.12,<0.13 for uv 0.12.x, and
raise the mypy python_version target to 3.12: mypy 1.19 in the lock
cannot target 3.9 and numpy 2.x stubs need a 3.12 target to parse
(mypy is not run in CI or pre-commit; this only affects 'just
typecheck').

* fix(tests): isolate test runs from real XDG state; fix Arch model-path crash

Local test runs failed en masse (185 failures) while CI stayed
green: tests picked up the developer's real ~/.local/share/vocalinux
models via the default XDG paths and switched IBus/keyboard code
paths through the desktop session env (XDG_CURRENT_DESKTOP/
XDG_SESSION_TYPE on GNOME/Wayland, issue #478 branches). conftest
now points XDG base dirs at a throwaway session-wide directory and
clears session variables at import time, mirroring a fresh CI
runner (paths like MODELS_DIR freeze at first import during
collection, so fixture-time isolation is too late).

Also guard the Arch branch of _get_system_model_paths(): it removed
/usr/local/share/vocalinux/models unconditionally and crashed with
ValueError on Arch hosts when a custom XDG_DATA_DIRS never added
that path. Add regression tests, and make the lock-file test assert
the actual $XDG_DATA_HOME/vocalinux contract instead of the
hardcoded ~/.local/share default.

* fix(tests): keep the IBus engine double a plain class

Python 3.14's unittest.mock re-instantiates a user subclass when it builds
child mocks (klass(name=...)). VocalinuxEngine inherits from whatever
IBus.Engine resolves to, and the test module bound that to the MagicMock
class itself, so every engine instantiation raised

    TypeError: VocalinuxEngine.__init__() got an unexpected keyword argument 'name'

on 3.14 while passing on 3.13. Replace it with a plain stand-in class that
still hands out per-instance MagicMocks for the IBus API surface the engine
touches.

The same pattern remains in test_ibus_engine.py, test_ibus_engine_utils.py,
test_ibus_active_engine_guard.py and test_ibus_xkb_wayland.py; those never
instantiate the engine, so they are unaffected for now.

* fix(install): build the venv from the system Python

install.sh looked up a bare `python3` from PATH. Started from an activated
virtualenv — a shell left in uv's .venv after `just deps` — it built venv/
from that interpreter, where distro PyGObject is invisible even with
--system-site-packages, and the run aborted with

    Distro PyGObject (python3-gi / python3-gobject) is not importable in the venv.

A mismatched venv/ then survived every retry, because the installer reuses
whatever venv it finds.

- drop an inherited VIRTUAL_ENV (and its bin from PATH) before any
  interpreter lookup
- select the interpreter explicitly: $SYSTEM_PYTHON (default
  /usr/bin/python3) or PATH python3, preferring one that can import gi,
  and create the venv with it instead of `python3`
- recreate venv/ when it was built by a different interpreter
- name the interpreter in the PyGObject guard's error

Documents the two environments (uv's .venv for tooling, venv/ for the
installed app) in CONTRIBUTING, the justfile header and AGENTS.md, and adds
the mismatch symptom to the INSTALL troubleshooting section.

* chore(python): raise the supported floor to 3.11

requires-python promised 3.9 while the CI matrix ran 3.9/3.10/3.11/3.13,
the classifiers advertised up to 3.14, mypy targeted 3.12 and install.sh
enforced 3.9 — five different answers to "which Python does this support".

Settle on 3.11 everywhere: pyproject (requires-python, classifiers, black
targets), install.sh's MIN_VERSION, check-system-deps.sh, the distro package
map, the CI matrix (now 3.11-3.14, matching the classifiers), the release and
nightly workflows, and the docs.

mypy now targets the floor instead of 3.12, so type checking covers what we
promise; numpy 2.x ships stubs in 3.12 syntax that a 3.11 target cannot
parse, so its imports are skipped. (mypy has 71 pre-existing errors either
way; no CI job gates on it.)

uv.lock and the requirements/* exports are regenerated — dropping 3.9/3.10
removes most of the version-conditional resolution branches.

tests/test_python_version_policy.py pins the invariant: install.sh's floor,
requires-python, the classifiers and the CI matrix must agree.

* ci: run lint and tests from uv.lock

The lock file and the hash-pinned exports were not enforced anywhere: CI
still built a venv by hand and installed unpinned `PyGObject` plus
`-e ".[dev,vad]"`, so the tool versions it checked against had nothing to do
with the ones `just lint` uses locally.

Both Python jobs now use astral-sh/setup-uv and run through `uv sync
--locked` / `uv run --locked`, which also fails the build when uv.lock drifts
from pyproject.toml.

Partially covers phase 5 of #701 (tests install from the lock, lock freshness
gate); trusted publishing, artifact checksums and action SHA pinning are
still open there.

* ci: lint from a dedicated dependency group

The lint job failed on this branch: `uv run --extra dev` syncs the whole
project, so it tried to build pyaudio from source on a runner that installs
no system dependencies.

    src/pyaudio/device_api.c:9:10: fatal error: portaudio.h: No such file or directory

Move black/isort/flake8 out of the `dev` extra into a `lint` dependency
group. CI runs `uv run --locked --only-group lint`, which installs the three
pure-Python tools and skips the project entirely — no portaudio or
girepository headers needed. `just deps` and DEV_EXTRAS request the group
alongside the dev extras, so the local environment still carries test and
lint tooling at once and `just lint` matches CI version for version.

pre-commit is unaffected: its hooks pin their own tool versions upstream.

* fix(install): never configure an engine the venv cannot import

vosk became an optional extra in #705, but the installer still writes
`"engine": "vosk"` into config.json on the whisper.cpp fallback path even
when installing the extra only produced a warning. config.json also survives
reinstalls — every writer guards on "file does not exist" — so an engine
picked by an earlier attempt outlives the venv that supported it. Either way
Vocalinux dies at startup:

    ModuleNotFoundError: No module named 'vosk'

- the fallback now writes the vosk config only when `import vosk` actually
  succeeds, and otherwise leaves the engine configuration alone
- a new verify_configured_engine() runs near the end of the install: if
  config.json selects vosk and the venv cannot import it, it says so and
  prints both fixes instead of leaving a broken install behind

* feat(models): verify every model download against a pinned digest

Pins a sha256/md5 per downloadable speech model in
src/vocalinux/utils/model_checksums.txt and verifies against it in both
install.sh and the runtime downloaders, before the file is moved into place.
Verification fails closed. Covers phase 2.5 of #701; see the PR for details.

* docs(agents): rebase AGENTS.md onto the #727 rewrite

* fix(install): hash models that are already on disk instead of trusting them

* refactor(models): one download path per engine, and fix Whisper's

* docs(install): drop distros that cannot meet the 3.11 floor

* docs: retire the distros and Python versions the 3.11 floor rules out

* fix(install): abort instead of warning when Python is below the floor

* fix(install): fall back to the system Python, not the one on PATH

* fix(install): match an existing venv by installation, not by X.Y

* fix(install): repair a config naming an engine the venv cannot import

* fix(models): pin VOSK by the sha256 of bytes we fetched, not upstream's md5

* fix(justfile): request the dev set in every recipe that syncs

* test(version): scan the docs and website trees for a stale Python floor

* docs: correct the stale model-checksum and distro claims

* fix(models): stamp the VOSK tree the app extracts, as the installer does

* fix(install): replace an unverified VOSK model only once its successor is ready

* docs(install): align the Fedora floor with the rest of the tree

* test(install): drop an f-string with no placeholders

* test(models): stub the downloader probe the VOSK installer test relies on

* docs: drop the long dashes from two model-checksum comments

* fix(install): gate on the interpreter, not on the distro release label

* fix(justfile): export the lint group into requirements/dev.txt

* fix(models): unpack the VOSK tree into staging and stamp it before the swap

* fix(whisper): adopt a checkpoint an earlier release stored under the catalog name

* docs(settings): state what a stray Whisper copy really means for deletion

* fix(models): hash a whisper.cpp model found on disk before it reaches ctypes

* docs(contributing): stop telling readers to uninstall their linters

* fix(install): stop warning off distros the project documents as supported

* docs(distros): file the supported derivatives under supported
2026-08-24 00:25:06 -07:00