Phase 3 of the modernization plan: move the framework-free math out of
the comfy-coupled modules so Tier-0 tests can run on plain Linux without
ComfyUI, coremltools, or python_coreml_stable_diffusion.
New pure-core package (no comfy / coreml / mps imports):
- coreml_suite.core.latents: chunk_batch, merge_chunks
- coreml_suite.core.controlnet: expand_inputs, no_control,
extract_residual_kwargs, chunk_control
- coreml_suite.core.inputs: CoreMLInputs (chunks + coreml_kwargs)
- coreml_suite.core.sdxl: is_sdxl / is_sdxl_base / is_sdxl_refiner,
build_sdxl_time_ids (base len 6, refiner len 5), build_sdxl_text_embeds,
sdxl_model_function_wrapper
- coreml_suite.core.naming: compose_out_name, lora_names_from_params
Thin adapters keep the public import paths:
- coreml_suite.latents / coreml_suite.controlnet: re-export from core
- coreml_suite.models: CoreMLModelWrapper, CoreMLModelWrapperLCM,
add_sdxl_model_options (now uses the pure builders from core.sdxl),
get_latent_image, get_model_patcher remain framework-coupled
- coreml_suite.nodes: CoreMLConverter.convert now delegates the out_name
composition to core.naming.compose_out_name
Test infra:
- tests/unit/* re-pointed at coreml_suite.core.*
- test_chunks.py dropped `from comfy.model_management import ...` and
the dead `model_config` fixture (Phase 1 left it broken; Phase 3
removes it entirely)
- test_characterization_sdxl_options now targets the pure builders
directly via inspect.getclosurevars on the wrapper closure
- test_characterization_out_name now calls compose_out_name without the
heavy CoreMLConverter monkey-patching that Phase 2 needed
- tests/unit/test_tier0_purity.py: new gate that fails if comfy /
coremltools / etc leak into sys.modules during a pure `-m unit` run
(skipped in mixed runs where m2 / integration legitimately import them)
- tests/__init__.py + top-level conftest.py + pyproject addopts
`--import-mode=importlib --confcutdir=tests` together stop pytest from
importing the repo-root `__init__.py` (the ComfyUI custom-node entry
pulls in comfy)
- tests/conftest.py adds tier-aware collect_ignore so `-m unit` skips
tests/m2 + tests/integration at collection time
Verification:
- `pytest -m unit tests/` → 88 passed in ~2s; deterministic across runs
- Tier-0 purity gate confirms no comfy/coreml/etc in sys.modules
- m2 golden image (Phase 2 anchor) still hashes identical → refactor
produced bit-for-bit unchanged output
- `git diff main -- __init__.py coreml_suite/nodes.py` shows zero churn
to NODE_CLASS_MAPPINGS keys or INPUT_TYPES field names (public
workflow contract intact)
aszc-dev
5dafd261b7