Add canonical component manifests - #665
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Pull request overview
This PR introduces a canonical, immutable “component manifest” layer that centralizes per-component metadata (name, module path, optimization role, and HF source-path ownership). It integrates this manifest into component inspection and build-time optimization role selection while preserving existing graph/weight behavior.
Changes:
- Added
ComponentDescriptor/ComponentManifestplusresolve_component_manifest()andget_hf_component_sources()as the canonical component-metadata API. - Added
ModelTask.component_manifest()and updatedinspect_components()to source roles + HF paths through the manifest. - Switched build-time optimization role selection in
build_from_module()to consult the manifest.
Reviewed changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| src/mobius/tasks/_base.py | Adds ModelTask.component_manifest() as a task-level entrypoint to resolve canonical component metadata. |
| src/mobius/_inspect.py | Routes HF component source resolution + inspect_components() output through the new manifest API. |
| src/mobius/_component_manifest.py | Introduces immutable component descriptor/manifest types and the canonical resolution helpers. |
| src/mobius/_component_manifest_test.py | Adds unit tests for manifest resolution, dynamic HF source resolvers, and duplicate-name validation. |
| src/mobius/_builder.py | Uses the manifest for selecting optimization roles per package entry during build-time optimization. |
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🏗️ Architecture Diff
No architecture changes detected. ✅ Legend: ⚪ No change · 🔵 Minor (attrs/inits) · 🟡 Moderate (nodes added/removed) · 🔴 Major (interface changed) |
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Resolve task roles, module paths, and HuggingFace source ownership into one immutable manifest. Switch inspection and optimization-role lookup to the shared metadata without changing graph or weight behavior. Signed-off-by: Xiaoyu Zhang <xiaoyuzhang@microsoft.com>
Derive candidate HuggingFace module names from component-local paths so later loader stages can apply exact and regex quantization exclusions consistently. Signed-off-by: Xiaoyu Zhang <xiaoyuzhang@microsoft.com>
Only derive HuggingFace module candidates when a declared source root shares an anchor with the component-local path, preventing unrelated roots such as lm_head from matching every decoder module. Signed-off-by: Xiaoyu Zhang <xiaoyuzhang@microsoft.com>
Allow model declarations to map component-local module prefixes to HuggingFace source prefixes when structural anchor inference is insufficient. Signed-off-by: Xiaoyu Zhang <xiaoyuzhang@microsoft.com>
Rename module_path to module_attribute_path and document task-defined optimization roles so callers cannot confuse Python module ownership with package or checkpoint prefixes. Signed-off-by: Xiaoyu Zhang <xiaoyuzhang@microsoft.com>
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Summary
ComponentDescriptorandComponentManifesttypesHF_COMPONENT_SOURCESthrough one canonical APIinspect_componentsand build-time optimization role selection to the manifestComponentSpecand graph/weight behaviorStack
Validation