6271a715a1
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Split from coop monolith. Includes: - Market/browse/product blueprints - Product sync API - Suma scraping pipeline - Templates for market, browse, and product views - Dockerfile and CI workflow for independent deployment
21 lines
625 B
Python
21 lines
625 B
Python
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from __future__ import annotations
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from typing import Callable, Dict, List, Union
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Extractor = Callable[[object, str], Dict[str, Union[str, float, int, list, dict, None]]]
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REGISTRY: List[Extractor] = []
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def extractor(fn: Extractor) -> Extractor:
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"""Decorator to register an extractor."""
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REGISTRY.append(fn)
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return fn
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def merge_missing(dst: dict, src: dict) -> None:
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"""
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Merge src into dst. Only write keys that are missing or empty in dst.
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"Empty" means None, "", [], {}.
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"""
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for k, v in (src or {}).items():
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if k not in dst or dst[k] in (None, "", [], {}):
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dst[k] = v
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