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import contextlib |
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from typing import Iterator, Any, Union, Dict |
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from pathlib import Path |
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import json |
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Json = Dict[str, Any] |
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PathLike = Union[str, Path] |
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@contextlib.contextmanager |
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def update_json(path: PathLike) -> Iterator[Json]: |
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exists = Path(path).exists() |
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with open(path, "r+" if exists else "w") as fo: |
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data = json.load(fo) if exists else {} |
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yield data |
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json_data = json.dumps(data, indent=2) |
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fo.seek(0) |
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fo.write(json_data) |
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fo.truncate() |
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def write_system_metrics(path: PathLike, data: Json) -> None: |
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with update_json(f"{path}/metadata.json") as orig_data: |
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metrics = orig_data.get("metrics", {}) |
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system = metrics.get("system", {}) |
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system.update(data) |
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metrics["system"] = system |
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orig_data["metrics"] = metrics |
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