45 lines
1.0 KiB
Python
45 lines
1.0 KiB
Python
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import json
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import os
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class LocalCache:
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"""
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A file-based cache for storing and retrieving simple data in JSON format.
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"""
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DIR = "local_cache"
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def __init__(self, name: str, base_path: str):
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self._name = name
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self._cache = {}
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self._base_path = base_path
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cache_dir = os.path.join(base_path, self.DIR)
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os.makedirs(cache_dir, exist_ok=True)
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self._cache_file = os.path.join(cache_dir, f"{name}.json")
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self.load()
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@property
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def name(self):
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return self._name
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def load(self):
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try:
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with open(self._cache_file, "r") as f:
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self._cache = json.load(f)
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except FileNotFoundError:
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pass
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def save(self):
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with open(self._cache_file, "w") as f:
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json.dump(self._cache, f)
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def get(self, key: str):
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return self._cache.get(key)
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def set(self, key: str, value):
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if self._cache.get(key) != value:
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self._cache[key] = value
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self.save()
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