56 lines
1.4 KiB
Python
56 lines
1.4 KiB
Python
import os
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import sys
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class NoEnvironmentFile(Exception):
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pass
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class LocalEnv:
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def __init__(self):
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self.file = None
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self.data = {}
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def load(self, file=None):
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"""
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If no file is defined, the .env file will be searched
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in invoker module's directory
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"""
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if file is not None:
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self.file = file
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else:
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self.file = self._invoker()
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if not os.path.isfile(self.file):
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raise NoEnvironmentFile(f'for file {self.file}')
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with open(self.file) as f:
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for line in f:
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line = line.strip()
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if not line or line.startswith('#') or '=' not in line:
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continue
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key, value = line.split('=', 1)
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key = key.replace('export', '')
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key = key.strip()
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value = value.strip().strip('\'"')
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self.data[key] = value
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def get(self, key, cast=None):
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if cast is None:
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return self.data[key]
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return cast(self.data[key])
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@staticmethod
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def _invoker():
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# tip from:
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# https://github.com/henriquebastos/python-decouple/blob/master/decouple.py
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# MAGIC! Get the caller's module path.
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frame = sys._getframe()
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path = os.path.dirname(frame.f_back.f_back.f_code.co_filename)
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file = os.path.join(path, '.env')
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return file
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localenv = LocalEnv()
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