mirror of
https://github.com/thegeeklab/docker-tidy.git
synced 2024-11-24 21:20:42 +00:00
28 lines
592 B
Python
28 lines
592 B
Python
#!/usr/bin/env python3
|
|
"""Global utility methods and classes."""
|
|
|
|
from distutils.util import strtobool
|
|
|
|
|
|
def to_bool(string):
|
|
return bool(strtobool(str(string)))
|
|
|
|
|
|
def dict_intersect(d1, d2):
|
|
return {
|
|
k: dict_intersect(d1[k], d2[k]) if isinstance(d1[k], dict) else d1[k]
|
|
for k in d1.keys() & d2.keys()
|
|
}
|
|
|
|
|
|
class Singleton(type):
|
|
"""Singleton metaclass."""
|
|
|
|
_instances = {}
|
|
|
|
def __call__(cls, *args, **kwargs):
|
|
|
|
if cls not in cls._instances:
|
|
cls._instances[cls] = super().__call__(*args, **kwargs)
|
|
return cls._instances[cls]
|