mirror of
https://github.com/pre-commit/pre-commit.git
synced 2026-01-12 20:10:21 -06:00
38 lines
847 B
Python
38 lines
847 B
Python
|
|
import functools
|
|
import os
|
|
|
|
|
|
class cached_property(object):
|
|
"""Like @property, but caches the value."""
|
|
|
|
def __init__(self, func):
|
|
self.__name__ = func.__name__
|
|
self.__module__ = func.__module__
|
|
self.__doc__ = func.__doc__
|
|
self._func = func
|
|
|
|
def __get__(self, obj, cls):
|
|
if obj is None:
|
|
return self
|
|
value = self._func(obj)
|
|
obj.__dict__[self.__name__] = value
|
|
return value
|
|
|
|
|
|
def memoize_by_cwd(func):
|
|
"""Memoize a function call based on os.getcwd()."""
|
|
@functools.wraps(func)
|
|
def wrapper(*args):
|
|
cwd = os.getcwd()
|
|
key = (cwd,) + args
|
|
try:
|
|
return wrapper._cache[key]
|
|
except KeyError:
|
|
ret = wrapper._cache[key] = func(*args)
|
|
return ret
|
|
|
|
wrapper._cache = {}
|
|
|
|
return wrapper
|