HPI/my/core/cachew.py
2020-07-31 12:22:13 +01:00

46 lines
1.1 KiB
Python

# TODO this probably belongs to cachew? or cachew.experimental
from contextlib import contextmanager
from pathlib import Path
def disable_cachew():
'''
NOTE: you need to use it before importing any function using @cachew.cachew
'''
# TODO not sure... maybe it should instead use some hook.. it's a ibt ugly do
import cachew
@cachew.doublewrap
def cachew_off(func=None, *args, **kwargs):
return func
old = cachew.cachew
cachew.cachew = cachew_off
return old
@contextmanager
def disabled_cachew():
import cachew
old = disable_cachew()
try:
yield
finally:
cachew.cachew = old
def cache_dir() -> Path:
'''
Base directory for cachew.
To override, add to your config file:
class config:
cache_dir = '/your/custom/cache/path'
'''
import my.config as C
common_config = getattr(C, 'common', object())
# TODO if attr is set _and_ it's none, disable cache?
cdir = getattr(common_config, 'cache_dir', None)
if cdir is None:
# TODO fallback to default cachew dir instead?
return Path('/var/tmp/cachew')
else:
return Path(cdir)