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-rw-r--r--lib/python/qmk/decorators.py36
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/python/qmk/decorators.py b/lib/python/qmk/decorators.py
index f8f2facb1c..629402b095 100644
--- a/lib/python/qmk/decorators.py
+++ b/lib/python/qmk/decorators.py
@@ -2,6 +2,7 @@
"""
import functools
from pathlib import Path
+from time import monotonic
from milc import cli
@@ -84,3 +85,38 @@ def automagic_keymap(func):
return func(*args, **kwargs)
return wrapper
+
+
+def lru_cache(timeout=10, maxsize=128, typed=False):
+ """Least Recently Used Cache- cache the result of a function.
+
+ Args:
+
+ timeout
+ How many seconds to cache results for.
+
+ maxsize
+ The maximum size of the cache in bytes
+
+ typed
+ When `True` argument types will be taken into consideration, for example `3` and `3.0` will be treated as different keys.
+ """
+ def wrapper_cache(func):
+ func = functools.lru_cache(maxsize=maxsize, typed=typed)(func)
+ func.expiration = monotonic() + timeout
+
+ @functools.wraps(func)
+ def wrapped_func(*args, **kwargs):
+ if monotonic() >= func.expiration:
+ func.expiration = monotonic() + timeout
+
+ func.cache_clear()
+
+ return func(*args, **kwargs)
+
+ wrapped_func.cache_info = func.cache_info
+ wrapped_func.cache_clear = func.cache_clear
+
+ return wrapped_func
+
+ return wrapper_cache