3b1b-manim/manimlib/utils/cache.py

49 lines
1.3 KiB
Python

from __future__ import annotations
import os
from diskcache import Cache
from contextlib import contextmanager
from functools import wraps
from manimlib.utils.directories import get_cache_dir
from manimlib.utils.simple_functions import hash_string
from typing import TYPE_CHECKING
if TYPE_CHECKING:
T = TypeVar('T')
CACHE_SIZE = 1e9 # 1 Gig
_cache = Cache(get_cache_dir(), size_limit=CACHE_SIZE)
def cache_on_disk(func: Callable[..., T]) -> Callable[..., T]:
@wraps(func)
def wrapper(*args, **kwargs):
key = hash_string("".join(map(str, [func.__name__, args, kwargs])))
value = _cache.get(key)
if value is None:
# print(f"Executing {func.__name__}({args[0]}, ...)")
value = func(*args, **kwargs)
_cache.set(key, value)
return value
return wrapper
def clear_cache():
_cache.clear()
@contextmanager
def display_during_execution(message: str):
# Merge into a single line
to_print = message.replace("\n", " ")
max_characters = os.get_terminal_size().columns - 1
if len(to_print) > max_characters:
to_print = to_print[:max_characters - 3] + "..."
try:
print(to_print, end="\r")
yield
finally:
print(" " * len(to_print), end="\r")