move directories and data path

src/iSponsorBlockTV/conditional_ttl_cache.py

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+"""MIT License
+
+Copyright (c) 2020 Rajat Singh
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE."""
+'''Modified code from https://github.com/iamsinghrajat/async-cache'''
+
+from cache.key import KEY
+from cache.lru import LRU
+import datetime
+
+
+class AsyncConditionalTTL:
+    class _TTL(LRU):
+        def __init__(self, time_to_live, maxsize):
+            super().__init__(maxsize=maxsize)
+
+            self.time_to_live = datetime.timedelta(
+                seconds=time_to_live
+            ) if time_to_live else None
+
+            self.maxsize = maxsize
+
+        def __contains__(self, key):
+            if key not in self.keys():
+                return False
+            else:
+                key_expiration = super().__getitem__(key)[1]
+                if key_expiration and key_expiration < datetime.datetime.now():
+                    del self[key]
+                    return False
+                else:
+                    return True
+
+        def __getitem__(self, key):
+            value = super().__getitem__(key)[0]
+            return value
+
+        def __setitem__(self, key, value):
+            value, ignore_ttl = value  # unpack tuple
+            ttl_value = (
+                    datetime.datetime.now() + self.time_to_live
+            ) if (self.time_to_live and not ignore_ttl) else None  # ignore ttl if ignore_ttl is True
+            super().__setitem__(key, (value, ttl_value))
+
+    def __init__(
+            self, time_to_live=60, maxsize=1024, skip_args: int = 0
+    ):
+        """
+
+        :param time_to_live: Use time_to_live as None for non expiring cache
+        :param maxsize: Use maxsize as None for unlimited size cache
+        :param skip_args: Use `1` to skip first arg of func in determining cache key
+        """
+        self.ttl = self._TTL(time_to_live=time_to_live, maxsize=maxsize)
+        self.skip_args = skip_args
+
+    def __call__(self, func):
+        async def wrapper(*args, **kwargs):
+            key = KEY(args[self.skip_args:], kwargs)
+            if key in self.ttl:
+                val = self.ttl[key]
+            else:
+                self.ttl[key] = await func(*args, **kwargs)
+                val = self.ttl[key]
+
+            return val
+
+        wrapper.__name__ += func.__name__
+
+        return wrapper