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# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
# Copyright 2014-2021 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
#
# This file is part of qutebrowser.
#
# qutebrowser is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# qutebrowser is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with qutebrowser. If not, see <https://www.gnu.org/licenses/>.
"""HTTP network cache."""
from typing import cast
import os.path
from qutebrowser.qt.network import QNetworkDiskCache
from qutebrowser.config import config
from qutebrowser.utils import utils, standarddir
diskcache = cast('DiskCache', None)
class DiskCache(QNetworkDiskCache):
"""Disk cache which sets correct cache dir and size."""
def __init__(self, cache_dir, parent=None):
super().__init__(parent)
self.setCacheDirectory(os.path.join(cache_dir, 'http'))
self._set_cache_size()
config.instance.changed.connect(self._set_cache_size)
def __repr__(self):
return utils.get_repr(self, size=self.cacheSize(),
maxsize=self.maximumCacheSize(),
path=self.cacheDirectory())
@config.change_filter('content.cache.size')
def _set_cache_size(self):
"""Set the cache size based on the config."""
size = config.val.content.cache.size
if size is None:
size = 1024 * 1024 * 50 # default from QNetworkDiskCachePrivate
self.setMaximumCacheSize(size)
def init(parent):
"""Initialize the global cache."""
global diskcache
diskcache = DiskCache(standarddir.cache(), parent=parent)
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