diff options
Diffstat (limited to 'qutebrowser/misc/backendproblem.py')
| -rw-r--r-- | qutebrowser/misc/backendproblem.py | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/qutebrowser/misc/backendproblem.py b/qutebrowser/misc/backendproblem.py index da9392f3d..796d97fea 100644 --- a/qutebrowser/misc/backendproblem.py +++ b/qutebrowser/misc/backendproblem.py @@ -26,6 +26,7 @@ import html import ctypes import ctypes.util import enum +import shutil import attr from PyQt5.QtCore import Qt @@ -33,8 +34,9 @@ from PyQt5.QtWidgets import (QApplication, QDialog, QPushButton, QHBoxLayout, QVBoxLayout, QLabel, QMessageBox) from PyQt5.QtNetwork import QSslSocket -from qutebrowser.config import config -from qutebrowser.utils import usertypes, objreg, version, qtutils, log, utils +from qutebrowser.config import config, configfiles +from qutebrowser.utils import (usertypes, objreg, version, qtutils, log, utils, + standarddir) from qutebrowser.misc import objects, msgbox @@ -397,6 +399,29 @@ def _check_backend_modules(): raise utils.Unreachable +def _handle_cache_nuking(): + """Nuke the QtWebEngine cache if the Qt version changed. + + WORKAROUND for https://bugreports.qt.io/browse/QTBUG-72532 + """ + if not configfiles.state.qt_version_changed: + return + + # Only nuke the cache in cases where we know there are problems. + # It seems these issues started with Qt 5.12. + # They should be fixed with Qt 5.12.5: + # https://codereview.qt-project.org/c/qt/qtwebengine-chromium/+/265408 + affected = (qtutils.version_check('5.12', compiled=False) and not + qtutils.version_check('5.12.5', compiled=False)) + if not affected: + return + + log.init.info("Qt version changed, nuking QtWebEngine cache") + cache_dir = os.path.join(standarddir.cache(), 'webengine') + if os.path.exists(cache_dir): + shutil.rmtree(cache_dir) + + def init(): """Check for various issues related to QtWebKit/QtWebEngine.""" _check_backend_modules() @@ -405,6 +430,7 @@ def init(): _handle_wayland() _nvidia_shader_workaround() _handle_nouveau_graphics() + _handle_cache_nuking() else: assert objects.backend == usertypes.Backend.QtWebKit, objects.backend _handle_ssl_support(fatal=True) |