1824ca1b5d
If we fail to open the Anki 2.0 prefs.db file, on the second try we need to revert to a new file instead of trying the same broken file again.
494 lines
15 KiB
Python
494 lines
15 KiB
Python
# Copyright: Ankitects Pty Ltd and contributors
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# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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# Profile handling
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##########################################################################
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# - Saves in pickles rather than json to easily store Qt window state.
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# - Saves in sqlite rather than a flat file so the config can't be corrupted
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import io
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import locale
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import pickle
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import random
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import shutil
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from typing import Any, Dict
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from send2trash import send2trash
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import anki.lang
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import aqt.forms
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import aqt.sound
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from anki.db import DB
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from anki.lang import _
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from anki.utils import intTime, isMac, isWin
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from aqt import appHelpSite
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from aqt.qt import *
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from aqt.utils import locale_dir, showWarning
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metaConf = dict(
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ver=0,
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updates=True,
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created=intTime(),
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id=random.randrange(0, 2 ** 63),
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lastMsg=-1,
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suppressUpdate=False,
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firstRun=True,
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defaultLang=None,
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disabledAddons=[],
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)
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profileConf: Dict[str, Any] = dict(
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# profile
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mainWindowGeom=None,
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mainWindowState=None,
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numBackups=50,
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lastOptimize=intTime(),
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# editing
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fullSearch=False,
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searchHistory=[],
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lastColour="#00f",
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stripHTML=True,
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pastePNG=False,
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# not exposed in gui
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deleteMedia=False,
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preserveKeyboard=True,
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# syncing
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syncKey=None,
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syncMedia=True,
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autoSync=True,
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# importing
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allowHTML=False,
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importMode=1,
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)
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class LoadMetaResult:
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firstTime: bool
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loadError: bool
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class ProfileManager:
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def __init__(self, base=None):
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self.name = None
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self.db = None
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# instantiate base folder
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self._setBaseFolder(base)
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aqt.sound.setMpvConfigBase(self.base)
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def setupMeta(self) -> LoadMetaResult:
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# load metadata
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res = self._loadMeta()
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self.firstRun = res.firstTime
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return res
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# profile load on startup
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def openProfile(self, profile):
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if profile:
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if profile not in self.profiles():
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QMessageBox.critical(None, "Error", "Requested profile does not exist.")
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sys.exit(1)
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try:
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self.load(profile)
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except TypeError:
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raise Exception("Provided profile does not exist.")
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# Base creation
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######################################################################
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def ensureBaseExists(self):
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self._ensureExists(self.base)
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# Folder migration
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######################################################################
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def _oldFolderLocation(self):
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if isMac:
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return os.path.expanduser("~/Documents/Anki")
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elif isWin:
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from aqt.winpaths import get_personal
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return os.path.join(get_personal(), "Anki")
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else:
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p = os.path.expanduser("~/Anki")
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if os.path.isdir(p):
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return p
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return os.path.expanduser("~/Documents/Anki")
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def maybeMigrateFolder(self):
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oldBase = self._oldFolderLocation()
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if oldBase and not os.path.exists(self.base) and os.path.isdir(oldBase):
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shutil.move(oldBase, self.base)
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# Profile load/save
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######################################################################
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def profiles(self):
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def names():
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return self.db.list("select name from profiles where name != '_global'")
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n = names()
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if not n:
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self._ensureProfile()
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n = names()
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return n
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def _unpickle(self, data):
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class Unpickler(pickle.Unpickler):
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def find_class(self, module, name):
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if module == "PyQt5.sip":
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try:
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import PyQt5.sip # type: ignore # pylint: disable=unused-import
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except:
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# use old sip location
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module = "sip"
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fn = super().find_class(module, name)
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if module == "sip" and name == "_unpickle_type":
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def wrapper(mod, obj, args):
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if mod.startswith("PyQt4") and obj == "QByteArray":
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# can't trust str objects from python 2
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return QByteArray()
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return fn(mod, obj, args)
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return wrapper
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else:
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return fn
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up = Unpickler(io.BytesIO(data), errors="ignore")
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return up.load()
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def _pickle(self, obj):
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return pickle.dumps(obj, protocol=0)
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def load(self, name):
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assert name != "_global"
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data = self.db.scalar(
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"select cast(data as blob) from profiles where name = ?", name
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)
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self.name = name
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try:
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self.profile = self._unpickle(data)
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except:
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QMessageBox.warning(
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None,
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_("Profile Corrupt"),
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_(
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"""\
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Anki could not read your profile data. Window sizes and your sync login \
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details have been forgotten."""
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),
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)
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print("resetting corrupt profile")
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self.profile = profileConf.copy()
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self.save()
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return True
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def save(self):
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sql = "update profiles set data = ? where name = ?"
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self.db.execute(sql, self._pickle(self.profile), self.name)
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self.db.execute(sql, self._pickle(self.meta), "_global")
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self.db.commit()
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def create(self, name):
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prof = profileConf.copy()
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self.db.execute(
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"insert or ignore into profiles values (?, ?)", name, self._pickle(prof)
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)
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self.db.commit()
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def remove(self, name):
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p = self.profileFolder()
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if os.path.exists(p):
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send2trash(p)
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self.db.execute("delete from profiles where name = ?", name)
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self.db.commit()
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def trashCollection(self):
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p = self.collectionPath()
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if os.path.exists(p):
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send2trash(p)
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def rename(self, name):
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oldName = self.name
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oldFolder = self.profileFolder()
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self.name = name
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newFolder = self.profileFolder(create=False)
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if os.path.exists(newFolder):
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if (oldFolder != newFolder) and (oldFolder.lower() == newFolder.lower()):
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# OS is telling us the folder exists because it does not take
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# case into account; use a temporary folder location
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midFolder = "".join([oldFolder, "-temp"])
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if not os.path.exists(midFolder):
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os.rename(oldFolder, midFolder)
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oldFolder = midFolder
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else:
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showWarning(
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_("Please remove the folder %s and try again.") % midFolder
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)
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self.name = oldName
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return
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else:
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showWarning(_("Folder already exists."))
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self.name = oldName
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return
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# update name
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self.db.execute("update profiles set name = ? where name = ?", name, oldName)
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# rename folder
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try:
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os.rename(oldFolder, newFolder)
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except Exception as e:
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self.db.rollback()
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if "WinError 5" in str(e):
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showWarning(
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_(
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"""\
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Anki could not rename your profile because it could not rename the profile \
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folder on disk. Please ensure you have permission to write to Documents/Anki \
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and no other programs are accessing your profile folders, then try again."""
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)
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)
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else:
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raise
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except:
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self.db.rollback()
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raise
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else:
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self.db.commit()
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# Folder handling
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######################################################################
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def profileFolder(self, create=True):
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path = os.path.join(self.base, self.name)
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if create:
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self._ensureExists(path)
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return path
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def addonFolder(self):
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return self._ensureExists(os.path.join(self.base, "addons21"))
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def backupFolder(self):
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return self._ensureExists(os.path.join(self.profileFolder(), "backups"))
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def collectionPath(self):
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return os.path.join(self.profileFolder(), "collection.anki2")
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# Helpers
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######################################################################
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def _ensureExists(self, path):
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if not os.path.exists(path):
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os.makedirs(path)
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return path
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def _setBaseFolder(self, cmdlineBase):
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if cmdlineBase:
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self.base = os.path.abspath(cmdlineBase)
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elif os.environ.get("ANKI_BASE"):
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self.base = os.path.abspath(os.environ["ANKI_BASE"])
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else:
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self.base = self._defaultBase()
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self.maybeMigrateFolder()
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self.ensureBaseExists()
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def _defaultBase(self):
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if isWin:
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from aqt.winpaths import get_appdata
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return os.path.join(get_appdata(), "Anki2")
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elif isMac:
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return os.path.expanduser("~/Library/Application Support/Anki2")
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else:
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dataDir = os.environ.get(
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"XDG_DATA_HOME", os.path.expanduser("~/.local/share")
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)
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if not os.path.exists(dataDir):
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os.makedirs(dataDir)
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return os.path.join(dataDir, "Anki2")
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def _loadMeta(self, retrying=False) -> LoadMetaResult:
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result = LoadMetaResult()
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result.firstTime = False
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result.loadError = retrying
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opath = os.path.join(self.base, "prefs.db")
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path = os.path.join(self.base, "prefs21.db")
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if not retrying and os.path.exists(opath) and not os.path.exists(path):
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shutil.copy(opath, path)
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result.firstTime = not os.path.exists(path)
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def recover():
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# if we can't load profile, start with a new one
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if self.db:
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try:
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self.db.close()
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except:
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pass
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for suffix in ("", "-journal"):
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fpath = path + suffix
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if os.path.exists(fpath):
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os.unlink(fpath)
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# open DB file and read data
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try:
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self.db = DB(path)
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assert self.db.scalar("pragma integrity_check") == "ok"
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self.db.execute(
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"""
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create table if not exists profiles
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(name text primary key, data text not null);"""
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)
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data = self.db.scalar(
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"select cast(data as blob) from profiles where name = '_global'"
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)
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except:
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if result.loadError:
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# already failed, prevent infinite loop
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raise
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# delete files and try again
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recover()
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return self._loadMeta(retrying=True)
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# try to read data
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if not result.firstTime:
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try:
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self.meta = self._unpickle(data)
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return result
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except:
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print("resetting corrupt _global")
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result.loadError = True
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# if new or read failed, create a default global profile
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self.meta = metaConf.copy()
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self.db.execute(
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"insert or replace into profiles values ('_global', ?)",
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self._pickle(metaConf),
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)
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return result
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def _ensureProfile(self):
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"Create a new profile if none exists."
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self.create(_("User 1"))
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p = os.path.join(self.base, "README.txt")
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open(p, "w", encoding="utf8").write(
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_(
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"""\
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This folder stores all of your Anki data in a single location,
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to make backups easy. To tell Anki to use a different location,
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please see:
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%s
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"""
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)
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% (appHelpSite + "#startupopts")
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)
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# Default language
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######################################################################
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# On first run, allow the user to choose the default language
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def setDefaultLang(self):
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# create dialog
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class NoCloseDiag(QDialog):
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def reject(self):
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pass
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d = self.langDiag = NoCloseDiag()
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f = self.langForm = aqt.forms.setlang.Ui_Dialog()
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f.setupUi(d)
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d.accepted.connect(self._onLangSelected)
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d.rejected.connect(lambda: True)
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# default to the system language
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try:
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(lang, enc) = locale.getdefaultlocale()
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except:
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# fails on osx
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lang = "en_US"
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# find index
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idx = None
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en = None
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for c, (name, code) in enumerate(anki.lang.langs):
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if code == "en_US":
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en = c
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if code == lang:
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idx = c
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# if the system language isn't available, revert to english
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if idx is None:
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idx = en
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# update list
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f.lang.addItems([x[0] for x in anki.lang.langs])
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f.lang.setCurrentRow(idx)
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d.exec_()
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def _onLangSelected(self):
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f = self.langForm
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obj = anki.lang.langs[f.lang.currentRow()]
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code = obj[1]
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name = obj[0]
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en = "Are you sure you wish to display Anki's interface in %s?"
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r = QMessageBox.question(
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None, "Anki", en % name, QMessageBox.Yes | QMessageBox.No, QMessageBox.No
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)
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if r != QMessageBox.Yes:
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return self.setDefaultLang()
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self.setLang(code)
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def setLang(self, code):
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self.meta["defaultLang"] = code
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sql = "update profiles set data = ? where name = ?"
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self.db.execute(sql, self._pickle(self.meta), "_global")
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self.db.commit()
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anki.lang.setLang(code, locale_dir(), local=False)
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# OpenGL
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######################################################################
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def _glPath(self):
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return os.path.join(self.base, "gldriver")
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def glMode(self):
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if isMac:
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return "auto"
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path = self._glPath()
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if not os.path.exists(path):
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return "software"
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mode = open(path, "r").read().strip()
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if mode == "angle" and isWin:
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return mode
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elif mode == "software":
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return mode
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return "auto"
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def setGlMode(self, mode):
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open(self._glPath(), "w").write(mode)
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def nextGlMode(self):
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mode = self.glMode()
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if mode == "software":
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self.setGlMode("auto")
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elif mode == "auto":
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if isWin:
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self.setGlMode("angle")
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else:
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self.setGlMode("software")
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elif mode == "angle":
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self.setGlMode("software")
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# Scale
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######################################################################
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def uiScale(self) -> float:
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return self.meta.get("uiScale", 1.0)
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def setUiScale(self, scale: float) -> None:
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self.meta["uiScale"] = scale
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