Anki/pylib/anki/importing/apkg.py
Damien Elmes b9251290ca run pyupgrade over codebase [python upgrade required]
This adds Python 3.9 and 3.10 typing syntax to files that import
attributions from __future___. Python 3.9 should be able to cope with
the 3.10 syntax, but Python 3.8 will no longer work.

On Windows/Mac, install the latest Python 3.9 version from python.org.
There are currently no orjson wheels for Python 3.10 on Windows/Mac,
which will break the build unless you have Rust installed separately.

On Linux, modern distros should have Python 3.9 available already. If
you're on an older distro, you'll need to build Python from source first.
2021-10-04 15:05:48 +10:00

61 lines
2 KiB
Python

# Copyright: Ankitects Pty Ltd and contributors
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
# pylint: disable=invalid-name
import json
import os
import unicodedata
import zipfile
from typing import Any, Optional
from anki.importing.anki2 import Anki2Importer
from anki.utils import tmpfile
class AnkiPackageImporter(Anki2Importer):
nameToNum: dict[str, str]
zip: Optional[zipfile.ZipFile]
def run(self) -> None: # type: ignore
# extract the deck from the zip file
self.zip = z = zipfile.ZipFile(self.file)
# v2 scheduler?
try:
z.getinfo("collection.anki21")
suffix = ".anki21"
except KeyError:
suffix = ".anki2"
col = z.read(f"collection{suffix}")
colpath = tmpfile(suffix=".anki2")
with open(colpath, "wb") as f:
f.write(col)
self.file = colpath
# we need the media dict in advance, and we'll need a map of fname ->
# number to use during the import
self.nameToNum = {}
dir = self.col.media.dir()
for k, v in list(json.loads(z.read("media").decode("utf8")).items()):
path = os.path.abspath(os.path.join(dir, v))
if os.path.commonprefix([path, dir]) != dir:
raise Exception("Invalid file")
self.nameToNum[unicodedata.normalize("NFC", v)] = k
# run anki2 importer
Anki2Importer.run(self, importing_v2=suffix == ".anki21")
# import static media
for file, c in list(self.nameToNum.items()):
if not file.startswith("_") and not file.startswith("latex-"):
continue
path = os.path.join(self.col.media.dir(), file)
if not os.path.exists(path):
with open(path, "wb") as f:
f.write(z.read(c))
def _srcMediaData(self, fname: str) -> Any:
if fname in self.nameToNum:
return self.zip.read(
self.nameToNum[fname]
) # pytype: disable=attribute-error
return None