anki/anki/exporting.py
2016-09-02 14:27:24 +03:00

324 lines
10 KiB
Python

# -*- coding: utf-8 -*-
# Copyright: Damien Elmes <anki@ichi2.net>
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
import re, os, zipfile, shutil
from anki.lang import _
from anki.utils import ids2str, splitFields, json
from anki.hooks import runHook
from anki import Collection
class Exporter(object):
def __init__(self, col, did=None):
self.col = col
self.did = did
def exportInto(self, path):
self._escapeCount = 0
file = open(path, "wb")
self.doExport(file)
file.close()
def escapeText(self, text):
"Escape newlines, tabs, CSS and quotechar."
# fixme: we should probably quote fields with newlines
# instead of converting them to spaces
text = text.replace("\n", " ")
text = text.replace("\t", " " * 8)
text = re.sub("(?i)<style>.*?</style>", "", text)
if "\"" in text:
text = "\"" + text.replace("\"", "\"\"") + "\""
return text
def cardIds(self):
if not self.did:
cids = self.col.db.list("select id from cards")
else:
cids = self.col.decks.cids(self.did, children=True)
self.count = len(cids)
return cids
# Cards as TSV
######################################################################
class TextCardExporter(Exporter):
key = _("Cards in Plain Text")
ext = ".txt"
hideTags = True
def __init__(self, col):
Exporter.__init__(self, col)
def doExport(self, file):
ids = sorted(self.cardIds())
strids = ids2str(ids)
def esc(s):
# strip off the repeated question in answer if exists
s = re.sub("(?si)^.*<hr id=answer>\n*", "", s)
return self.escapeText(s)
out = ""
for cid in ids:
c = self.col.getCard(cid)
out += esc(c.q())
out += "\t" + esc(c.a()) + "\n"
file.write(out.encode("utf-8"))
# Notes as TSV
######################################################################
class TextNoteExporter(Exporter):
key = _("Notes in Plain Text")
ext = ".txt"
def __init__(self, col):
Exporter.__init__(self, col)
self.includeID = False
self.includeTags = True
def doExport(self, file):
cardIds = self.cardIds()
data = []
for id, flds, tags in self.col.db.execute("""
select guid, flds, tags from notes
where id in
(select nid from cards
where cards.id in %s)""" % ids2str(cardIds)):
row = []
# note id
if self.includeID:
row.append(str(id))
# fields
row.extend([self.escapeText(f) for f in splitFields(flds)])
# tags
if self.includeTags:
row.append(tags.strip())
data.append("\t".join(row))
self.count = len(data)
out = "\n".join(data)
file.write(out.encode("utf-8"))
# Anki decks
######################################################################
# media files are stored in self.mediaFiles, but not exported.
class AnkiExporter(Exporter):
key = _("Anki 2.0 Deck")
ext = ".anki2"
def __init__(self, col):
Exporter.__init__(self, col)
self.includeSched = False
self.includeMedia = True
def exportInto(self, path):
# create a new collection at the target
try:
os.unlink(path)
except (IOError, OSError):
pass
self.dst = Collection(path)
self.src = self.col
# find cards
if not self.did:
cids = self.src.db.list("select id from cards")
else:
cids = self.src.decks.cids(self.did, children=True)
# copy cards, noting used nids
nids = {}
data = []
for row in self.src.db.execute(
"select * from cards where id in "+ids2str(cids)):
nids[row[1]] = True
data.append(row)
self.dst.db.executemany(
"insert into cards values (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)",
data)
# notes
strnids = ids2str(list(nids.keys()))
notedata = []
for row in self.src.db.all(
"select * from notes where id in "+strnids):
# remove system tags if not exporting scheduling info
if not self.includeSched:
row = list(row)
row[5] = self.removeSystemTags(row[5])
notedata.append(row)
self.dst.db.executemany(
"insert into notes values (?,?,?,?,?,?,?,?,?,?,?)",
notedata)
# models used by the notes
mids = self.dst.db.list("select distinct mid from notes where id in "+
strnids)
# card history and revlog
if self.includeSched:
data = self.src.db.all(
"select * from revlog where cid in "+ids2str(cids))
self.dst.db.executemany(
"insert into revlog values (?,?,?,?,?,?,?,?,?)",
data)
else:
# need to reset card state
self.dst.sched.resetCards(cids)
# models - start with zero
self.dst.models.models = {}
for m in self.src.models.all():
if int(m['id']) in mids:
self.dst.models.update(m)
# decks
if not self.did:
dids = []
else:
dids = [self.did] + [
x[1] for x in self.src.decks.children(self.did)]
dconfs = {}
for d in self.src.decks.all():
if str(d['id']) == "1":
continue
if dids and d['id'] not in dids:
continue
if not d['dyn'] and d['conf'] != 1:
if self.includeSched:
dconfs[d['conf']] = True
if not self.includeSched:
# scheduling not included, so reset deck settings to default
d = dict(d)
d['conf'] = 1
self.dst.decks.update(d)
# copy used deck confs
for dc in self.src.decks.allConf():
if dc['id'] in dconfs:
self.dst.decks.updateConf(dc)
# find used media
media = {}
self.mediaDir = self.src.media.dir()
if self.includeMedia:
for row in notedata:
flds = row[6]
mid = row[2]
for file in self.src.media.filesInStr(mid, flds):
media[file] = True
if self.mediaDir:
for fname in os.listdir(self.mediaDir):
if fname.startswith("_"):
# Scan all models in mids for reference to fname
for m in self.src.models.all():
if int(m['id']) in mids:
if self._modelHasMedia(m, fname):
media[fname] = True
break
self.mediaFiles = list(media.keys())
self.dst.crt = self.src.crt
# todo: tags?
self.count = self.dst.cardCount()
self.dst.setMod()
self.postExport()
self.dst.close()
def postExport(self):
# overwrite to apply customizations to the deck before it's closed,
# such as update the deck description
pass
def removeSystemTags(self, tags):
return self.src.tags.remFromStr("marked leech", tags)
def _modelHasMedia(self, model, fname):
# First check the styling
if fname in model["css"]:
return True
# If no reference to fname then check the templates as well
for t in model["tmpls"]:
if fname in t["qfmt"] or fname in t["afmt"]:
return True
return False
# Packaged Anki decks
######################################################################
class AnkiPackageExporter(AnkiExporter):
key = _("Anki Deck Package")
ext = ".apkg"
def __init__(self, col):
AnkiExporter.__init__(self, col)
def exportInto(self, path):
# open a zip file
z = zipfile.ZipFile(path, "w", zipfile.ZIP_DEFLATED, allowZip64=True)
# if all decks and scheduling included, full export
if self.includeSched and not self.did:
media = self.exportVerbatim(z)
else:
# otherwise, filter
media = self.exportFiltered(z, path)
# media map
z.writestr("media", json.dumps(media))
z.close()
def exportFiltered(self, z, path):
# export into the anki2 file
colfile = path.replace(".apkg", ".anki2")
AnkiExporter.exportInto(self, colfile)
z.write(colfile, "collection.anki2")
# and media
self.prepareMedia()
media = self._exportMedia(z, self.mediaFiles, self.mediaDir)
# tidy up intermediate files
os.unlink(colfile)
p = path.replace(".apkg", ".media.db2")
if os.path.exists(p):
os.unlink(p)
os.chdir(self.mediaDir)
shutil.rmtree(path.replace(".apkg", ".media"))
return media
def exportVerbatim(self, z):
# close our deck & write it into the zip file, and reopen
self.count = self.col.cardCount()
self.col.close()
z.write(self.col.path, "collection.anki2")
self.col.reopen()
# copy all media
if not self.includeMedia:
return {}
mdir = self.col.media.dir()
return self._exportMedia(z, os.listdir(mdir), mdir)
def _exportMedia(self, z, files, fdir):
media = {}
for c, file in enumerate(files):
cStr = str(c)
mpath = os.path.join(fdir, file)
if os.path.exists(mpath):
if re.search('\.svg$', file, re.IGNORECASE):
z.write(mpath, cStr, zipfile.ZIP_DEFLATED)
else:
z.write(mpath, cStr, zipfile.ZIP_STORED)
media[cStr] = file
runHook("exportedMediaFiles", c)
return media
def prepareMedia(self):
# chance to move each file in self.mediaFiles into place before media
# is zipped up
pass
# Export modules
##########################################################################
def exporters():
def id(obj):
return ("%s (*%s)" % (obj.key, obj.ext), obj)
exps = [
id(AnkiPackageExporter),
id(TextNoteExporter),
id(TextCardExporter),
]
runHook("exportersList", exps)
return exps