2020-02-10 08:58:54 +01:00
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# 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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from __future__ import annotations
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2020-02-11 08:30:10 +01:00
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import itertools
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2020-02-10 08:58:54 +01:00
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import time
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from concurrent.futures import Future
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2020-02-11 08:30:10 +01:00
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from typing import Iterable, List, Optional, TypeVar
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2020-02-10 08:58:54 +01:00
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import aqt
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from anki import hooks
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from anki.lang import _, ngettext
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from anki.rsbackend import Interrupted, MediaCheckOutput, Progress, ProgressKind
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from aqt.qt import *
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2020-02-11 06:36:05 +01:00
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from aqt.utils import askUser, restoreGeom, saveGeom, showText, tooltip
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2020-02-10 08:58:54 +01:00
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2020-02-11 08:30:10 +01:00
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T = TypeVar("T")
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def chunked_list(l: Iterable[T], n: int) -> Iterable[List[T]]:
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l = iter(l)
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while True:
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res = list(itertools.islice(l, n))
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if not res:
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return
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yield res
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2020-02-10 08:58:54 +01:00
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def check_media_db(mw: aqt.AnkiQt) -> None:
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c = MediaChecker(mw)
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c.check()
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class MediaChecker:
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progress_dialog: Optional[aqt.progress.ProgressDialog]
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def __init__(self, mw: aqt.AnkiQt) -> None:
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self.mw = mw
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def check(self) -> None:
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self.progress_dialog = self.mw.progress.start()
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hooks.bg_thread_progress_callback.append(self._on_progress)
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self.mw.col.close()
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self.mw.taskman.run_in_background(self._check, self._on_finished)
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def _on_progress(self, proceed: bool, progress: Progress) -> bool:
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if progress.kind != ProgressKind.MediaCheck:
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return proceed
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if self.progress_dialog.wantCancel:
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return False
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2020-02-16 09:46:51 +01:00
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self.mw.taskman.run_on_main(lambda: self.mw.progress.update(progress.val))
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2020-02-10 08:58:54 +01:00
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return True
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def _check(self) -> MediaCheckOutput:
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"Run the check on a background thread."
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return self.mw.col.media.check()
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2020-02-14 07:15:18 +01:00
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def _on_finished(self, future: Future) -> None:
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2020-02-10 08:58:54 +01:00
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hooks.bg_thread_progress_callback.remove(self._on_progress)
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self.mw.progress.finish()
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self.progress_dialog = None
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self.mw.col.reopen()
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exc = future.exception()
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if isinstance(exc, Interrupted):
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return
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2020-02-14 07:15:18 +01:00
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output: MediaCheckOutput = future.result()
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report = output.report
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2020-02-10 08:58:54 +01:00
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# show report and offer to delete
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diag = QDialog(self.mw)
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diag.setWindowTitle("Anki")
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layout = QVBoxLayout(diag)
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diag.setLayout(layout)
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text = QTextEdit()
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text.setReadOnly(True)
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text.setPlainText(report)
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layout.addWidget(text)
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box = QDialogButtonBox(QDialogButtonBox.Close)
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layout.addWidget(box)
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2020-02-11 08:30:10 +01:00
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2020-02-10 08:58:54 +01:00
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if output.unused:
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b = QPushButton(_("Delete Unused Files"))
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b.setAutoDefault(False)
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2020-02-11 08:30:10 +01:00
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box.addButton(b, QDialogButtonBox.RejectRole)
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b.clicked.connect(lambda c: self._on_trash_files(output.unused)) # type: ignore
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2020-02-10 08:58:54 +01:00
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2020-02-11 06:09:33 +01:00
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if output.missing:
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if any(map(lambda x: x.startswith("latex-"), output.missing)):
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b = QPushButton(_("Render LaTeX"))
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b.setAutoDefault(False)
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box.addButton(b, QDialogButtonBox.RejectRole)
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b.clicked.connect(self._on_render_latex) # type: ignore
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2020-02-10 08:58:54 +01:00
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box.rejected.connect(diag.reject) # type: ignore
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diag.setMinimumHeight(400)
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diag.setMinimumWidth(500)
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restoreGeom(diag, "checkmediadb")
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diag.exec_()
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saveGeom(diag, "checkmediadb")
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2020-02-11 06:09:33 +01:00
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def _on_render_latex(self):
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self.progress_dialog = self.mw.progress.start()
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try:
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2020-02-11 06:36:05 +01:00
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out = self.mw.col.media.render_all_latex(self._on_render_latex_progress)
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2020-02-11 07:46:57 +01:00
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if self.progress_dialog.wantCancel:
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return
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2020-02-11 06:09:33 +01:00
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finally:
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self.mw.progress.finish()
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2020-02-11 07:46:57 +01:00
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self.progress_dialog = None
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2020-02-11 06:36:05 +01:00
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if out is not None:
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nid, err = out
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browser = aqt.dialogs.open("Browser", self.mw)
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browser.form.searchEdit.lineEdit().setText("nid:%d" % nid)
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browser.onSearchActivated()
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showText(err, type="html")
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else:
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tooltip(_("All LaTeX rendered."))
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2020-02-11 06:09:33 +01:00
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def _on_render_latex_progress(self, count: int) -> bool:
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if self.progress_dialog.wantCancel:
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return False
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self.mw.progress.update(_("Checked {}...").format(count))
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return True
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2020-02-11 08:30:10 +01:00
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def _on_trash_files(self, fnames: List[str]):
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if not askUser(_("Delete unused media?")):
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return
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self.progress_dialog = self.mw.progress.start()
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last_progress = time.time()
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remaining = len(fnames)
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try:
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for chunk in chunked_list(fnames, 25):
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self.mw.col.media.trash_files(chunk)
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remaining -= len(chunk)
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if time.time() - last_progress >= 0.3:
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label = (
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ngettext(
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"%d file remaining...", "%d files remaining...", remaining,
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)
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% remaining
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)
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self.mw.progress.update(label)
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finally:
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self.mw.progress.finish()
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self.progress_dialog = None
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tooltip(_("Files moved to trash."))
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