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restore media dir mod check

Browse source 
https://anki.tenderapp.com/discussions/beta-testing/853-anki-210-beta-21/page/1#comment_44071381
This commit is contained in:
Damien Elmes 2017-11-20 14:22:53 +10:00
parent 8c5abe3a13
commit 5ee1ee0450
1 changed files with 24 additions and 1 deletions
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25
anki/media.py
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@ -121,6 +121,18 @@ create table meta (dirMod int, lastUsn int); insert into meta values (0, 0);
def dir(self): def dir(self):
return self._dir return self._dir
def _isFAT32(self):
if not isWin:
return
import win32api, win32file
try:
name = win32file.GetVolumeNameForVolumeMountPoint(self._dir[:3])
except:
# mapped & unmapped network drive; pray that it's not vfat
return
if win32api.GetVolumeInformation(name)[4].lower().startswith("fat"):
return True
# Adding media # Adding media
########################################################################## ##########################################################################
# opath must be in unicode # opath must be in unicode
@ -353,7 +365,8 @@ create table meta (dirMod int, lastUsn int); insert into meta values (0, 0);
def findChanges(self): def findChanges(self):
"Scan the media folder if it's changed, and note any changes." "Scan the media folder if it's changed, and note any changes."
self._logChanges() if self._changed():
self._logChanges()
def haveDirty(self): def haveDirty(self):
return self.db.scalar("select 1 from media where dirty=1 limit 1") return self.db.scalar("select 1 from media where dirty=1 limit 1")
@ -364,6 +377,15 @@ create table meta (dirMod int, lastUsn int); insert into meta values (0, 0);
def _checksum(self, path): def _checksum(self, path):
return checksum(open(path, "rb").read()) return checksum(open(path, "rb").read())
def _changed(self):
"Return dir mtime if it has changed since the last findChanges()"
# doesn't track edits, but user can add or remove a file to update
mod = self.db.scalar("select dirMod from meta")
mtime = self._mtime(self.dir())
if not self._isFAT32() and mod and mod == mtime:
return False
return mtime
def _logChanges(self): def _logChanges(self):
(added, removed) = self._changes() (added, removed) = self._changes()
media = [] media = []
@ -374,6 +396,7 @@ create table meta (dirMod int, lastUsn int); insert into meta values (0, 0);
# update media db # update media db
self.db.executemany("insert or replace into media values (?,?,?,?)", self.db.executemany("insert or replace into media values (?,?,?,?)",
media) media)
self.db.execute("update meta set dirMod = ?", self._mtime(self.dir()))
self.db.commit() self.db.commit()
def _changes(self): def _changes(self):