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don't clobber original deck if failure in sync

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This commit is contained in:
Damien Elmes 2009-06-02 15:41:30 +09:00
parent d35ef18889
commit 4b883e2c16
1 changed files with 9 additions and 4 deletions
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13
anki/sync.py
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@ -999,19 +999,24 @@ and cards.id in %s""" % ids2str([c[0] for c in cards])))
runHook("fullSyncStarted", 0) runHook("fullSyncStarted", 0)
fields = urllib.urlencode(fields) fields = urllib.urlencode(fields)
src = urllib.urlopen(SYNC_URL + "fulldown", fields) src = urllib.urlopen(SYNC_URL + "fulldown", fields)
dst = open(path, "wb") (fd, tmpname) = tempfile.mkstemp(dir=os.path.dirname(path),
prefix="fullsync")
tmp = open(tmpname, "wb")
decomp = zlib.decompressobj() decomp = zlib.decompressobj()
cnt = 0 cnt = 0
while 1: while 1:
data = src.read(65536) data = src.read(65536)
if not data: if not data:
dst.write(decomp.flush()) tmp.write(decomp.flush())
break break
dst.write(decomp.decompress(data)) tmp.write(decomp.decompress(data))
cnt += 65536 cnt += 65536
runHook("fullSyncProgress", "fromServer", cnt) runHook("fullSyncProgress", "fromServer", cnt)
src.close() src.close()
dst.close() tmp.close()
# if we were successful, overwrite old deck
os.unlink(path)
os.rename(tmpname, path)
finally: finally:
runHook("fullSyncFinished") runHook("fullSyncFinished")