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When restoring a db on windows if renaming the old db fails because some other process has locked the file, wait a little and try again

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This commit is contained in:
Kovid Goyal 2014-03-23 11:58:41 +05:30
parent 1fa5a5af1a
commit c2246fdd5a
1 changed files with 9 additions and 2 deletions
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11
src/calibre/db/restore.py
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@ -5,7 +5,7 @@ __license__ = 'GPL v3'
__copyright__ = '2010, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
import re, os, traceback, shutil
import re, os, traceback, shutil, time
from threading import Thread
from operator import itemgetter
@ -269,7 +269,14 @@ class Restore(Thread):
save_path = self.olddb = os.path.splitext(dbpath)[0]+'_pre_restore.db'
if os.path.exists(save_path):
os.remove(save_path)
os.rename(dbpath, save_path)
try:
os.rename(dbpath, save_path)
except OSError as err:
if getattr(err, 'winerror', None) == 32: # ERROR_SHARING_VIOLATION
time.sleep(4) # Wait a little for dropbox or the antivirus or whatever to release the file
os.rename(dbpath, save_path)
else:
raise
shutil.copyfile(ndbpath, dbpath)