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Merge branch 'master' of https://github.com/cbhaley/calibre

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Fixes #1238887 [Smart Device Control failes with Errno 2 No such file or directory:  <path>\\AppData\\Local\\calibre-cache\\device_drivers_SMART_DEVICE_APP_metadata_cache.json'](https://bugs.launchpad.net/calibre/+bug/1238887)
This commit is contained in:
Kovid Goyal 2013-10-11 23:21:15 +05:30
commit 424b9e1884
1 changed files with 21 additions and 20 deletions
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41
src/calibre/devices/smart_device_app/driver.py
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@ -730,27 +730,28 @@ class SMART_DEVICE_APP(DeviceConfig, DevicePlugin):
'_metadata_cache.json') '_metadata_cache.json')
self.known_uuids = defaultdict(dict) self.known_uuids = defaultdict(dict)
self.known_metadata = {} self.known_metadata = {}
with open(cache_file_name, mode='rb') as fd: if os.path.exists(cache_file_name):
try: with open(cache_file_name, mode='rb') as fd:
while True: try:
rec_len = fd.readline() while True:
if len(rec_len) != 8: rec_len = fd.readline()
break if len(rec_len) != 8:
raw = fd.read(int(rec_len)) break
book = json.loads(raw.decode('utf-8'), object_hook=from_json) raw = fd.read(int(rec_len))
uuid = book.keys()[0] book = json.loads(raw.decode('utf-8'), object_hook=from_json)
metadata = self.json_codec.raw_to_book(book[uuid]['book'], uuid = book.keys()[0]
SDBook, self.PREFIX) metadata = self.json_codec.raw_to_book(book[uuid]['book'],
book[uuid]['book'] = metadata SDBook, self.PREFIX)
self.known_uuids.update(book) book[uuid]['book'] = metadata
self.known_uuids.update(book)
lpath = metadata.get('lpath') lpath = metadata.get('lpath')
if lpath in self.known_metadata: if lpath in self.known_metadata:
self.known_uuids.pop(uuid, None) self.known_uuids.pop(uuid, None)
else: else:
self.known_metadata[lpath] = metadata self.known_metadata[lpath] = metadata
except: except:
traceback.print_exc() traceback.print_exc()
def _write_metadata_cache(self): def _write_metadata_cache(self):
from calibre.utils.config import to_json from calibre.utils.config import to_json