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Catalog generation: Handle a corrupted thumbnail cache.

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This commit is contained in:
Kovid Goyal 2011-10-01 10:59:22 -06:00
parent 26e227eb86
commit 04409eb4bd
1 changed files with 9 additions and 5 deletions
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14
src/calibre/library/catalog.py
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@ -1059,11 +1059,15 @@ class EPUB_MOBI(CatalogPlugin):
with ZipFile(self.__archive_path, mode='w') as zfw:
zfw.writestr("Catalog Thumbs Archive",'')
else:
with ZipFile(self.__archive_path, mode='r') as zfr:
try:
cached_thumb_width = zfr.read('thumb_width')
except:
cached_thumb_width = "-1"
try:
with ZipFile(self.__archive_path, mode='r') as zfr:
try:
cached_thumb_width = zfr.read('thumb_width')
except:
cached_thumb_width = "-1"
except:
os.remove(self.__archive_path)
cached_thumb_width = '-1'
if float(cached_thumb_width) != float(self.opts.thumb_width):
self.opts.log.warning(" invalidating cache at '%s'" % self.__archive_path)