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E-book viewer: Fix some links not being processed correctly for very large EPUB files with many internal HTML files.

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Kovid Goyal 2025-05-04 13:12:46 +05:30
parent 8c06e89aaf
commit 3fd1bc2df7
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1 changed files with 8 additions and 2 deletions
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10
src/calibre/ebooks/oeb/polish/container.py
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@ -548,10 +548,16 @@ class Container(ContainerBase): # {{{
return name and name in self.name_path_map
def has_name_and_is_not_empty(self, name):
if not self.has_name(name):
path = self.name_path_map.get(name)
if not path:
return False
try:
return os.path.getsize(self.name_path_map[name]) > 0
if (sz := os.path.getsize(path)) == 0:
# this can happen when the directory entry is not flushed (which happens during fast EPUB extraction), so
# open the file and check to be sure.
with open(path) as f:
sz = f.seek(0, os.SEEK_END)
return sz > 0
except OSError:
return False