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Avoid compiling filename sanitization regex during application startup

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Since the regex module uses an internal cache there should be no
significant performance impact when sending files.
This commit is contained in:
Kovid Goyal
2015-08-13 18:37:55 +05:30
parent 04a7fee292
commit 66b908552e
1 changed files with 2 additions and 3 deletions
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src/calibre/devices/kobo/driver.py
+2 -3
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@@ -144,8 +144,6 @@ class KOBO(USBMS):
OPT_SHOW_PREVIEWS = 4
OPT_SHOW_RECOMMENDATIONS = 5
OPT_SUPPORT_NEWER_FIRMWARE = 6
invalid_filename_chars_re = re.compile(r'[\/\\\?%\*:;\|\"\'><\$!]', re.IGNORECASE | re.UNICODE)
def initialize(self):
USBMS.initialize(self)
@@ -155,7 +153,8 @@ class KOBO(USBMS):
return self.normalize_path(self._main_prefix + '.kobo/KoboReader.sqlite')
def sanitize_path_components(self, components):
return [self.invalid_filename_chars_re.sub('_', x) for x in components]
invalid_filename_chars_re = re.compile(r'[\/\\\?%\*:;\|\"\'><\$!]', re.IGNORECASE | re.UNICODE)
return [invalid_filename_chars_re.sub('_', x) for x in components]
def books(self, oncard=None, end_session=True):
from calibre.ebooks.metadata.meta import path_to_ext