R-yan/l1ving_youtube-dl
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[utils] Add a cache for translations

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This commit is contained in:
Yen Chi Hsuan 2015-12-26 05:47:51 +08:00
parent 312bfeca77
commit cedf7b1510
1 changed files with 26 additions and 12 deletions
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38
youtube_dl/utils.py
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@ -2531,20 +2531,22 @@ class I18N(object):
def __init__(self):
self.default_lang = None
self.domain = 'youtube_dl'
self._translation_cache = {}
def translate(self, s):
if self.default_lang is not None:
lang = self.default_lang
else:
lang, _ = locale.getdefaultlocale()
def _load_translation(self, lang):
t = self._translation_cache.get(lang)
for root in get_root_dirs():
try:
t = gettext.translation(self.domain, os.path.join(root, 'share', 'locale'), [lang])
if t is not None:
break
except (OSError, IOError): # OSError for 3.3+ and IOError otherwise
t = None
if t is not None:
return t
if t is None:
for root in get_root_dirs():
try:
t = gettext.translation(self.domain, os.path.join(root, 'share', 'locale'), [lang])
if t is not None:
break
except (OSError, IOError): # OSError for 3.3+ and IOError otherwise
t = None
if t is None and sys.platform == 'win32' and hasattr(sys, 'frozen'):
locale_data_zip = _load_exe_resource('LOCALE_DATA', 'LOCALE_DATA.ZIP')
@ -2559,6 +2561,18 @@ class I18N(object):
t = gettext.GNUTranslations(mo_file)
zipf.close()
if t is not None:
self._translation_cache[lang] = t
return t
def translate(self, s):
if self.default_lang is not None:
lang = self.default_lang
else:
lang, _ = locale.getdefaultlocale()
t = self._load_translation(lang)
if t is None:
return s