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[lazy_extractor] Create instance only after pre-checking archive

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pukkandan 2021-08-23 04:45:30 +05:30
parent 5bc4a65eea
commit 251ae04e6a
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GPG key ID: 0F00D95A001F4698
4 changed files with 14 additions and 12 deletions
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1
devscripts/lazy_load_template.py
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@ -9,6 +9,7 @@ class LazyLoadMetaClass(type):
class LazyLoadExtractor(metaclass=LazyLoadMetaClass):
_module = None
_WORKING = True
@classmethod
def _get_real_class(cls):

15
devscripts/make_lazy_extractors.py
View file

@ -30,16 +30,14 @@ if os.path.exists(plugins_blocked_dirname):
with open('devscripts/lazy_load_template.py', 'rt') as f:
module_template = f.read()
CLASS_PROPERTIES = ['ie_key', 'working', '_match_valid_url', 'suitable', '_match_id', 'get_temp_id']
module_contents = [
module_template,
getsource(InfoExtractor.ie_key),
getsource(InfoExtractor._match_valid_url),
getsource(InfoExtractor.suitable),
*[getsource(getattr(InfoExtractor, k)) for k in CLASS_PROPERTIES],
'\nclass LazyLoadSearchExtractor(LazyLoadExtractor):\n pass\n']
ie_template = '''
class {name}({bases}):
_VALID_URL = {valid_url!r}
_module = '{module}'
'''
@ -60,14 +58,17 @@ def get_base_name(base):
def build_lazy_ie(ie, name):
valid_url = getattr(ie, '_VALID_URL', None)
s = ie_template.format(
name=name,
bases=', '.join(map(get_base_name, ie.__bases__)),
valid_url=valid_url,
module=ie.__module__)
valid_url = getattr(ie, '_VALID_URL', None)
if valid_url:
s += f' _VALID_URL = {valid_url!r}\n'
if not ie._WORKING:
s += f' _WORKING = False\n'
if ie.suitable.__func__ is not InfoExtractor.suitable.__func__:
s += '\n' + getsource(ie.suitable)
s += f'\n{getsource(ie.suitable)}'
if hasattr(ie, '_make_valid_url'):
# search extractors
s += make_valid_template.format(valid_url=ie._make_valid_url())