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[InfoExtractor] Add _match_valid_url() class method and refactor

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* API compatible with yt-dlp
* also support Sequence of patterns in _VALID_URL
* one place to compile _VALID_URL
* TODO: remove existing extractor shims
This commit is contained in:
dirkf
2023-07-19 14:14:50 +01:00
parent a190b55964
commit b2ba24bb02
3 changed files with 49 additions and 22 deletions
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14
devscripts/make_lazy_extractors.py
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@ -4,6 +4,7 @@ from inspect import getsource
import io
import os
from os.path import dirname as dirn
import re
import sys
print('WARNING: Lazy loading extractors is an experimental feature that may not always work', file=sys.stderr)
@ -29,11 +30,18 @@ from youtube_dl.extractor.common import InfoExtractor, SearchInfoExtractor
with open('devscripts/lazy_load_template.py', 'rt') as f:
module_template = f.read()
def get_source(m):
return re.sub(r'(?m)^\s*#.*\n', '', getsource(m))
module_contents = [
module_template + '\n' + getsource(InfoExtractor.suitable) + '\n',
module_template,
get_source(InfoExtractor.suitable),
get_source(InfoExtractor._match_valid_url) + '\n',
'class LazyLoadSearchExtractor(LazyLoadExtractor):\n pass\n',
# needed for suitable() methods of Youtube extractor (see #28780)
'from youtube_dl.utils import parse_qs\n',
'from youtube_dl.utils import parse_qs, variadic\n',
]
ie_template = '''
@ -66,7 +74,7 @@ def build_lazy_ie(ie, name):
valid_url=valid_url,
module=ie.__module__)
if ie.suitable.__func__ is not InfoExtractor.suitable.__func__:
s += '\n' + getsource(ie.suitable)
s += '\n' + get_source(ie.suitable)
if hasattr(ie, '_make_valid_url'):
# search extractors
s += make_valid_template.format(valid_url=ie._make_valid_url())