from os.path import dirname as dirn
import sys
-print('WARNING: Lazy loading extractors is an experimental feature that may not always work', file=sys.stderr)
-
sys.path.insert(0, dirn(dirn((os.path.abspath(__file__)))))
-lazy_extractors_filename = sys.argv[1]
+lazy_extractors_filename = sys.argv[1] if len(sys.argv) > 1 else 'yt_dlp/extractor/lazy_extractors.py'
if os.path.exists(lazy_extractors_filename):
os.remove(lazy_extractors_filename)
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 + '\n' + getsource(InfoExtractor.suitable) + '\n',
- 'class LazyLoadSearchExtractor(LazyLoadExtractor):\n pass\n']
+ module_template,
+ *[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}'
'''
-make_valid_template = '''
- @classmethod
- def _make_valid_url(cls):
- return {valid_url!r}
-'''
-
def get_base_name(base):
if base is InfoExtractor:
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 not valid_url and hasattr(ie, '_make_valid_url'):
+ valid_url = ie._make_valid_url()
+ if valid_url:
+ s += f' _VALID_URL = {valid_url!r}\n'
+ if not ie._WORKING:
+ s += ' _WORKING = False\n'
if ie.suitable.__func__ is not InfoExtractor.suitable.__func__:
- s += '\n' + getsource(ie.suitable)
- if hasattr(ie, '_make_valid_url'):
- # search extractors
- s += make_valid_template.format(valid_url=ie._make_valid_url())
+ s += f'\n{getsource(ie.suitable)}'
return s
names.append(name)
module_contents.append(
- '_ALL_CLASSES = [{0}]'.format(', '.join(names)))
+ '\n_ALL_CLASSES = [{0}]'.format(', '.join(names)))
module_src = '\n'.join(module_contents) + '\n'