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https://github.com/yt-dlp/yt-dlp.git
synced 2024-09-05 10:29:35 +02:00
[cache, extractor/youtube] Invalidate old cache
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parent
4e4982ab5b
commit
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@ -6,7 +6,8 @@
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import shutil
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import traceback
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from .utils import expand_path, write_json_file
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from .utils import expand_path, traverse_obj, version_tuple, write_json_file
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from .version import __version__
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class Cache:
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@ -45,12 +46,20 @@ def store(self, section, key, data, dtype='json'):
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if ose.errno != errno.EEXIST:
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raise
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self._ydl.write_debug(f'Saving {section}.{key} to cache')
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write_json_file(data, fn)
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write_json_file({'yt-dlp_version': __version__, 'data': data}, fn)
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except Exception:
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tb = traceback.format_exc()
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self._ydl.report_warning(f'Writing cache to {fn!r} failed: {tb}')
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def load(self, section, key, dtype='json', default=None):
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def _validate(self, data, after):
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version = traverse_obj(data, 'yt-dlp_version')
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if not version: # Backward compatibility
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data, version = {'data': data}, '2022.08.19'
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if not after or version_tuple(version) > version_tuple(after):
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return data['data']
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self._ydl.write_debug(f'Discarding old cache from version {version} (need {after})')
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def load(self, section, key, dtype='json', default=None, *, after=None):
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assert dtype in ('json',)
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if not self.enabled:
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@ -61,8 +70,8 @@ def load(self, section, key, dtype='json', default=None):
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try:
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with open(cache_fn, encoding='utf-8') as cachef:
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self._ydl.write_debug(f'Loading {section}.{key} from cache')
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return json.load(cachef)
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except ValueError:
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return self._validate(json.load(cachef), after)
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except (ValueError, KeyError):
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try:
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file_size = os.path.getsize(cache_fn)
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except OSError as oe:
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@ -2659,7 +2659,7 @@ def _extract_n_function_name(self, jscode):
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def _extract_n_function_code(self, video_id, player_url):
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player_id = self._extract_player_info(player_url)
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func_code = self.cache.load('youtube-nsig', player_id)
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func_code = self.cache.load('youtube-nsig', player_id, after='2022.08.19')
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jscode = func_code or self._load_player(video_id, player_url)
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jsi = JSInterpreter(jscode)
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@ -1,6 +1,6 @@
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# Autogenerated by devscripts/update-version.py
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__version__ = '2022.08.19'
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__version__ = '2022.08.19.1'
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RELEASE_GIT_HEAD = '48c88e088'
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