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Add option --use-extractors

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Deprecates `--force-generic-extractor`

Closes #3234, Closes #2044

Related: #4307, #1791
This commit is contained in:
pukkandan 2022-08-24 05:42:16 +05:30
parent 5314b52192
commit fe7866d0ed
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GPG Key ID: 7EEE9E1E817D0A39
5 changed files with 58 additions and 18 deletions
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9
README.md
View File

@ -375,7 +375,13 @@ ## General Options:
--list-extractors List all supported extractors and exit
--extractor-descriptions Output descriptions of all supported
extractors and exit
--force-generic-extractor Force extraction to use the generic extractor
--use-extractors, --ies NAMES Extractor names to use separated by commas.
You can also use regexes, "all", "default"
and "end" (end URL matching); e.g. --ies
"holodex.*,end,youtube". Prefix the name
with a "-" to exclude it, e.g. --ies
default,-generic. Use --list-extractors for
a list of available extractor names
--default-search PREFIX Use this prefix for unqualified URLs. E.g.
"gvsearch2:python" downloads two videos from
google videos for the search term "python".
@ -2058,6 +2064,7 @@ #### Redundant options
#### Not recommended
While these options still work, their use is not recommended since there are other alternatives to achieve the same
--force-generic-extractor --ies generic,default
--exec-before-download CMD --exec "before_dl:CMD"
--no-exec-before-download --no-exec
--all-formats -f all

41
yt_dlp/YoutubeDL.py
View File

@ -29,6 +29,7 @@
from .downloader import FFmpegFD, get_suitable_downloader, shorten_protocol_name
from .downloader.rtmp import rtmpdump_version
from .extractor import gen_extractor_classes, get_info_extractor
from .extractor.common import UnsupportedURLIE
from .extractor.openload import PhantomJSwrapper
from .minicurses import format_text
from .postprocessor import _PLUGIN_CLASSES as plugin_postprocessors
@ -237,7 +238,7 @@ class YoutubeDL:
Default is 'only_download' for CLI, but False for API
skip_playlist_after_errors: Number of allowed failures until the rest of
the playlist is skipped
force_generic_extractor: Force downloader to use the generic extractor
allowed_extractors: List of regexes to match against extractor names that are allowed
overwrites: Overwrite all video and metadata files if True,
overwrite only non-video files if None
and don't overwrite any file if False
@ -477,6 +478,8 @@ class YoutubeDL:
The following options are deprecated and may be removed in the future:
force_generic_extractor: Force downloader to use the generic extractor
- Use allowed_extractors = ['generic', 'default']
playliststart: - Use playlist_items
Playlist item to start at.
playlistend: - Use playlist_items
@ -758,13 +761,6 @@ def add_info_extractor(self, ie):
self._ies_instances[ie_key] = ie
ie.set_downloader(self)
def _get_info_extractor_class(self, ie_key):
ie = self._ies.get(ie_key)
if ie is None:
ie = get_info_extractor(ie_key)
self.add_info_extractor(ie)
return ie
def get_info_extractor(self, ie_key):
"""
Get an instance of an IE with name ie_key, it will try to get one from
@ -781,8 +777,19 @@ def add_default_info_extractors(self):
"""
Add the InfoExtractors returned by gen_extractors to the end of the list
"""
for ie in gen_extractor_classes():
self.add_info_extractor(ie)
all_ies = {ie.IE_NAME.lower(): ie for ie in gen_extractor_classes()}
all_ies['end'] = UnsupportedURLIE()
try:
ie_names = orderedSet_from_options(
self.params.get('allowed_extractors', ['default']), {
'all': list(all_ies),
'default': [name for name, ie in all_ies.items() if ie._ENABLED],
}, use_regex=True)
except re.error as e:
raise ValueError(f'Wrong regex for allowed_extractors: {e.pattern}')
for name in ie_names:
self.add_info_extractor(all_ies[name])
self.write_debug(f'Loaded {len(ie_names)} extractors')
def add_post_processor(self, pp, when='post_process'):
"""Add a PostProcessor object to the end of the chain."""
@ -1413,11 +1420,11 @@ def extract_info(self, url, download=True, ie_key=None, extra_info=None,
ie_key = 'Generic'
if ie_key:
ies = {ie_key: self._get_info_extractor_class(ie_key)}
ies = {ie_key: self._ies[ie_key]} if ie_key in self._ies else {}
else:
ies = self._ies
for ie_key, ie in ies.items():
for key, ie in ies.items():
if not ie.suitable(url):
continue
@ -1426,14 +1433,16 @@ def extract_info(self, url, download=True, ie_key=None, extra_info=None,
'and will probably not work.')
temp_id = ie.get_temp_id(url)
if temp_id is not None and self.in_download_archive({'id': temp_id, 'ie_key': ie_key}):
self.to_screen(f'[{ie_key}] {temp_id}: has already been recorded in the archive')
if temp_id is not None and self.in_download_archive({'id': temp_id, 'ie_key': key}):
self.to_screen(f'[{key}] {temp_id}: has already been recorded in the archive')
if self.params.get('break_on_existing', False):
raise ExistingVideoReached()
break
return self.__extract_info(url, self.get_info_extractor(ie_key), download, extra_info, process)
return self.__extract_info(url, self.get_info_extractor(key), download, extra_info, process)
else:
self.report_error('no suitable InfoExtractor for URL %s' % url)
extractors_restricted = self.params.get('allowed_extractors') not in (None, ['default'])
self.report_error(f'No suitable extractor{format_field(ie_key, None, " (%s)")} found for URL {url}',
tb=False if extractors_restricted else None)
def _handle_extraction_exceptions(func):
@functools.wraps(func)

1
yt_dlp/__init__.py
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@ -766,6 +766,7 @@ def parse_options(argv=None):
'windowsfilenames': opts.windowsfilenames,
'ignoreerrors': opts.ignoreerrors,
'force_generic_extractor': opts.force_generic_extractor,
'allowed_extractors': opts.allowed_extractors or ['default'],
'ratelimit': opts.ratelimit,
'throttledratelimit': opts.throttledratelimit,
'overwrites': opts.overwrites,

13
yt_dlp/extractor/common.py
View File

@ -480,6 +480,9 @@ class InfoExtractor:
will be used by geo restriction bypass mechanism similarly
to _GEO_COUNTRIES.
The _ENABLED attribute should be set to False for IEs that
are disabled by default and must be explicitly enabled.
The _WORKING attribute should be set to False for broken IEs
in order to warn the users and skip the tests.
"""
@ -491,6 +494,7 @@ class InfoExtractor:
_GEO_COUNTRIES = None
_GEO_IP_BLOCKS = None
_WORKING = True
_ENABLED = True
_NETRC_MACHINE = None
IE_DESC = None
SEARCH_KEY = None
@ -3941,3 +3945,12 @@ def _search_results(self, query):
@classproperty
def SEARCH_KEY(cls):
return cls._SEARCH_KEY
class UnsupportedURLIE(InfoExtractor):
_VALID_URL = '.*'
_ENABLED = False
IE_DESC = False
def _real_extract(self, url):
raise UnsupportedError(url)

12
yt_dlp/options.py
View File

@ -353,10 +353,20 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
'--extractor-descriptions',
action='store_true', dest='list_extractor_descriptions', default=False,
help='Output descriptions of all supported extractors and exit')
general.add_option(
'--use-extractors', '--ies',
action='callback', dest='allowed_extractors', metavar='NAMES', type='str',
default=[], callback=_list_from_options_callback,
help=(
'Extractor names to use separated by commas. '
'You can also use regexes, "all", "default" and "end" (end URL matching); '
'e.g. --ies "holodex.*,end,youtube". '
'Prefix the name with a "-" to exclude it, e.g. --ies default,-generic. '
'Use --list-extractors for a list of available extractor names'))
general.add_option(
'--force-generic-extractor',
action='store_true', dest='force_generic_extractor', default=False,
help='Force extraction to use the generic extractor')
help=optparse.SUPPRESS_HELP)
general.add_option(
'--default-search',
dest='default_search', metavar='PREFIX',