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[options] Refactor callbacks

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pukkandan 2021-05-13 17:51:22 +05:30
parent 0760b0a7e2
commit e632bce2e4
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GPG key ID: 0F00D95A001F4698
2 changed files with 17 additions and 14 deletions
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1
yt_dlp/YoutubeDL.py
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@ -2179,6 +2179,7 @@ def process_subtitles(self, video_id, normal_subtitles, automatic_captions):
requested_langs = ['en']
else:
requested_langs = [list(all_sub_langs)[0]]
self.write_debug('Downloading subtitles: %s' % ', '.join(requested_langs))
formats_query = self.params.get('subtitlesformat', 'best')
formats_preference = formats_query.split('/') if formats_query else []

30
yt_dlp/options.py
View file

@ -107,13 +107,15 @@ def _format_option_string(option):
return ''.join(opts)
def _comma_separated_values_options_callback(option, opt_str, value, parser, prepend=True):
def _list_from_options_callback(option, opt_str, value, parser, append=True, delim=','):
# append can be True, False or -1 (prepend)
current = getattr(parser.values, option.dest) if append else []
value = [value] if delim is None else value.split(delim)
setattr(
parser.values, option.dest,
value.split(',') if not prepend
else value.split(',') + getattr(parser.values, option.dest))
current + value if append is True else value + current)
def _dict_from_multiple_values_options_callback(
def _dict_from_options_callback(
option, opt_str, value, parser,
allowed_keys=r'[\w-]+', delimiter=':', default_key=None, process=None, multiple_keys=True):
@ -232,7 +234,7 @@ def _dict_from_multiple_values_options_callback(
general.add_option(
'--compat-options',
metavar='OPTS', dest='compat_opts', default=[],
action='callback', callback=_comma_separated_values_options_callback, type='str',
action='callback', callback=_list_from_options_callback, type='str',
help=(
'Options that can help keep compatibility with youtube-dl and youtube-dlc '
'configurations by reverting some of the changes made in yt-dlp. '
@ -465,8 +467,8 @@ def _dict_from_multiple_values_options_callback(
help='Video format code, see "FORMAT SELECTION" for more details')
video_format.add_option(
'-S', '--format-sort', metavar='SORTORDER',
dest='format_sort', default=[],
action='callback', callback=_comma_separated_values_options_callback, type='str',
dest='format_sort', default=[], type='str', action='callback',
callback=_list_from_options_callback, callback_kwargs={'append': -1},
help='Sort the formats by the fields given, see "Sorting Formats" for more details')
video_format.add_option(
'--format-sort-force', '--S-force',
@ -576,7 +578,7 @@ def _dict_from_multiple_values_options_callback(
subtitles.add_option(
'--sub-langs', '--srt-langs',
action='callback', dest='subtitleslangs', metavar='LANGS', type='str',
default=[], callback=_comma_separated_values_options_callback,
default=[], callback=_list_from_options_callback,
help=(
'Languages of the subtitles to download (can be regex) or "all" separated by commas. (Eg: --sub-langs en.*,ja) '
'You can prefix the language code with a "-" to exempt it from the requested languages. (Eg: --sub-langs all,-live_chat) '
@ -678,7 +680,7 @@ def _dict_from_multiple_values_options_callback(
downloader.add_option(
'--downloader', '--external-downloader',
dest='external_downloader', metavar='[PROTO:]NAME', default={}, type='str',
action='callback', callback=_dict_from_multiple_values_options_callback,
action='callback', callback=_dict_from_options_callback,
callback_kwargs={
'allowed_keys': 'http|ftp|m3u8|dash|rtsp|rtmp|mms',
'default_key': 'default',
@ -695,7 +697,7 @@ def _dict_from_multiple_values_options_callback(
downloader.add_option(
'--downloader-args', '--external-downloader-args',
metavar='NAME:ARGS', dest='external_downloader_args', default={}, type='str',
action='callback', callback=_dict_from_multiple_values_options_callback,
action='callback', callback=_dict_from_options_callback,
callback_kwargs={
'allowed_keys': '|'.join(list_external_downloaders()),
'default_key': 'default',
@ -731,7 +733,7 @@ def _dict_from_multiple_values_options_callback(
workarounds.add_option(
'--add-header',
metavar='FIELD:VALUE', dest='headers', default={}, type='str',
action='callback', callback=_dict_from_multiple_values_options_callback,
action='callback', callback=_dict_from_options_callback,
callback_kwargs={'multiple_keys': False},
help='Specify a custom HTTP header and its value, separated by a colon ":". You can use this option multiple times',
)
@ -893,7 +895,7 @@ def _dict_from_multiple_values_options_callback(
filesystem.add_option(
'-P', '--paths',
metavar='TYPES:PATH', dest='paths', default={}, type='str',
action='callback', callback=_dict_from_multiple_values_options_callback,
action='callback', callback=_dict_from_options_callback,
callback_kwargs={'allowed_keys': 'home|temp|%s' % '|'.join(OUTTMPL_TYPES.keys())},
help=(
'The paths where the files should be downloaded. '
@ -906,7 +908,7 @@ def _dict_from_multiple_values_options_callback(
filesystem.add_option(
'-o', '--output',
metavar='[TYPES:]TEMPLATE', dest='outtmpl', default={}, type='str',
action='callback', callback=_dict_from_multiple_values_options_callback,
action='callback', callback=_dict_from_options_callback,
callback_kwargs={
'allowed_keys': '|'.join(OUTTMPL_TYPES.keys()),
'default_key': 'default'
@ -1132,7 +1134,7 @@ def _dict_from_multiple_values_options_callback(
postproc.add_option(
'--postprocessor-args', '--ppa',
metavar='NAME:ARGS', dest='postprocessor_args', default={}, type='str',
action='callback', callback=_dict_from_multiple_values_options_callback,
action='callback', callback=_dict_from_options_callback,
callback_kwargs={
'allowed_keys': r'\w+(?:\+\w+)?', 'default_key': 'default-compat',
'process': compat_shlex_split,