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Add option --print-to-file

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Closes #2372
This commit is contained in:
pukkandan 2022-01-24 03:04:19 +05:30
parent 2edb38e8ca
commit bb66c24797
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4 changed files with 69 additions and 23 deletions
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6
README.md
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@ -686,6 +686,12 @@ You can also fork the project on github and run your fork's [build workflow](.gi
Implies --quiet and --simulate (unless
--no-simulate is used). This option can be
used multiple times
--print-to-file [WHEN:]TEMPLATE FILE
Append given template to the file. The
values of WHEN and TEMPLATE are same as
that of --print. FILE uses the same syntax
as the output template. This option can be
used multiple times
-j, --dump-json Quiet, but print JSON information for each
video. Simulate unless --no-simulate is
used. See "OUTPUT TEMPLATE" for a

62
yt_dlp/YoutubeDL.py
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@ -201,9 +201,12 @@ class YoutubeDL(object):
verbose: Print additional info to stdout.
quiet: Do not print messages to stdout.
no_warnings: Do not print out anything for warnings.
forceprint: A dict with keys video/playlist mapped to
a list of templates to force print to stdout
forceprint: A dict with keys WHEN mapped to a list of templates to
print to stdout. The allowed keys are video or any of the
items in utils.POSTPROCESS_WHEN.
For compatibility, a single list is also accepted
print_to_file: A dict with keys WHEN (same as forceprint) mapped to
a list of tuples with (template, filename)
forceurl: Force printing final URL. (Deprecated)
forcetitle: Force printing title. (Deprecated)
forceid: Force printing ID. (Deprecated)
@ -349,8 +352,8 @@ class YoutubeDL(object):
postprocessors: A list of dictionaries, each with an entry
* key: The name of the postprocessor. See
yt_dlp/postprocessor/__init__.py for a list.
* when: When to run the postprocessor. Can be one of
pre_process|before_dl|post_process|after_move.
* when: When to run the postprocessor. Allowed values are
the entries of utils.POSTPROCESS_WHEN
Assumed to be 'post_process' if not given
post_hooks: Deprecated - Register a custom postprocessor instead
A list of functions that get called as the final step
@ -592,8 +595,10 @@ class YoutubeDL(object):
else:
self.params['nooverwrites'] = not self.params['overwrites']
# Compatibility with older syntax
params.setdefault('forceprint', {})
params.setdefault('print_to_file', {})
# Compatibility with older syntax
if not isinstance(params['forceprint'], dict):
params['forceprint'] = {'video': params['forceprint']}
@ -2683,19 +2688,32 @@ class YoutubeDL(object):
subs[lang] = f
return subs
def _forceprint(self, tmpl, info_dict):
mobj = re.match(r'\w+(=?)$', tmpl)
if mobj and mobj.group(1):
tmpl = f'{tmpl[:-1]} = %({tmpl[:-1]})r'
elif mobj:
tmpl = '%({})s'.format(tmpl)
def _forceprint(self, key, info_dict):
if info_dict is None:
return
info_copy = info_dict.copy()
info_copy['formats_table'] = self.render_formats_table(info_dict)
info_copy['thumbnails_table'] = self.render_thumbnails_table(info_dict)
info_copy['subtitles_table'] = self.render_subtitles_table(info_dict.get('id'), info_dict.get('subtitles'))
info_copy['automatic_captions_table'] = self.render_subtitles_table(info_dict.get('id'), info_dict.get('automatic_captions'))
info_dict = info_dict.copy()
info_dict['formats_table'] = self.render_formats_table(info_dict)
info_dict['thumbnails_table'] = self.render_thumbnails_table(info_dict)
info_dict['subtitles_table'] = self.render_subtitles_table(info_dict.get('id'), info_dict.get('subtitles'))
info_dict['automatic_captions_table'] = self.render_subtitles_table(info_dict.get('id'), info_dict.get('automatic_captions'))
self.to_stdout(self.evaluate_outtmpl(tmpl, info_dict))
def format_tmpl(tmpl):
mobj = re.match(r'\w+(=?)$', tmpl)
if mobj and mobj.group(1):
return f'{tmpl[:-1]} = %({tmpl[:-1]})r'
elif mobj:
return f'%({tmpl})s'
return tmpl
for tmpl in self.params['forceprint'].get(key, []):
self.to_stdout(self.evaluate_outtmpl(format_tmpl(tmpl), info_copy))
for tmpl, file_tmpl in self.params['print_to_file'].get(key, []):
filename = self.evaluate_outtmpl(file_tmpl, info_dict)
tmpl = format_tmpl(tmpl)
self.to_screen(f'[info] Writing {tmpl!r} to: {filename}')
with io.open(filename, 'a', encoding='utf-8') as f:
f.write(self.evaluate_outtmpl(tmpl, info_copy) + '\n')
def __forced_printings(self, info_dict, filename, incomplete):
def print_mandatory(field, actual_field=None):
@ -2719,10 +2737,11 @@ class YoutubeDL(object):
elif 'url' in info_dict:
info_dict['urls'] = info_dict['url'] + info_dict.get('play_path', '')
if self.params['forceprint'].get('video') or self.params.get('forcejson'):
if (self.params.get('forcejson')
or self.params['forceprint'].get('video')
or self.params['print_to_file'].get('video')):
self.post_extract(info_dict)
for tmpl in self.params['forceprint'].get('video', []):
self._forceprint(tmpl, info_dict)
self._forceprint('video', info_dict)
print_mandatory('title')
print_mandatory('id')
@ -3290,8 +3309,7 @@ class YoutubeDL(object):
return infodict
def run_all_pps(self, key, info, *, additional_pps=None):
for tmpl in self.params['forceprint'].get(key, []):
self._forceprint(tmpl, info)
self._forceprint(key, info)
for pp in (additional_pps or []) + self._pps[key]:
info = self.run_pp(pp, info)
return info

5
yt_dlp/__init__.py
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@ -356,6 +356,10 @@ def _real_main(argv=None):
for type_, tmpl_list in opts.forceprint.items():
for tmpl in tmpl_list:
validate_outtmpl(tmpl, f'{type_} print template')
for type_, tmpl_list in opts.print_to_file.items():
for tmpl, file in tmpl_list:
validate_outtmpl(tmpl, f'{type_} print-to-file template')
validate_outtmpl(file, f'{type_} print-to-file filename')
validate_outtmpl(opts.sponsorblock_chapter_title, 'SponsorBlock chapter title')
for k, tmpl in opts.progress_template.items():
k = f'{k[:-6]} console title' if '-title' in k else f'{k} progress'
@ -663,6 +667,7 @@ def _real_main(argv=None):
'forcefilename': opts.getfilename,
'forceformat': opts.getformat,
'forceprint': opts.forceprint,
'print_to_file': opts.print_to_file,
'forcejson': opts.dumpjson or opts.print_json,
'dump_single_json': opts.dump_single_json,
'force_write_download_archive': opts.force_write_download_archive,

19
yt_dlp/options.py
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@ -173,11 +173,16 @@ def create_parser():
process_key=str.lower, append=False):
out_dict = dict(getattr(parser.values, option.dest))
multiple_args = not isinstance(value, str)
if multiple_keys:
allowed_keys = r'(%s)(,(%s))*' % (allowed_keys, allowed_keys)
mobj = re.match(r'(?i)(?P<keys>%s)%s(?P<val>.*)$' % (allowed_keys, delimiter), value)
mobj = re.match(
r'(?i)(?P<keys>%s)%s(?P<val>.*)$' % (allowed_keys, delimiter),
value[0] if multiple_args else value)
if mobj is not None:
keys, val = mobj.group('keys').split(','), mobj.group('val')
if multiple_args:
val = [val, *value[1:]]
elif default_key is not None:
keys, val = [default_key], value
else:
@ -923,6 +928,18 @@ def create_parser():
'Field name or output template to print to screen, optionally prefixed with when to print it, separated by a ":". '
'Supported values of "WHEN" are the same as that of --use-postprocessor, and "video" (default). '
'Implies --quiet and --simulate (unless --no-simulate is used). This option can be used multiple times'))
verbosity.add_option(
'--print-to-file',
metavar='[WHEN:]TEMPLATE FILE', dest='print_to_file', default={}, type='str', nargs=2,
action='callback', callback=_dict_from_options_callback,
callback_kwargs={
'allowed_keys': 'video|' + '|'.join(map(re.escape, POSTPROCESS_WHEN)),
'default_key': 'video',
'multiple_keys': False,
'append': True,
}, help=(
'Append given template to the file. The values of WHEN and TEMPLATE are same as that of --print. '
'FILE uses the same syntax as the output template. This option can be used multiple times'))
verbosity.add_option(
'-g', '--get-url',
action='store_true', dest='geturl', default=False,