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Add option --alias

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This commit is contained in:
pukkandan
2022-05-19 19:45:21 +05:30
parent 926ccc84ef
commit 9e49146352
5 changed files with 167 additions and 48 deletions
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135
yt_dlp/options.py
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@@ -1,7 +1,10 @@
import collections
import contextlib
import optparse
import os.path
import re
import shlex
import string
import sys
from .compat import compat_expanduser, compat_get_terminal_size, compat_getenv
@@ -15,6 +18,7 @@ from .postprocessor import (
SponsorBlockPP,
)
from .postprocessor.modify_chapters import DEFAULT_SPONSORBLOCK_CHAPTER_TITLE
from .update import detect_variant
from .utils import (
OUTTMPL_TYPES,
POSTPROCESS_WHEN,
@@ -29,15 +33,9 @@ from .version import __version__
def parseOpts(overrideArguments=None, ignore_config_files='if_override'):
parser = create_parser()
root = Config(parser)
root = Config(create_parser())
if ignore_config_files == 'if_override':
ignore_config_files = overrideArguments is not None
if overrideArguments:
root.append_config(overrideArguments, label='Override')
else:
root.append_config(sys.argv[1:], label='Command-line')
def _readUserConf(package_name, default=[]):
# .config
@@ -73,7 +71,7 @@ def parseOpts(overrideArguments=None, ignore_config_files='if_override'):
def add_config(label, path, user=False):
""" Adds config and returns whether to continue """
if root.parse_args()[0].ignoreconfig:
if root.parse_known_args()[0].ignoreconfig:
return False
# Multiple package names can be given here
# Eg: ('yt-dlp', 'youtube-dlc', 'youtube-dl') will look for
@@ -92,22 +90,44 @@ def parseOpts(overrideArguments=None, ignore_config_files='if_override'):
def load_configs():
yield not ignore_config_files
yield add_config('Portable', get_executable_path())
yield add_config('Home', expand_path(root.parse_args()[0].paths.get('home', '')).strip())
yield add_config('Home', expand_path(root.parse_known_args()[0].paths.get('home', '')).strip())
yield add_config('User', None, user=True)
yield add_config('System', '/etc')
if all(load_configs()):
# If ignoreconfig is found inside the system configuration file,
# the user configuration is removed
if root.parse_args()[0].ignoreconfig:
user_conf = next((i for i, conf in enumerate(root.configs) if conf.label == 'User'), None)
if user_conf is not None:
root.configs.pop(user_conf)
opts = optparse.Values({'verbose': True, 'print_help': False})
try:
if overrideArguments:
root.append_config(overrideArguments, label='Override')
else:
root.append_config(sys.argv[1:], label='Command-line')
opts, args = root.parse_args()
if opts.verbose:
write_string(f'\n{root}'.replace('\n| ', '\n[debug] ')[1:] + '\n')
return parser, opts, args
if all(load_configs()):
# If ignoreconfig is found inside the system configuration file,
# the user configuration is removed
if root.parse_known_args()[0].ignoreconfig:
user_conf = next((i for i, conf in enumerate(root.configs) if conf.label == 'User'), None)
if user_conf is not None:
root.configs.pop(user_conf)
opts, args = root.parse_args()
except optparse.OptParseError:
with contextlib.suppress(optparse.OptParseError):
opts, _ = root.parse_known_args(strict=False)
raise
except (SystemExit, KeyboardInterrupt):
opts.verbose = False
raise
finally:
verbose = opts.verbose and f'\n{root}'.replace('\n| ', '\n[debug] ')[1:]
if verbose:
write_string(f'{verbose}\n')
if opts.print_help:
if verbose:
write_string('\n')
root.parser.print_help()
if opts.print_help:
sys.exit()
return root.parser, opts, args
class _YoutubeDLHelpFormatter(optparse.IndentedHelpFormatter):
@@ -133,10 +153,11 @@ class _YoutubeDLHelpFormatter(optparse.IndentedHelpFormatter):
class _YoutubeDLOptionParser(optparse.OptionParser):
# optparse is deprecated since python 3.2. So assume a stable interface even for private methods
ALIAS_TRIGGER_LIMIT = 100
def __init__(self):
super().__init__(
prog='yt-dlp',
prog='yt-dlp' if detect_variant() == 'source' else None,
version=__version__,
usage='%prog [OPTIONS] URL [URL...]',
epilog='See full documentation at https://github.com/yt-dlp/yt-dlp#readme',
@@ -144,6 +165,29 @@ class _YoutubeDLOptionParser(optparse.OptionParser):
conflict_handler='resolve',
)
_UNKNOWN_OPTION = (optparse.BadOptionError, optparse.AmbiguousOptionError)
_BAD_OPTION = optparse.OptionValueError
def parse_known_args(self, args=None, values=None, strict=True):
"""Same as parse_args, but ignore unknown switches. Similar to argparse.parse_known_args"""
self.rargs, self.largs = self._get_args(args), []
self.values = values or self.get_default_values()
while self.rargs:
try:
self._process_args(self.largs, self.rargs, self.values)
except optparse.OptParseError as err:
if isinstance(err, self._UNKNOWN_OPTION):
self.largs.append(err.opt_str)
elif strict:
if isinstance(err, self._BAD_OPTION):
self.error(str(err))
raise
return self.check_values(self.values, self.largs)
def error(self, msg):
msg = f'{self.get_prog_name()}: error: {msg.strip()}\n'
raise optparse.OptParseError(f'{self.get_usage()}\n{msg}' if self.usage else msg)
def _get_args(self, args):
return sys.argv[1:] if args is None else list(args)
@@ -223,11 +267,44 @@ def create_parser():
setattr(parser.values, option.dest, out_dict)
parser = _YoutubeDLOptionParser()
alias_group = optparse.OptionGroup(parser, 'Aliases')
Formatter = string.Formatter()
def _create_alias(option, opt_str, value, parser):
aliases, opts = value
try:
nargs = len({i if f == '' else f
for i, (_, f, _, _) in enumerate(Formatter.parse(opts)) if f is not None})
opts.format(*map(str, range(nargs))) # validate
except Exception as err:
raise optparse.OptionValueError(f'wrong {opt_str} OPTIONS formatting; {err}')
if alias_group not in parser.option_groups:
parser.add_option_group(alias_group)
aliases = (x if x.startswith('-') else f'--{x}' for x in map(str.strip, aliases.split(',')))
try:
alias_group.add_option(
*aliases, help=opts, nargs=nargs, type='str' if nargs else None,
dest='_triggered_aliases', default=collections.defaultdict(int),
metavar=' '.join(f'ARG{i}' for i in range(nargs)), action='callback',
callback=_alias_callback, callback_kwargs={'opts': opts, 'nargs': nargs})
except Exception as err:
raise optparse.OptionValueError(f'wrong {opt_str} formatting; {err}')
def _alias_callback(option, opt_str, value, parser, opts, nargs):
counter = getattr(parser.values, option.dest)
counter[opt_str] += 1
if counter[opt_str] > parser.ALIAS_TRIGGER_LIMIT:
raise optparse.OptionValueError(f'Alias {opt_str} exceeded invocation limit')
if nargs == 1:
value = [value]
assert (nargs == 0 and value is None) or len(value) == nargs
parser.rargs[:0] = shlex.split(
opts if value is None else opts.format(*map(shlex.quote, value)))
general = optparse.OptionGroup(parser, 'General Options')
general.add_option(
'-h', '--help',
action='help',
'-h', '--help', dest='print_help', action='store_true',
help='Print this help text and exit')
general.add_option(
'--version',
@@ -344,6 +421,18 @@ def create_parser():
'Options that can help keep compatibility with youtube-dl or youtube-dlc '
'configurations by reverting some of the changes made in yt-dlp. '
'See "Differences in default behavior" for details'))
general.add_option(
'--alias', metavar='ALIASES OPTIONS', dest='_', type='str', nargs=2,
action='callback', callback=_create_alias,
help=(
'Create aliases for an option string. Unless an alias starts with a dash "-", it is prefixed with "--". '
'Arguments are parsed according to the Python string formatting mini-language. '
'Eg: --alias get-audio,-X "-S=aext:{0},abr -x --audio-format {0}" creates options '
'"--get-audio" and "-X" that takes an argument (ARG0) and expands to '
'"-S=aext:ARG0,abr -x --audio-format ARG0". All defined aliases are listed in the --help output. '
'Alias options can trigger more aliases; so be carefull to avoid defining recursive options. '
f'As a safety measure, each alias may be triggered a maximum of {_YoutubeDLOptionParser.ALIAS_TRIGGER_LIMIT} times. '
'This option can be used multiple times'))
network = optparse.OptionGroup(parser, 'Network Options')
network.add_option(