209 lines
7.4 KiB
Python
209 lines
7.4 KiB
Python
import os
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import sys
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import pathlib
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import argparse
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from lbry.conf import Config, CLIConfig
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from lbry.service import API, Daemon
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from lbry.service.metadata import interface
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from lbry.service.full_node import FullNode
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from lbry.blockchain.ledger import Ledger
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from lbry.console import Advanced as AdvancedConsole, Basic as BasicConsole
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# TODO: switch to pre-generated metadata interface
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from lbry.service.parser import get_api_definitions
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interface = get_api_definitions(API)
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def split_subparser_argument(parent, original, name, condition):
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new_sub_parser = argparse._SubParsersAction(
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original.option_strings,
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original._prog_prefix,
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original._parser_class,
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metavar=original.metavar
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)
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new_sub_parser._name_parser_map = original._name_parser_map
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new_sub_parser._choices_actions = [
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a for a in original._choices_actions if condition(original._name_parser_map[a.dest])
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]
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group = argparse._ArgumentGroup(parent, name)
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group._group_actions = [new_sub_parser]
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return group
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class ArgumentParser(argparse.ArgumentParser):
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def __init__(self, *args, group_name=None, **kwargs):
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super().__init__(*args, formatter_class=HelpFormatter, add_help=False, **kwargs)
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self.add_argument(
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'--help', dest='help', action='store_true', default=False,
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help='Show this help message and exit.'
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)
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self._optionals.title = 'Options'
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if group_name is None:
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self.epilog = (
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f"Run 'lbrynet COMMAND --help' for more information on a command or group."
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)
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else:
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self.epilog = (
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f"Run 'lbrynet {group_name} COMMAND --help' for more information on a command."
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)
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self.set_defaults(group=group_name, group_parser=self)
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def format_help(self):
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formatter = self._get_formatter()
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formatter.add_usage(
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self.usage, self._actions, self._mutually_exclusive_groups
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)
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formatter.add_text(self.description)
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# positionals, optionals and user-defined groups
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for action_group in self._granular_action_groups:
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formatter.start_section(action_group.title)
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formatter.add_text(action_group.description)
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formatter.add_arguments(action_group._group_actions)
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formatter.end_section()
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formatter.add_text(self.epilog)
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return formatter.format_help()
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@property
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def _granular_action_groups(self):
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if self.prog != 'lbrynet':
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yield from self._action_groups
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return
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yield self._optionals
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action: argparse._SubParsersAction = self._positionals._group_actions[0]
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yield split_subparser_argument(
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self, action, "Grouped Commands", lambda parser: 'group' in parser._defaults
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)
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yield split_subparser_argument(
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self, action, "Commands", lambda parser: 'group' not in parser._defaults
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)
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def error(self, message):
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self.print_help(argparse._sys.stderr)
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self.exit(2, f"\n{message}\n")
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class HelpFormatter(argparse.HelpFormatter):
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def add_usage(self, usage, actions, groups, prefix='Usage: '):
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super().add_usage(
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usage, [a for a in actions if a.option_strings != ['--help']], groups, prefix
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)
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def add_command_parser(parent, method_name, command):
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short = command['desc']['text'][0] if command['desc'] else ''
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subcommand = parent.add_parser(command['name'], help=short)
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subcommand.set_defaults(api_method_name=method_name, command=command['name'], doc=command['help'])
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def get_argument_parser():
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root = ArgumentParser(
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'lbrynet', description='An interface to the LBRY Network.', allow_abbrev=False,
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)
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root.add_argument(
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'-v', '--version', dest='cli_version', action="store_true",
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help='Show lbrynet CLI version and exit.'
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)
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root.set_defaults(group=None, command=None)
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CLIConfig.contribute_to_argparse(root)
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sub = root.add_subparsers(metavar='COMMAND')
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start = sub.add_parser(
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'start',
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usage='lbrynet start [--config FILE] [--data-dir DIR] [--wallet-dir DIR] [--download-dir DIR] ...',
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help='Start LBRY Network interface.'
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)
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start.add_argument(
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'--full-node', dest='full_node', action="store_true",
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help='Start a full node with local blockchain data, requires lbrycrd.'
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)
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start.add_argument(
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'--quiet', dest='quiet', action="store_true",
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help='Disable all console output.'
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)
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start.add_argument(
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'--no-logging', dest='no_logging', action="store_true",
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help='Disable all logging of any kind.'
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)
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start.add_argument(
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'--verbose', nargs="*",
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help=('Enable debug output for lbry logger and event loop. Optionally specify loggers for which debug output '
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'should selectively be applied.')
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)
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start.add_argument(
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'--initial-headers', dest='initial_headers',
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help='Specify path to initial blockchain headers, faster than downloading them on first run.'
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)
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Config.contribute_to_argparse(start)
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start.set_defaults(command='start', start_parser=start, doc=start.format_help())
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groups = {}
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for group_name in sorted(interface['groups']):
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group_parser = sub.add_parser(group_name, group_name=group_name, help=interface['groups'][group_name])
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groups[group_name] = group_parser.add_subparsers(metavar='COMMAND')
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nicer_order = ['stop', 'get', 'publish', 'resolve']
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for command_name in sorted(interface['commands']):
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if command_name not in nicer_order:
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nicer_order.append(command_name)
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for command_name in nicer_order:
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command = interface['commands'][command_name]
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if command.get('group') is None:
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add_command_parser(sub, command_name, command)
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else:
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add_command_parser(groups[command['group']], command_name, command)
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return root
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def ensure_directory_exists(path: str):
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if not os.path.isdir(path):
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pathlib.Path(path).mkdir(parents=True, exist_ok=True)
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def main(argv=None):
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argv = argv or sys.argv[1:]
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parser = get_argument_parser()
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args, command_args = parser.parse_known_args(argv)
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conf = Config.create_from_arguments(args)
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for directory in (conf.data_dir, conf.download_dir, conf.wallet_dir):
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ensure_directory_exists(directory)
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if args.cli_version:
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from lbry import __version__
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print(f"lbrynet {__version__}")
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elif args.command == 'start':
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if args.help:
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args.start_parser.print_help()
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elif args.full_node:
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service = FullNode(Ledger(conf), conf.db_url_or_default)
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if conf.console == "advanced":
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console = AdvancedConsole(service)
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else:
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console = BasicConsole(service)
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return Daemon(service, console).run()
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else:
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print('Only `start --full-node` is currently supported.')
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elif args.command is not None:
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doc = args.doc
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api_method_name = args.api_method_name
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if args.help:
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print(doc)
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else:
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parsed = docopt(doc, command_args)
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params = set_kwargs(parsed)
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asyncio.get_event_loop().run_until_complete(execute_command(conf, api_method_name, params))
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elif args.group is not None:
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args.group_parser.print_help()
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else:
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parser.print_help()
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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