lbry-sdk/lbrynet/extras/cli.py
Lex Berezhny d5f2832b2f pylint
2019-01-22 18:04:17 -05:00

215 lines
7.3 KiB
Python

import sys
import json
import asyncio
import argparse
import logging
from docopt import docopt
from textwrap import dedent
import aiohttp
from lbrynet.extras.compat import force_asyncioreactor_install
force_asyncioreactor_install()
from lbrynet import log_support, __name__ as lbrynet_name, __version__ as lbrynet_version
from lbrynet.extras.daemon.loggly_handler import get_loggly_handler
from lbrynet.conf import Config, CLIConfig
from lbrynet.utils import check_connection
from lbrynet.extras.daemon.Daemon import Daemon
log = logging.getLogger(lbrynet_name)
log.addHandler(logging.NullHandler())
def display(data):
print(json.dumps(data, indent=2))
async def execute_command(conf, method, params):
async with aiohttp.ClientSession() as session:
try:
message = {'method': method, 'params': params}
async with session.get(conf.api_connection_url, json=message) as resp:
try:
data = await resp.json()
if 'result' in data:
display(data['result'])
elif 'error' in data:
if 'message' in data['error']:
display(data['error']['message'])
else:
display(data['error'])
except Exception as e:
log.exception('Could not process response from server:', exc_info=e)
except aiohttp.ClientConnectionError:
print("Could not connect to daemon. Are you sure it's running?")
def print_help():
print(dedent("""
NAME
lbrynet - LBRY command line client.
USAGE
lbrynet [--data_dir=<blob and database directory>] [--wallet_dir=<wallet directory>]
[--download_dir=<downloads directory>] <command> [<args>]
EXAMPLES
lbrynet start # starts the daemon and listens for jsonrpc commands
lbrynet help # display this message
lbrynet help <command_name> # get help for a command(doesn't need the daemon to be running)
lbrynet commands # list available commands
lbrynet status # get the running status of the daemon
lbrynet resolve what # resolve a name
lbrynet --wallet_dir=~/wallet2 start # start the daemon using an alternative wallet directory
lbrynet --data_dir=~/lbry start # start the daemon using an alternative data directory
lbrynet --data_dir=~/lbry <command_name> # run a command on a daemon using an alternative data directory,
# which can contain a full daemon_settings.yml config file.
# Note: since the daemon is what runs the wallet and
# downloads files, only the --data_dir setting is needed when
# running commands. The wallet_dir and download_dir would only
# by used when starting the daemon.
"""))
def print_help_for_command(command):
fn = Daemon.callable_methods.get(command)
if fn:
print(dedent(fn.__doc__))
else:
print("Invalid command name")
def normalize_value(x, key=None):
if not isinstance(x, str):
return x
if key in ('uri', 'channel_name', 'name', 'file_name', 'download_directory'):
return x
if x.lower() == 'true':
return True
if x.lower() == 'false':
return False
if x.isdigit():
return int(x)
return x
def remove_brackets(key):
if key.startswith("<") and key.endswith(">"):
return str(key[1:-1])
return key
def set_kwargs(parsed_args):
kwargs = {}
for key, arg in parsed_args.items():
k = None
if arg is None:
continue
elif key.startswith("--") and remove_brackets(key[2:]) not in kwargs:
k = remove_brackets(key[2:])
elif remove_brackets(key) not in kwargs:
k = remove_brackets(key)
kwargs[k] = normalize_value(arg, k)
return kwargs
def get_argument_parser():
main = argparse.ArgumentParser('lbrynet')
main.add_argument(
'--version', dest='cli_version', action="store_true",
help='Show lbrynet CLI version and exit.'
)
CLIConfig.contribute_args(main)
sub = main.add_subparsers(dest='command')
start = sub.add_parser('start', help='Start lbrynet server.')
start.add_argument(
'--quiet', dest='quiet', action="store_true",
help='Disable all console output.'
)
start.add_argument(
'--verbose', nargs="*",
help=('Enable debug output. Optionally specify loggers for which debug output '
'should selectively be applied.')
)
start.add_argument(
'--version', action="store_true",
help='Show daemon version and quit'
)
Config.contribute_args(start)
api = Daemon.get_api_definitions()
for group in sorted(api):
group_command = sub.add_parser(group, help=api[group]['doc'])
group_command.set_defaults(group_doc=group_command)
commands = group_command.add_subparsers(dest='subcommand')
for command in api[group]['commands']:
commands.add_parser(command['name'], help=command['doc'].strip().splitlines()[0])
return main
def main(argv=None):
argv = argv or sys.argv[1:]
parser = get_argument_parser()
args = parser.parse_args(argv)
conf = Config.create_from_arguments(args)
if args.cli_version:
print(f"{lbrynet_name} {lbrynet_version}")
return 0
elif args.command == 'start':
console_output = True
verbose = True
log_support.configure_logging(conf.log_file_path, console_output, verbose)
if conf.share_usage_data:
loggly_handler = get_loggly_handler()
loggly_handler.setLevel(logging.ERROR)
log.addHandler(loggly_handler)
log.debug('Final Settings: %s', conf.settings_dict)
log.info("Starting lbrynet-daemon from command line")
daemon = Daemon(conf)
if check_connection():
from twisted.internet import reactor
reactor._asyncioEventloop.create_task(daemon.start())
reactor.run()
else:
log.info("Not connected to internet, unable to start")
elif args.command is not None:
if args.subcommand is not None:
method = f'{args.command}_{args.subcommand}'
command_before_args = args.subcommand
elif args.command in ('status', 'publish', 'version'):
method = command_before_args = args.command
else:
args.group_doc.print_help()
return 0
command_index = 0
for i, argv_i in enumerate(argv):
if argv_i == command_before_args:
command_index = i
break
fn = Daemon.callable_methods[method]
parsed = docopt(fn.__doc__, argv[command_index+1:])
params = set_kwargs(parsed)
loop = asyncio.get_event_loop()
loop.run_until_complete(execute_command(conf, method, params))
else:
parser.print_help()
return 0
if __name__ == "__main__":
sys.exit(main())