freqtrade_origin/freqtrade/utils.py

98 lines
3.0 KiB
Python

import logging
import sys
from argparse import Namespace
from pathlib import Path
from typing import Any, Dict, List
import arrow
from freqtrade.configuration import Configuration, TimeRange
from freqtrade.configuration.directory_operations import create_userdata_dir
from freqtrade.data.history import refresh_backtest_ohlcv_data
from freqtrade.exchange import available_exchanges
from freqtrade.resolvers import ExchangeResolver
from freqtrade.state import RunMode
logger = logging.getLogger(__name__)
def setup_utils_configuration(args: Namespace, method: RunMode) -> Dict[str, Any]:
"""
Prepare the configuration for utils subcommands
:param args: Cli args from Arguments()
:return: Configuration
"""
configuration = Configuration(args, method)
config = configuration.get_config()
config['exchange']['dry_run'] = True
# Ensure we do not use Exchange credentials
config['exchange']['key'] = ''
config['exchange']['secret'] = ''
return config
def start_list_exchanges(args: Namespace) -> None:
"""
Print available exchanges
:param args: Cli args from Arguments()
:return: None
"""
if args.print_one_column:
print('\n'.join(available_exchanges()))
else:
print(f"Exchanges supported by ccxt and available for Freqtrade: "
f"{', '.join(available_exchanges())}")
def start_create_userdir(args: Namespace) -> None:
"""
Create "user_data" directory to contain user data strategies, hyperopts, ...)
:param args: Cli args from Arguments()
:return: None
"""
if "user_data_dir" in args and args.user_data_dir:
create_userdata_dir(args.user_data_dir, create_dir=True)
else:
logger.warning("`create-userdir` requires --userdir to be set.")
sys.exit(1)
def start_download_data(args: Namespace) -> None:
"""
Download data (former download_backtest_data.py script)
"""
config = setup_utils_configuration(args, RunMode.OTHER)
timerange = TimeRange()
if 'days' in config:
time_since = arrow.utcnow().shift(days=-config['days']).strftime("%Y%m%d")
timerange = TimeRange.parse_timerange(f'{time_since}-')
dl_path = Path(config['datadir'])
logger.info(f'About to download pairs: {config["pairs"]}, '
f'intervals: {config["timeframes"]} to {dl_path}')
pairs_not_available: List[str] = []
try:
# Init exchange
exchange = ExchangeResolver(config['exchange']['name'], config).exchange
pairs_not_available = refresh_backtest_ohlcv_data(
exchange, pairs=config["pairs"], timeframes=config["timeframes"],
dl_path=Path(config['datadir']), timerange=timerange, erase=config.get("erase"))
except KeyboardInterrupt:
sys.exit("SIGINT received, aborting ...")
finally:
if pairs_not_available:
logger.info(f"Pairs [{','.join(pairs_not_available)}] not available "
f"on exchange {config['exchange']['name']}.")
# configuration.resolve_pairs_list()
print(config)