65 lines
2.4 KiB
Python
65 lines
2.4 KiB
Python
import logging
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import sys
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from typing import Any, Dict, List
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import arrow
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from freqtrade.configuration import TimeRange
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from freqtrade.data.history import (convert_trades_to_ohlcv,
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refresh_backtest_ohlcv_data,
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refresh_backtest_trades_data)
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from freqtrade.exceptions import OperationalException
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from freqtrade.resolvers import ExchangeResolver
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from freqtrade.state import RunMode
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from .utils import setup_utils_configuration
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logger = logging.getLogger(__name__)
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def start_download_data(args: Dict[str, Any]) -> None:
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"""
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Download data (former download_backtest_data.py script)
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"""
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config = setup_utils_configuration(args, RunMode.UTIL_EXCHANGE)
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timerange = TimeRange()
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if 'days' in config:
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time_since = arrow.utcnow().shift(days=-config['days']).strftime("%Y%m%d")
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timerange = TimeRange.parse_timerange(f'{time_since}-')
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if 'pairs' not in config:
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raise OperationalException(
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"Downloading data requires a list of pairs. "
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"Please check the documentation on how to configure this.")
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logger.info(f'About to download pairs: {config["pairs"]}, '
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f'intervals: {config["timeframes"]} to {config["datadir"]}')
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pairs_not_available: List[str] = []
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# Init exchange
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exchange = ExchangeResolver.load_exchange(config['exchange']['name'], config)
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try:
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if config.get('download_trades'):
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pairs_not_available = refresh_backtest_trades_data(
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exchange, pairs=config["pairs"], datadir=config['datadir'],
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timerange=timerange, erase=config.get("erase"))
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# Convert downloaded trade data to different timeframes
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convert_trades_to_ohlcv(
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pairs=config["pairs"], timeframes=config["timeframes"],
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datadir=config['datadir'], timerange=timerange, erase=config.get("erase"))
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else:
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pairs_not_available = refresh_backtest_ohlcv_data(
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exchange, pairs=config["pairs"], timeframes=config["timeframes"],
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datadir=config['datadir'], timerange=timerange, erase=config.get("erase"))
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except KeyboardInterrupt:
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sys.exit("SIGINT received, aborting ...")
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finally:
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if pairs_not_available:
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logger.info(f"Pairs [{','.join(pairs_not_available)}] not available "
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f"on exchange {exchange.name}.")
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