freqtrade_origin/freqtrade/configuration/directory_operations.py

94 lines
3.5 KiB
Python

import logging
import shutil
from pathlib import Path
from typing import Optional
from freqtrade.configuration.detect_environment import running_in_docker
from freqtrade.constants import (USER_DATA_FILES, USERPATH_FREQAIMODELS, USERPATH_HYPEROPTS,
USERPATH_NOTEBOOKS, USERPATH_STRATEGIES, Config)
from freqtrade.exceptions import OperationalException
logger = logging.getLogger(__name__)
def create_datadir(config: Config, datadir: Optional[str] = None) -> Path:
folder = Path(datadir) if datadir else Path(f"{config['user_data_dir']}/data")
if not datadir:
# set datadir
exchange_name = config.get('exchange', {}).get('name', '').lower()
folder = folder.joinpath(exchange_name)
if not folder.is_dir():
folder.mkdir(parents=True)
logger.info(f'Created data directory: {datadir}')
return folder
def chown_user_directory(directory: Path) -> None:
"""
Use Sudo to change permissions of the home-directory if necessary
Only applies when running in docker!
"""
if running_in_docker():
try:
import subprocess
subprocess.check_output(
['sudo', 'chown', '-R', 'ftuser:', str(directory.resolve())])
except Exception:
logger.warning(f"Could not chown {directory}")
def create_userdata_dir(directory: str, create_dir: bool = False) -> Path:
"""
Create userdata directory structure.
if create_dir is True, then the parent-directory will be created if it does not exist.
Sub-directories will always be created if the parent directory exists.
Raises OperationalException if given a non-existing directory.
:param directory: Directory to check
:param create_dir: Create directory if it does not exist.
:return: Path object containing the directory
"""
sub_dirs = ["backtest_results", "data", USERPATH_HYPEROPTS, "hyperopt_results", "logs",
USERPATH_NOTEBOOKS, "plot", USERPATH_STRATEGIES, USERPATH_FREQAIMODELS]
folder = Path(directory)
chown_user_directory(folder)
if not folder.is_dir():
if create_dir:
folder.mkdir(parents=True)
logger.info(f'Created user-data directory: {folder}')
else:
raise OperationalException(
f"Directory `{folder}` does not exist. "
"Please use `freqtrade create-userdir` to create a user directory")
# Create required subdirectories
for f in sub_dirs:
subfolder = folder / f
if not subfolder.is_dir():
subfolder.mkdir(parents=False)
return folder
def copy_sample_files(directory: Path, overwrite: bool = False) -> None:
"""
Copy files from templates to User data directory.
:param directory: Directory to copy data to
:param overwrite: Overwrite existing sample files
"""
if not directory.is_dir():
raise OperationalException(f"Directory `{directory}` does not exist.")
sourcedir = Path(__file__).parents[1] / "templates"
for source, target in USER_DATA_FILES.items():
targetdir = directory / target
if not targetdir.is_dir():
raise OperationalException(f"Directory `{targetdir}` does not exist.")
targetfile = targetdir / source
if targetfile.exists():
if not overwrite:
logger.warning(f"File `{targetfile}` exists already, not deploying sample file.")
continue
logger.warning(f"File `{targetfile}` exists already, overwriting.")
shutil.copy(str(sourcedir / source), str(targetfile))