stable/freqtrade/commands/deploy_commands.py
2021-09-12 08:18:13 +02:00

172 lines
6.0 KiB
Python

import logging
import sys
from pathlib import Path
from typing import Any, Dict, Optional, Tuple
import requests
from freqtrade.configuration import setup_utils_configuration
from freqtrade.configuration.directory_operations import copy_sample_files, create_userdata_dir
from freqtrade.constants import USERPATH_STRATEGIES
from freqtrade.enums import RunMode
from freqtrade.exceptions import OperationalException
from freqtrade.misc import render_template, render_template_with_fallback
logger = logging.getLogger(__name__)
def start_create_userdir(args: Dict[str, Any]) -> None:
"""
Create "user_data" directory to contain user data strategies, hyperopt, ...)
:param args: Cli args from Arguments()
:return: None
"""
if "user_data_dir" in args and args["user_data_dir"]:
userdir = create_userdata_dir(args["user_data_dir"], create_dir=True)
copy_sample_files(userdir, overwrite=args["reset"])
else:
logger.warning("`create-userdir` requires --userdir to be set.")
sys.exit(1)
def deploy_new_strategy(strategy_name: str, strategy_path: Path, subtemplate: str) -> None:
"""
Deploy new strategy from template to strategy_path
"""
fallback = 'full'
indicators = render_template_with_fallback(
templatefile=f"subtemplates/indicators_{subtemplate}.j2",
templatefallbackfile=f"subtemplates/indicators_{fallback}.j2",
)
buy_trend = render_template_with_fallback(
templatefile=f"subtemplates/buy_trend_{subtemplate}.j2",
templatefallbackfile=f"subtemplates/buy_trend_{fallback}.j2",
)
sell_trend = render_template_with_fallback(
templatefile=f"subtemplates/sell_trend_{subtemplate}.j2",
templatefallbackfile=f"subtemplates/sell_trend_{fallback}.j2",
)
plot_config = render_template_with_fallback(
templatefile=f"subtemplates/plot_config_{subtemplate}.j2",
templatefallbackfile=f"subtemplates/plot_config_{fallback}.j2",
)
additional_methods = render_template_with_fallback(
templatefile=f"subtemplates/strategy_methods_{subtemplate}.j2",
templatefallbackfile="subtemplates/strategy_methods_empty.j2",
)
strategy_text = render_template(templatefile='base_strategy.py.j2',
arguments={"strategy": strategy_name,
"indicators": indicators,
"buy_trend": buy_trend,
"sell_trend": sell_trend,
"plot_config": plot_config,
"additional_methods": additional_methods,
})
logger.info(f"Writing strategy to `{strategy_path}`.")
strategy_path.write_text(strategy_text)
def start_new_strategy(args: Dict[str, Any]) -> None:
config = setup_utils_configuration(args, RunMode.UTIL_NO_EXCHANGE)
if "strategy" in args and args["strategy"]:
new_path = config['user_data_dir'] / USERPATH_STRATEGIES / (args['strategy'] + '.py')
if new_path.exists():
raise OperationalException(f"`{new_path}` already exists. "
"Please choose another Strategy Name.")
deploy_new_strategy(args['strategy'], new_path, args['template'])
else:
raise OperationalException("`new-strategy` requires --strategy to be set.")
def clean_ui_subdir(directory: Path):
if directory.is_dir():
logger.info("Removing UI directory content.")
for p in reversed(list(directory.glob('**/*'))): # iterate contents from leaves to root
if p.name in ('.gitkeep', 'fallback_file.html'):
continue
if p.is_file():
p.unlink()
elif p.is_dir():
p.rmdir()
def read_ui_version(dest_folder: Path) -> Optional[str]:
file = dest_folder / '.uiversion'
if not file.is_file():
return None
with file.open('r') as f:
return f.read()
def download_and_install_ui(dest_folder: Path, dl_url: str, version: str):
from io import BytesIO
from zipfile import ZipFile
logger.info(f"Downloading {dl_url}")
resp = requests.get(dl_url).content
dest_folder.mkdir(parents=True, exist_ok=True)
with ZipFile(BytesIO(resp)) as zf:
for fn in zf.filelist:
with zf.open(fn) as x:
destfile = dest_folder / fn.filename
if fn.is_dir():
destfile.mkdir(exist_ok=True)
else:
destfile.write_bytes(x.read())
with (dest_folder / '.uiversion').open('w') as f:
f.write(version)
def get_ui_download_url() -> Tuple[str, str]:
base_url = 'https://api.github.com/repos/freqtrade/frequi/'
# Get base UI Repo path
resp = requests.get(f"{base_url}releases")
resp.raise_for_status()
r = resp.json()
latest_version = r[0]['name']
assets = r[0].get('assets', [])
dl_url = ''
if assets and len(assets) > 0:
dl_url = assets[0]['browser_download_url']
# URL not found - try assets url
if not dl_url:
assets = r[0]['assets_url']
resp = requests.get(assets)
r = resp.json()
dl_url = r[0]['browser_download_url']
return dl_url, latest_version
def start_install_ui(args: Dict[str, Any]) -> None:
dest_folder = Path(__file__).parents[1] / 'rpc/api_server/ui/installed/'
# First make sure the assets are removed.
dl_url, latest_version = get_ui_download_url()
curr_version = read_ui_version(dest_folder)
if curr_version == latest_version and not args.get('erase_ui_only'):
logger.info(f"UI already up-to-date, FreqUI Version {curr_version}.")
return
clean_ui_subdir(dest_folder)
if args.get('erase_ui_only'):
logger.info("Erased UI directory content. Not downloading new version.")
else:
# Download a new version
download_and_install_ui(dest_folder, dl_url, latest_version)