def deploy_new_config(config_path: Path, selections: Dict[str, Any]) -> None:
"""
Applies selections to the template and writes the result to config_path
:param config_path: Path object for new config file. Should not exist yet
:param selecions: Dict containing selections taken by the user.
"""
from jinja2.exceptions import TemplateNotFound
try:
exchange_template = MAP_EXCHANGE_CHILDCLASS.get(
selections['exchange_name'], selections['exchange_name'])
selections['exchange'] = render_template(
templatefile=f"subtemplates/exchange_{exchange_template}.j2",
arguments=selections
)
except TemplateNotFound:
selections['exchange'] = render_template(
templatefile="subtemplates/exchange_generic.j2",
arguments=selections
)
config_text = render_template(templatefile='base_config.json.j2',
arguments=selections)
logger.info(f"Writing config to `{config_path}`.")
config_path.write_text(config_text)
def deploy_new_hyperopt(hyperopt_name: str, hyperopt_path: Path,
subtemplate: str) -> None:
"""
Deploys a new hyperopt template to hyperopt_path
"""
buy_guards = render_template(
templatefile=f"subtemplates/hyperopt_buy_guards_{subtemplate}.j2", )
sell_guards = render_template(
templatefile=f"subtemplates/hyperopt_sell_guards_{subtemplate}.j2", )
buy_space = render_template(
templatefile=f"subtemplates/hyperopt_buy_space_{subtemplate}.j2", )
sell_space = render_template(
templatefile=f"subtemplates/hyperopt_sell_space_{subtemplate}.j2", )
strategy_text = render_template(templatefile='base_hyperopt.py.j2',
arguments={
"hyperopt": hyperopt_name,
"buy_guards": buy_guards,
"sell_guards": sell_guards,
"buy_space": buy_space,
"sell_space": sell_space,
})
logger.info(f"Writing hyperopt to `{hyperopt_path}`.")
hyperopt_path.write_text(strategy_text)
def deploy_new_strategy(strategy_name: str, strategy_path: Path,
subtemplate: str) -> None:
"""
Deploy new strategy from template to strategy_path
"""
indicators = render_template(
templatefile=f"subtemplates/indicators_{subtemplate}.j2", )
buy_trend = render_template(
templatefile=f"subtemplates/buy_trend_{subtemplate}.j2", )
sell_trend = render_template(
templatefile=f"subtemplates/sell_trend_{subtemplate}.j2", )
plot_config = render_template(
templatefile=f"subtemplates/plot_config_{subtemplate}.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,
})
logger.info(f"Writing strategy to `{strategy_path}`.")
strategy_path.write_text(strategy_text)
def test_render_template_fallback(mocker):
from jinja2.exceptions import TemplateNotFound
with pytest.raises(TemplateNotFound):
val = render_template(
templatefile='subtemplates/indicators_does-not-exist.j2', )
val = render_template_with_fallback(
templatefile='subtemplates/indicators_does-not-exist.j2',
templatefallbackfile='subtemplates/indicators_minimal.j2',
)
assert isinstance(val, str)
assert 'if self.dp' in val
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=f"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)
