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176 | class Cli(Typer):
"""
Custom Typer object that:
- validates a command parameters before executing it
- accepts a configuration file describing the parameters
- automatically instantiates parameters given a dictionary when type hinted
"""
def command( # noqa
self,
name,
*,
cls: Optional[Type[TyperCommand]] = None,
context_settings: Optional[Dict[Any, Any]] = None,
help: Optional[str] = None,
epilog: Optional[str] = None,
short_help: Optional[str] = None,
options_metavar: str = "[OPTIONS]",
add_help_option: bool = True,
no_args_is_help: bool = False,
hidden: bool = False,
deprecated: bool = False,
# Rich settings
rich_help_panel: Union[str, None] = Default(None),
registry: Any = None,
) -> Callable[[CommandFunctionType], CommandFunctionType]:
typer_command = super().command(
name=name,
cls=cls,
help=help,
epilog=epilog,
short_help=short_help,
options_metavar=options_metavar,
add_help_option=add_help_option,
no_args_is_help=no_args_is_help,
hidden=hidden,
deprecated=deprecated,
rich_help_panel=rich_help_panel,
context_settings={
**(context_settings or {}),
"ignore_unknown_options": True,
"allow_extra_args": True,
},
)
def wrapper(fn):
validated = validate_arguments(fn)
@typer_command
def command(ctx: Context, config: Optional[List[Path]] = None):
config_path = config
has_meta = _fn_has_meta(fn)
if config_path:
config, name_from_file = merge_from_disk(config_path)
else:
config = Config({name: {}})
model_fields = (
validated.model.model_fields
if hasattr(validated.model, "model_fields")
else validated.model.__fields__
)
for k, v in parse_overrides(ctx.args).items():
if "." not in k:
parts = (name, k)
else:
parts = k.split(".")
if parts[0] in model_fields and parts[0] not in config:
parts = (name, *parts)
current = config
if parts[0] not in current:
raise Exception(
f"{k} does not match any existing section in config"
)
for part in parts[:-1]:
current = current.setdefault(part, Config())
current[parts[-1]] = v
try:
resolved_config = Config(config[name]).resolve(
registry=registry, root=config
)
default_seed = model_fields.get("seed")
if default_seed is not None:
default_seed = default_seed.get_default()
seed = config.get(name, {}).get("seed", default_seed)
if seed is not None:
set_seed(seed)
if has_meta:
config_meta = dict(
config_path=config_path,
resolved_config=resolved_config,
unresolved_config=config,
)
return validated(
**resolved_config,
config_meta=config_meta,
)
else:
return validated(**resolved_config)
except (LegacyValidationError, ConfitValidationError) as e:
e.raw_errors = patch_errors(
e.raw_errors,
(name,),
)
if is_debug() or e.__cause__ is not None:
raise e
try:
import rich
console = rich.console.Console(stderr=True)
console.print("Validation error:", style="red", end=" ")
console.print(str(e))
except ImportError: # pragma: no cover
print("Validation error:", file=sys.stderr, end=" ")
print(str(e), file=sys.stderr)
sys.exit(1)
except KeyboardInterrupt as e: # pragma: no cover
raise Exception("Interrupted by user") from e
return validated
return wrapper
|