class ConfigLoaderImpl(ConfigLoader):
"""
Configuration loader
"""
def __init__(
self,
config_search_path: ConfigSearchPath,
) -> None:
self.config_search_path = config_search_path
self.repository = ConfigRepository(
config_search_path=config_search_path)
@staticmethod
def validate_sweep_overrides_legal(
overrides: List[Override],
run_mode: RunMode,
from_shell: bool,
) -> None:
for x in overrides:
if x.is_sweep_override():
if run_mode == RunMode.MULTIRUN:
if x.is_hydra_override():
raise ConfigCompositionException(
f"Sweeping over Hydra's configuration is not supported : '{x.input_line}'"
)
elif run_mode == RunMode.RUN:
if x.value_type == ValueType.SIMPLE_CHOICE_SWEEP:
vals = "value1,value2"
if from_shell:
example_override = f"key=\\'{vals}\\'"
else:
example_override = f"key='{vals}'"
msg = dedent(f"""\
Ambiguous value for argument '{x.input_line}'
1. To use it as a list, use key=[value1,value2]
2. To use it as string, quote the value: {example_override}
3. To sweep over it, add --multirun to your command line"""
)
raise ConfigCompositionException(msg)
else:
raise ConfigCompositionException(
f"Sweep parameters '{x.input_line}' requires --multirun"
)
else:
assert False
def _missing_config_error(self, config_name: Optional[str], msg: str,
with_search_path: bool) -> None:
def add_search_path() -> str:
descs = []
for src in self.repository.get_sources():
if src.provider != "schema":
descs.append(f"\t{repr(src)}")
lines = "\n".join(descs)
if with_search_path:
return msg + "\nSearch path:" + f"\n{lines}"
else:
return msg
raise MissingConfigException(missing_cfg_file=config_name,
message=add_search_path())
def ensure_main_config_source_available(self) -> None:
for source in self.get_sources():
# if specified, make sure main config search path exists
if source.provider == "main":
if not source.available():
if source.scheme() == "pkg":
if source.path == "":
msg = (
"Primary config module is empty."
"\nPython requires resources to be in a module with an __init__.py file"
)
else:
msg = (
f"Primary config module '{source.path}' not found."
f"\nCheck that it's correct and contains an __init__.py file"
)
else:
msg = (
f"Primary config directory not found."
f"\nCheck that the config directory '{source.path}' exists and readable"
)
self._missing_config_error(config_name=None,
msg=msg,
with_search_path=False)
def load_configuration(
self,
config_name: Optional[str],
overrides: List[str],
run_mode: RunMode,
from_shell: bool = True,
) -> DictConfig:
try:
return self._load_configuration_impl(
config_name=config_name,
overrides=overrides,
run_mode=run_mode,
from_shell=from_shell,
)
except OmegaConfBaseException as e:
raise ConfigCompositionException().with_traceback(
sys.exc_info()[2]) from e
def _process_config_searchpath(
self,
config_name: Optional[str],
parsed_overrides: List[Override],
repo: CachingConfigRepository,
) -> None:
if config_name is not None:
loaded = repo.load_config(config_path=config_name)
primary_config: Container
if loaded is None:
primary_config = OmegaConf.create()
else:
primary_config = loaded.config
else:
primary_config = OmegaConf.create()
if not OmegaConf.is_dict(primary_config):
raise ConfigCompositionException(
f"primary config '{config_name}' must be a DictConfig, got {type(primary_config).__name__}"
)
def is_searchpath_override(v: Override) -> bool:
return v.get_key_element() == "hydra.searchpath"
override = None
for v in parsed_overrides:
if is_searchpath_override(v):
override = v.value()
break
searchpath = OmegaConf.select(primary_config, "hydra.searchpath")
if override is not None:
provider = "hydra.searchpath in command-line"
searchpath = override
else:
provider = "hydra.searchpath in main"
def _err() -> None:
raise ConfigCompositionException(
f"hydra.searchpath must be a list of strings. Got: {searchpath}"
)
if searchpath is None:
return
# validate hydra.searchpath.
# Note that we cannot rely on OmegaConf validation here because we did not yet merge with the Hydra schema node
if not isinstance(searchpath, MutableSequence):
_err()
for v in searchpath:
if not isinstance(v, str):
_err()
new_csp = copy.deepcopy(self.config_search_path)
schema = new_csp.get_path().pop(-1)
assert schema.provider == "schema"
for sp in searchpath:
new_csp.append(provider=provider, path=sp)
new_csp.append("schema", "structured://")
repo.initialize_sources(new_csp)
for source in repo.get_sources():
if not source.available():
warnings.warn(
category=UserWarning,
message=
f"provider={source.provider}, path={source.path} is not available.",
)
def _load_configuration_impl(
self,
config_name: Optional[str],
overrides: List[str],
run_mode: RunMode,
from_shell: bool = True,
) -> DictConfig:
from hydra import __version__
self.ensure_main_config_source_available()
caching_repo = CachingConfigRepository(self.repository)
parser = OverridesParser.create()
parsed_overrides = parser.parse_overrides(overrides=overrides)
self._process_config_searchpath(config_name, parsed_overrides,
caching_repo)
self.validate_sweep_overrides_legal(overrides=parsed_overrides,
run_mode=run_mode,
from_shell=from_shell)
defaults_list = create_defaults_list(
repo=caching_repo,
config_name=config_name,
overrides_list=parsed_overrides,
prepend_hydra=True,
skip_missing=run_mode == RunMode.MULTIRUN,
)
config_overrides = defaults_list.config_overrides
cfg = self._compose_config_from_defaults_list(
defaults=defaults_list.defaults, repo=caching_repo)
# Set config root to struct mode.
# Note that this will close any dictionaries (including dicts annotated as Dict[K, V].
# One must use + to add new fields to them.
OmegaConf.set_struct(cfg, True)
# The Hydra node should not be read-only even if the root config is read-only.
OmegaConf.set_readonly(cfg.hydra, False)
# Apply command line overrides after enabling strict flag
ConfigLoaderImpl._apply_overrides_to_config(config_overrides, cfg)
app_overrides = []
for override in parsed_overrides:
if override.is_hydra_override():
cfg.hydra.overrides.hydra.append(override.input_line)
else:
cfg.hydra.overrides.task.append(override.input_line)
app_overrides.append(override)
with open_dict(cfg.hydra):
cfg.hydra.runtime.choices.update(
defaults_list.overrides.known_choices)
for key in cfg.hydra.job.env_copy:
cfg.hydra.job.env_set[key] = os.environ[key]
cfg.hydra.runtime.version = __version__
cfg.hydra.runtime.cwd = os.getcwd()
cfg.hydra.runtime.config_sources = [
ConfigSourceInfo(path=x.path,
schema=x.scheme(),
provider=x.provider)
for x in caching_repo.get_sources()
]
if "name" not in cfg.hydra.job:
cfg.hydra.job.name = JobRuntime().get("name")
cfg.hydra.job.override_dirname = get_overrides_dirname(
overrides=app_overrides,
kv_sep=cfg.hydra.job.config.override_dirname.kv_sep,
item_sep=cfg.hydra.job.config.override_dirname.item_sep,
exclude_keys=cfg.hydra.job.config.override_dirname.exclude_keys,
)
cfg.hydra.job.config_name = config_name
return cfg
def load_sweep_config(self, master_config: DictConfig,
sweep_overrides: List[str]) -> DictConfig:
# Recreate the config for this sweep instance with the appropriate overrides
overrides = OmegaConf.to_container(master_config.hydra.overrides.hydra)
assert isinstance(overrides, list)
overrides = overrides + sweep_overrides
sweep_config = self.load_configuration(
config_name=master_config.hydra.job.config_name,
overrides=overrides,
run_mode=RunMode.RUN,
)
with open_dict(sweep_config):
sweep_config.hydra.runtime.merge_with(master_config.hydra.runtime)
# Partial copy of master config cache, to ensure we get the same resolved values for timestamps
cache: Dict[str, Any] = defaultdict(dict, {})
cache_master_config = OmegaConf.get_cache(master_config)
for k in ["now"]:
if k in cache_master_config:
cache[k] = cache_master_config[k]
OmegaConf.set_cache(sweep_config, cache)
return sweep_config
def get_search_path(self) -> ConfigSearchPath:
return self.config_search_path
@staticmethod
def _apply_overrides_to_config(overrides: List[Override],
cfg: DictConfig) -> None:
for override in overrides:
if override.package is not None:
raise ConfigCompositionException(
f"Override {override.input_line} looks like a config group override, "
f"but config group '{override.key_or_group}' does not exist."
)
key = override.key_or_group
value = override.value()
try:
if override.is_delete():
config_val = OmegaConf.select(cfg,
key,
throw_on_missing=False)
if config_val is None:
raise ConfigCompositionException(
f"Could not delete from config. '{override.key_or_group}' does not exist."
)
elif value is not None and value != config_val:
raise ConfigCompositionException(
f"Could not delete from config."
f" The value of '{override.key_or_group}' is {config_val} and not {value}."
)
last_dot = key.rfind(".")
with open_dict(cfg):
if last_dot == -1:
del cfg[key]
else:
node = OmegaConf.select(cfg, key[0:last_dot])
del node[key[last_dot + 1:]]
elif override.is_add():
if OmegaConf.select(
cfg, key,
throw_on_missing=False) is None or isinstance(
value, (dict, list)):
OmegaConf.update(cfg,
key,
value,
merge=True,
force_add=True)
else:
assert override.input_line is not None
raise ConfigCompositionException(
dedent(f"""\
Could not append to config. An item is already at '{override.key_or_group}'.
Either remove + prefix: '{override.input_line[1:]}'
Or add a second + to add or override '{override.key_or_group}': '+{override.input_line}'
"""))
elif override.is_force_add():
OmegaConf.update(cfg,
key,
value,
merge=True,
force_add=True)
else:
try:
OmegaConf.update(cfg, key, value, merge=True)
except (ConfigAttributeError, ConfigKeyError) as ex:
raise ConfigCompositionException(
f"Could not override '{override.key_or_group}'."
f"\nTo append to your config use +{override.input_line}"
) from ex
except OmegaConfBaseException as ex:
raise ConfigCompositionException(
f"Error merging override {override.input_line}"
).with_traceback(sys.exc_info()[2]) from ex
def _load_single_config(self, default: ResultDefault,
repo: IConfigRepository) -> ConfigResult:
config_path = default.config_path
assert config_path is not None
ret = repo.load_config(config_path=config_path)
assert ret is not None
if not OmegaConf.is_config(ret.config):
raise ValueError(
f"Config {config_path} must be an OmegaConf config, got {type(ret.config).__name__}"
)
if not ret.is_schema_source:
schema = None
try:
schema_source = repo.get_schema_source()
cname = ConfigSource._normalize_file_name(filename=config_path)
schema = schema_source.load_config(cname)
except ConfigLoadError:
# schema not found, ignore
pass
if schema is not None:
try:
url = "https://hydra.cc/docs/next/upgrades/1.0_to_1.1/automatic_schema_matching"
if "defaults" in schema.config:
raise ConfigCompositionException(
dedent(f"""\
'{config_path}' is validated against ConfigStore schema with the same name.
This behavior is deprecated in Hydra 1.1 and will be removed in Hydra 1.2.
In addition, the automatically matched schema contains a defaults list.
This combination is no longer supported.
See {url} for migration instructions."""))
else:
warnings.warn(
dedent(f"""\
'{config_path}' is validated against ConfigStore schema with the same name.
This behavior is deprecated in Hydra 1.1 and will be removed in Hydra 1.2.
See {url} for migration instructions."""),
category=UserWarning,
stacklevel=11,
)
# if primary config has a hydra node, remove it during validation and add it back.
# This allows overriding Hydra's configuration without declaring it's node
# in the schema of every primary config
hydra = None
hydra_config_group = (
default.config_path is not None
and default.config_path.startswith("hydra/"))
config = ret.config
if (default.primary and isinstance(config, DictConfig)
and "hydra" in config and not hydra_config_group):
hydra = config.pop("hydra")
merged = OmegaConf.merge(schema.config, config)
assert isinstance(merged, DictConfig)
if hydra is not None:
with open_dict(merged):
merged.hydra = hydra
ret.config = merged
except OmegaConfBaseException as e:
raise ConfigCompositionException(
f"Error merging '{config_path}' with schema") from e
assert isinstance(merged, DictConfig)
res = self._embed_result_config(ret, default.package)
if (not default.primary and config_path != "hydra/config"
and isinstance(res.config, DictConfig) and OmegaConf.select(
res.config, "hydra.searchpath") is not None):
raise ConfigCompositionException(
f"In '{config_path}': Overriding hydra.searchpath is only supported from the primary config"
)
return res
@staticmethod
def _embed_result_config(ret: ConfigResult,
package_override: Optional[str]) -> ConfigResult:
package = ret.header["package"]
if package_override is not None:
package = package_override
if package is not None and package != "":
cfg = OmegaConf.create()
OmegaConf.update(cfg, package, ret.config, merge=False)
ret = copy.copy(ret)
ret.config = cfg
return ret
def list_groups(self, parent_name: str) -> List[str]:
return self.get_group_options(group_name=parent_name,
results_filter=ObjectType.GROUP)
def get_group_options(
self,
group_name: str,
results_filter: Optional[ObjectType] = ObjectType.CONFIG
) -> List[str]:
return self.repository.get_group_options(group_name, results_filter)
def _compose_config_from_defaults_list(
self,
defaults: List[ResultDefault],
repo: IConfigRepository,
) -> DictConfig:
cfg = OmegaConf.create()
with flag_override(cfg, "no_deepcopy_set_nodes", True):
for default in defaults:
loaded = self._load_single_config(default=default, repo=repo)
try:
cfg.merge_with(loaded.config)
except ValidationError as e:
raise ConfigCompositionException(
f"In '{default.config_path}': Validation error while composing config:\n{e}"
).with_traceback(sys.exc_info()[2])
return cfg
def get_sources(self) -> List[ConfigSource]:
return self.repository.get_sources()
def compute_defaults_list(
self,
config_name: Optional[str],
overrides: List[str],
run_mode: RunMode,
) -> DefaultsList:
parser = OverridesParser.create()
parsed_overrides = parser.parse_overrides(overrides=overrides)
repo = CachingConfigRepository(self.repository)
self._process_config_searchpath(config_name, parsed_overrides, repo)
defaults_list = create_defaults_list(
repo=repo,
config_name=config_name,
overrides_list=parsed_overrides,
prepend_hydra=True,
skip_missing=run_mode == RunMode.MULTIRUN,
)
return defaults_list
class ConfigLoaderImpl(ConfigLoader):
"""
Configuration loader
"""
def __init__(
self,
config_search_path: ConfigSearchPath,
default_strict: Optional[bool] = True,
) -> None:
self.default_strict = default_strict
self.config_search_path = config_search_path
self.repository = ConfigRepository(config_search_path=config_search_path)
@staticmethod
def validate_sweep_overrides_legal(
overrides: List[Override],
run_mode: RunMode,
from_shell: bool,
) -> None:
for x in overrides:
if x.is_sweep_override():
if run_mode == RunMode.MULTIRUN:
if x.is_hydra_override():
raise ConfigCompositionException(
f"Sweeping over Hydra's configuration is not supported : '{x.input_line}'"
)
elif run_mode == RunMode.RUN:
if x.value_type == ValueType.SIMPLE_CHOICE_SWEEP:
vals = "value1,value2"
if from_shell:
example_override = f"key=\\'{vals}\\'"
else:
example_override = f"key='{vals}'"
msg = dedent(
f"""\
Ambiguous value for argument '{x.input_line}'
1. To use it as a list, use key=[value1,value2]
2. To use it as string, quote the value: {example_override}
3. To sweep over it, add --multirun to your command line"""
)
raise ConfigCompositionException(msg)
else:
raise ConfigCompositionException(
f"Sweep parameters '{x.input_line}' requires --multirun"
)
else:
assert False
def _missing_config_error(
self, config_name: Optional[str], msg: str, with_search_path: bool
) -> None:
def add_search_path() -> str:
descs = []
for src in self.repository.get_sources():
if src.provider != "schema":
descs.append(f"\t{repr(src)}")
lines = "\n".join(descs)
if with_search_path:
return msg + "\nSearch path:" + f"\n{lines}"
else:
return msg
raise MissingConfigException(
missing_cfg_file=config_name, message=add_search_path()
)
def ensure_main_config_source_available(self) -> None:
for source in self.get_sources():
# if specified, make sure main config search path exists
if source.provider == "main":
if not source.available():
if source.scheme() == "pkg":
if source.path == "":
msg = (
"Primary config module is empty."
"\nPython requires resources to be in a module with an __init__.py file"
)
else:
msg = (
f"Primary config module '{source.path}' not found."
f"\nCheck that it's correct and contains an __init__.py file"
)
else:
msg = (
f"Primary config directory not found."
f"\nCheck that the config directory '{source.path}' exists and readable"
)
self._missing_config_error(
config_name=None, msg=msg, with_search_path=False
)
def load_configuration(
self,
config_name: Optional[str],
overrides: List[str],
run_mode: RunMode,
strict: Optional[bool] = None,
from_shell: bool = True,
) -> DictConfig:
try:
return self._load_configuration_impl(
config_name=config_name,
overrides=overrides,
run_mode=run_mode,
strict=strict,
from_shell=from_shell,
)
except OmegaConfBaseException as e:
raise ConfigCompositionException().with_traceback(sys.exc_info()[2]) from e
def _load_configuration_impl(
self,
config_name: Optional[str],
overrides: List[str],
run_mode: RunMode,
strict: Optional[bool] = None,
from_shell: bool = True,
) -> DictConfig:
self.ensure_main_config_source_available()
caching_repo = CachingConfigRepository(self.repository)
if strict is None:
strict = self.default_strict
parser = OverridesParser.create()
parsed_overrides = parser.parse_overrides(overrides=overrides)
self.validate_sweep_overrides_legal(
overrides=parsed_overrides, run_mode=run_mode, from_shell=from_shell
)
defaults_list = create_defaults_list(
repo=caching_repo,
config_name=config_name,
overrides_list=parser.parse_overrides(overrides=overrides),
prepend_hydra=True,
skip_missing=run_mode == RunMode.MULTIRUN,
)
config_overrides = defaults_list.config_overrides
cfg, composition_trace = self._compose_config_from_defaults_list(
defaults=defaults_list.defaults, repo=caching_repo
)
OmegaConf.set_struct(cfg, strict)
OmegaConf.set_readonly(cfg.hydra, False)
# Apply command line overrides after enabling strict flag
ConfigLoaderImpl._apply_overrides_to_config(config_overrides, cfg)
app_overrides = []
for override in parsed_overrides:
if override.is_hydra_override():
cfg.hydra.overrides.hydra.append(override.input_line)
else:
cfg.hydra.overrides.task.append(override.input_line)
app_overrides.append(override)
# TODO: should this open_dict be required given that choices is a Dict?
with open_dict(cfg.hydra.choices):
cfg.hydra.choices.update(defaults_list.overrides.known_choices)
with open_dict(cfg.hydra):
from hydra import __version__
cfg.hydra.runtime.version = __version__
cfg.hydra.runtime.cwd = os.getcwd()
cfg.hydra.composition_trace = composition_trace
if "name" not in cfg.hydra.job:
cfg.hydra.job.name = JobRuntime().get("name")
cfg.hydra.job.override_dirname = get_overrides_dirname(
overrides=app_overrides,
kv_sep=cfg.hydra.job.config.override_dirname.kv_sep,
item_sep=cfg.hydra.job.config.override_dirname.item_sep,
exclude_keys=cfg.hydra.job.config.override_dirname.exclude_keys,
)
cfg.hydra.job.config_name = config_name
for key in cfg.hydra.job.env_copy:
cfg.hydra.job.env_set[key] = os.environ[key]
return cfg
def load_sweep_config(
self, master_config: DictConfig, sweep_overrides: List[str]
) -> DictConfig:
# Recreate the config for this sweep instance with the appropriate overrides
overrides = OmegaConf.to_container(master_config.hydra.overrides.hydra)
assert isinstance(overrides, list)
overrides = overrides + sweep_overrides
sweep_config = self.load_configuration(
config_name=master_config.hydra.job.config_name,
strict=self.default_strict,
overrides=overrides,
run_mode=RunMode.RUN,
)
with open_dict(sweep_config):
sweep_config.hydra.runtime.merge_with(master_config.hydra.runtime)
# Partial copy of master config cache, to ensure we get the same resolved values for timestamps
cache: Dict[str, Any] = defaultdict(dict, {})
cache_master_config = OmegaConf.get_cache(master_config)
for k in ["now"]:
if k in cache_master_config:
cache[k] = cache_master_config[k]
OmegaConf.set_cache(sweep_config, cache)
return sweep_config
def get_search_path(self) -> ConfigSearchPath:
return self.config_search_path
@staticmethod
def _apply_overrides_to_config(overrides: List[Override], cfg: DictConfig) -> None:
for override in overrides:
if override.package is not None:
raise ConfigCompositionException(
f"Override {override.input_line} looks like a config group override, "
f"but config group '{override.key_or_group}' does not exist."
)
key = override.key_or_group
value = override.value()
try:
if override.is_delete():
config_val = OmegaConf.select(cfg, key, throw_on_missing=False)
if config_val is None:
raise ConfigCompositionException(
f"Could not delete from config. '{override.key_or_group}' does not exist."
)
elif value is not None and value != config_val:
raise ConfigCompositionException(
f"Could not delete from config."
f" The value of '{override.key_or_group}' is {config_val} and not {value}."
)
last_dot = key.rfind(".")
with open_dict(cfg):
if last_dot == -1:
del cfg[key]
else:
node = OmegaConf.select(cfg, key[0:last_dot])
del node[key[last_dot + 1 :]]
elif override.is_add():
if OmegaConf.select(
cfg, key, throw_on_missing=False
) is None or isinstance(value, (dict, list)):
with open_dict(cfg):
OmegaConf.update(cfg, key, value, merge=True)
else:
raise ConfigCompositionException(
f"Could not append to config. An item is already at '{override.key_or_group}'."
)
else:
try:
OmegaConf.update(cfg, key, value, merge=True)
except (ConfigAttributeError, ConfigKeyError) as ex:
raise ConfigCompositionException(
f"Could not override '{override.key_or_group}'."
f"\nTo append to your config use +{override.input_line}"
) from ex
except OmegaConfBaseException as ex:
raise ConfigCompositionException(
f"Error merging override {override.input_line}"
) from ex
def _load_single_config(
self, default: ResultDefault, repo: IConfigRepository
) -> Tuple[ConfigResult, LoadTrace]:
config_path = default.config_path
assert config_path is not None
ret = repo.load_config(config_path=config_path)
assert ret is not None
if not isinstance(ret.config, DictConfig):
raise ValueError(
f"Config {config_path} must be a Dictionary, got {type(ret).__name__}"
)
if not ret.is_schema_source:
schema = None
try:
schema_source = repo.get_schema_source()
cname = ConfigSource._normalize_file_name(filename=config_path)
schema = schema_source.load_config(cname)
except ConfigLoadError:
# schema not found, ignore
pass
if schema is not None:
try:
# TODO: deprecate schema matching in favor of extension via Defaults List
# if primary config has a hydra node, remove it during validation and add it back.
# This allows overriding Hydra's configuration without declaring it's node
# in the schema of every primary config
hydra = None
hydra_config_group = (
default.config_path is not None
and default.config_path.startswith("hydra/")
)
if (
default.primary
and "hydra" in ret.config
and not hydra_config_group
):
hydra = ret.config.pop("hydra")
merged = OmegaConf.merge(schema.config, ret.config)
assert isinstance(merged, DictConfig)
if hydra is not None:
with open_dict(merged):
merged.hydra = hydra
ret.config = merged
except OmegaConfBaseException as e:
raise ConfigCompositionException(
f"Error merging '{config_path}' with schema"
) from e
assert isinstance(merged, DictConfig)
trace = LoadTrace(
config_path=default.config_path,
package=default.package,
parent=default.parent,
is_self=default.is_self,
search_path=ret.path,
provider=ret.provider,
)
ret = self._embed_result_config(ret, default.package)
return ret, trace
@staticmethod
def _embed_result_config(
ret: ConfigResult, package_override: Optional[str]
) -> ConfigResult:
package = ret.header["package"]
if package_override is not None:
package = package_override
if package is not None and package != "":
cfg = OmegaConf.create()
OmegaConf.update(cfg, package, ret.config, merge=False)
ret = copy.copy(ret)
ret.config = cfg
return ret
def list_groups(self, parent_name: str) -> List[str]:
return self.get_group_options(
group_name=parent_name, results_filter=ObjectType.GROUP
)
def get_group_options(
self, group_name: str, results_filter: Optional[ObjectType] = ObjectType.CONFIG
) -> List[str]:
return self.repository.get_group_options(group_name, results_filter)
def _compose_config_from_defaults_list(
self,
defaults: List[ResultDefault],
repo: IConfigRepository,
) -> Tuple[DictConfig, List[LoadTrace]]:
composition_trace = []
cfg = OmegaConf.create()
for default in defaults:
loaded, trace = self._load_single_config(default=default, repo=repo)
try:
merged = OmegaConf.merge(cfg, loaded.config)
except ValidationError as e:
raise ConfigCompositionException(
f"In '{default.config_path}': Validation error while composing config:\n{e}"
).with_traceback(sys.exc_info()[2])
assert isinstance(merged, DictConfig)
cfg = merged
assert cfg is not None
composition_trace.append(trace)
# This is primarily cosmetic
cfg._metadata.ref_type = cfg._metadata.object_type
return cfg, composition_trace
def get_sources(self) -> List[ConfigSource]:
return self.repository.get_sources()
def compute_defaults_list(
self,
config_name: Optional[str],
overrides: List[str],
run_mode: RunMode,
) -> DefaultsList:
parser = OverridesParser.create()
repo = CachingConfigRepository(self.repository)
defaults_list = create_defaults_list(
repo=repo,
config_name=config_name,
overrides_list=parser.parse_overrides(overrides=overrides),
prepend_hydra=True,
skip_missing=run_mode == RunMode.MULTIRUN,
)
return defaults_list