def get_step_by_version(self, step_type: Union[Type, Text], version: Text):
"""
Gets a Step object by version. There might be many objects of a
particular Step registered in many pipelines. This function just
returns the first configuration that it matches.
Args:
step_type: either a string specifying full path to the step or a
class path.
version: either sha pin or standard ZenML version pin.
"""
from zenml.utils import source_utils
from zenml.steps.base_step import BaseStep
type_str = source_utils.get_module_path_from_class(step_type)
for file_path in self.get_pipeline_file_paths():
c = yaml_utils.read_yaml(file_path)
for step_name, step_config in c[keys.GlobalKeys.PIPELINE][
keys.PipelineKeys.STEPS].items():
# Get version from source
class_ = source_utils.get_class_path_from_source(
step_config[keys.StepKeys.SOURCE])
source_version = source_utils.get_version_from_source(
step_config[keys.StepKeys.SOURCE])
if class_ == type_str and version == source_version:
return BaseStep.from_config(step_config)
def get_step_versions(self):
"""List all registered steps in repository"""
from zenml.utils import source_utils
steps_dict = {}
for file_path in self.get_pipeline_file_paths():
c = yaml_utils.read_yaml(file_path)
for step_name, step_config in c[keys.GlobalKeys.STEPS].items():
# Get version from source
version = source_utils.get_version_from_source(
step_config[keys.StepKeys.SOURCE])
class_ = source_utils.get_class_path_from_source(
step_config[keys.StepKeys.SOURCE])
# Add to set of versions
if class_ in steps_dict:
steps_dict[class_].add(version)
else:
steps_dict[class_] = {version}
return steps_dict