Source code for galaxy.tool_util.parser.output_collection_def

""" This module define an abstract class for reasoning about Galaxy's
dataset collection after jobs are finished.
"""
from typing import List

from galaxy.util import asbool
from .util import is_dict

DEFAULT_EXTRA_FILENAME_PATTERN = r"primary_DATASET_ID_(?P<designation>[^_]+)_(?P<visible>[^_]+)_(?P<ext>[^_]+)(_(?P<dbkey>[^_]+))?"
DEFAULT_SORT_BY = "filename"
DEFAULT_SORT_COMP = "lexical"


# XML can describe custom patterns, but these literals describe named
# patterns that will be replaced.
NAMED_PATTERNS = {
    "__default__": DEFAULT_EXTRA_FILENAME_PATTERN,
    "__name__": r"(?P<name>.*)",
    "__designation__": r"(?P<designation>.*)",
    "__name_and_ext__": r"(?P<name>.*)\.(?P<ext>[^\.]+)?",
    "__designation_and_ext__": r"(?P<designation>.*)\.(?P<ext>[^\._]+)?",
}

INPUT_DBKEY_TOKEN = "__input__"
LEGACY_DEFAULT_DBKEY = None  # don't use __input__ for legacy default collection


[docs]def dataset_collector_descriptions_from_elem(elem, legacy=True):
    primary_dataset_elems = elem.findall("discover_datasets")
    num_discover_dataset_blocks = len(primary_dataset_elems)
    if num_discover_dataset_blocks == 0 and legacy:
        collectors = [DEFAULT_DATASET_COLLECTOR_DESCRIPTION]
    else:
        collectors = [dataset_collection_description(**e.attrib) for e in primary_dataset_elems]

    return _validate_collectors(collectors)


[docs]def dataset_collector_descriptions_from_output_dict(as_dict):
    discover_datasets_dicts = as_dict.get("discover_datasets", [])
    if is_dict(discover_datasets_dicts):
        discover_datasets_dicts = [discover_datasets_dicts]
    dataset_collector_descriptions = dataset_collector_descriptions_from_list(discover_datasets_dicts)
    return _validate_collectors(dataset_collector_descriptions)


def _validate_collectors(collectors):
    num_discover_dataset_blocks = len(collectors)
    if num_discover_dataset_blocks > 1:
        for collector in collectors:
            if collector.discover_via == "tool_provided_metadata":
                raise Exception("Cannot specify more than one discover dataset condition if any of them specify tool_provided_metadata.")

    return collectors


[docs]def dataset_collector_descriptions_from_list(discover_datasets_dicts):
    return list(map(lambda kwds: dataset_collection_description(**kwds), discover_datasets_dicts))


[docs]def dataset_collection_description(**kwargs):
    from_provided_metadata = asbool(kwargs.get("from_provided_metadata", False))
    discover_via = kwargs.get("discover_via", "tool_provided_metadata" if from_provided_metadata else "pattern")
    if discover_via == "tool_provided_metadata":
        for key in ["pattern", "sort_by"]:
            if kwargs.get(key):
                raise Exception("Cannot specify attribute [%s] if from_provided_metadata is True" % key)
        return ToolProvidedMetadataDatasetCollection(**kwargs)
    else:
        return FilePatternDatasetCollectionDescription(**kwargs)


[docs]class DatasetCollectionDescription:

[docs]    def __init__(self, **kwargs):
        self.default_dbkey = kwargs.get("dbkey", INPUT_DBKEY_TOKEN)
        self.default_ext = kwargs.get("ext", None)
        if self.default_ext is None and "format" in kwargs:
            self.default_ext = kwargs.get("format")
        self.default_visible = asbool(kwargs.get("visible", None))
        self.assign_primary_output = asbool(kwargs.get('assign_primary_output', False))
        self.directory = kwargs.get("directory", None)
        self.recurse = False

[docs]    def to_dict(self):
        return {
            'discover_via': self.discover_via,
            'dbkey': self.default_dbkey,
            'format': self.default_ext,
            'visible': self.default_visible,
            'assign_primary_output': self.assign_primary_output,
            'directory': self.directory,
            'recurse': self.recurse,
        }

    @property
    def discover_patterns(self) -> List[str]:
        return []


[docs]class ToolProvidedMetadataDatasetCollection(DatasetCollectionDescription):

    discover_via = "tool_provided_metadata"


[docs]class FilePatternDatasetCollectionDescription(DatasetCollectionDescription):

    discover_via = "pattern"

[docs]    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        pattern = kwargs.get("pattern", "__default__")
        self.recurse = asbool(kwargs.get("recurse", False))
        if pattern in NAMED_PATTERNS:
            pattern = NAMED_PATTERNS.get(pattern)
        self.pattern = pattern
        sort_by = kwargs.get("sort_by", DEFAULT_SORT_BY)
        if sort_by.startswith("reverse_"):
            self.sort_reverse = True
            sort_by = sort_by[len("reverse_"):]
        else:
            self.sort_reverse = False
        if "_" in sort_by:
            sort_comp, sort_by = sort_by.split("_", 1)
            assert sort_comp in ["lexical", "numeric"]
        else:
            sort_comp = DEFAULT_SORT_COMP
        assert sort_by in [
            "filename",
            "name",
            "designation",
            "dbkey"
        ]
        self.sort_key = sort_by
        self.sort_comp = sort_comp

[docs]    def to_dict(self):
        as_dict = super().to_dict()
        as_dict.update({
            "sort_key": self.sort_key,
            "sort_comp": self.sort_comp,
            "pattern": self.pattern,
            "recurse": self.recurse,
        })
        return as_dict

    @property
    def discover_patterns(self):
        return [self.pattern]


DEFAULT_DATASET_COLLECTOR_DESCRIPTION = FilePatternDatasetCollectionDescription(
    default_dbkey=LEGACY_DEFAULT_DBKEY,
)