--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/planemo/lib/python3.7/site-packages/galaxy/tool_util/provided_metadata.py	Fri Jul 31 00:32:28 2020 -0400
@@ -0,0 +1,236 @@
+import json
+import logging
+import os
+import re
+
+from galaxy.util import stringify_dictionary_keys
+
+log = logging.getLogger(__name__)
+
+
+def parse_tool_provided_metadata(meta_file, provided_metadata_style=None, job_wrapper=None):
+    """Return a ToolProvidedMetadata object for specified file path.
+
+    If meta_file is absent, return a NullToolProvidedMetadata. If provided_metadata_style is None
+    attempt to guess tool provided metadata type.
+    """
+    if not os.path.exists(meta_file):
+        return NullToolProvidedMetadata()
+    if provided_metadata_style is None:
+        provided_metadata_style = _guess_tool_provided_metadata_style(meta_file)
+
+    assert provided_metadata_style in ["legacy", "default"]
+
+    if provided_metadata_style == "legacy":
+        return LegacyToolProvidedMetadata(meta_file, job_wrapper=job_wrapper)
+    elif provided_metadata_style == "default":
+        return ToolProvidedMetadata(meta_file)
+
+
+def _guess_tool_provided_metadata_style(path):
+    try:
+        with open(path, "r") as f:
+            metadata = json.load(f)
+        metadata_type = metadata.get("type", None)
+        return "legacy" if metadata_type in ["dataset", "new_primary_dataset"] else "default"
+    except ValueError:
+        # Either empty or multiple JSON lines, either way we can safely treat
+        # it as legacy style.
+        return "legacy"
+
+
+class BaseToolProvidedMetadata(object):
+
+    def get_new_datasets(self, output_name):
+        """Find new datasets for dataset discovery for specified output.
+
+        Return a list of such datasets.
+
+        Called only in the context of discovering datasets when
+        discover_via="tool_provided_metadata" is defined in the tool.
+        """
+        return []
+
+    def has_failed_outputs(self):
+        """Determine if generation of any of the outputs failed.
+
+        If True, this method should also log information about at least the first such failed output.
+        """
+        return False
+
+    def get_new_dataset_meta_by_basename(self, output_name, basename):
+        """For a discovered dataset, get the corresponding metadata entry.
+
+        The discovery may have been from explicit listing in this file (returned
+        from get_new_datasets) or via file regex, either way the basename of the
+        file is used to index the fetching of the metadata entry.
+        """
+        return {}
+
+    def get_unnamed_outputs(self):
+        """Return unnamed outputs dataset introduced for upload 2.0.
+
+        Needs more formal specification but see output_collect for how destinations,
+        types, elements, etc... are consumed.
+        """
+        return []
+
+    def get_dataset_meta(self, output_name, dataset_id, dataset_uuid):
+        """Return primary dataset metadata for specified output.
+        """
+        return {}
+
+    def rewrite(self):
+        """Write metadata back to the file system.
+
+        If metadata has not changed via outputs specified as mutable, the
+        implementation class may opt to not re-write the file.
+        """
+        return None
+
+    def get_new_datasets_for_metadata_collection(self):
+        """Return all datasets tracked that are not explicit primary outputs.
+        """
+        return []
+
+
+class NullToolProvidedMetadata(BaseToolProvidedMetadata):
+    pass
+
+
+class LegacyToolProvidedMetadata(BaseToolProvidedMetadata):
+
+    def __init__(self, meta_file, job_wrapper=None):
+        self.meta_file = meta_file
+        self.tool_provided_job_metadata = []
+
+        with open(meta_file, 'r') as f:
+            for line in f:
+                try:
+                    line = stringify_dictionary_keys(json.loads(line))
+                    assert 'type' in line
+                except Exception:
+                    log.exception('(%s) Got JSON data from tool, but data is improperly formatted or no "type" key in data' % getattr(job_wrapper, "job_id", None))
+                    log.debug('Offending data was: %s' % line)
+                    continue
+                # Set the dataset id if it's a dataset entry and isn't set.
+                # This isn't insecure.  We loop the job's output datasets in
+                # the finish method, so if a tool writes out metadata for a
+                # dataset id that it doesn't own, it'll just be ignored.
+                dataset_id_not_specified = line['type'] == 'dataset' and 'dataset_id' not in line
+                if dataset_id_not_specified:
+                    dataset_basename = line['dataset']
+                    if job_wrapper:
+                        try:
+                            line['dataset_id'] = job_wrapper.get_output_file_id(dataset_basename)
+                        except KeyError:
+                            log.warning('(%s) Tool provided job dataset-specific metadata without specifying a dataset' % job_wrapper.job_id)
+                            continue
+                    else:
+                        match = re.match(r'(galaxy_)?dataset_(.*)\.dat', dataset_basename)
+                        if match is None:
+                            raise Exception("processing tool_provided_metadata (e.g. galaxy.json) entry with invalid dataset name [%s]" % dataset_basename)
+                        dataset_id = match.group(2)
+                        if dataset_id.isdigit():
+                            line['dataset_id'] = dataset_id
+                        else:
+                            line['dataset_uuid'] = dataset_id
+
+                self.tool_provided_job_metadata.append(line)
+
+    def get_dataset_meta(self, output_name, dataset_id, dataset_uuid):
+        for meta in self.tool_provided_job_metadata:
+            if meta['type'] == 'dataset' and 'dataset_id' in meta and int(meta['dataset_id']) == dataset_id:
+                return meta
+            if meta['type'] == 'dataset' and 'dataset_uuid' in meta and meta['dataset_uuid'] == dataset_uuid:
+                return meta
+        return {}
+
+    def get_new_dataset_meta_by_basename(self, output_name, basename):
+        for meta in self.tool_provided_job_metadata:
+            if meta['type'] == 'new_primary_dataset' and meta['filename'] == basename:
+                return meta
+
+    def get_new_datasets(self, output_name):
+        log.warning("Called get_new_datasets with legacy tool metadata provider - that is unimplemented.")
+        return []
+
+    def has_failed_outputs(self):
+        found_failed = False
+        for meta in self.tool_provided_job_metadata:
+            if meta.get("failed", False):
+                log.info("One or more tool outputs is marked as failed (%s)." % meta)
+                found_failed = True
+
+        return found_failed
+
+    def get_unnamed_outputs(self):
+        return []
+
+    def rewrite(self):
+        with open(self.meta_file, 'wt') as job_metadata_fh:
+            for meta in self.tool_provided_job_metadata:
+                job_metadata_fh.write("%s\n" % (json.dumps(meta)))
+
+    def get_new_datasets_for_metadata_collection(self):
+        for meta in self.tool_provided_job_metadata:
+            if meta['type'] == 'new_primary_dataset':
+                yield meta
+
+
+class ToolProvidedMetadata(BaseToolProvidedMetadata):
+
+    def __init__(self, meta_file):
+        self.meta_file = meta_file
+        with open(meta_file, 'r') as f:
+            self.tool_provided_job_metadata = json.load(f)
+
+    def get_dataset_meta(self, output_name, dataset_id, dataset_uuid):
+        return self.tool_provided_job_metadata.get(output_name, {})
+
+    def get_new_dataset_meta_by_basename(self, output_name, basename):
+        datasets = self.tool_provided_job_metadata.get(output_name, {}).get("datasets", [])
+        for meta in datasets:
+            if meta['filename'] == basename:
+                return meta
+
+    def get_new_datasets(self, output_name):
+        datasets = self.tool_provided_job_metadata.get(output_name, {}).get("datasets", [])
+        if not datasets:
+            elements = self.tool_provided_job_metadata.get(output_name, {}).get("elements", [])
+            if elements:
+                datasets = self._elements_to_datasets(elements)
+        return datasets
+
+    def _elements_to_datasets(self, elements, level=0):
+        for element in elements:
+            extra_kwds = {"identifier_%d" % level: element["name"]}
+            if "elements" in element:
+                for inner_element in self._elements_to_datasets(element["elements"], level=level + 1):
+                    dataset = extra_kwds.copy()
+                    dataset.update(inner_element)
+                    yield dataset
+            else:
+                dataset = extra_kwds
+                extra_kwds.update(element)
+                yield extra_kwds
+
+    def has_failed_outputs(self):
+        found_failed = False
+        for output_name, meta in self.tool_provided_job_metadata.items():
+            if output_name == "__unnamed_outputs":
+                continue
+
+            if meta.get("failed", False):
+                log.info("One or more tool outputs is marked as failed (%s)." % meta)
+                found_failed = True
+
+        return found_failed
+
+    def get_unnamed_outputs(self):
+        log.debug("unnamed outputs [%s]" % self.tool_provided_job_metadata)
+        return self.tool_provided_job_metadata.get("__unnamed_outputs", [])
+
+    def rewrite(self):
+        with open(self.meta_file, 'wt') as job_metadata_fh:
+            json.dump(self.tool_provided_job_metadata, job_metadata_fh)