diff --git a/swh/indexer/metadata.py b/swh/indexer/metadata.py index 83331f2..129a447 100644 --- a/swh/indexer/metadata.py +++ b/swh/indexer/metadata.py @@ -1,348 +1,357 @@ # Copyright (C) 2017-2018 The Software Heritage developers # See the AUTHORS file at the top-level directory of this distribution # License: GNU General Public License version 3, or any later version # See top-level LICENSE file for more information from copy import deepcopy from swh.core.utils import grouper from swh.indexer.indexer import ContentIndexer, RevisionIndexer, OriginIndexer from swh.indexer.origin_head import OriginHeadIndexer from swh.indexer.metadata_dictionary import MAPPINGS from swh.indexer.metadata_detector import detect_metadata from swh.indexer.metadata_detector import extract_minimal_metadata_dict from swh.indexer.storage import INDEXER_CFG_KEY from swh.model import hashutil REVISION_GET_BATCH_SIZE = 10 +ORIGIN_GET_BATCH_SIZE = 10 + + +def call_with_batches(f, args, batch_size): + """Calls a function with batches of args, and concatenates the results. + """ + groups = grouper(args, batch_size) + for group in groups: + yield from f(list(group)) class ContentMetadataIndexer(ContentIndexer): """Content-level indexer This indexer is in charge of: - filtering out content already indexed in content_metadata - reading content from objstorage with the content's id sha1 - computing metadata by given context - using the metadata_dictionary as the 'swh-metadata-translator' tool - store result in content_metadata table """ def filter(self, ids): """Filter out known sha1s and return only missing ones. """ yield from self.idx_storage.content_metadata_missing(( { 'id': sha1, 'indexer_configuration_id': self.tool['id'], } for sha1 in ids )) def index(self, id, data, log_suffix='unknown revision'): """Index sha1s' content and store result. Args: id (bytes): content's identifier data (bytes): raw content in bytes Returns: dict: dictionary representing a content_metadata. If the translation wasn't successful the metadata keys will be returned as None """ result = { 'id': id, 'indexer_configuration_id': self.tool['id'], 'metadata': None } try: mapping_name = self.tool['tool_configuration']['context'] log_suffix += ', content_id=%s' % hashutil.hash_to_hex(id) result['metadata'] = \ MAPPINGS[mapping_name](log_suffix).translate(data) except Exception: self.log.exception( "Problem during metadata translation " "for content %s" % hashutil.hash_to_hex(id)) if result['metadata'] is None: return None return result def persist_index_computations(self, results, policy_update): """Persist the results in storage. Args: results ([dict]): list of content_metadata, dict with the following keys: - id (bytes): content's identifier (sha1) - metadata (jsonb): detected metadata policy_update ([str]): either 'update-dups' or 'ignore-dups' to respectively update duplicates or ignore them """ self.idx_storage.content_metadata_add( results, conflict_update=(policy_update == 'update-dups')) class RevisionMetadataIndexer(RevisionIndexer): """Revision-level indexer This indexer is in charge of: - filtering revisions already indexed in revision_intrinsic_metadata table with defined computation tool - retrieve all entry_files in root directory - use metadata_detector for file_names containing metadata - compute metadata translation if necessary and possible (depends on tool) - send sha1s to content indexing if possible - store the results for revision """ ADDITIONAL_CONFIG = { 'tools': ('dict', { 'name': 'swh-metadata-detector', 'version': '0.0.2', 'configuration': { }, }), } def filter(self, sha1_gits): """Filter out known sha1s and return only missing ones. """ yield from self.idx_storage.revision_intrinsic_metadata_missing(( { 'id': sha1_git, 'indexer_configuration_id': self.tool['id'], } for sha1_git in sha1_gits )) def index(self, rev): """Index rev by processing it and organizing result. use metadata_detector to iterate on filenames - if one filename detected -> sends file to content indexer - if multiple file detected -> translation needed at revision level Args: rev (dict): revision artifact from storage Returns: dict: dictionary representing a revision_intrinsic_metadata, with keys: - id (str): rev's identifier (sha1_git) - indexer_configuration_id (bytes): tool used - metadata: dict of retrieved metadata """ result = { 'id': rev['id'], 'indexer_configuration_id': self.tool['id'], 'mappings': None, 'metadata': None } try: root_dir = rev['directory'] dir_ls = list(self.storage.directory_ls(root_dir, recursive=False)) if [entry['type'] for entry in dir_ls] == ['dir']: # If the root is just a single directory, recurse into it # eg. PyPI packages, GNU tarballs subdir = dir_ls[0]['target'] dir_ls = self.storage.directory_ls(subdir, recursive=False) files = [entry for entry in dir_ls if entry['type'] == 'file'] detected_files = detect_metadata(files) (mappings, metadata) = self.translate_revision_intrinsic_metadata( detected_files, log_suffix='revision=%s' % hashutil.hash_to_hex(rev['id'])) result['mappings'] = mappings result['metadata'] = metadata except Exception as e: self.log.exception( 'Problem when indexing rev: %r', e) return result def persist_index_computations(self, results, policy_update): """Persist the results in storage. Args: results ([dict]): list of content_mimetype, dict with the following keys: - id (bytes): content's identifier (sha1) - mimetype (bytes): mimetype in bytes - encoding (bytes): encoding in bytes policy_update ([str]): either 'update-dups' or 'ignore-dups' to respectively update duplicates or ignore them """ # TODO: add functions in storage to keep data in # revision_intrinsic_metadata self.idx_storage.revision_intrinsic_metadata_add( results, conflict_update=(policy_update == 'update-dups')) def translate_revision_intrinsic_metadata( self, detected_files, log_suffix): """ Determine plan of action to translate metadata when containing one or multiple detected files: Args: detected_files (dict): dictionary mapping context names (e.g., "npm", "authors") to list of sha1 Returns: (List[str], dict): list of mappings used and dict with translated metadata according to the CodeMeta vocabulary """ used_mappings = [MAPPINGS[context].name for context in detected_files] metadata = [] tool = { 'name': 'swh-metadata-translator', 'version': '0.0.2', 'configuration': { }, } # TODO: iterate on each context, on each file # -> get raw_contents # -> translate each content config = { k: self.config[k] for k in [INDEXER_CFG_KEY, 'objstorage', 'storage'] } config['tools'] = [tool] for context in detected_files.keys(): cfg = deepcopy(config) cfg['tools'][0]['configuration']['context'] = context c_metadata_indexer = ContentMetadataIndexer(config=cfg) # sha1s that are in content_metadata table sha1s_in_storage = [] metadata_generator = self.idx_storage.content_metadata_get( detected_files[context]) for c in metadata_generator: # extracting metadata sha1 = c['id'] sha1s_in_storage.append(sha1) local_metadata = c['metadata'] # local metadata is aggregated if local_metadata: metadata.append(local_metadata) sha1s_filtered = [item for item in detected_files[context] if item not in sha1s_in_storage] if sha1s_filtered: # content indexing try: c_metadata_indexer.run(sha1s_filtered, policy_update='ignore-dups', log_suffix=log_suffix) # on the fly possibility: for result in c_metadata_indexer.results: local_metadata = result['metadata'] metadata.append(local_metadata) except Exception: self.log.exception( "Exception while indexing metadata on contents") # transform metadata into min set with swh-metadata-detector min_metadata = extract_minimal_metadata_dict(metadata) return (used_mappings, min_metadata) class OriginMetadataIndexer(OriginIndexer): ADDITIONAL_CONFIG = RevisionMetadataIndexer.ADDITIONAL_CONFIG USE_TOOLS = False def __init__(self, config=None, **kwargs): super().__init__(config=config, **kwargs) self.origin_head_indexer = OriginHeadIndexer(config=config) self.revision_metadata_indexer = RevisionMetadataIndexer(config=config) def index_list(self, origin_urls): head_rev_ids = [] origins_with_head = [] - origins = self.storage.origin_get( - [{'url': url} for url in origin_urls]) + origins = list(call_with_batches( + self.storage.origin_get, + [{'url': url} for url in origin_urls], ORIGIN_GET_BATCH_SIZE)) for origin in origins: head_result = self.origin_head_indexer.index(origin['url']) if head_result: head_result['origin_id'] = origin['id'] origins_with_head.append(origin) head_rev_ids.append(head_result['revision_id']) - head_revs = [] - groups = grouper(head_rev_ids, REVISION_GET_BATCH_SIZE) - for group in groups: - head_revs.extend(self.storage.revision_get(group)) + head_revs = list(call_with_batches( + self.storage.revision_get, + head_rev_ids, REVISION_GET_BATCH_SIZE)) assert len(head_revs) == len(head_rev_ids) results = [] for (origin, rev) in zip(origins_with_head, head_revs): if not rev: self.log.warning('Missing head revision of origin %r', origin['url']) continue rev_metadata = self.revision_metadata_indexer.index(rev) orig_metadata = { 'from_revision': rev_metadata['id'], 'id': origin['id'], 'origin_url': origin['url'], 'metadata': rev_metadata['metadata'], 'mappings': rev_metadata['mappings'], 'indexer_configuration_id': rev_metadata['indexer_configuration_id'], } results.append((orig_metadata, rev_metadata)) return results def persist_index_computations(self, results, policy_update): conflict_update = (policy_update == 'update-dups') # Deduplicate revisions rev_metadata = [] orig_metadata = [] revs_to_delete = [] origs_to_delete = [] for (orig_item, rev_item) in results: assert rev_item['metadata'] == orig_item['metadata'] if not rev_item['metadata'] or \ rev_item['metadata'].keys() <= {'@context'}: # If we didn't find any metadata, don't store a DB record # (and delete existing ones, if any) if rev_item not in revs_to_delete: revs_to_delete.append(rev_item) if orig_item not in origs_to_delete: origs_to_delete.append(orig_item) else: if rev_item not in rev_metadata: rev_metadata.append(rev_item) if orig_item not in orig_metadata: orig_metadata.append(orig_item) if rev_metadata: self.idx_storage.revision_intrinsic_metadata_add( rev_metadata, conflict_update=conflict_update) if orig_metadata: self.idx_storage.origin_intrinsic_metadata_add( orig_metadata, conflict_update=conflict_update) # revs_to_delete should always be empty unless we changed a mapping # to detect less files or less content. # However, origs_to_delete may be empty whenever an upstream deletes # a metadata file. if origs_to_delete: self.idx_storage.origin_intrinsic_metadata_delete(origs_to_delete) if revs_to_delete: self.idx_storage.revision_intrinsic_metadata_delete(revs_to_delete)