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authorBryan Newbold <bnewbold@robocracy.org>2020-08-20 14:17:39 -0700
committerBryan Newbold <bnewbold@robocracy.org>2020-08-21 15:35:06 -0700
commitcc7ebbc9afa540cff04989db1edb0913f0d46a54 (patch)
tree3832197bef70d3356f22a23153eee54063bf0d1d /python/fatcat_tools
parentdaf91b137483b7345448b597289c78f8fb3f9969 (diff)
downloadfatcat-cc7ebbc9afa540cff04989db1edb0913f0d46a54.tar.gz
fatcat-cc7ebbc9afa540cff04989db1edb0913f0d46a54.zip
initial implementation of file_meta importer
Diffstat (limited to 'python/fatcat_tools')
-rw-r--r--python/fatcat_tools/importers/__init__.py1
-rw-r--r--python/fatcat_tools/importers/file_meta.py70
2 files changed, 71 insertions, 0 deletions
diff --git a/python/fatcat_tools/importers/__init__.py b/python/fatcat_tools/importers/__init__.py
index c26446fd..b82eb11a 100644
--- a/python/fatcat_tools/importers/__init__.py
+++ b/python/fatcat_tools/importers/__init__.py
@@ -29,3 +29,4 @@ from .wayback_static import auto_wayback_static
from .cdl_dash_dat import auto_cdl_dash_dat
from .ingest import IngestFileResultImporter, SavePaperNowFileImporter
from .shadow import ShadowLibraryImporter
+from .file_meta import FileMetaImporter
diff --git a/python/fatcat_tools/importers/file_meta.py b/python/fatcat_tools/importers/file_meta.py
new file mode 100644
index 00000000..c3728570
--- /dev/null
+++ b/python/fatcat_tools/importers/file_meta.py
@@ -0,0 +1,70 @@
+
+import fatcat_openapi_client
+from .common import EntityImporter
+
+
+class FileMetaImporter(EntityImporter):
+ """
+ The purpose of this importer is to update file-level metadata for file
+ entities that are missing some fields.
+
+ It should *only* update entities, never create (insert) them.
+
+ In particular, during early boostramping over 18 million file entities were
+ imported which were missing file size, mimetype, md5, and/or sha256.
+ """
+
+ def __init__(self, api, require_grobid=True, **kwargs):
+
+ eg_desc = kwargs.pop('editgroup_description', None) or "File metadata updates"
+ eg_extra = kwargs.pop('editgroup_extra', dict())
+ eg_extra['agent'] = eg_extra.get('agent', 'fatcat_tools.FileMetaImporter')
+ kwargs['do_updates'] = kwargs.get("do_updates", True)
+ super().__init__(api,
+ editgroup_description=eg_desc,
+ editgroup_extra=eg_extra,
+ **kwargs)
+
+ def want(self, row):
+ for k in ('sha1hex', 'sha256hex', 'md5hex', 'size_bytes', 'mimetype'):
+ if not row.get(k):
+ return False
+ return True
+
+ def parse_record(self, row):
+
+ file_meta = row
+ fe = fatcat_openapi_client.FileEntity(
+ md5=file_meta['md5hex'],
+ sha1=file_meta['sha1hex'],
+ sha256=file_meta['sha256hex'],
+ size=file_meta['size_bytes'],
+ mimetype=file_meta['mimetype'],
+ )
+ return fe
+
+ def try_update(self, fe):
+ # lookup sha1, or create new entity
+ existing = None
+ try:
+ existing = self.api.lookup_file(sha1=fe.sha1)
+ except fatcat_openapi_client.rest.ApiException as err:
+ if err.status != 404:
+ raise err
+
+ if not existing:
+ self.counts['skip-no-match']
+ return False
+
+ if (existing.md5 and existing.sha256 and existing.size_bytes and existing.mimetype):
+ self.counts['skip-existing-complete']
+ return False
+
+ existing.md5 = existing.md5 or fe.md5
+ existing.sha256 = existing.sha256 or fe.sha256
+ existing.file_bytes = existing.file_bytes or fe.file_bytes
+ existing.mimetype = existing.mimetype or fe.mimetype
+
+ self.api.update_container(self.get_editgroup_id(), existing.ident, existing)
+ self.counts['update'] += 1
+ return False