Add script to restore correct arXiv preprint dates (#64)

* Add script to restore correct arXiv preprint dates

* Auto-format python code

---------

Co-authored-by: michamos <[email protected]>

Author: michamos

scripts/restore-arxiv-preprint-date/script.py

@@ -0,0 +1,28 @@
+from datetime import datetime
+from inspirehep.curation.search_check_do import SearchCheckDo
+
+
+class RestoreArxivPreprintDate(SearchCheckDo):
+    """Restore the correct preprint_date which got overwritten due to an arXiv OAI-PMH bug."""
+
+    query = "da < 2025-06-16 and arxiv_eprints.value:* and preprint_date:2025-06-16->2025-07-01"
+
+    @staticmethod
+    def check(record, logger, state):
+        return (
+            record.created < datetime(2025, 6, 16, 8)
+            and record.get("preprint_date", "0") >= "2025-06-16"
+        )
+
+    @staticmethod
+    def do(record, logger, state):
+        current_preprint_date = record["preprint_date"]
+        for revision_id in range(2, record.revision_id):
+            preprint_date = record.revisions[-revision_id].get("preprint_date")
+            if preprint_date and preprint_date != current_preprint_date:
+                record["preprint_date"] = preprint_date
+                return
+        logger.warning("Preprint date not modified")
+
+
+RestoreArxivPreprintDate()