add get_or_create_grouphashes helper

src/sentry/grouping/ingest/hashing.py

@@ -7,6 +7,7 @@
 
 import sentry_sdk
 
+from sentry import options
 from sentry.exceptions import HashDiscarded
 from sentry.features.rollout import in_random_rollout
 from sentry.grouping.api import (
@@ -27,6 +28,7 @@
 from sentry.grouping.ingest.utils import extract_hashes
 from sentry.grouping.result import CalculatedHashes
 from sentry.models.grouphash import GroupHash
+from sentry.models.grouphashmetadata import GroupHashMetadata
 from sentry.models.project import Project
 from sentry.utils import metrics
 from sentry.utils.metrics import MutableTags
@@ -340,3 +342,22 @@ def get_hash_values(
         job["finest_tree_label"] = all_hashes.finest_tree_label
 
     return (primary_hashes, secondary_hashes, all_hashes)
+
+
+def get_or_create_grouphashes(
+    project: Project, calculated_hashes: CalculatedHashes
+) -> list[GroupHash]:
+    grouphashes = []
+
+    for hash_value in extract_hashes(calculated_hashes):
+        grouphash, created = GroupHash.objects.get_or_create(project=project, hash=hash_value)
+
+        # TODO: Do we want to expand this to backfill metadata for existing grouphashes? If we do,
+        # we'll have to override the metadata creation date for them.
+        if created and options.get("grouping.grouphash_metadata.ingestion_writes_enabled"):
+            # For now, this just creates a record with a creation timestamp
+            GroupHashMetadata.objects.create(grouphash=grouphash)
+
+        grouphashes.append(grouphash)
+
+    return grouphashes