chore: apply formatting and typing tweaks in history output and tests

Author: akhundMurad

pacta/cli/history.py

@@ -5,6 +5,7 @@
 
 from pacta.cli._io import ensure_repo_root
 from pacta.cli.exitcodes import EXIT_OK
+from pacta.snapshot import Snapshot
 from pacta.snapshot.store import FsSnapshotStore
 
 
@@ -117,9 +118,11 @@ def _output_text(
         refs_str = f" ({', '.join(refs_list)})" if refs_list else ""
 
         # Output line
-        print(f"{short_hash}  {timestamp}  {commit}  {branch:<12}  "
-              f"{node_count:>3} nodes  {edge_count:>3} edges  "
-              f"{violation_count:>2} violations{refs_str}")
+        print(
+            f"{short_hash}  {timestamp}  {commit}  {branch:<12}  "
+            f"{node_count:>3} nodes  {edge_count:>3} edges  "
+            f"{violation_count:>2} violations{refs_str}"
+        )
 
     print()
 
@@ -160,7 +163,7 @@ def _output_json(
             "violation_count": len(snapshot.violations),
             "violations_by_severity": violations_by_severity,
         }
-        result["entries"].append(entry)
+        result["entries"].append(entry)  # type: ignore[possibly-missing-attribute]
 
     print(json.dumps(result, indent=2, default=str))
 
@@ -207,10 +210,7 @@ def export(
             "tool_version": meta.tool_version,
             "node_count": len(snapshot.nodes),
             "edge_count": len(snapshot.edges),
-            "violations": [
-                v.to_dict() if hasattr(v, "to_dict") else v
-                for v in snapshot.violations
-            ],
+            "violations": [v.to_dict() if hasattr(v, "to_dict") else v for v in snapshot.violations],
         }
         entries.append(entry)
 

pacta/snapshot/store.py

@@ -24,7 +24,6 @@
 from pacta.snapshot.jsonutil import dumps_deterministic, load_file
 from pacta.snapshot.types import Snapshot, SnapshotRef
 
-
 # Length of hash prefix used for object filenames
 HASH_PREFIX_LENGTH = 8
 

tests/cli/test_history.py

@@ -6,7 +6,6 @@
 from pathlib import Path
 
 import pytest
-
 from pacta.ir.types import CanonicalId, IRNode, Language, SymbolKind
 from pacta.snapshot.builder import DefaultSnapshotBuilder
 from pacta.snapshot.store import FsSnapshotStore

tests/snapshot/test_snapshot.py

@@ -252,8 +252,8 @@ def test_builder_preserves_given_created_at(meta):
 
 def test_store_refs_and_objects(tmp_path: Path):
     """Test the new content-addressed storage with refs."""
-    from pacta.snapshot.store import FsSnapshotStore
     from pacta.snapshot.builder import DefaultSnapshotBuilder
+    from pacta.snapshot.store import FsSnapshotStore
     from pacta.snapshot.types import SnapshotMeta
 
     store = FsSnapshotStore(repo_root=str(tmp_path))