fix(format): black格式化 check_migration_safety.py

scripts/check_migration_safety.py

@@ -48,10 +48,19 @@ HIGH_RISK_PATTERNS = [
 
 # 中风险模式：可能导致数据丢失或兼容性问题
 MEDIUM_RISK_PATTERNS = [
-    (r"op\.alter_column\([^)]*nullable\s*=\s*False", "新增 NOT NULL 约束 - 旧数据可能为空导致迁移失败"),
+    (
+        r"op\.alter_column\([^)]*nullable\s*=\s*False",
+        "新增 NOT NULL 约束 - 旧数据可能为空导致迁移失败",
+    ),
     (r"op\.alter_column\([^)]*type_\s*=", "列类型变更 - 可能导致数据截断或转换失败"),
-    (r"\bop\.rename_table\(", "op.rename_table() - 重命名表，可能导致依赖该表的代码报错"),
-    (r"\bop\.rename_column\(", "op.rename_column() - 重命名列，可能导致依赖该列的代码报错"),
+    (
+        r"\bop\.rename_table\(",
+        "op.rename_table() - 重命名表，可能导致依赖该表的代码报错",
+    ),
+    (
+        r"\bop\.rename_column\(",
+        "op.rename_column() - 重命名列，可能导致依赖该列的代码报错",
+    ),
     (r"\bop\.drop_index\(", "op.drop_index() - 删除索引，可能影响查询性能"),
     (r"\bop\.drop_constraint\(", "op.drop_constraint() - 删除约束，可能影响数据完整性"),
 ]
@@ -95,13 +104,24 @@ def get_new_migrations_via_diff(diff_target: str) -> List[Path]:
     """
     try:
         result = subprocess.run(
-            ["git", "diff", "--name-only", "--diff-filter=A", diff_target, "HEAD", "--", "alembic/versions/"],
+            [
+                "git",
+                "diff",
+                "--name-only",
+                "--diff-filter=A",
+                diff_target,
+                "HEAD",
+                "--",
+                "alembic/versions/",
+            ],
             cwd=str(REPO_ROOT),
             capture_output=True,
             text=True,
             check=True,
         )
-        files = [line.strip() for line in result.stdout.strip().split("\n") if line.strip()]
+        files = [
+            line.strip() for line in result.stdout.strip().split("\n") if line.strip()
+        ]
         return [REPO_ROOT / f for f in files]
     except subprocess.CalledProcessError as e:
         print(f"⚠️  git diff 失败（{diff_target}）：{e.stderr.strip()}")
@@ -109,7 +129,9 @@ def get_new_migrations_via_diff(diff_target: str) -> List[Path]:
         return sorted(ALEMBIC_VERSIONS_DIR.glob("*.py"))
 
 
-def find_new_migrations(since_revision: str | None = None, diff_against: str | None = None) -> List[Path]:
+def find_new_migrations(
+    since_revision: str | None = None, diff_against: str | None = None
+) -> List[Path]:
     """
     找出需要检查的迁移文件。
     优先级：diff_against > since_revision > 全部
@@ -161,7 +183,9 @@ def analyze_migration(file_path: Path) -> Tuple[List[str], List[str], List[str]]
 
 
 def main() -> int:
-    parser = argparse.ArgumentParser(description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter)
+    parser = argparse.ArgumentParser(
+        description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter
+    )
     parser.add_argument(
         "--since",
         default=os.getenv("MIGRATION_SINCE_REVISION"),
@@ -224,7 +248,9 @@ def main() -> int:
         print()
 
     print("=" * 60)
-    print(f"检查结果：{len(all_safe)} 项安全 / {len(all_medium)} 项中风险 / {len(all_high)} 项高风险")
+    print(
+        f"检查结果：{len(all_safe)} 项安全 / {len(all_medium)} 项中风险 / {len(all_high)} 项高风险"
+    )
     print()
 
     if all_high:
@@ -247,4 +273,3 @@ def main() -> int:
 
 if __name__ == "__main__":
     sys.exit(main())
-