Fix empty items

aerich/cli.py

@@ -125,7 +125,7 @@ async def upgrade(ctx: Context):
             click.secho(f"Success upgrade {version_file}", fg=Color.green)
             migrated = True
     if not migrated:
-        click.secho("No items to be migrated", fg=Color.yellow)
+        click.secho("No upgrade items found", fg=Color.yellow)
 
 
 @cli.command(help="Downgrade to specified version.")
@@ -170,7 +170,8 @@ async def downgrade(ctx: Context, version: int, delete: bool):
             content = get_version_content_from_file(file_path)
             downgrade_query_list = content.get("downgrade")
             if not downgrade_query_list:
-                return click.secho("No downgrade items found", fg=Color.yellow)
+                click.secho("No downgrade items found", fg=Color.yellow)
+                return
             for downgrade_query in downgrade_query_list:
                 await conn.execute_query(downgrade_query)
             await version.delete()

aerich/utils.py

@@ -71,7 +71,10 @@ def get_version_content_from_file(version_file: str) -> Dict:
             second = len(content) - 1
         upgrade_content = content[first + len(_UPGRADE) : second].strip()  # noqa:E203
         downgrade_content = content[second + len(_DOWNGRADE) :].strip()  # noqa:E203
-        ret = {"upgrade": upgrade_content.split(";\n"), "downgrade": downgrade_content.split(";\n")}
+        ret = {
+            "upgrade": list(filter(lambda x: x or False, upgrade_content.split(";\n"))),
+            "downgrade": list(filter(lambda x: x or False, downgrade_content.split(";\n"))),
+        }
         return ret