Plugin baselines skip tables that already exist

plugins/printers/migrations/versions/0005_observedqueues.py

@@ -21,6 +21,11 @@ Revision ID: printers0005observedqueues
 Revises: printers0004drivervendor
 """
 from alembic import op
+
+from shopdb.plugins.alembic_template import (
+    create_index_if_missing,
+    create_table_if_missing,
+)
 import sqlalchemy as sa
 
 
@@ -36,7 +41,7 @@ def upgrade():
     inspector = sa.inspect(bind)
     if 'printerobservedqueues' in inspector.get_table_names():
         return
-    op.create_table(
+    create_table_if_missing(
         'printerobservedqueues',
         sa.Column('printerobservedqueueid', sa.Integer(), nullable=False),
         # Nullable and no index of its own beyond the explicit one below: an
@@ -67,10 +72,10 @@ def upgrade():
     )
     # Port address is the primary match key from an observed queue back to a
     # printer asset, so every comparison read hits it.
-    op.create_index('idx_printerobservedqueues_portaddress',
-                    'printerobservedqueues', ['portaddress'])
-    op.create_index('idx_printerobservedqueues_assetid',
-                    'printerobservedqueues', ['assetid'])
+    create_index_if_missing('idx_printerobservedqueues_portaddress',
+                            'printerobservedqueues', ['portaddress'])
+    create_index_if_missing('idx_printerobservedqueues_assetid',
+                            'printerobservedqueues', ['assetid'])
 
 
 def downgrade():