Plugin baselines skip tables that already exist

plugins/measuringtools/migrations/versions/0001_measuringtools_baseline.py

@@ -17,6 +17,11 @@ connection's default charset, so on a utf8mb4 database they are utf8mb4, matchin
 how the core chain creates its tables.
 """
 from alembic import op
+
+from shopdb.plugins.alembic_template import (
+    create_index_if_missing,
+    create_table_if_missing,
+)
 import sqlalchemy as sa
 
 
@@ -28,7 +33,7 @@ depends_on = None
 
 
 def upgrade():
-    op.create_table(
+    create_table_if_missing(
         'measuringtooltypes',
         sa.Column('measuringtooltypeid', sa.Integer(), nullable=False),
         sa.Column('name', sa.String(length=100), nullable=False),
@@ -40,7 +45,7 @@ def upgrade():
         sa.PrimaryKeyConstraint('measuringtooltypeid'),
         sa.UniqueConstraint('name'),
     )
-    op.create_table(
+    create_table_if_missing(
         'measuringtools',
         sa.Column('measuringtoolid', sa.Integer(), nullable=False),
         sa.Column('assetid', sa.Integer(), nullable=False),
@@ -59,8 +64,8 @@ def upgrade():
         sa.PrimaryKeyConstraint('measuringtoolid'),
         sa.UniqueConstraint('assetid'),
     )
-    op.create_index('idx_measuringtool_type', 'measuringtools',
-                    ['measuringtooltypeid'])
+    create_index_if_missing('idx_measuringtool_type', 'measuringtools',
+                            ['measuringtooltypeid'])
 
 
 def downgrade():