fix single image carta crashing

schema/versions/01de4f42cf27_fix_single_image_carta.py

+"""fix single image carta
+
+Revision ID: 01de4f42cf27
+Revises: b3667e00ef4a
+Create Date: 2021-09-13 11:39:00.808773
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = "01de4f42cf27"
+down_revision = "b3667e00ef4a"
+branch_labels = None
+depends_on = None
+
+script_content = """#!/bin/sh
+set -o errexit
+
+export HOME=$TMPDIR
+
+{{#need_data}}
+./framework.sh -r .
+chmod 770 .
+cd rawdata/
+../productfetcher{{product_locator}} {{^single_image}}&{{/single_image}}
+.{{/need_data}}./carta_envoy {{#need_data}}--parallel{{/need_data}} {{#single_image}}--single -i {{imageName}}{{/single_image}} -d $1 -n $2 -wf $3 -r $4
+{{#need_data}}wait{{/need_data}}
+
+"""
+
+old_content = """#!/bin/sh
+set -o errexit
+
+export HOME=$TMPDIR
+
+{{#need_data}}
+./framework.sh -r .
+chmod 770 .
+cd rawdata/
+../productfetcher{{product_locator}} &
+.{{/need_data}}./carta_envoy {{#need_data}}--parallel{{/need_data}} {{#single_image}}--single -i {{imageName}}{{/single_image}} -d $1 -n $2 -wf $3 -r $4
+{{#need_data}}wait{{/need_data}}
+
+"""
+
+
+def upgrade():
+    op.execute(
+        f"""
+        UPDATE workflow_templates
+        SET content=E'{script_content}' WHERE filename='carta.sh'
+        """
+    )
+
+
+def downgrade():
+    op.execute(
+        f"""
+        UPDATE workflow_templates
+        SET content=E'{old_content}' WHERE filename='carta.sh'
+        """
+    )