Add management commands to execute bootstrap setups and erase user data

apps/bootstrap/management/commands/execute_bootstrap.py

@@ -0,0 +1,31 @@
+from __future__ import absolute_import
+
+from optparse import make_option
+
+from django.core.management.base import BaseCommand, CommandError
+
+from ...models import BootstrapSetup
+from ...exceptions import ExistingData
+
+
+class Command(BaseCommand):
+    help = 'Execute a bootstrap setup by the given slug.'
+    args = '[bootstrap setup slug]'
+
+    def handle(self, bootstrap_setup_slug=None, **options):
+        if not bootstrap_setup_slug:
+            raise CommandError('Enter one bootstrap setup slug.')
+
+        # Get corresponding bootstrap setup instance
+        try:
+            bootstrap_setup = BootstrapSetup.objects.get(slug=bootstrap_setup_slug)
+        except BootstrapSetup.DoesNotExist:
+            raise CommandError('No bootstrap setup with such a slug.')
+
+        # Try to execute bootstrap setup, catch errors
+        try:
+            bootstrap_setup.execute()
+        except ExistingData:
+            raise CommandError('Cannot execute bootstrap setup, there is existing data.  Erase all data and try again.')
+        except Exception as exception:
+            raise CommandError('Unhandled exception: %s' % exception)