new_contents: """
  Outputs a graphviz dot file of the dependencies.
  """
  
  from optparse import make_option
  
  from django.core.management.base import BaseCommand
  from django.core.management.color import no_style
  
  from south.migration import Migrations, all_migrations
  
  class Command(BaseCommand):
  
      help = "Outputs a GraphViz dot file of all migration dependencies to stdout."
      
      def handle(self, **options):
          
          # Resolve dependencies
          Migrations.calculate_dependencies()
          
          print "digraph G {"
          
          # Print each app in a cluster
          #for migrations in all_migrations():
          #    print "  subgraph %s {" % migrations.app_label()
          #    # Nodes inside here are linked
          #    print (" -> ".join(['"%s.%s"' % (migration.app_label(), migration.name()) for migration in migrations])) + ";"
          #    print "  }"
      
          # For every migration, print its links.
          for migrations in all_migrations():
              for migration in migrations:
                  for other in migration.dependencies:
                      print '"%s.%s" -> "%s.%s"' % (
                          other.app_label(), other.name(),
                          migration.app_label(), migration.name(),
                      )
              
          print "}";
subject: Add new migration-graphing command.