Pull in upstream boto from github at bcb719937de9ac2851e632d62b777352029a6d55

bin/route53

 #!/usr/bin/env python
 # Author: Chris Moyer
 #
 # route53 is similar to sdbadmin for Route53, it's a simple
 # console utility to perform the most frequent tasks with Route53
 
 def _print_zone_info(zoneinfo):
     print "="*80
     print "| ID:   %s" % zoneinfo['Id'].split("/")[-1]
     print "| Name: %s" % zoneinfo['Name']
@@ skipping 74 matching lines @@
     changes = ResourceRecordSets(conn, hosted_zone_id, comment)
     response = conn.get_all_rrsets(hosted_zone_id, type, name, maxitems=1)[0]
     change1 = changes.add_change("DELETE", name, type, response.ttl)
     for old_value in response.resource_records:
         change1.add_value(old_value)
     change2 = changes.add_change("CREATE", name, type, ttl)
     for new_value in values.split(','):
         change2.add_value(new_value)
     print changes.commit()
 
+def change_alias(conn, hosted_zone_id, name, type, alias_hosted_zone_id, alias_dns_name, comment=""):
+    """Delete and then add an alias to a zone"""
+    from boto.route53.record import ResourceRecordSets
+    changes = ResourceRecordSets(conn, hosted_zone_id, comment)
+    response = conn.get_all_rrsets(hosted_zone_id, type, name, maxitems=1)[0]
+    change1 = changes.add_change("DELETE", name, type)
+    change1.set_alias(response.alias_hosted_zone_id, response.alias_dns_name)
+    change2 = changes.add_change("CREATE", name, type)
+    change2.set_alias(alias_hosted_zone_id, alias_dns_name)
+    print changes.commit()
+
 def help(conn, fnc=None):
     """Prints this help message"""
     import inspect
     self = sys.modules['__main__']
     if fnc:
         try:
             cmd = getattr(self, fnc)
         except:
             cmd = None
         if not inspect.isfunction(cmd):
@@ skipping 27 matching lines @@
     else:
         cmd = help
         args = []
     if not cmd:
         cmd = help
     try:
         cmd(conn, *args)
     except TypeError, e:
         print e
         help(conn, cmd.__name__)