def rotate(self, filename, object_name, objects_list,
rotate_limit=ROTATE_LIMIT):
"""
Arguments:
filename: filename of backup target
object_name: name of object on Swift
objects_list: list of objects on Swift
rotate_limit: limitation of backup rotation
"""
# copy current object to new object
timestamp = datetime.now().strftime("%Y%m%d-%H%M%S")
new_object_name = object_name + '_' + timestamp
rc = client.copy_object(self.token, self.storage_url,
self.container_name, object_name,
new_object_name, verify=self.verify)
if rc != 201:
raise RuntimeError('Failed to copy object "%s"' % new_object_name)
# create new object
rc = client.create_object(self.token, self.storage_url,
self.container_name, filename,
verify=self.verify)
if rc != 201:
raise RuntimeError('Failed to create the object "%s"'
% object_name)
# delete old objects
archive_list = [obj for obj in objects_list
if obj.startswith(object_name + '_')]
archive_list.reverse()
[client.delete_object(self.token, self.storage_url,
self.container_name, obj, verify=self.verify)
for i, obj in enumerate(archive_list) if i + 1 > rotate_limit - 1]
return True
def delete_backup_data(self, object_name):
"""
Argument:
object_name: delete target object name
"""
if (client.is_container(self.token, self.storage_url,
self.container_name, verify=self.verify) and
client.is_object(self.token, self.storage_url,
self.container_name, object_name,
verify=self.verify)):
rc = client.delete_object(self.token,
self.storage_url,
self.container_name,
object_name,
veirfy=self.verify)
if not rc == 204:
raise RuntimeError('Failed to delete the object "%s"'
% object_name)
return True
else:
raise RuntimeError('No such object "%s"' % object_name)