def __init__(self, options):
migrate = None
if options.migrate_zfs:
migrate = 'ZFS'
if options.migrate_path:
migrate = 'PATH'
Manager.initialize_manager(options.zfs, options.path, migrate)
if not options.quiet:
print('ZCM initialized ZFS %s at path %s' %
(options.zfs, options.path))
def test_migrate_existing_path(self):
path = Path(directory)
temp_dir = path.joinpath('my', 'cool', 'subdirectory')
temp_dir.mkdir(parents=True)
temp_file = temp_dir.joinpath('file.txt')
with temp_file.open('w', encoding='utf-8') as f:
f.write('SOME TEXT')
with self.assertRaises(ZCMError):
Manager.initialize_manager(zfs, directory)
with self.assertRaises(ZCMError):
Manager.initialize_manager(zfs, directory)
with self.assertRaises(ZCMError):
Manager.initialize_manager(zfs, directory, migrate='ZFS')
try:
Manager.initialize_manager(zfs, directory, migrate='PATH')
except ZCMException as e:
self.fail('Initialization should not raise exceptions')
manager = None
try:
manager = Manager(zfs)
except ZCMException as e:
self.fail('Instantiation should not raise exceptions')
self.assertTrue(temp_file.is_file())
with temp_file.open('r', encoding='utf-8') as f:
self.assertEqual(f.read(), 'SOME TEXT')
try:
manager.destroy()
except ZCMException as e:
self.fail('Destroy should not raise exceptions')
def test_initialize_existing_zfs(self):
path = Path(directory)
self.assertIsNotNone(
zfs_create(zfs, mountpoint=directory, recursive=True))
temp_dir = path.joinpath('my', 'cool', 'subdirectory')
temp_dir.mkdir(parents=True)
temp_file = temp_dir.joinpath('file.txt')
with temp_file.open('w', encoding='utf-8') as f:
f.write('SOME TEXT')
with self.assertRaises(ZCMError):
Manager.initialize_manager(zfs, directory)
try:
zfs_destroy(zfs)
except ZFSError:
self.fail('zfs_destroy should not raise exceptions')
self.assertFalse(temp_file.exists())
path.rmdir()
def test_initialize(self):
with self.assertRaises(ZCMError):
Manager.initialize_manager(zfs, directory)
clone = None
try:
manager = Manager(directory)
except ZCMError as e:
self.fail('Instantiation should not raise exceptions')
self.assertEqual(manager.path, Path(directory))
self.assertEqual(manager.zfs, zfs)
self.assertEqual(manager.active_clone, manager.clones[0])
self.assertEqual(manager.next_id, '00000001')
self.assertEqual(len(manager.older_clones), 0)
self.assertEqual(len(manager.newer_clones), 0)
filesystem = zfs
path = Path(directory, '.clones')
self.assertTrue(zfs_is_filesystem(filesystem))
self.assertEqual(zfs_get(filesystem, 'mountpoint'), path)
self.assertTrue(zfs_get(filesystem, 'mounted'))
self.assertTrue(path.is_dir())
id = '00000000'
filesystem = '%s/%s' % (zfs, id)
path = Path(directory)
self.assertEqual(manager.clones[0].id, id)
self.assertEqual(manager.clones[0].zfs, filesystem)
self.assertIsNone(manager.clones[0].origin)
self.assertIsNone(manager.clones[0].origin_id)
self.assertEqual(manager.clones[0].mountpoint, path)
self.assertIsInstance(manager.clones[0].creation, datetime)
self.assertTrue(zfs_is_filesystem(filesystem))
self.assertEqual(zfs_get(filesystem, 'mountpoint'), path)
self.assertTrue(zfs_get(filesystem, 'mounted'))
self.assertTrue(path.is_dir())
def setUp(self):
try:
Manager.initialize_manager(zfs, directory)
except ZCMError:
pass
return super().setUp()