def mount_shared_directory(self, host_dir=None):
"""
Bind mount shared location
The shared location is a directory which shares data from
the image buildsystem host with the image root system. It
is used for the repository setup and the package manager
cache to allow chroot operations without being forced to
duplicate this data
:param str host_dir: directory to share between image root and build
system root
:raises KiwiMountSharedDirectoryError: if mount fails
"""
if not host_dir:
host_dir = self.shared_location
try:
Path.create(self.root_dir + host_dir)
Path.create('/' + host_dir)
shared_mount = MountManager(
device=host_dir, mountpoint=self.root_dir + host_dir
)
shared_mount.bind_mount()
self.mount_stack.append(shared_mount)
self.dir_stack.append(host_dir)
except Exception as e:
self.cleanup()
raise KiwiMountSharedDirectoryError(
'%s: %s' % (type(e).__name__, format(e))
)
def test_shared_directory_raises_error(
self, mock_cleanup, mock_path, mock_mount
):
mock_mount.side_effect = KiwiMountSharedDirectoryError(
'mount-error'
)
self.bind_root.mount_shared_directory()
mock.cleanup.assert_called_once_with()