def test_get_empty_space_non_zero_return_code(monkeypatch):
generateStandardMock(monkeypatch, b"Error.", b"", 1, "lvm")
manager = device.LVMDeviceManager("/dev/fileserver")
with pytest.raises(DeviceError) as execinfo:
manager.get_empty_space()
assert "Error." in str(execinfo)
def test_lvm_get_partition_size_bad_return_code(monkeypatch):
generateStandardMock(monkeypatch, b"Didn't work.", b"", 1, "lvm")
manager = device.LVMDeviceManager("/dev/fileserver")
with pytest.raises(DeviceError) as execinfo:
manager.get_partition_size("media")
assert "Didn't work." in str(execinfo)
def test_lvm_get_drive_size_bytes_bad_return_code(monkeypatch):
generateStandardMock(monkeypatch, b"Test error", b"", 1, "lvm")
manager = device.LVMDeviceManager("/dev/fileserver")
with pytest.raises(DeviceError) as execinfo:
manager.get_drive_size_bytes()
assert "Test error" in str(execinfo)
def test_lvm_get_partition_size(monkeypatch):
generateStandardMock(
monkeypatch,
b"/dev/fileserver/media:fileserver:3:1:-1:0:2097152:256:-1:0:-1:252:3",
b"", 0, "lvm")
manager = device.LVMDeviceManager("/dev/fileserver")
result = manager.get_partition_size("media")
assert result == 2097152
def GetPartitions(self, device_name, part_mask, lvm):
"""Gets the partitions of the specified device. Note that this
will always return a list of strings, however if this is not an LVM
device, all of the strings will be valid numbers."""
if lvm:
source_manager = device.LVMDeviceManager(device_name)
else:
source_manager = device.DeviceManager(device_name, part_mask)
parts = source_manager.get_partitions()
for idx, val in enumerate(parts):
if type(val) != str:
parts[idx] = str(val)
return parts
def test_lvm_get_partitions_standard(monkeypatch):
generateStandardMock(
monkeypatch,
b"""LV:VG:Attr:LSize:Pool:Origin:Data%:Meta%:Move:Log:Cpy%Sync:Convert
backup:fileserver:-wi-a-----:5,00g::::::::
media:fileserver:-wi-a-----:1,00g::::::::
share:fileserver:-wi-a-----:50,00g::::::::
root:ubuntu-vg:-wi-ao----:6,52g::::::::
swap_1:ubuntu-vg:-wi-ao----:1,00g::::::::
""", b"", 0, "lvm")
manager = device.LVMDeviceManager("/dev/fileserver")
parts = manager.get_partitions()
assert ["backup", "media", "share"] == parts
def CopyDrive(self,
source,
target,
check_if_valid_and_copy=False,
source_part_mask="{0}{1}",
target_part_mask="{0}{1}",
excluded_partitions=[],
ignore_copy_failures=True,
root_partition=-1,
boot_partition=-1,
efi_partition=-1,
mount_points=("", ""),
rsync_args=device.DEFAULT_RSYNC_ARGS,
lvm_source="",
lvm_target="",
bootloader="uuid_copy"):
"""Uses a DeviceCopier to clone the source drive to the target drive.
**Note:** if using LVM, any uses of "partition" in the documentation
actually refer to logical volumes.
It is recommended to set ``check_if_valid_and_copy`` to True if the the
two drives are not the same size with the same partitions.
If either source or target ends in ".img" copy_drives will assume it is an
image file, and mount if accordingly.
:param source: The drive identifier ("/dev/sda" or the like) of the source
drive.
:param target: The drive identifier ("/dev/sda" or the like) of the target
drive.
:param check_if_valid=False: If true, the function checks if the target
drive is compatible to receive the source
drive's data. If it is not, erase the target
drive and make a proper partition table.
Defaults to False.
:param source_part_mask: A string to be passed to the "format" method that
expects to arguments, the drive name and the
partition number. Applied to the source drive.
Defaults to "{0}{1}".
:param target_part_mask: Same as source_part_mask, but applied to target
drive. Defaults to "{0}{1}"
:param excluded_partitions: Partitions to not copy or test for boot
capability.
:param ignore_copy_failures: If True, errors during copying will be
ignored and copying will continue. It is
recommended that this be left to true,
because errors frequently occur with swap
partitions or other strange partitions.
:param root_partition: If not None, this is an int that determines which
partition grub should be installed to. Defaults to
None.
:param boot_partition: If not None, this is an int that represents the
partition to mount at /boot when installing grub.
:param efi_partition: If not None, this is an int that represents the
partition to mount at /boot/efi when installing grub.
:param mount_points: Expects a tuple containing two strings pointing to
the directories where partitions should be mounted in
case of testing. If None, the function will generate
two random directories in the /tmp folder. Defaults
to None.
:param lvm: the Logical Volume Group to copy to the new drive.
:raises DeviceError: If there is an error reading data from one device or
another.
:raises CopyError: If there is an error copying the data between the two
devices.
:returns: True on success and an error message or exception on failure.
"""
LOGGER.debug("Daemon starting clone.")
def part_callback(status):
self.PartitionStatus(status)
def copy_callback(current, status):
self.CopyStatus(current, status)
def boot_callback(status):
self.BootStatus(status)
root_partition = root_partition if root_partition >= 0 else None
boot_partition = boot_partition if boot_partition >= 0 else None
efi_partition = efi_partition if efi_partition >= 0 else None
try:
source_loop = None
target_loop = None
if source.endswith(".img"):
source_loop = mount_loop_device(source)
source = source_loop
source_part_mask = "{0}p{1}"
if target.endswith(".img"):
target_loop = mount_loop_device(target)
target = target_loop
target_part_mask = "{0}p{1}"
LOGGER.warning(
"Right now, WereSync does not properly install bootloaders on "
"image files. You will have to handle that yourself if you "
"want your image to be bootable.")
source_manager = device.DeviceManager(source, source_part_mask)
target_manager = device.DeviceManager(target, target_part_mask)
try:
target_manager.get_partition_table_type()
except (DeviceError, UnsupportedDeviceError) as ex:
# Since we're erasing the target drive anyway, we can just create
# a new disk label
proc = subprocess.Popen(
["sgdisk", "-o", target_manager.device])
proc.communicate()
copier = device.DeviceCopier(source_manager, target_manager)
partitions_remade = False
if check_if_valid_and_copy:
copy_partitions(copier, part_callback)
partitions_remade = True
if lvm_source is not "":
create_new_vg_if_not_exists(lvm_source, lvm_source + "-copy",
target_manager)
lvm_source = device.LVMDeviceManager(lvm_source)
lvm_target = device.LVMDeviceManager(lvm_source.device +
"-copy")
copier.lvm_source = lvm_source
copier.lvm_target = lvm_target
if partitions_remade and check_if_valid_and_copy:
copy_partitions(copier, part_callback, lvm=True)
if mount_points is ("", "") or len(
mount_points) < 2 or mount_points[0] == mount_points[1]:
source_dir = "/tmp/" + str(random.randint(0, 100000))
target_dir = "/tmp/" + str(random.randint(-100000, -1))
os.makedirs(source_dir, exist_ok=True)
os.makedirs(target_dir, exist_ok=True)
mount_points = (source_dir, target_dir)
print(_("Beginning to copy files."))
copier.copy_files(mount_points[0],
mount_points[1],
excluded_partitions,
ignore_copy_failures,
rsync_args,
callback=copy_callback)
print(_("Finished copying files."))
print(_("Making bootable"))
try:
copier.make_bootable(bootloader, mount_points[0],
mount_points[1], excluded_partitions,
root_partition, boot_partition,
efi_partition, boot_callback)
except DeviceError as ex:
print(
_("Error making drive bootable. All files should be fine.")
)
return ex
print(_("All done, enjoy your drive!"))
return "True"
finally:
def delete_loop(loop_name):
subprocess.call(["losetup", "-d", loop_name])
if source_loop is not None:
delete_loop(source_loop)
if target_loop is not None:
delete_loop(target_loop)
def test_get_empty_space(monkeypatch):
generateStandardMock(monkeypatch, b" 70921486336B", b"", 0, "lvm")
manager = device.LVMDeviceManager("/dev/fileserver")
result = manager.get_empty_space()
assert result == 70921486336
def test_lvm_get_partition_alignment_unssported():
manager = device.LVMDeviceManager("/dev/fileserver")
with pytest.raises(UnsupportedDeviceError) as execinfo:
manager.get_partition_alignment()
def test_lvm_get_partition_code_unsupported():
manager = device.LVMDeviceManager("/dev/fileserver")
with pytest.raises(UnsupportedDeviceError) as execinfo:
manager.get_partition_code("media")
def test_lvm_get_drive_size_bytes_standard(monkeypatch):
generateStandardMock(monkeypatch, b" 6434062336B", b"", 0, "lvm")
manager = device.LVMDeviceManager("/dev/fileserver")
result = manager.get_drive_size_bytes()
assert 6434062336 == result
def test_lvm_get_drive_size_standard(monkeypatch):
generateStandardMock(monkeypatch, b" 12566528S", b"", 0, "lvm")
manager = device.LVMDeviceManager("/dev/fileserver")
result = manager.get_drive_size()
assert 12566528 == result
