def test_is_snapshot(zpool, test_dataset):
snapname = f"pyzfscmds-{datetime.datetime.now().isoformat()}"
dataset = "/".join([zpool, test_dataset])
pyzfscmds.cmd.zfs_snapshot(dataset, snapname)
assert zfs_utility.is_snapshot(f"{dataset}@{snapname}")
def get_clones(root_dataset: str, existing: Optional[str]) -> list:
parent_dataset = zfs_utility.dataset_parent(root_dataset)
clone_data = []
list_dataset = None # Dataset we are listing clones under
if existing:
existing_dataset = f"{parent_dataset}/{existing}"
if zfs_utility.is_snapshot(existing_dataset):
snap_suffix = existing_dataset.rsplit('@', 1)[-1]
list_dataset = zfs_utility.snapshot_parent_dataset(
existing_dataset)
else:
if zfs_utility.dataset_exists(existing_dataset):
snap_suffix = zedenv.lib.be.snapshot(existing, parent_dataset)
list_dataset = f"{parent_dataset}/{existing}"
else:
ZELogger.log(
{
"level": "EXCEPTION",
"message":
f"The dataset {existing_dataset} doesn't exist."
},
exit_on_error=True)
else:
snap_suffix = zedenv.lib.be.snapshot(
zfs_utility.dataset_child_name(root_dataset), parent_dataset)
list_dataset = root_dataset
clones = None
try:
clones = pyzfscmds.cmd.zfs_list(list_dataset,
recursive=True,
columns=["name"])
except RuntimeError as e:
ZELogger.log(
{
"level": "EXCEPTION",
"message": f"Failed to list datasets under {root_dataset}."
},
exit_on_error=True)
for c in [line for line in clones.splitlines()]:
if zfs_utility.dataset_exists(f"{c}@{snap_suffix}",
zfs_type="snapshot"):
if c == list_dataset:
child = ""
else:
child = zfs_utility.dataset_child_name(c)
clone_props = zedenv.lib.be.properties(c, [["canmount", "off"]])
clone_data.append({
"snapshot": f"{c}@{snap_suffix}",
"properties": clone_props,
"datasetchild": child
})
else:
ZELogger.log(
{
"level": "EXCEPTION",
"message": f"Failed to find snapshot {c}@{snap_suffix}."
},
exit_on_error=True)
return clone_data
def test_is_not_snapshot(snapname):
assert zfs_utility.is_snapshot(snapname) is False
def configure_boot_environment_list(be_root: str, columns: list,
scripting: Optional[bool]) -> list:
"""
Converts a list of boot environments with their properties to be printed
to a list of column separated strings.
"""
boot_environments = zedenv.lib.be.list_boot_environments(be_root, columns)
"""
Add an active column.
The other columns were ZFS properties, and the active column is not,
which is why they were added separately
"""
unformatted_boot_environments = []
for env in boot_environments:
if not zfs_utility.is_snapshot(env['name']):
# Add name column
boot_environment_entry = [
zfs_utility.dataset_child_name(env['name'])
]
# Add active column
active = ""
if pyzfscmds.system.agnostic.mountpoint_dataset(
"/") == env['name']:
active = "N"
if zedenv.lib.be.bootfs_for_pool(
zedenv.lib.be.dataset_pool(env['name'])) == env['name']:
active += "R"
boot_environment_entry.append(active)
# Add mountpoint
dataset_mountpoint = pyzfscmds.system.agnostic.dataset_mountpoint(
env['name'])
if dataset_mountpoint:
boot_environment_entry.append(dataset_mountpoint)
else:
boot_environment_entry.append("-")
# Add origin column
if 'origin' in env:
origin_list = env['origin'].split("@")
origin_ds_child = origin_list[0].rsplit('/', 1)[-1]
if zfs_utility.is_snapshot(env['origin']):
origin = f'{origin_ds_child}@{origin_list[1]}'
else:
origin = env['origin']
boot_environment_entry.append(origin)
# Add creation
if 'creation' in env:
boot_environment_entry.append(env['creation'])
unformatted_boot_environments.append(boot_environment_entry)
columns.insert(1, 'active')
columns.insert(2, 'mountpoint')
# Set minimum column width to name of column plus one
widths = [len(l) + 1 for l in columns]
# Check for largest column entry and use as width.
for ube in unformatted_boot_environments:
for i, w in enumerate(ube):
if len(w) > widths[i]:
widths[i] = len(w)
# Add titles
formatted_boot_environments = []
if not scripting:
titles = [t.title() for t in columns]
formatted_boot_environments.append(
format_boot_environment(titles, scripting, widths))
# Add entries
formatted_boot_environments.extend([
format_boot_environment(b, scripting, widths)
for b in unformatted_boot_environments
])
return formatted_boot_environments
