Merge pull request #1327 from dbungert/basic-part-numbering
filesystem: non-overlapping partition numbering
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commit
924e527b7b
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@ -304,7 +304,7 @@ def _can_delete_raid_vg(device):
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"Cannot delete {devicelabel} as partition {partnum} is part "
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"of the {cdtype} {cdname}.").format(
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devicelabel=labels.label(device),
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partnum=p._number,
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partnum=p.number,
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cdtype=labels.desc(cd),
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cdname=labels.label(cd),
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)
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@ -181,10 +181,10 @@ def _label_partition(partition, *, short=False):
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else:
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p = ""
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if short:
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return p + _("partition {number}").format(number=partition._number)
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return p + _("partition {number}").format(number=partition.number)
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else:
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return p + _("partition {number} of {device}").format(
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number=partition._number, device=label(partition.device))
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number=partition.number, device=label(partition.device))
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@label.register(gaps.Gap)
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@ -309,7 +309,7 @@ def _for_client_disk(disk, *, min_size=0):
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def _for_client_partition(partition, *, min_size=0):
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return types.Partition(
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size=partition.size,
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number=partition._number,
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number=partition.number,
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wipe=partition.wipe,
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preserve=partition.preserve,
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grub_device=partition.grub_device,
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@ -115,9 +115,18 @@ def fsobj__repr(obj):
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return "{}({})".format(type(obj).__name__, ", ".join(args))
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def _do_post_inits(obj):
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for fn in obj._post_inits:
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fn(obj)
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def fsobj(typ):
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def wrapper(c):
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c.__attrs_post_init__ = _set_backlinks
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c.__attrs_post_init__ = _do_post_inits
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c._post_inits = [_set_backlinks]
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class_post_init = getattr(c, '__post_init__', None)
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if class_post_init is not None:
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c._post_inits.append(class_post_init)
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c.type = attributes.const(typ)
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c.id = attr.ib(default=None)
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c._m = attr.ib(repr=None, default=None)
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@ -675,6 +684,15 @@ class Partition(_Formattable):
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resize = attr.ib(default=None)
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partition_type = attr.ib(default=None)
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def __post_init__(self):
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if self.number is not None:
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return
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used_nums = {part.number for part in self.device._partitions
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if part.number is not None}
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possible_nums = {i for i in range(1, len(self.device._partitions) + 1)}
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unused_nums = sorted(list(possible_nums - used_nums))
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self.number = unused_nums.pop(0)
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def available(self):
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if self.flag in ['bios_grub', 'prep'] or self.grub_device:
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return False
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@ -684,18 +702,8 @@ class Partition(_Formattable):
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return True
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return self._fs._available()
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def serialize_number(self):
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return {'number': self._number}
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@property
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def _number(self):
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if self.preserve:
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return self.number
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else:
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return self.device._partitions.index(self) + 1
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def _path(self):
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return partition_kname(self.device.path, self._number)
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return partition_kname(self.device.path, self.number)
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@property
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def boot(self):
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@ -1261,7 +1269,7 @@ class FilesystemModel(object):
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if obj.type == "partition":
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ensure_partitions(obj.device)
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for p in obj.device.partitions():
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if p._number < obj._number and p.id not in emitted_ids:
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if p.number < obj.number and p.id not in emitted_ids:
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return False
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for dep in dependencies(obj):
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if dep.id not in emitted_ids:
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@ -176,8 +176,6 @@ def make_partition(model, device=None, *, preserve=False, size=None,
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offset = gap.offset
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partition = Partition(m=model, device=device, size=size, offset=offset,
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preserve=preserve, **kw)
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if preserve:
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partition.number = len(device._partitions)
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model._actions.append(partition)
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return partition
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@ -692,3 +690,42 @@ class TestAlignmentData(unittest.TestCase):
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# information, so gaps produces numbers that are too small by 1MiB
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# for ptable != 'gpt'
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self.assertTrue(gaps_max <= align_max, f'ptable={ptable}')
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class TestPartitionNumbering(unittest.TestCase):
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def test_basic(self):
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m, d1 = make_model_and_disk(ptable='gpt')
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p1 = make_partition(m, d1)
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p2 = make_partition(m, d1)
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p3 = make_partition(m, d1)
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self.assertEqual(1, p1.number)
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self.assertEqual(2, p2.number)
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self.assertEqual(3, p3.number)
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def test_p1_preserved(self):
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m = make_model()
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m.storage_version = 2
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d1 = make_disk(m, ptable='gpt')
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p1 = make_partition(m, d1, preserve=True, number=1)
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p2 = make_partition(m, d1)
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p3 = make_partition(m, d1)
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self.assertEqual(1, p1.number)
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self.assertEqual(True, p1.preserve)
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self.assertEqual(2, p2.number)
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self.assertEqual(False, p2.preserve)
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self.assertEqual(3, p3.number)
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self.assertEqual(False, p3.preserve)
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def test_p2_preserved(self):
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m = make_model()
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m.storage_version = 2
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d1 = make_disk(m, ptable='gpt')
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p2 = make_partition(m, d1, preserve=True, number=2)
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p1 = make_partition(m, d1)
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p3 = make_partition(m, d1)
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self.assertEqual(1, p1.number)
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self.assertEqual(False, p1.preserve)
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self.assertEqual(2, p2.number)
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self.assertEqual(True, p2.preserve)
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self.assertEqual(3, p3.number)
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self.assertEqual(False, p3.preserve)
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@ -310,7 +310,7 @@ class FilesystemController(SubiquityController, FilesystemManipulator):
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def get_partition(self, disk, number):
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for p in disk.partitions():
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if p._number == number:
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if p.number == number:
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return p
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raise ValueError(f'Partition {number} on {disk.id} not found')
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@ -299,36 +299,34 @@ class TestFlow(TestAPI):
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}
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}
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add_resp = await inst.post('/storage/v2/add_partition', data)
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sda = first(add_resp['disks'], 'id', disk_id)
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sda2 = first(sda['partitions'], 'number', 2)
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self.assertEqual('ext3', sda2['format'])
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[sda] = add_resp['disks']
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[root] = match(sda['partitions'], mount='/')
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self.assertEqual('ext3', root['format'])
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data = {
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'disk_id': disk_id,
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'partition': {
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'number': 2,
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'number': root['number'],
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'format': 'ext4',
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}
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}
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edit_resp = await inst.post('/storage/v2/edit_partition', data)
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add_sda = first(add_resp['disks'], 'id', disk_id)
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add_sda2 = first(add_sda['partitions'], 'number', 2)
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[add_sda] = add_resp['disks']
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[add_root] = match(add_sda['partitions'], mount='/')
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edit_sda = first(edit_resp['disks'], 'id', disk_id)
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edit_sda2 = first(edit_sda['partitions'], 'number', 2)
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[edit_sda] = edit_resp['disks']
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[edit_root] = match(edit_sda['partitions'], mount='/')
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for key in 'size', 'number', 'mount', 'boot':
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self.assertEqual(add_sda2[key], edit_sda2[key], key)
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self.assertEqual('ext4', edit_sda2['format'])
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self.assertEqual(add_root[key], edit_root[key], key)
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self.assertEqual('ext4', edit_root['format'])
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del_resp = await inst.post('/storage/v2/delete_partition', data)
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sda = first(del_resp['disks'], 'id', disk_id)
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self.assertEqual(2, len(sda['partitions']))
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for type in 'Partition', 'Gap':
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pgs = [pg for pg in sda['partitions'] if pg['$type'] == type]
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self.assertEqual(len(pgs), 1)
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[sda] = del_resp['disks']
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[p, g] = sda['partitions']
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self.assertEqual('Partition', p['$type'])
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self.assertEqual('Gap', g['$type'])
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reset_resp = await inst.post('/storage/v2/reset')
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self.assertEqual(orig_resp, reset_resp)
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@ -374,8 +372,9 @@ class TestAdd(TestAPI):
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await inst.post('/storage/v2/reset')
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# these manual steps are expected to be equivalent to just adding
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# the single partition and getting the automatic boot partition
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# these manual steps are expected to be mostly equivalent to just
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# adding the single partition and getting the automatic boot
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# partition
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resp = await inst.post(
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'/storage/v2/add_boot_partition', disk_id=disk_id)
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sda = first(resp['disks'], 'id', disk_id)
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@ -390,6 +389,15 @@ class TestAdd(TestAPI):
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}
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manual_add = await inst.post('/storage/v2/add_partition', data)
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# the only difference is the partition number assigned - when we
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# explicitly add_boot_partition, that is the first partition
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# created, versus when we add_partition and get a boot partition
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# implicitly
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for resp in single_add, manual_add:
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for part in resp['disks'][0]['partitions']:
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part.pop('number')
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part.pop('path')
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self.assertEqual(single_add, manual_add)
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@timeout()
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@ -978,10 +986,11 @@ class TestGap(TestAPI):
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}
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}
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resp = await inst.post('/storage/v2/add_partition', data)
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sda = first(resp['disks'], 'id', 'disk-sda')
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boot = first(sda['partitions'], 'number', 1)
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gap = sda['partitions'][2]
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expected = (10 << 30) - boot['size'] - (4 << 30) - (2 << 20)
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[sda] = resp['disks']
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[boot] = match(sda['partitions'], mount='/boot/efi')
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[p1, p2, gap] = sda['partitions']
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self.assertEqual('Gap', gap['$type'])
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expected = (10 << 30) - p1['size'] - p2['size'] - (2 << 20)
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self.assertEqual(expected, gap['size'])
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async def SKIP_test_two_gaps(self):
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@ -1040,10 +1049,10 @@ class TestRegression(TestAPI):
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}
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}
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resp = await inst.post('/storage/v2/add_partition', data)
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sda = first(resp['disks'], 'id', disk_id)
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sda2 = first(sda['partitions'], 'number', 2)
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sda2.update({'format': 'ext3', 'mount': '/bar'})
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data['partition'] = sda2
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[sda] = resp['disks']
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[part] = match(sda['partitions'], mount='/foo')
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part.update({'format': 'ext3', 'mount': '/bar'})
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data['partition'] = part
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data.pop('gap')
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await inst.post('/storage/v2/edit_partition', data)
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# should not throw an exception complaining about boot
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