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Merge remote-tracking branch 'origin/pr/111'

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* origin/pr/111:
  Add tests for --tree option of qvm-ls
  Sort domains in network tree list
  network tree manpage entry added
  added feature to list domains as network tree
This commit is contained in:
Marek Marczykowski-Górecki 2019-11-09 15:26:59 +01:00
commit 6e76d1c928
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3 changed files with 125 additions and 7 deletions
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5
doc/manpages/qvm-ls.rst
View File

@ -62,6 +62,11 @@ Options
Give plain list of VM names, without header or separator. Useful in scripts.
Same as --raw-data --fields=name
.. option:: --tree, -t
List domains as a network tree. Domains are sorted as they are connected to
their netvms. Names are indented relative to the number of connected netvms.
.. option:: --disk, -d
Same as --format=disk, for compatibility with Qubes 3.x

51
qubesadmin/tests/tools/qvm_ls.py
View File

@ -120,6 +120,57 @@ class TC_50_List(qubesadmin.tests.QubesTestCase):
'dom0\n'
'test-vm\n')
def test_103_network_tree(self):
app = TestApp()
app.domains = TestVMCollection(
[
('dom0', TestVM('dom0')),
('test-vm-temp', TestVM('test-vm-temp')),
('test-vm-proxy', TestVM('test-vm-proxy')),
('test-vm-1', TestVM('test-vm-1')),
('test-vm-2', TestVM('test-vm-2')),
('test-vm-3', TestVM('test-vm-3')),
('test-vm-4', TestVM('test-vm-4')),
('test-vm-net-1', TestVM('test-vm-net-1')),
('test-vm-net-2', TestVM('test-vm-net-2')),
]
)
ad = app.domains # For the sake of a 80 character line
ad['dom0'].label = 'black'
ad['test-vm-temp'].template = TestVM('template')
ad['test-vm-net-1'].netvm = None
ad['test-vm-net-1'].provides_network = True
ad['test-vm-net-2'].netvm = None
ad['test-vm-net-2'].provides_network = True
ad['test-vm-proxy'].netvm = TestVM('test-vm-net-2')
ad['test-vm-proxy'].provides_network = True
ad['test-vm-1'].netvm = TestVM('test-vm-net-1')
ad['test-vm-1'].provides_network = False
ad['test-vm-2'].netvm = TestVM('test-vm-proxy')
ad['test-vm-2'].provides_network = False
ad['test-vm-3'].netvm = TestVM('test-vm-proxy')
ad['test-vm-3'].provides_network = False
ad['test-vm-4'].netvm = TestVM('test-vm-net-2')
ad['test-vm-4'].provides_network = False
ad['test-vm-net-1'].connected_vms = [ad['test-vm-1']]
ad['test-vm-proxy'].connected_vms = [ad['test-vm-2'],
ad['test-vm-3']]
ad['test-vm-net-2'].connected_vms = [ad['test-vm-proxy'],
ad['test-vm-4']]
with qubesadmin.tests.tools.StdoutBuffer() as stdout:
qubesadmin.tools.qvm_ls.main(['--tree'], app=app)
self.assertEqual(stdout.getvalue(),
'NAME STATE CLASS LABEL TEMPLATE NETVM\n'
'dom0 Running TestVM black - -\n'
'test-vm-temp Running TestVM - template -\n'
'test-vm-net-1 Running TestVM - - -\n'
'└─test-vm-1 Running TestVM - - test-vm-net-1\n'
'test-vm-net-2 Running TestVM - - -\n'
'└─test-vm-proxy Running TestVM - - test-vm-net-2\n'
' └─test-vm-2 Running TestVM - - test-vm-proxy\n'
' └─test-vm-3 Running TestVM - - test-vm-proxy\n'
'└─test-vm-4 Running TestVM - - test-vm-net-2\n')
class TC_70_Tags(qubesadmin.tests.QubesTestCase):
def setUp(self):

70
qubesadmin/tools/qvm_ls.py
View File

@ -38,6 +38,7 @@ import qubesadmin.spinner
import qubesadmin.tools
import qubesadmin.utils
import qubesadmin.vm
import qubesadmin.exc
#
# columns
@ -68,7 +69,7 @@ class Column(object):
self.__class__.columns[self.ls_head] = self
def cell(self, vm):
def cell(self, vm, insertion=0):
'''Format one cell.
.. note::
@ -78,11 +79,15 @@ class Column(object):
:py:meth:`Column.format` method instead.
:param qubes.vm.qubesvm.QubesVM: Domain to get a value from.
:param int insertion: Intending to shift the value to the right.
:returns: string to display
:rtype: str
'''
value = self.format(vm) or '-'
if insertion > 0 and self.ls_head == 'NAME':
value = '└─' + value
value = ' ' * (insertion-1) + value
return value
@ -387,25 +392,73 @@ class Table(object):
:param domains: Domains to include in the table.
:param list colnames: Names of the columns (need not to be uppercase).
'''
def __init__(self, domains, colnames, spinner, raw_data=False):
def __init__(self, domains, colnames, spinner, raw_data=False,
tree_sorted=False):
self.domains = domains
self.columns = tuple(Column.columns[col.upper().replace('_', '-')]
for col in colnames)
self.spinner = spinner
self.raw_data = raw_data
self.tree_sorted = tree_sorted
def get_head(self):
'''Get table head data (all column heads).'''
return [col.ls_head for col in self.columns]
def get_row(self, vm):
def get_row(self, vm, insertion=0):
'''Get single table row data (all columns for one domain).'''
ret = []
for col in self.columns:
if self.tree_sorted and col.ls_head == 'NAME':
ret.append(col.cell(vm, insertion))
else:
ret.append(col.cell(vm))
self.spinner.update()
return ret
def tree_append_child(self, parent, level):
'''Concatenate the network children of the vm to a list.
:param qubes.vm.qubesvm.QubesVM: Parent vm of the children VMs
'''
childs = list()
for child in parent.connected_vms:
if child.provides_network and child in self.domains:
childs.append((level, child))
childs += self.tree_append_child(child, level+1)
elif child in self.domains:
childs.append((level, child))
return childs
def sort_to_tree(self, domains):
'''Sort the domains as a network tree. It returns a list of sets. Each
tuple stores the insertion of the cell name and the vm object.
:param list() domains: The domains which will be sorted
:return list(tuple()) tree: returns a list of tuple(insertion, vm)
'''
tree = list()
# We need a copy of domains, because domains.remove() is not allowed
# while iterating over it. Besides, the domains should be sorted anyway.
sorted_doms = sorted(domains)
for dom in sorted_doms:
try:
if dom.netvm is None and not dom.provides_network:
tree.append((0, dom))
domains.remove(dom)
# dom0 and eventually others have no netvm attribute
except (qubesadmin.exc.QubesNoSuchPropertyError, AttributeError):
tree.append((0, dom))
domains.remove(dom)
for dom in sorted(domains):
if dom.netvm is None and dom.provides_network:
tree.append((0, dom))
domains.remove(dom)
tree += self.tree_append_child(dom, 1)
return tree
def write_table(self, stream=sys.stdout):
'''Write whole table to file-like object.
@ -417,6 +470,11 @@ class Table(object):
self.spinner.show('please wait...')
table_data.append(self.get_head())
self.spinner.update()
if self.tree_sorted:
insertion_vm_list = self.sort_to_tree(self.domains)
for insertion, vm in insertion_vm_list:
table_data.append(self.get_row(vm, insertion))
else:
for vm in sorted(self.domains):
table_data.append(self.get_row(vm))
self.spinner.hide()
@ -554,6 +612,10 @@ def get_parser():
help='Display specify data of specified VMs. Intended for '
'bash-parsing.')
parser.add_argument('--tree', '-t',
action='store_const', const='tree',
help='sort domain list as network tree')
parser.add_argument('--spinner',
action='store_true', dest='spinner',
help='reenable spinner')
@ -637,7 +699,7 @@ def main(args=None, app=None):
domains = [d for d in domains
if matches_power_states(d, **pwrstates)]
table = Table(domains, columns, spinner, args.raw_data)
table = Table(domains, columns, spinner, args.raw_data, args.tree)
table.write_table(sys.stdout)
return 0