def test_list_snapshots(self):
res = [s.name for s in snapshots.get_list()]
dirlist = os.listdir(snapshots.mp)
expected = [i for i in dirlist if i.startswith(SNAP_PREFIX)]
expected.remove(u'@apt-snapshot-xxxx-xx-xx_xx:xx:xx-bad-date')
expected.remove(u'@apt-snapshot-bad-date')
self.assertItemsEqual(expected, res)
def delete_older_than(self, timefmt):
older_than = self._parse_older_than_to_datetime(timefmt)
res = True
list_of = snapshots.get_list(older_than=older_than)
list_of.sort(key = lambda x: x.date, reverse = True)
for snap in list_of:
if len(snap.children) < 2 and snap.tag == "":
res &= self.delete(snap)
return res
def test_list_snapshots_older_than(self):
older_than = datetime.datetime(2013, 8, 3)
res = snapshots.get_list(older_than=older_than)
self.assertEqual(len(res), 5)
for i in res:
self.assertTrue(i.date < older_than)
older_than = datetime.datetime(2013, 7, 27)
res = snapshots.get_list(older_than=older_than)
for i in res:
self.assertTrue(i.date < older_than)
self.assertEqual(len(res), 1)
res = snapshots.get_list()
self.assertEqual(len(res), 16)
older_than = "2013-08-07_18:00:42"
res = snapshots.get_list(older_than=older_than)
older_than = datetime.datetime(2013, 8, 7, 18, 0, 42)
self.assertEqual(len(res), 8)
for i in res:
self.assertTrue(i.date < older_than)
def clean(self, what="apt-cache"):
snapshot_list = snapshots.get_list()
for snapshot in snapshot_list:
path = os.path.join(self.mp, snapshot.name)
if what == "apt-cache":
path = os.path.join(path, "var/cache/apt/archives")
if not os.path.exists(path):
continue
dirlist = os.listdir(path)
for f in dirlist:
fpath = os.path.join(path, f)
if f.endswith(".deb") and os.path.lexists(fpath):
os.remove(fpath)
)
from dpkg_history import DpkgHistory
if __name__ == "__main__":
if os.getuid() != 0 and len(sys.argv) == 1:
print(_("Sorry, you need to be root to run this program"))
sys.exit(1)
if not supported():
print(_("Sorry, your system lacks support for the snapshot feature"))
sys.exit(1)
if len(sys.argv) > 1:
apt_btrfs = AptBtrfsSnapshot(test_mp = sys.argv[1])
else:
apt_btrfs = AptBtrfsSnapshot()
mountpoint = apt_btrfs.mp
snaplist = snapshots.get_list()
snaplist.sort(key = lambda x: x.date)
previous = None
for snap in snaplist:
if previous:
snap.parent = previous
location = os.path.join(mountpoint, snap.name, "var")
date = previous.date
snap.changes = DpkgHistory(var_location=location, since=date)
previous = snap
Snapshot("@").parent = previous
def print(self):
""" pretty print a view of the tree """
self.column = 1
self.orphans = []
self.junctions = {}
no_children = [Snapshot("@")]
for snap in snapshots.get_list():
if len(snap.children) == 0:
no_children.append(snap)
to_print = no_children
to_print.sort(key = self._sort_key)
while True:
try:
snapshot = to_print.pop()
except IndexError:
break
junction = self._print_up_to_junction(snapshot)
to_print.sort(key = self._sort_key)
if junction == None:
# We have reached the end of a disconnected branch
self.orphans.append(self.column)
print(self._spacer() + u"× ")
elif junction not in self.junctions:
# new junction found
print(self._spacer() + u"│ ")
self.junctions[junction] = Junction(junction, self.column)
self.junctions[junction].branches_left_to_print -= 1
else:
# already seen this junction
self.junctions[junction].branches_left_to_print -= 1
self.junctions[junction].columns.append(self.column)
if self.junctions[junction].branches_left_to_print == 0:
to_print.append(junction)
# construct and print branch join up line
cols = self.junctions[junction].columns
joinup = self._spacer(cols[0]) + u"├──"
for i in range(cols[0] + 1, cols[-1]):
if i in cols:
joinup += u"┴──"
else:
joinup += u"───"
joinup += u"┘"
print(joinup)
# clean-ups
self.column = self.junctions[junction].columns[0] - 1
self.orphans = [x for x in self.orphans
if x <= self.column]
del self.junctions[junction]
self.column += 1
def list_older_than(self, timefmt):
older_than = self._parse_older_than_to_datetime(timefmt)
print("Available snapshots older than '%s':" % timefmt)
print(" \n".join(snapshots.get_list(older_than=older_than)))
return True
def list(self):
# The function name will not clash with reserved keywords. It is only
# accessible via self.list()
print("Available snapshots:")
print(" \n".join(snapshots.get_list()))
return True
