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priority.py
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# Copyright 2024 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library. If not, see <http://www.gnu.org/licenses/>.
from pathlib import Path
from typing import List
from vyos.xml_ref import load_reference
from vyos.base import Warning as Warn
def priority_data(d: dict) -> list:
def func(d, path, res, hier):
for k,v in d.items():
if not 'node_data' in v:
continue
subpath = path + [k]
hier_prio = hier
data = v.get('node_data')
o = data.get('owner')
p = data.get('priority')
# a few interface-definitions have priority preceding owner
# attribute, instead of within properties; pass in descent
if p is not None and o is None:
hier_prio = p
if o is not None and p is None:
p = hier_prio
if o is not None and p is not None:
o = Path(o.split()[0]).name
p = int(p)
res.append((subpath, o, p))
if isinstance(v, dict):
func(v, subpath, res, hier_prio)
return res
ret = func(d, [], [], 0)
ret = sorted(ret, key=lambda x: x[0])
ret = sorted(ret, key=lambda x: x[2])
return ret
def get_priority_data() -> list:
xml = load_reference()
return priority_data(xml.ref)
def priority_sort(sections: List[list[str]] = None,
owners: List[str] = None,
reverse=False) -> List:
if sections is not None:
index = 0
collection: List = sections
elif owners is not None:
index = 1
collection = owners
else:
raise ValueError('one of sections or owners is required')
l = get_priority_data()
m = [item for item in l if item[index] in collection]
n = sorted(m, key=lambda x: x[2], reverse=reverse)
o = [item[index] for item in n]
# sections are unhashable; use comprehension
missed = [j for j in collection if j not in o]
if missed:
Warn(f'No priority available for elements {missed}')
return o

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