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# Copyright 2022 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/>.
import os
import re
import typing
import importlib.util
from typing import Union
from humps import decamelize
from vyos.defaults import directories
from vyos.util import load_as_module
from vyos.opmode import _normalize_field_names
def load_op_mode_as_module(name: str):
path = os.path.join(directories['op_mode'], name)
name = os.path.splitext(name)[0].replace('-', '_')
return load_as_module(name, path)
def is_op_mode_function_name(name):
if re.match(r"^(show|clear|reset|restart)", name):
return True
return False
def is_show_function_name(name):
if re.match(r"^show", name):
return True
return False
def _nth_split(delim: str, n: int, s: str):
groups = s.split(delim)
l = len(groups)
if n > l-1 or n < 1:
return (s, '')
return (delim.join(groups[:n]), delim.join(groups[n:]))
def _nth_rsplit(delim: str, n: int, s: str):
groups = s.split(delim)
l = len(groups)
if n > l-1 or n < 1:
return (s, '')
return (delim.join(groups[:l-n]), delim.join(groups[l-n:]))
# Since we have mangled possible hyphens in the file name while constructing
# the snake case of the query/mutation name, we will need to recover the
# file name by searching with mangling:
def _filter_on_mangled(test):
def func(elem):
mangle = os.path.splitext(elem)[0].replace('-', '_')
return test == mangle
return func
# Find longest name in concatenated string that matches the basename of an
# op-mode script. Should one prefer to concatenate in the reverse order
# (script_name + '_' + function_name), use _nth_rsplit.
def split_compound_op_mode_name(name: str, files: list):
for i in range(1, name.count('_') + 1):
pair = _nth_split('_', i, name)
f = list(filter(_filter_on_mangled(pair[1]), files))
if f:
pair = (pair[0], f[0])
return pair
return (name, '')
def snake_to_pascal_case(name: str) -> str:
res = ''.join(map(str.title, name.split('_')))
return res
def map_type_name(type_name: type, optional: bool = False) -> str:
if type_name == str:
return 'String!' if not optional else 'String = null'
if type_name == int:
return 'Int!' if not optional else 'Int = null'
if type_name == bool:
return 'Boolean!' if not optional else 'Boolean = false'
if typing.get_origin(type_name) == list:
if not optional:
return f'[{map_type_name(typing.get_args(type_name)[0])}]!'
return f'[{map_type_name(typing.get_args(type_name)[0])}]'
# typing.Optional is typing.Union[_, NoneType]
if (typing.get_origin(type_name) is typing.Union and
typing.get_args(type_name)[1] == type(None)):
return f'{map_type_name(typing.get_args(type_name)[0], optional=True)}'
# scalar 'Generic' is defined in schema.graphql
return 'Generic'
def normalize_output(result: Union[dict, list]) -> Union[dict, list]:
return _normalize_field_names(decamelize(result))
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