1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
# ========================================================================== #
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2022 Maxim Devaev <[email protected]> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program 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 General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
import os
from typing import List
from typing import Dict
from typing import IO
from typing import Any
import yaml
import yaml.nodes
import yaml.resolver
import yaml.constructor
from .. import tools
# =====
def load_yaml_file(path: str) -> Any:
with open(path) as yaml_file:
try:
return yaml.load(yaml_file, _YamlLoader)
except Exception as err:
# Reraise internal exception as standard ValueError and show the incorrect file
raise ValueError(f"Invalid YAML in the file {path!r}:\n{tools.efmt(err)}") from None
# =====
class _YamlLoader(yaml.SafeLoader):
def __init__(self, yaml_file: IO) -> None:
super().__init__(yaml_file)
self.__root = os.path.dirname(yaml_file.name)
def include(self, node: yaml.nodes.Node) -> Any:
incs: List[str]
if isinstance(node, yaml.nodes.SequenceNode):
incs = [
str(child)
for child in self.construct_sequence(node)
if isinstance(child, (int, float, str))
]
else: # Trying scalar for the fallback
incs = [str(self.construct_scalar(node))] # type: ignore
return self.__inner_include(list(filter(None, incs)))
def __inner_include(self, incs: List[str]) -> Any:
tree: Dict = {}
for inc in filter(None, incs):
assert inc, inc
inc_path = os.path.join(self.__root, inc)
if os.path.isdir(inc_path):
for child in sorted(os.listdir(inc_path)):
child_path = os.path.join(inc_path, child)
if os.path.isfile(child_path) or os.path.islink(child_path):
tools.merge(tree, (load_yaml_file(child_path) or {}))
else: # Try file
tools.merge(tree, (load_yaml_file(inc_path) or {}))
return tree
_YamlLoader.add_constructor("!include", _YamlLoader.include)
# =====
def _disable_some_bools() -> None:
# https://stackoverflow.com/questions/36463531
resolvers = yaml.resolver.Resolver.yaml_implicit_resolvers
for key in "oOyYnN":
resolvers[key] = [
resolver
for resolver in resolvers[key]
if resolver[0] != "tag:yaml.org,2002:bool"
]
if len(resolvers) == 0:
del resolvers[key]
_disable_some_bools()
|
