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
99
100
101
102
103
104
105
106
107
108
109
110
|
import typing
class SettingParseException(Exception):
pass
class Setting(object):
example: typing.Optional[str] = None
def __init__(self, name: str, help: str=None, example: str=None):
self.name = name
self.help = help
if not example == None:
self.example = example
def parse(self, value: str) -> typing.Any:
return value
def get_example(self):
if not self.example == None:
return "Example: %s" % self.example
else:
return self._format_example()
def _format_example(self):
return None
def format(self, value: typing.Any):
return repr(value)
SETTING_TRUE = ["true", "yes", "on", "y"]
SETTING_FALSE = ["false", "no", "off", "n"]
class BoolSetting(Setting):
example: typing.Optional[str] = "on"
def parse(self, value: str) -> typing.Any:
value_lower = value.lower()
if value_lower in SETTING_TRUE:
return True
elif value_lower in SETTING_FALSE:
return False
return None
class IntSetting(Setting):
example: typing.Optional[str] = "10"
def parse(self, value: str) -> typing.Any:
if value == "0":
return 0
else:
stripped = value.lstrip("0")
if stripped.isdigit():
return int(stripped)
return None
class IntRangeSetting(IntSetting):
example: typing.Optional[str] = None
def __init__(self, n_min: int, n_max: int, name: str, help: str=None,
example: str=None):
self._n_min = n_min
self._n_max = n_max
Setting.__init__(self, name, help, example)
def parse(self, value: str) -> typing.Any:
out = IntSetting.parse(self, value)
if not out == None and self._n_min <= out <= self._n_max:
return out
return None
def _format_example(self):
return "Must be between %d and %d" % (self._n_min, self._n_max)
class OptionsSetting(Setting):
def __init__(self, options: typing.List[str], name: str, help: str=None,
example: str=None,
options_factory: typing.Callable[[], typing.List[str]]=None):
self._options = options
self._options_factory = options_factory
Setting.__init__(self, name, help, example)
def _get_options(self):
if not self._options_factory == None:
return self._options_factory()
else:
return self._options
def parse(self, value: str) -> typing.Any:
value_lower = value.lower()
for option in self._get_options():
if option.lower() == value_lower:
return option
return None
def _format_example(self):
options = self._get_options()
options_str = ["'%s'" % option for option in options]
return "Options: %s" % ", ".join(options_str)
class FunctionSetting(Setting):
def __init__(self, func: typing.Callable[[str], bool], name: str,
help: str=None, example: str=None, format=None):
self._func = func
Setting.__init__(self, name, help, example)
if not format == None:
self.format = format # type: ignore
def parse(self, value: str) -> typing.Any:
return self._func(value)
def sensitive_format(value: typing.Any):
return "*"*16
class SensitiveSetting(Setting):
def format(self, value: typing.Any):
return sensitive_format(value)
|
