|
1
|
|
|
""" |
|
2
|
|
|
The bearlib is an optional library designed to ease the task of any Bear. Just |
|
3
|
|
|
as the rest of coala the bearlib is designed to be as easy to use as possible |
|
4
|
|
|
while offering the best possible flexibility. |
|
5
|
|
|
""" |
|
6
|
|
|
|
|
7
|
|
|
from coalib.settings.FunctionMetadata import FunctionMetadata |
|
8
|
|
|
|
|
9
|
|
|
|
|
10
|
|
|
def deprecate_settings(**depr_args): |
|
11
|
|
|
""" |
|
12
|
|
|
The purpose of this decorator is to allow passing old settings names to |
|
13
|
|
|
bears due to the heavy changes in their names. |
|
14
|
|
|
|
|
15
|
|
|
>>> @deprecate_settings(new='old') |
|
16
|
|
|
... def run(new): |
|
17
|
|
|
... print(new) |
|
18
|
|
|
|
|
19
|
|
|
Now we can simply call the bear with the deprecated setting, we'll get a |
|
20
|
|
|
warning - but it still works! |
|
21
|
|
|
|
|
22
|
|
|
>>> run(old="Hello world!") |
|
23
|
|
|
The setting `old` is deprecated. Please use `new` instead. |
|
24
|
|
|
Hello world! |
|
25
|
|
|
>>> run(new="Hello world!") |
|
26
|
|
|
Hello world! |
|
27
|
|
|
|
|
28
|
|
|
The metadata for coala has been adjusted as well: |
|
29
|
|
|
|
|
30
|
|
|
>>> list(run.__metadata__.non_optional_params.keys()) |
|
31
|
|
|
['new'] |
|
32
|
|
|
>>> list(run.__metadata__.optional_params.keys()) |
|
33
|
|
|
['old'] |
|
34
|
|
|
|
|
35
|
|
|
You cannot deprecate an already deprecated setting: |
|
36
|
|
|
|
|
37
|
|
|
>>> @deprecate_settings(old='very_old', new='old') |
|
38
|
|
|
... def run(new): pass |
|
39
|
|
|
Traceback (most recent call last): |
|
40
|
|
|
... |
|
41
|
|
|
KeyError: 'old' |
|
42
|
|
|
|
|
43
|
|
|
:param depr_args: A dictionary of settings as keys and their deprecated |
|
44
|
|
|
names as values. |
|
45
|
|
|
""" |
|
46
|
|
|
def _deprecate_decorator(func): |
|
47
|
|
|
|
|
48
|
|
|
def wrapping_function(*args, **kwargs): |
|
49
|
|
|
for arg, deprecated_arg in depr_args.items(): |
|
50
|
|
|
if deprecated_arg in kwargs and arg not in kwargs: |
|
51
|
|
|
print("The setting `{}` is deprecated. Please use `{}` " |
|
52
|
|
|
"instead.".format(deprecated_arg, arg)) |
|
53
|
|
|
kwargs[arg] = kwargs[deprecated_arg] |
|
54
|
|
|
del kwargs[deprecated_arg] |
|
55
|
|
|
return func(*args, **kwargs) |
|
56
|
|
|
|
|
57
|
|
|
new_metadata = FunctionMetadata.from_function(func) |
|
58
|
|
|
for arg, deprecated_arg in depr_args.items(): |
|
59
|
|
|
new_metadata.add_alias(arg, deprecated_arg) |
|
60
|
|
|
wrapping_function.__metadata__ = new_metadata |
|
61
|
|
|
|
|
62
|
|
|
return wrapping_function |
|
63
|
|
|
|
|
64
|
|
|
return _deprecate_decorator |
|
65
|
|
|
|
coala-analyzer /
coala
