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
|
# Copyright (c) Meta Platforms, Inc. and affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
#
import re
from abc import ABC
from typing import Pattern, Union
import libcst
from libcst.codemod import CodemodContext, VisitorBasedCodemodCommand
class RemovePyreDirectiveCommand(VisitorBasedCodemodCommand, ABC):
PYRE_TAG: str
def __init__(self, context: CodemodContext) -> None:
super().__init__(context)
self._regex_pattern: Pattern[str] = re.compile(
rf"^#\s+pyre-{self.PYRE_TAG}\s*$"
)
def leave_EmptyLine(
self, original_node: libcst.EmptyLine, updated_node: libcst.EmptyLine
) -> Union[libcst.EmptyLine, libcst.RemovalSentinel]:
if updated_node.comment is None or not bool(
self._regex_pattern.search(
libcst.ensure_type(updated_node.comment, libcst.Comment).value
)
):
# This is a normal comment
return updated_node
# This is a directive comment matching our tag, so remove it.
return libcst.RemoveFromParent()
class RemovePyreStrictCommand(RemovePyreDirectiveCommand):
"""
Given a source file, we'll remove the any strict tag if the file already
contains it.
"""
DESCRIPTION: str = "Removes the 'pyre-strict' tag from a module."
PYRE_TAG: str = "strict"
class RemovePyreUnsafeCommand(RemovePyreDirectiveCommand):
"""
Given a source file, we'll remove the any unsafe tag if the file already
contains it.
"""
DESCRIPTION: str = "Removes the 'pyre-unsafe' tag from a module."
PYRE_TAG: str = "unsafe"
|
