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
|
# Copyright (c) 2016 Will Thames <will@thames.id.au>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
from ansiblelint.rules import AnsibleLintRule
class CommandHasChangesCheckRule(AnsibleLintRule):
id = '301'
shortdesc = 'Commands should not change things if nothing needs doing'
description = (
'Commands should either read information (and thus set '
'``changed_when``) or not do something if it has already been '
'done (using creates/removes) or only do it if another '
'check has a particular result (``when``)'
)
severity = 'HIGH'
tags = ['command-shell', 'idempotency', 'ANSIBLE0012']
version_added = 'historic'
_commands = ['command', 'shell', 'raw']
def matchtask(self, file, task):
if task["__ansible_action_type__"] == 'task':
if task["action"]["__ansible_module__"] in self._commands:
return 'changed_when' not in task and \
'when' not in task and \
'creates' not in task['action'] and \
'removes' not in task['action']
|
