ansible-later/ansiblelater/rules/CheckCompareToEmptyString.py
Robert Kaussow 2df48598ec
refactor: drop default standards version and rename to rules (#752)
BREAKING CHANGE: The option to define a `Standards` version has been removed. Every new rule that is added on upcoming releases is activated by default and will also create errors if triggered. The behavior of rules can be controlled by the existing `rules.exclude_filter` or `rules.warning_filter` options.

BREAKING CHANGE: The option `rules.buildin` has been renamed to `rules.builtin`.

BREAKING CHANGE: The option `rules.standards` has been renamed to `rules.dir`.

BREAKING CHANGE: The option `rules.filter` has been renamed to `rules.include_filter`.
2024-01-25 21:40:15 +01:00

36 lines
1.2 KiB
Python

import re
from ansiblelater.candidate import Template
from ansiblelater.rule import RuleBase
class CheckCompareToEmptyString(RuleBase):
sid = "ANSIBLE0012"
description = 'Don\'t compare to empty string ""'
helptext = "use `when: var` rather than `when: var !=` (or conversely `when: not var`)"
types = ["playbook", "task", "handler", "template"]
def check(self, candidate, settings):
yamllines, errors = self.get_normalized_yaml(candidate, settings)
if not errors:
if isinstance(candidate, Template):
matches = []
jinja_string = re.compile("({{|{%)(.*?)(}}|%})")
for i, line in yamllines:
match = jinja_string.findall(line)
if match:
for item in match:
matches.append((i, item[1]))
yamllines = matches
empty_string_compare = re.compile("[=!]= ?[\"'][\"']")
for i, line in yamllines:
if empty_string_compare.findall(line):
errors.append(self.Error(i, self.helptext))
return self.Result(candidate.path, errors)