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"""All tasks should be have name come first."""
from __future__ import annotations
import functools
import sys
from typing import TYPE_CHECKING
from ansiblelint.rules import AnsibleLintRule
if TYPE_CHECKING:
from ansiblelint.errors import MatchError
from ansiblelint.file_utils import Lintable
from ansiblelint.utils import Task
SORTER_TASKS = (
"name",
# "__module__",
# "action",
# "args",
None, # <-- None include all modules that not using action and *
# "when",
# "notify",
# "tags",
"block",
"rescue",
"always",
)
def get_property_sort_index(name: str) -> int:
"""Return the index of the property in the sorter."""
a_index = -1
for i, v in enumerate(SORTER_TASKS):
if v == name:
return i
if v is None:
a_index = i
return a_index
def task_property_sorter(property1: str, property2: str) -> int:
"""Sort task properties based on SORTER."""
v_1 = get_property_sort_index(property1)
v_2 = get_property_sort_index(property2)
return (v_1 > v_2) - (v_1 < v_2)
class KeyOrderRule(AnsibleLintRule):
"""Ensure specific order of keys in mappings."""
id = "key-order"
shortdesc = __doc__
severity = "LOW"
tags = ["formatting"]
version_added = "v6.6.2"
needs_raw_task = True
_ids = {
"key-order[task]": "You can improve the task key order",
}
def matchtask(
self,
task: Task,
file: Lintable | None = None,
) -> list[MatchError]:
result = []
raw_task = task["__raw_task__"]
keys = [key for key in raw_task if not key.startswith("_")]
sorted_keys = sorted(keys, key=functools.cmp_to_key(task_property_sorter))
if keys != sorted_keys:
result.append(
self.create_matcherror(
f"You can improve the task key order to: {', '.join(sorted_keys)}",
filename=file,
tag="key-order[task]",
),
)
return result
# testing code to be loaded only with pytest or when executed the rule file
if "pytest" in sys.modules:
import pytest
from ansiblelint.rules import RulesCollection # pylint: disable=ungrouped-imports
from ansiblelint.runner import Runner # pylint: disable=ungrouped-imports
@pytest.mark.parametrize(
("test_file", "failures"),
(
pytest.param("examples/playbooks/rule-key-order-pass.yml", 0, id="pass"),
pytest.param("examples/playbooks/rule-key-order-fail.yml", 6, id="fail"),
),
)
def test_key_order_rule(
default_rules_collection: RulesCollection,
test_file: str,
failures: int,
) -> None:
"""Test rule matches."""
results = Runner(test_file, rules=default_rules_collection).run()
assert len(results) == failures
for result in results:
assert result.rule.id == "key-order"
@pytest.mark.parametrize(
("properties", "expected"),
(
pytest.param([], []),
pytest.param(["block", "name"], ["name", "block"]),
pytest.param(
["block", "name", "action", "..."],
["name", "action", "...", "block"],
),
),
)
def test_key_order_property_sorter(
properties: list[str],
expected: list[str],
) -> None:
"""Test the task property sorter."""
result = sorted(properties, key=functools.cmp_to_key(task_property_sorter))
assert expected == result
@pytest.mark.parametrize(
("key", "order"),
(
pytest.param("name", 0),
pytest.param("action", 1),
pytest.param("foobar", SORTER_TASKS.index(None)),
pytest.param("block", len(SORTER_TASKS) - 3),
pytest.param("rescue", len(SORTER_TASKS) - 2),
pytest.param("always", len(SORTER_TASKS) - 1),
),
)
def test_key_order_property_sort_index(key: str, order: int) -> None:
"""Test sorting index."""
assert get_property_sort_index(key) == order
@pytest.mark.parametrize(
("prop1", "prop2", "result"),
(
pytest.param("name", "block", -1),
pytest.param("block", "name", 1),
pytest.param("block", "block", 0),
),
)
def test_key_order_property_sortfunc(prop1: str, prop2: str, result: int) -> None:
"""Test sorting function."""
assert task_property_sorter(prop1, prop2) == result
|
