ruff.toml

# Exclude a variety of commonly ignored directories.
exclude = [
    ".bzr",
    ".direnv",
    ".eggs",
    ".git",
    ".git-rewrite",
    ".hg",
    ".ipynb_checkpoints",
    ".mypy_cache",
    ".nox",
    ".pants.d",
    ".pyenv",
    ".pytest_cache",
    ".pytype",
    ".ruff_cache",
    ".svn",
    ".tox",
    ".venv",
    ".vscode",
    "__pypackages__",
    "_build",
    "buck-out",
    "build",
    "dist",
    "node_modules",
    "site-packages",
    "venv",
]

# Same as Black.
line-length = 88
indent-width = 4

# Assume Python 3.8
target-version = "py38"

[lint]
# Enable Pyflakes (`F`) and a subset of the pycodestyle (`E`)  codes by default.
# Unlike Flake8, Ruff doesn't enable pycodestyle warnings (`W`) or
# McCabe complexity (`C901`) by default.
select = [
    "B002", # Python does not support the unary prefix increment
    "B007", # Loop control variable {name} not used within loop body
    "B014", # Exception handler with duplicate exception
    "B023", # Function definition does not bind loop variable {name}
    "B026", # Star-arg unpacking after a keyword argument is strongly discouraged
    "B904", # Use raise from to specify exception cause
    "C",  # complexity
    "COM818", # Trailing comma on bare tuple prohibited
    "D",  # docstrings
    "DTZ003",  # Use datetime.now(tz=) instead of datetime.utcnow()
    "DTZ004",  # Use datetime.fromtimestamp(ts, tz=) instead of datetime.utcfromtimestamp(ts)
    "E",  # pycodestyle
    "F",  # pyflakes/autoflake
    "G", # flake8-logging-format
    "I",  # isort
    "ICN001", # import concentions; {name} should be imported as {asname}
    "N804", # First argument of a class method should be named cls
    "N805", # First argument of a method should be named self
    "N815", # Variable {name} in class scope should not be mixedCase
    "PGH004",  # Use specific rule codes when using noqa
    "PLC0414", # Useless import alias. Import alias does not rename original package.
    "PLC", # pylint
    "PLE", # pylint
    "PLR", # pylint
    "PLW", # pylint
    "Q000", # Double quotes found but single quotes preferred
    "RUF006", # Store a reference to the return value of asyncio.create_task
    "S102", # Use of exec detected
    "S103",  # bad-file-permissions
    "S108",  # hardcoded-temp-file
    "S306",  # suspicious-mktemp-usage
    "S307",  # suspicious-eval-usage
    "S313",  # suspicious-xmlc-element-tree-usage
    "S314",  # suspicious-xml-element-tree-usage
    "S315",  # suspicious-xml-expat-reader-usage
    "S316",  # suspicious-xml-expat-builder-usage
    "S317",  # suspicious-xml-sax-usage
    "S318",  # suspicious-xml-mini-dom-usage
    "S319",  # suspicious-xml-pull-dom-usage
    "S320",  # suspicious-xmle-tree-usage
    "S601",  # paramiko-call
    "S602",  # subprocess-popen-with-shell-equals-true
    "S604",  # call-with-shell-equals-true
    "S608",  # hardcoded-sql-expression
    "S609",  # unix-command-wildcard-injection
    "SIM105", # Use contextlib.suppress({exception}) instead of try-except-pass
    "SIM117", # Merge with-statements that use the same scope
    "SIM118", # Use {key} in {dict} instead of {key} in {dict}.keys()
    "SIM201", # Use {left} != {right} instead of not {left} == {right}
    "SIM208", # Use {expr} instead of not (not {expr})
    "SIM212", # Use {a} if {a} else {b} instead of {b} if not {a} else {a}
    "SIM300", # Yoda conditions. Use 'age == 42' instead of '42 == age'.
    "SIM401", # Use get from dict with default instead of an if block
    "T100", # Trace found: {name} used
    "T20",  # flake8-print
    "TID251", # Banned imports
    "TRY004", # Prefer TypeError exception for invalid type
    "TRY302", # Remove exception handler; error is immediately re-raised
    "UP",  # pyupgrade
    "W",  # pycodestyle
]
ignore = [
    "D202",  # No blank lines allowed after function docstring
    "D203",  # 1 blank line required before class docstring
    "D213",  # Multi-line docstring summary should start at the second line
    "D406",  # Section name should end with a newline
    "D407",  # Section name underlining
    "E501",  # line too long
    "E731",  # do not assign a lambda expression, use a def

    # Ignore ignored, as the rule is now back in preview/nursery, which cannot
    # be ignored anymore without warnings.
    # https://github.com/astral-sh/ruff/issues/7491
    # "PLC1901", # Lots of false positives

    # False positives https://github.com/astral-sh/ruff/issues/5386
    "PLC0208", # Use a sequence type instead of a `set` when iterating over values
    "PLR0911", # Too many return statements ({returns} > {max_returns})
    "PLR0912", # Too many branches ({branches} > {max_branches})
    "PLR0913", # Too many arguments to function call ({c_args} > {max_args})
    "PLR0915", # Too many statements ({statements} > {max_statements})
    "PLR2004",  # Magic value used in comparison, consider replacing {value} with a constant variable
    "PLW2901", # Outer {outer_kind} variable {name} overwritten by inner {inner_kind} target
    "UP006", # keep type annotation style as is
    "UP007", # keep type annotation style as is
    # Ignored due to performance: https://github.com/charliermarsh/ruff/issues/2923
    "UP038", # Use `X | Y` in `isinstance` call instead of `(X, Y)`

    # May conflict with the formatter, https://docs.astral.sh/ruff/formatter/#conflicting-lint-rules
    "W191",
    "E111",
    "E114",
    "E117",
    "D206",
    "D300",
    "Q000",
    "Q001",
    "Q002",
    "Q003",
    "COM812",
    "COM819",
    "ISC001",
    "ISC002",

    # Disabled because ruff does not understand type of __all__ generated by a function
    "PLE0605",
]

# Allow fix for all enabled rules (when `--fix`) is provided.
fixable = ["ALL"]
unfixable = []

# Allow unused variables when underscore-prefixed.
dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"

[format]
# Like Black, use double quotes for strings.
quote-style = "double"

# Like Black, indent with spaces, rather than tabs.
indent-style = "space"

# Like Black, respect magic trailing commas.
skip-magic-trailing-comma = false

# Like Black, automatically detect the appropriate line ending.
line-ending = "auto"

# Enable auto-formatting of code examples in docstrings. Markdown,
# reStructuredText code/literal blocks and doctests are all supported.
#
# This is currently disabled by default, but it is planned for this
# to be opt-out in the future.
docstring-code-format = false

# Set the line length limit used when formatting code snippets in
# docstrings.
#
# This only has an effect when the `docstring-code-format` setting is
# enabled.
docstring-code-line-length = "dynamic"

[lint.flake8-import-conventions.extend-aliases]
voluptuous = "vol"
"homeassistant.helpers.area_registry" = "ar"
"homeassistant.helpers.config_validation" = "cv"
"homeassistant.helpers.device_registry" = "dr"
"homeassistant.helpers.entity_registry" = "er"
"homeassistant.helpers.floor_registry" = "fr"
"homeassistant.helpers.issue_registry" = "ir"
"homeassistant.helpers.label_registry" = "lr"
"homeassistant.util.dt" = "dt_util"

[lint.flake8-pytest-style]
fixture-parentheses = false

[lint.flake8-tidy-imports.banned-api]
"async_timeout".msg = "use asyncio.timeout instead"
"pytz".msg = "use zoneinfo instead"

[lint.isort]
force-sort-within-sections = true
known-first-party = [
    "homeassistant",
]
combine-as-imports = true
split-on-trailing-comma = false

[lint.per-file-ignores]

# Allow for main entry & scripts to write to stdout
"homeassistant/__main__.py" = ["T201"]
"homeassistant/scripts/*" = ["T201"]
"script/*" = ["T20"]

[lint.mccabe]
max-complexity = 25