ruff-shared.toml

# Generic shared Ruff configuration file. It should be possible to use this
# file unmodified in different packages provided that one likes the style that
# it enforces.
#
# This file should be used from pyproject.toml as follows:
#
#     [tool.ruff]
#     extend = "ruff-shared.toml"
#
# It can then be extended with project-specific rules. A common additional
# setting in pyproject.toml is tool.ruff.lint.extend-per-file-ignores, to add
# additional project-specific ignore rules for specific paths.
#
# The rule used with Ruff configuration is to disable every non-deprecated
# lint rule that has legitimate exceptions that are not dodgy code, rather
# than cluttering code with noqa markers. This is therefore a reiatively
# relaxed configuration that errs on the side of disabling legitimate rules.
#
# Reference for settings: https://docs.astral.sh/ruff/settings/
# Reference for rules: https://docs.astral.sh/ruff/rules/
exclude = ["docs/**"]
line-length = 79
target-version = "py312"

[format]
docstring-code-format = true

[lint]
ignore = [
    "ANN401",  # sometimes Any is the right type
    "ARG001",  # unused function arguments are often legitimate
    "ARG002",  # unused method arguments are often legitimate
    "ARG005",  # unused lambda arguments are often legitimate
    "BLE001",  # we want to catch and report Exception in background tasks
    "C414",    # nested sorted is how you sort by multiple keys with reverse
    "D102",    # sometimes we use docstring inheritence
    "D104",    # don't see the point of documenting every package
    "D105",    # our style doesn't require docstrings for magic methods
    "D106",    # Pydantic uses a nested Config class that doesn't warrant docs
    "D205",    # our documentation style allows a folded first line
    "EM101",   # justification (duplicate string in traceback) is silly
    "EM102",   # justification (duplicate string in traceback) is silly
    "FBT003",  # positional booleans are normal for Pydantic field defaults
    "FIX002",  # point of a TODO comment is that we're not ready to fix it
    "G004",    # forbidding logging f-strings is appealing, but not our style
    "RET505",  # disagree that omitting else always makes code more readable
    "PLR0911", # often many returns is clearer and simpler style
    "PLR0913", # factory pattern uses constructors with many arguments
    "PLR2004", # too aggressive about magic values
    "PLW0603", # yes global is discouraged but if needed, it's needed
    "S105",    # good idea but too many false positives on non-passwords
    "S106",    # good idea but too many false positives on non-passwords
    "S107",    # good idea but too many false positives on non-passwords
    "S603",    # not going to manually mark every subprocess call as reviewed
    "S607",    # using PATH is not a security vulnerability
    "SIM102",  # sometimes the formatting of nested if statements is clearer
    "SIM117",  # sometimes nested with contexts are clearer
    "TCH001",  # we decided to not maintain separate TYPE_CHECKING blocks
    "TCH002",  # we decided to not maintain separate TYPE_CHECKING blocks
    "TCH003",  # we decided to not maintain separate TYPE_CHECKING blocks
    "TD003",   # we don't require issues be created for TODOs
    "TID252",  # if we're going to use relative imports, use them always
    "TRY003",  # good general advice but lint is way too aggressive
    "TRY301",  # sometimes raising exceptions inside try is the best flow
    "UP040",   # PEP 695 type aliases not yet supported by mypy

    # The following settings should be disabled when using ruff format
    # per https://docs.astral.sh/ruff/formatter/#conflicting-lint-rules
    "W191",
    "E111",
    "E114",
    "E117",
    "D206",
    "D300",
    "Q000",
    "Q001",
    "Q002",
    "Q003",
    "COM812",
    "COM819",
    "ISC001",
    "ISC002",

    # Temporary bug workarounds.
    "S113",    # https://github.com/astral-sh/ruff/issues/12210
]
select = ["ALL"]

[lint.per-file-ignores]
"src/*/handlers/**" = [
    "D103",    # FastAPI handlers should not have docstrings
]
"tests/**" = [
    "C901",    # tests are allowed to be complex, sometimes that's convenient
    "D101",    # tests don't need docstrings
    "D103",    # tests don't need docstrings
    "PLR0915", # tests are allowed to be long, sometimes that's convenient
    "PT012",   # way too aggressive about limiting pytest.raises blocks
    "S101",    # tests should use assert
    "S106",    # tests are allowed to hard-code dummy passwords
    "S301",    # allow tests for whether code can be pickled
    "SLF001",  # tests are allowed to access private members
]

# These are too useful as attributes or methods to allow the conflict with the
# built-in to rule out their use.
[lint.flake8-builtins]
builtins-ignorelist = [
    "all",
    "any",
    "help",
    "id",
    "list",
    "type",
]

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

[lint.mccabe]
max-complexity = 11

[lint.pydocstyle]
convention = "numpy"