pyproject.toml

[tool.ruff]
# Reflects the code that already exists rather than imposing a new width on it.
# Nothing here is under 120 by accident; tighten this if the style ever changes.
line-length = 145
target-version = "py311"
extend-exclude = ["vendor", "build", "dist", ".packaging-venv", "runtime-tools"]

[tool.ruff.lint]
# Deliberately modest: correctness and import hygiene, not style opinions.
#   E/W  pycodestyle    F    pyflakes
#   I    import order   UP   pyupgrade
#   B    bugbear
select = ["E", "W", "F", "I", "UP", "B"]

ignore = [
    # FastAPI's whole dependency system is function calls in argument defaults:
    # `file: UploadFile = File(...)`. This rule is a false positive here.
    "B008",
]

[tool.ruff.lint.per-file-ignores]
# Tests re-import and shadow deliberately while arranging fixtures.
"backend/tests/*" = ["E501"]