ruff.toml

# Ruff configuration — https://docs.astral.sh/ruff/
# Ruff provides both the formatter (a Black-compatible `ruff format`) and, via the linter,
# import sorting (`ruff check --select I`). It is wired into pre-commit; see
# `.pre-commit-config.yaml`.
#
# IMPORTANT: adding this config does NOT reformat the existing codebase. A single repo-wide
# `ruff format` / `ruff check --fix` sweep is intended to happen separately, once, when
# `development` is next merged into `master`. Until then these settings only take effect on the
# files a contributor actually touches (through pre-commit) or when Ruff is run manually — they
# do not retroactively rewrite the tree.

# Match the codebase's prevailing width (~120 cols; p95 ≈ 110, only a handful of lines exceed
# 120) so the eventual one-time reformat stays small.
line-length = 120

# Oldest supported interpreter (see CONTRIBUTING.rst / setup.py).
target-version = "py310"

[format]
# The codebase overwhelmingly uses single-quoted string literals.
quote-style = "single"

[lint]
# Keep the linter deliberately narrow for now: import sorting only (isort-equivalent), nothing
# that would flag or auto-rewrite logic. Broaden this in a later, intentional PR once the tree
# has been formatted.
select = ["I"]

[lint.isort]
known-first-party = ["rnalysis"]