arity-pre-commit

A pre-commit hook for arity, a language server, formatter, and linter for the R language.

Distributed as a thin Python package that depends on the arity PyPI package, so pre-commit installs a prebuilt binary wheel—no Rust toolchain or R installation required. Wheels are available for Linux, macOS, and Windows on both x64 and ARM64.

Usage

Add this to your .pre-commit-config.yaml:

repos:
  - repo: https://github.com/jolars/arity-pre-commit
    # arity version
    rev: v0.23.0
    hooks:
      # Lint .R files
      - id: arity-lint
      # Format the same files in place
      - id: arity-format

To apply safe lint autofixes before formatting (arity's fix-then-format pipeline), pass --fix:

- id: arity-lint
  args: [--fix]
- id: arity-format

To check formatting without rewriting files:

- id: arity-format
  args: [--check]

Both hooks pass --force-exclude, so files matched by exclude or extend-exclude in your arity.toml are skipped even though pre-commit names staged files explicitly.

Versioning

Tags mirror arity releases: installing at tag vX.Y.Z gives you arity X.Y.Z. New tags are created automatically when a new arity version is published to PyPI.

License

MIT