🧹 Eutaxis

Eutaxis (from Ancient Greek εὖ “good” + τάξις “arrangement, ordering”) is a command-line tool for normalizing and cleaning up project code layouts. It focuses on consistent headers, include ordering, and formatting across common project structures.

Currently supported:

• Python projects:
  • isort and ruff
  • optional licence headers
• Meson projects:
  • Lark-based argument reordering for many functions
  • muon fmt
  • optional licence headers
• C++ projects:
  • header guards
  • include ordering
  • Meson targets
  • simple qualifier reordering
  • optional licence headers

📦 Installation

Eutaxis is available on PyPI and can be installed as usual, for example:

pip install eutaxis

🚀 Usage

Eutaxis is driven by “workers” (one per language):

eutaxis <worker> [options]

Examples:

# Clean a Python project in the current directory
eutaxis python

# Clean a Meson project
eutaxis meson -c muon.cfg

# Clean a C++ project using .eutaxis config
eutaxis cpp

To see options:

eutaxis -h
eutaxis python -h
eutaxis meson -h
eutaxis cpp -h

⚙️ C++ Configuration

C++ clean-up is configured via a .eutaxis YAML file in the project root, for example:

fix_meson: false
license: MPL-2.0
url: https://github.com/your/repo
project_name: mylib
ignore_parent_header:
  - include/mylib/detail
ignore_folders:
  - external

The C++ worker expects the following layout:

• headers: include/<project_name>/...
• sources (optional): src/, test/, perf/, tools/

🧠 Behaviour Overview

• Licence/file headers:
  • Inserts or normalizes licence/file headers for supported languages.
• C++:
  • Normalizes header guards.
  • Maintains “base headers” <dir>.hpp with an IWYU export block.
  • Re-sorts and groups includes into:
    • C++ standard headers
    • other system headers
    • project headers
    • relative headers
  • Adjusts a few qualifiers (e.g. constexpr explicit → explicit constexpr).
  • Updates Meson snippets for per-source targets.
• Python and Meson:
  • Runs formatters:
    • Python: isort, ruff format
    • Meson: Lark-based argument reordering for many functions, muon fmt

⌨️ Shell Completion

Eutaxis integrates with argcomplete. Once argcomplete is installed and enabled in your shell,

eutaxis <TAB>

can be used to complete available workers and options.

📜 Licence

This library is licensed under the terms of the Mozilla Public Licence 2.0, provided in License.