Principle:Nautechsystems Nautilus trader Code Quality Gating
| Knowledge Sources | |
|---|---|
| Domains | Build_Tooling, Code_Quality |
| Last Updated | 2026-02-10 08:00 GMT |
Overview
A quality assurance pattern that enforces code style, security, and convention compliance before commits enter version control.
Description
Code Quality Gating intercepts every commit with a battery of automated checks, preventing non-conforming code from entering the repository. This pattern uses pre-commit hooks to run linters, formatters, security scanners, and custom convention checkers in a single pass. It ensures consistency across heterogeneous codebases (Rust, Python, Cython, Shell, YAML, TOML, Docker) without relying on developer discipline alone. The gate operates at two levels: local (developer workstation) and CI (pull request validation).
Usage
Apply this principle when a project spans multiple languages and needs uniform code quality enforcement. It is essential for large teams where manual code review cannot catch all formatting, naming, and security issues. The pre-commit framework provides the standard implementation of this pattern.
Theoretical Basis
The core mechanism is a hook pipeline:
# Abstract algorithm (NOT real implementation)
for hook in configured_hooks:
files = filter_staged_files(hook.types, hook.exclude)
result = hook.run(files)
if result.failed:
block_commit()
report_violations(result)
if result.modified_files:
restage(result.modified_files)
Hooks are categorized by behavior:
- Linters — report violations without modifying files (clippy, mypy, shellcheck)
- Formatters — auto-fix and modify files in place (ruff-format, shfmt, cargo fmt)
- Scanners — detect security issues (gitleaks, detect-private-key)
- Convention checkers — enforce project-specific rules (custom shell scripts)