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CodeClimate

CodeClimate is a code quality platform that provides automated code review for maintainability, test coverage, and technical debt. It complements SonarQube in the Fawkes quality toolchain.

What CodeClimate Measures

CodeClimate focuses on maintainability. It assigns a letter grade (A–F) based on:

  • Cognitive complexity — How hard is the code to understand?
  • Duplication — What percentage of code is copy-pasted?
  • Method length — Are methods doing too much?
  • File length — Are files too large to navigate easily?
  • Churn vs complexity — Files that change frequently AND are complex are the highest risk.

Configuration

Add a .codeclimate.yml to the repository root to tune analysis:

version: "2"
plugins:
  python:
    enabled: true
  eslint:
    enabled: true
  duplication:
    enabled: true
    config:
      threshold: 50
checks:
  method-length:
    config:
      threshold: 25

Difference from SonarQube

Feature CodeClimate SonarQube
Maintainability grades ✅ Primary focus ✅ Secondary
Security SAST ❌ ✅ Primary focus
Churn/complexity analysis ✅ ❌
CI integration GitHub PR decoration Jenkins + Quality Gate

In Fawkes, SonarQube owns security and coverage gates; CodeClimate provides an additional maintainability lens, especially for identifying high-risk files before they become hard to change.

Integration with Fawkes CI

CodeClimate analysis runs as a GitHub Actions step on pull requests. Results appear as annotations on changed files. A degradation in the maintainability grade blocks merge via the branch protection rule.

See Also