Display code metrics

[o2sh]

Summary 💡

Integrate rust-code-analysis into onefetch to extract code metrics such as cognitive and cyclomatic complexity. Additionally, we could introduce the new metric "churn" to identify frequently changing code segments - for that we can use gitoxide to count the number of commits on a file.

Display the aggregated metrics in onefetch's output.

Motivation 🔦

• Developers can quickly identify the codebase complexity.

• Churn metric: Highlighting areas with frequent changes provides insights into potentially high-risk and unstable code segments, aiding in prioritizing bug fixing and refactoring efforts.

Additional Considerations:

• rust-code-analysis currently only supports C++, JavaScript, Python, Rust, and TypeScript.
• Performance impact should be considered during analysis.

[o2sh]

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