archdoc/PR_DESCRIPTION.md

PR: Major improvements to WTIsMyCode

Summary

Comprehensive refactoring and feature additions to WTIsMyCode — the Python architecture documentation generator. This PR improves code quality, adds new features, and significantly enhances the development experience.

Stats: 24 files changed, ~3900 insertions, ~1400 deletions, 50 tests

Changes

🏗️ Architecture

• Decomposed monolithic main.rs into commands/ module structure (generate, init, check, stats)
• Added workspace Cargo.toml for unified builds across both crates
• New cycle_detector module with DFS-based dependency cycle detection

🐍 Python Analyzer

• Full AST traversal — properly walks all statement types (if/for/while/try/with/match)
• Function signatures — extracts parameter names, types, defaults, return types
• Method detection — distinguishes methods from standalone functions via self/cls parameter
• Docstring extraction — parses first line of docstrings for symbol documentation
• Module path computation — correctly computes module IDs from src_roots config

✨ New Features

• stats command — project statistics with colored output and progress bar
• Config validation — validates project root, language, scan paths, cache age, file size formats
• Cycle detection — finds circular dependencies in module graph, shown in critical points section
• --dry-run flag — preview what would be generated without writing files
• Dynamic project data — uses config project name and current date instead of hardcoded values
• Real usage examples — generates Python import/call examples from analyzed symbols
• Skip-unchanged optimization — writer skips files that haven't changed

🧹 Code Quality

• Zero unwrap() calls in non-test code — proper error handling throughout
• Zero clippy warnings — all lints resolved
• 50 tests — unit tests for config validation, cycle detection, caching, integration detection, error handling, and full pipeline integration tests

📚 Documentation

• README.md — badges, full command reference, configuration table, architecture overview
• CHANGELOG.md — complete changelog for this branch

Testing

cargo test        # 50 tests, all passing
cargo clippy      # 0 warnings
cargo build       # clean build

Breaking Changes

None. All existing functionality preserved.