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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

[0.1.3] - 2026-04-12

Added

  • codelens estimate — Multi-model cost estimation subcommand
    • Four pluggable models via EstimationModel trait:
      • COCOMO Basic (Boehm 1981) — classic E = a × KLOC^b × EAF
      • COCOMO II (Boehm 2000) — modern calibration with 5 scale factors
      • Putnam/SLIM (1978) — Rayleigh-curve conservative estimate
      • LOCOMO — LLM token cost model (AI-era code generation)
    • --model all (default) shows comparison table across all four models
    • Per-language cost breakdown for single model mode
    • All model parameters configurable via CLI flags (--eaf, --ck, --d0, --llm-input-price, etc.)
    • Full output format support (console, JSON, CSV, Markdown, HTML with Chart.js)
  • Default codelens output now includes health score and estimation comparison alongside statistics
  • HTML estimation templates with consistent header/footer matching existing report pages

Changed

  • Report enum extended with Estimation and EstimationComparison variants
  • CLI help and examples updated to reflect new estimate subcommand

Removed

  • --show-estimate flag (superseded by default output including estimation)

[0.1.2] - 2026-04-12

Fixed

  • Deadlock in parallel walker when scanning repositories with more than 1000 files, caused by bounded channel consumer starting only after blocking run() call returns; fixed by running consumer concurrently via std::thread::scope

[0.1.1] - 2026-04-11

Fixed

  • Hotspot analysis returning empty results due to path prefix mismatch (./src/main.rs vs src/main.rs)

[0.1.0] - 2026-04-11

Added

  • codelens health — Code health scoring with pluggable scoring models
    • Five dimensions: complexity, function size, comment ratio, file size, nesting depth
    • Three-level reporting: project, directory, and file
    • Grades from A (best) to F (worst)
    • ScoringModel trait for custom scoring strategies
  • codelens hotspot — Change hotspot detection via churn × complexity
    • Integrates git change frequency with code complexity
    • Risk levels: HIGH / MED / LOW
    • Configurable time window (--since 30d, 6m, 1y, or YYYY-MM-DD)
  • codelens trend — Codebase trend tracking with snapshots
    • Save snapshots with --save and optional --label
    • Compare snapshots with --compare (supports latest, latest~N, date prefix)
    • Per-language change tracking (Added / Removed / Changed)
    • Snapshots stored in .codelens/snapshots/ as JSON
  • Git module (git/) for repository integration via system git CLI
  • Full output format support (console, JSON, CSV, Markdown, HTML) for all new commands
  • Interactive HTML reports with Chart.js (radar chart for health, bar charts for hotspot/trend)
  • Colored CLI help with clap Styles and grouped examples

Changed

  • OutputFormat trait generalized with Report enum to support multiple report types
  • Project description updated to "High performance code analysis tool"
  • P90 percentile used for nesting depth aggregation (instead of max) to reduce outlier impact

Fixed

  • --top argument name conflict between subcommands and OutputArgs

[0.0.3] - 2026-04-10

Added

  • Byte-level state machine counter for fast line classification
  • TokenTrie and ProcessMask (bloom filter) for unified token matching
  • Precompiled regex patterns with OnceLock caching
  • Criterion benchmarks for byte-level counter

Changed

  • FileAnalyzer switched to byte-level state machine
  • Per-thread buffer reuse, read bytes instead of String for zero-copy processing

[0.0.2] - 2026-01-26

Added

  • Multiline string support for Python, Rust, and other languages
  • Improved filter rules for file exclusion

Fixed

  • Homebrew formula update workflow

[0.0.1] - 2026-01-23

Added

  • Initial Rust implementation of codelens
  • High-performance parallel file traversal using ignore crate
  • Support for 70+ programming languages via TOML definitions
  • Multiple output formats: Console, JSON, CSV, Markdown, HTML (with Chart.js)
  • Smart directory exclusion based on project type detection
  • Cyclomatic complexity analysis (function count, nesting depth)
  • Respects .gitignore rules automatically
  • Cross-platform support (Linux, macOS, Windows)
  • Configuration file support (.codelens.toml)
  • CI/CD pipeline with GitHub Actions
  • Homebrew tap for macOS/Linux installation