🔍 Rustlens

A blazing-fast Rust code inspector for the terminal

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Rustlens is a terminal-based application for exploring Rust codebases. It parses your Rust source files and provides an interactive interface to browse functions, structs, enums, traits, and more — all without leaving your terminal.

Built with Ratatui for a smooth, responsive TUI experience.

✨ Features

• 📦 Code Analysis — Parses Rust source files using syn:

  • Functions (parameters, return types, async/const/unsafe)
  • Structs (fields, derives, generics)
  • Enums (variants with all field types)
  • Traits (methods, associated types, supertraits)
  • Impl blocks (inherent and trait implementations)
  • Modules, Type aliases, Constants, Statics

• 🔍 Smart Search — Fuzzy matching with real-time filtering

• 📋 Dependency Analysis — Visualize Cargo.toml dependencies

• 🎨 Multiple Themes — Default Dark, Nord, Catppuccin Mocha, Dracula

• ⚡ Smooth Animations — Selection highlights, tab transitions

• ⌨️ Vim-style Navigation — j/k for movement, / for search

📦 Installation

From crates.io (recommended)

With Rust and Cargo installed:

cargo install rustlens

From source

git clone https://github.com/yashksaini-coder/vizier.git
cd vizier
cargo install --path .
# or: make install

Pre-built binaries

See Releases for Linux (x86_64), macOS (x86_64, Apple Silicon), and Windows (x86_64) binaries.

🚀 Usage

# Cd into the project directory
cd path/to/rust-project
# Analyze current directory (must be a Cargo project root or folder with .rs files)
rustlens

⌨️ Keyboard Shortcuts

Key	Action
Focus & panels
Tab / Shift+Tab	Next / previous panel (search → list → inspector)
/	Focus search
Esc	Clear search, back to list, or close popup
List & inspector
↑ / ↓ or j / k	Move selection / scroll inspector
Enter / → / l	Open item / focus inspector
← / h	Back to list (e.g. exit crate view)
Home	First item
G / End	Last item
PgUp / PgDn	Page up / down
Tabs
1 2 3 4	Types · Functions · Modules · Crates
Crates tab only
o	Open docs.rs in browser
c	Open crates.io in browser
Other
C	Open Copilot chat (ask about current item)
t	Cycle theme
S	Settings overlay
?	Toggle help
q / Esc	Quit
Links
g	Open GitHub repo in browser
s	Open Sponsor page in browser

🛠️ Development

# See all commands
make

# Install development tools
make dev-setup

# Full check (format, lint, typecheck)
make check

# Run linter
make lint

# Run tests
make test

# Build release
make release

📤 Releasing (maintainers)

• Publish to crates.io (after cargo login): make publish-dry-run then make publish. The crate is published as rustlens.
• GitHub Release: Push a version tag (e.g. v0.1.0). The release workflow builds binaries for Linux, macOS (Intel + Apple Silicon), and Windows and creates a release. Optionally set CARGO_REGISTRY_TOKEN in repo secrets to auto-publish to crates.io on tag push.

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feat/amazing-feature)
3. Commit your changes using Conventional Commits
4. Push to the branch (git push origin feat/amazing-feature)
5. Open a Pull Request

Commit Convention

We use Conventional Commits. Examples:

• feat: add new search feature
• fix: correct parsing error
• docs: update README
• refactor!: change API structure (breaking change)

Star History

📄 License

This project is licensed under the MIT License.

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