rwnd

Rewind your dependency history. Analyze any GitHub repo and see how node_modules, .venv, vendor, or target directories have grown over time.

Features

• 6 Languages Supported: Node.js, Python, Go, Rust, Ruby, PHP
• ASCII Charts: Visualize bundle size growth over time in your terminal
• Smart Sampling: Automatically samples commits for large repos
• Fun Stats: "Your node_modules is equivalent to 75 floppy disks!"
• Blame View: See which commits caused the biggest size increases

Install

npm install -g rwnd

Usage

# Auto-detect language
rwnd facebook/react

# Specify language explicitly
rwnd pallets/flask --language python
rwnd rust-lang/rust -l rust
rwnd rails/rails -l ruby

# Limit commits analyzed
rwnd expressjs/express --commits 20

Supported Languages

| Language | What's Measured | Detection | |----------|-----------------|-----------| | Node.js | node_modules/ | package.json | | Python | .venv/ | requirements.txt, pyproject.toml, Pipfile | | Go | Go module cache | go.mod | | Rust | target/ + .cargo/ | Cargo.toml | | Ruby | vendor/bundle/ | Gemfile | | PHP | vendor/ | composer.json |

Example Output

Bundle Size Over Time

 108.2 MB │  █
          │  █
          │ ██
  93.9 MB │ ██
          │███
  79.6 MB │███
          └───
           2017 → 2024

Growth: +28.6 MB (+35.9%)

Summary
  Current size:    108.2 MB
  Starting size:   79.6 MB
  Commits analyzed: 30
  Current deps:    619 total (16 direct)

Your node_modules is equivalent to 75 floppy disks!

Heaviest Dependencies
  1. typescript                    49.8 MB
  2. prettier                      9.1 MB
  3. rxjs                          4.9 MB

Biggest Size Increases
  1. +18.2 MB   f5cc764 v4.2.1
  2. +10.4 MB   42fd8d3 Add URL support

How It Works

1. Clones the repo (shallow, no checkout)
2. Walks the commit history on main/master branch
3. For each sampled commit:
   • Checks out the commit
   • Installs dependencies (npm/pip/cargo/etc.)
   • Measures the dependency directory size
4. Displays results as ASCII chart with stats

CLI Options

Options:
  --commits, -c   Max commits to analyze (default: 30)
  --language, -l  Force language: node, python, go, rust, ruby, php
  --help          Show help

Development

git clone https://github.com/kylemclaren/rwnd
cd rwnd
npm install
npm run build
npm link

# Run locally
rwnd sindresorhus/is --commits 5

Built With

• Ink - React for CLIs
• simple-git - Git commands in Node.js

License

MIT