grr

A small local Git review app. Browse a unified diff, add line comments, and send the review back to your terminal.

Currently tested on Fedora Linux 44. macOS support is planned.

Install

Requires Rust 1.90+, Node.js 22.20+ (Node 22), npm, and system libgit2 1.9.x.

sudo dnf install webkit2gtk4.1-devel libgit2-devel openssl-devel \
  libappindicator-gtk3-devel librsvg2-devel libxdo-devel
sudo dnf group install "c-development"

npm ci
npm run install:local

Make sure Cargo's bin directory is on your PATH. Installation includes the Linux desktop icon. Clipboard copying requires wl-copy from wl-clipboard.

Use

grr
grr ../another-project
grr --base main

The app detects the base branch automatically. Uncommitted changes open as a separate virtual commit; use the commit picker to review individual commits or the whole branch.

Add comments with the line's + button. Ctrl+Enter approves or shares comments; Ctrl+Alt+Enter also copies the result. Press ? for all shortcuts. Closing the window cancels the review.

Reviews stay local and results are printed to stdout. Use npm run uninstall:local to remove the app.

See CONTRIBUTING.md for development and tests.

License

MIT, including the app icon. Third-party dependencies retain their own licenses.