Starscope is a code indexer, search and navigation tool for Ruby and Golang, with a design intended to make it easy to add support for other languages.

Inspired by the extremely popular Ctags and Cscope utilities, Starscope can answer a lot of questions about your code. It can tell you:

• where methods are defined
• where methods are called
• where variables are assigned
• where symbols are used
• where files and libraries are imported or required

While Ctags already supports Ruby and Go, it can only tell you where things are defined. Cscope can answer a lot more of your questions, but it is limited to just the C language family. Starscope was written to combine the power of Cscope with the flexibility of Ctags, bringing full code indexing to as many developers as possible.

Install it as a gem:

$ gem install starscope

Build your database by just running it in the project directory:

$ cd ~/my-project
$ starscope

Ask it things directly:

$ starscope -q calls,new # Lists all callers of new

Export it to various existing formats for automatic integration with your editor:

$ starscope -e ctags
$ starscope -e cscope

• User Guide
• Version History
• Language Support
• Database Format

• Starscope is a supported backend for CodeQuery.
• Starscope has been packaged for Arch Linux.