This Chrome extension lets you jump to the definition of a variable, class, method or function when you're reviewing a diff in a pull request or viewing a file on GitHub.
Just right click on a token and choose 'Go to definition'. We'll scour the project for any definitions and let you open them in a new tab.
The Chrome extension is paired with a Sinatra server which, given a GitHub repo, a commit hash and a token to search for: downloads the repo as a zip, generates a ctags file for it and searches the index for the token.
For public use, I've hosted this service on Google App Engine at https://github-ctags.gordn.org.
- Doesn't work with private repositories yet, since the remote server somehow needs the authorization to download a private repo.
- Will probably be slow for repos with 100MB+ of code (not total repo size, but actual file size)
This project contains a chrome extension (located in /chrome_extension/) and a Ruby Sinatra backend server.
To get the server running, you can either build a Docker image using the Dockerfile or follow the following instructions. You'll need Ruby 2+ and Bundler installed.
Install dependencies
bundle install
You'll also need to have ctags and unzip installed. Here's how to do that in Mac OS X:
brew install ctags
Run server (default port is 4567)
bundle exec ruby app.rb -p {PORT}
Whatever port this is running on, you'll want to update /chrome_extension/background.js to point to http://localhost:{PORT}/definition?...
- Go to chrome://extensions/
- Tick the 'Developer mode' checkbox
- Click 'Load unpacked extension...' and then open the
/chrome_extension/directory from the file browser.
All suggestions and contributions are welcome! Feel free to open up an issue or throw some pull requests over.