atom-ruby-bundler

Run bundle install directly from Atom with alt-cmd-b

If you like it, and find it useful, and are rolling in money consider buying it.

Gotchas

If you're using rbenv, you need to make sure your PATH is set correctly for Atom. You can do this inside of the ~/.atom/init.coffee file.

Add a line like this for rbenv:

process.env.PATH = "#{process.env.HOME}/.rbenv/shims:#{process.env.HOME}/.rbenv/bin:#{process.env.PATH}"

There may be a similar process to get RVM to work, but I don't have any experience with it. Post an issue if you're having trouble getting RVM to load properly.