Question

Rails relies on:

• actionmailer = 3.2.0
• actionpack = 3.2.0
• activerecord = 3.2.0
• activeresource = 3.2.0
• activesupport = 3.2.0
• bundler ~> 1.0
• railties = 3.2.0

Each of these gems rely on gems of its own etcetera etcetera. Does anyone have a source or the skills to write a script to figure this out quickly?

Answer 1

Try this:

gem dependency rails --pipe | gem dependency $1

This will traverse the dependency tree for the rails gem.

If you have multiple versions of rails installed, then do something like:

gem dependency rails -v 3.2 --pipe | gem dependency $1

Spoiler: Rails relies on a ton of other gems.