bundle platform

Displays platform compatibility information
$ bundle platform [--ruby]


--ruby: only display ruby related platform information

When not passed any options, platform will display information from your Gemfile, Gemfile.lock, and Ruby VM about your platform. You'll see output like the following:
$ bundle platform
Your platform is: x86_64-linux

Your app has gems that work on these platforms:
* ruby

Your Gemfile specifies a Ruby version requirement:
* ruby 1.9.3

Your current platform satisfies the Ruby version requirement.
When the ruby directive doesn't match the running Ruby VM, it will tell you what part does not.
Your Ruby version is 1.9.3, but your Gemfile specified 1.8.7

When using the --ruby flag, it will just display the ruby directive information, so you don't have to parse it from the Gemfile.
$ bundle platform --ruby
ruby 1.9.3 (jruby 1.6.7)
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