Hello bundler_signature_check

$ gem cert --add <(curl -Ls https://gist.github.com/bradleybuda/5078798/raw/024ae8ebc085ef009dd0a3ce8c5fa433c5bcb1f1/brad-meldium-public.pem)
Added '/CN=brad/DC=meldium/DC=com'

# Ironically(?) bundler itself isn't signed
$ gem install bundler --version=1.3.1 -P MediumSecurity
Successfully installed bundler-1.3.1
1 gem installed

# But this snazzy new gem is!
$ gem install bundler_signature_check -P HighSecurity
Successfully installed bundler_signature_check-0.1.337
1 gem installed

$ cd ~/src/my-rails-app
$ bundler_signature_check | less
MediumSecurity:
  rake-10.0.3: Unsigned gem
  ace-rails-ap-2.0.0: Unsigned gem
  i18n-0.6.1: Unsigned gem
  ...

LowSecurity:
  multi_json-1.6.1: Couldn't verify data signature: Untrusted Signing Chain Root: cert = '/CN=sferik/DC=gmail/DC=com', error = 'path "/Users/brad/.gem/trust/cert-f0d28c2182430599ebb06b92b03b7f32b98891e7.pem" does not exist'
  mime-types-1.21: Couldn't verify data signature: Untrusted Signing Chain Root: cert = '/CN=austin/DC=rubyforge/DC=org', error = 'path "/Users/brad/.gem/trust/cert-fce04dea165fb7d6b599e8cd43ffdfff2da63b15.pem" does not exist'
  ...

Unknown:
  guard-minitest-1.0.0.alpha: Gem missing from cache
  pry-0.9.10: Gem missing from cache
  ...