Dependency explorer - for when you desperately need to find which pre-release gem version added some stupid dependency you don't want.

depgrep.rb

require 'open-uri'
require 'pp'
gemname = 'sass'
arr = Marshal.load(open("https://rubygems.org/api/v1/dependencies?gems=#{gemname}"))
arr.sort! do | g1, g2 |
  Gem::Version.new(g1[:number]) <=> Gem::Version.new(g2[:number])
end

# Now go grep for those dependencies