Get ruby gems homepages fo fast googling. Sometimes 'gem list' is not enough

gems_homepages.rb

#!/usr/bin/env ruby
# bundler exec ruby gems_homepages.rb
# based on http://stackoverflow.com/questions/5177634/list-of-installed-gems
require 'rubygems'

def local_gems
   Gem::Specification.sort_by{ |g| [g.name.downcase, g.version] }.group_by{ |g| g.name }
end

puts local_gems.map{ |name, specs|
  [ name,
    specs.map{ |spec| spec.version.to_s }.join(','),
    specs.map{ |spec| spec.homepage.to_s }.join(',')
  ].join(' ')
}