gems_to_molinillo_specs.rb

#!/usr/bin/ruby

require 'json'
require 'open-uri'

gems = %w(rails capybara bundler)

specs = []

begin
	size = gems.size
	specs = JSON.load open("http://bundler.rubygems.org/api/v1/dependencies.json?gems=#{gems.join(',')}")

	gems += specs.flat_map { |s| s['dependencies'].map(&:first) }
	gems.uniq!
end while gems.size != size

#puts "%w(#{gems.join ' '})"
#puts ''
#puts gems.size

specs.reject! { |s| s['platform'] != 'ruby' }
specs.uniq! { |s| [s['name'], s['number']] }
specs = specs.group_by { |s| s['name'] }.values.map do |s|
	[s.first['name'], s.flat_map do |s|
	{
		'name' => s['name'],
		'version' => s['number'],
		'dependencies' => Hash[s['dependencies']]
	}
	end.sort_by { |s| Gem::Version.new(s['version']) }
	]
end
specs = Hash[specs]

puts JSON.pretty_generate(specs)