Finds duplicate files in sibling folders

duplicate-finder.rb

result = {}

Dir.glob("*").each do |dir|
	result[dir] = Dir.glob("#{dir}/**/*").to_a.select {|p| File.file?(p)}.map {|p| p[dir.length..-1]}
end

puts "#{result.count} dirs found"

result.each do |key, value|
	result.each do |key2, value2|

		if(key != key2) 
			dups = value & value2
			# puts "#{key} and #{key2}: #{dups}" unless dups.empty?
		end

	end
end

puts "invers"

result_inv = {}
result.each do |key, value|
	value.each do |v|
		unless(result_inv.key? (v))
			result_inv[v] = []
		end
		result_inv[v] << key
	end
end

result_inv.each do |key, value|
	puts "#{key}: #{value}" if value.size > 1
end