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@fujiwara
Created January 5, 2022 09:33
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#!/usr/bin/env ruby
require 'json'
def read_json(file_name)
JSON.parse(File.read(file_name))
end
def parse(iam)
result = []
iam["Statement"].each do |statement|
action = statement["Action"]
if !action.respond_to?(:each)
action = [action]
end
res = statement["Resource"]
if !res.respond_to?(:each)
res = [res]
end
res.each do |r|
action.each do |a|
result << "#{statement['Effect']} #{a} to #{r}"
end
end
end
result
end
from = read_json(ARGV[0])
to = read_json(ARGV[1])
from_set = parse(from)
to_set = parse(to)
minus = from_set - to_set
plus = to_set - from_set
if minus.empty? and plus.empty?
exit 0
else
puts "--- #{ARGV[0]}"
puts "+++ #{ARGV[1]}"
puts
end
minus.each do |diff|
puts "- #{diff}"
end
plus.each do |diff|
puts "+ #{diff}"
end
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