class Sfn::Command::Diff
Diff
command
Public Instance Methods
diff_stack(stack, file, parent_names = [])
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@todo needs updates for better provider compat
# File lib/sfn/command/diff.rb, line 40 def diff_stack(stack, file, parent_names = []) stack_template = stack.template nested_stacks = Hash[ file.fetch("Resources", file.fetch("resources", {})).find_all do |name, value| value.fetch("Properties", {})["Stack"] end ] nested_stacks.each do |name, value| n_stack = stack.nested_stacks(false).detect do |ns| ns.data[:logical_id] == name end if n_stack diff_stack(n_stack, value["Properties"]["Stack"], [*parent_names, stack.data.fetch(:logical_id, stack.name)].compact) end file["Resources"][name]["Properties"].delete("Stack") end ui.info "#{ui.color("Stack diff:", :bold)} #{ui.color((parent_names + [stack.data.fetch(:logical_id, stack.name)]).compact.join(" > "), :blue)}" stack_diff = HashDiff.diff(stack.template, file) if config[:raw_diff] ui.info "Dumping raw template diff:" require "pp" pp stack_diff else added_resources = stack_diff.find_all do |item| item.first == "+" && item[1].match(/Resources\.[^.]+$/) end removed_resources = stack_diff.find_all do |item| item.first == "-" && item[1].match(/Resources\.[^.]+$/) end modified_resources = stack_diff.find_all do |item| item[1].start_with?("Resources.") && !item[1].end_with?("TemplateURL") && !item[1].include?("Properties.Parameters") end - added_resources - removed_resources if added_resources.empty? && removed_resources.empty? && modified_resources.empty? ui.info "No changes detected" ui.puts else unless added_resources.empty? ui.info ui.color("Added Resources:", :green, :bold) added_resources.each do |item| ui.print ui.color(" -> #{item[1].split(".").last}", :green) ui.puts " [#{item[2]["Type"]}]" end ui.puts end unless modified_resources.empty? ui.info ui.color("Modified Resources:", :yellow, :bold) m_resources = Hash.new.tap do |hash| modified_resources.each do |item| _, key, path = item[1].split(".", 3) hash[key] ||= {} prefix, a_key = path.split(".", 2) hash[key][prefix] ||= [] matched = hash[key][prefix].detect do |i| i[:path] == a_key end if matched if item.first == "-" matched[:original] = item[2] else matched[:new] = item[2] end else hash[key][prefix] << Hash.new.tap do |info| info[:path] = a_key case item.first when "~" info[:original] = item[2] info[:new] = item[3] when "+" info[:new] = item[2] else info[:original] = item[2] end end end end end.to_smash(:sorted).each do |key, value| ui.puts ui.color(" - #{key}", :yellow) + " [#{stack.template["Resources"][key]["Type"]}]" value.each do |prefix, items| ui.puts ui.color(" #{prefix}:", :bold) items.each do |item| original = item[:original].nil? ? ui.color("(none)", :yellow) : ui.color(item[:original].inspect, :red) new_val = item[:new].nil? ? ui.color("(deleted)", :red) : ui.color(item[:new].inspect, :green) ui.puts " #{item[:path]}: #{original} -> #{new_val}" end end end ui.puts end unless removed_resources.empty? ui.info ui.color("Removed Resources:", :red, :bold) removed_resources.each do |item| ui.print ui.color(" <- #{item[1].split(".").last}", :red) ui.puts " [#{item[2]["Type"]}]" end ui.puts end run_callbacks_for(:after_stack_diff, :diff => stack_diff, :diff_info => { :added => added_resources, :modified => modified_resources, :removed => removed_resources, }, :api_stack => stack, :new_template => file) end end end
execute!()
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Diff
the stack with existing stack
# File lib/sfn/command/diff.rb, line 14 def execute! name_required! name = name_args.first begin stack = provider.stack(name) rescue Miasma::Error::ApiError::RequestError stack = nil end if stack config[:print_only] = true file = load_template_file file = parameter_scrub!(file.dump) ui.info "#{ui.color("SparkleFormation:", :bold)} #{ui.color("diff", :blue)} - #{name}" ui.puts diff_stack(stack, MultiJson.load(MultiJson.dump(file)).to_smash) else ui.fatal "Failed to locate requested stack: #{ui.color(name, :red, :bold)}" raise "Failed to locate stack: #{name}" end end