class Xcodeproj::Command::ProjectDiff

def self.banner
s the difference between two projects:
project-diff PROJECT_1 PROJECT_2
It shows the difference in a UUID agnostic fashion.
To reduce the noise (and to simplify implementation) differences in the
order of arrays are ignored.}
end

def self.options
  [ ["--ignore KEY", "A key to ignore in the comparison. Can be specified multiple times."] ].concat(super)
end

def initialize(argv)
  @path_project1  = argv.shift_argument
  @path_project2  = argv.shift_argument
  unless @path_project1 && @path_project2
    raise Informative, "Two project paths are required."
  end
  @keys_to_ignore = []
  while (idx = argv.index('--ignore'))
    @keys_to_ignore << argv.delete_at(idx + 1)
    argv.delete_at(idx)
  end
  super unless argv.empty?
end

def run
  hash_1 = Project.new(@path_project1).to_tree_hash
  hash_2 = Project.new(@path_project2).to_tree_hash
  (@keys_to_ignore).each do |key|
    hash_1.recursive_delete(key)
    hash_2.recursive_delete(key)
  end
  diff = hash_1.recursive_diff(hash_2, @path_project1, @path_project2)
  diff.recursive_delete('displayName')
  require 'yaml'
  yaml = diff.to_yaml
  yaml = yaml.gsub(@path_project1, @path_project1.cyan)
  yaml = yaml.gsub(@path_project2, @path_project2.magenta)
  puts yaml
end