Prints files that where not added to all xcode targets given in parameter

pbxproj_unused_files.rb

#
#  pbxproj_unused_files.rb
#  v.1.0.0
#
#  Copyright (c) 2015 Kamil Borzym
#  Released under the MIT License
#

require 'rubygems'
require 'json'

class PbxStructure

  attr_accessor :target_names

  def initialize(pbx_tree)
    @pbx_tree = pbx_tree
  end

  def scanFiles
    pbx_objects = @pbx_tree["objects"]
    root_object = pbx_objects[@pbx_tree["rootObject"]]

    root_object["targets"].select do |target_id|
      @target_names.include?(pbx_objects[target_id]["name"])
    end.map do |target_id|
      pbx_objects[target_id]["buildPhases"]
    end.flatten.select do |phase_id|
      pbx_objects[phase_id]["isa"] == "PBXSourcesBuildPhase"
    end.map do |phase_id|
      pbx_objects[phase_id]["files"]
    end.flatten.map do |file_id|
      pbx_objects[file_id]["fileRef"]
    end.group_by do |file_id|
      file_id
    end.inject(Hash.new) do |hash, (k,v)|
      hash[k] = v.length
      hash
    end.select do |k,v|
      v.to_i < @target_names.length
    end.keys.map do |file_id|
      pbx_objects[file_id]["path"]
    end.each do |path|
      print path, "\n"
    end
  end
end


if __FILE__ == $0
  def usage
    abort "Prints files that where not added to all xcode targets given in parameter
usage:
  ruby #{__FILE__} pbx_path [target_name:...]"
  end

  pbx_path = ARGV[0]
  target_names = ARGV[1]
  if pbx_path.nil? or target_names.nil?
    usage
  end
  pbx_data = `plutil -convert json -o - #{ARGV[0]}`
  if $? != 0
    abort "Could not read project file!"
  end

  pbx_tree = JSON.parse(pbx_data)

  pbx_structure = PbxStructure.new(pbx_tree)
  pbx_structure.target_names = target_names.split(":")
  pbx_structure.scanFiles
end