$ [sudo] gem install xcodeproj

	
require 'xcodeproj'
project_path = `.......`    # 工程的全路徑 注意這裡用單引號''不要用``會出問題的
project = Xcodeproj::Project.open(project_path)

 # 1、顯示所有的target
project.targets.each do |target|
  puts target.name
end

# 2、顯示第一個target的所有Compile Sources
target = project.targets.first
files = target.source_build_phase.files.to_a.map do |pbx_build_file|
    pbx_build_file.file_ref.real_path.to_s
end.select do |path|
  path.end_with?(".m", ".mm", ".swift")
end.select do |path|
  puts path
end

# 3、建立一個target 並新增檔案
app_target = project.new_target(:application, 'demo', :ios, '6.0')
header_ref = project.main_group.new_file('./Class.h')
implm_ref = project.main_group.new_file('./Class.m')
app_target.add_file_references([implm_ref])
project.save()
 

	
# File 'lib/xcodeproj/project.rb', line 96
def self.open(path)
  path = Pathname.pwd + path
  unless Pathname.new(path).exist?
    raise "[Xcodeproj] Unable to open `#{path}` because it doesn't exist."
  end
  project = new(path, true) 
  project.send(:initialize_from_file)  # 執行這個方法之前會判斷path的正確性
  project
end

# File 'lib/xcodeproj/project.rb', line 96
def initialize_from_file
  pbxproj_path = path + 'project.pbxproj'  # 拿到包內容中的配置檔案,這個地方操作的是根元素
  plist = Plist.read_from_path(pbxproj_path.to_s) 
  root_object.remove_referrer(self) if root_object
  @root_object     = new_from_plist(plist['rootObject'], plist['objects'], self)  # new_from_plist方法拿到rootObject,正式開始操作
  @archive_version = plist['archiveVersion']
  @object_version  = plist['objectVersion']
  @classes         = plist['classes']
  @dirty           = false

  ......
end 

# File 'lib/xcodeproj/project.rb', line 252
def new_from_plist(uuid, objects_by_uuid_plist, root_object = false)
  attributes = objects_by_uuid_plist[uuid]
  if attributes
    klass = Object.const_get(attributes['isa'])
    object = klass.new(self, uuid)
    objects_by_uuid[uuid] = object
    object.add_referrer(self) if root_object
    object.configure_with_plist(objects_by_uuid_plist) # 分析plist
    object
  end
end