class Xcodeproj::Project::Object::PBXFileReference

def self.new_static_library(project, product_name)
  new(project, nil,
    "includeInIndex" => "0",
    "sourceTree" => "BUILT_PRODUCTS_DIR",
    "path" => "lib#{product_name}.a"
  )
end

def initialize(*)
  super
  self.path = path if path # sets default name
  self.source_tree ||= 'SOURCE_ROOT'
  self.include_in_index ||= "1"
  set_default_file_type!
end

def path=(path)
  self._path = path
  self.name ||= pathname.basename.to_s
  path
end

def pathname
  Pathname.new(path)
end

def set_default_file_type!
  return if explicit_file_type || last_known_file_type
  case path
  when /\.a$/
    self.explicit_file_type = 'archive.ar'
  when /\.framework$/
    self.last_known_file_type = 'wrapper.framework'
  when /\.xcconfig$/
    self.last_known_file_type = 'text.xcconfig'
  end
end