class Guard::Watcher

def initialize(pattern, action = nil)

Parameters:
  • action (Block) -- the action to execute before passing the result to
  • pattern (String, Regexp) -- the pattern to be watched by the Guard 
def initialize(pattern, action = nil)
  @pattern, @action = pattern, action
  @@warning_printed ||= false
  # deprecation warning
  if @pattern.is_a?(String) && @pattern =~ /(^(\^))|(>?(\\\.)|(\.\*))|(\(.*\))|(\[.*\])|(\$$)/
    unless @@warning_printed
      ::Guard::UI.info "*"*20 + "\nDEPRECATION WARNING!\n" + "*"*20
      ::Guard::UI.info <<-MSG
        You have a string in your Guardfile watch patterns that seem to represent a Regexp.
        Guard matches String with == and Regexp with Regexp#match.
        You should either use plain String (without Regexp special characters) or real Regexp.
      MSG
      @@warning_printed = true
    end
    ::Guard::UI.info "\"#{@pattern}\" has been converted to #{ Regexp.new(@pattern).inspect }\n"
    @pattern = Regexp.new(@pattern)
  end
end