Class: Watch

Inherits:
Object
  • Object
show all
Defined in:
lib/aml/watch.rb

Instance Method Summary collapse

Constructor Details

#initialize(filenames, arguments, instance, build) ⇒ Watch

Returns a new instance of Watch.



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# File 'lib/aml/watch.rb', line 2

def initialize(filenames, arguments, instance, build)
  @arguments = arguments
  @instance = instance
  filenames = [filenames] if(filenames.kind_of?String)
  @last_mtimes = {}
  filenames.each do |filename|
    @last_mtimes[filename] = File.stat(filename).mtime if File.exists?(filename)
  end
  @filenames = filenames
  watch
end

Instance Method Details

#file_updated? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/aml/watch.rb', line 23

def file_updated?
  @filenames.each do |filename|
    if File.exists?(filename)
      mtime = File.stat(filename).mtime
      updated = @last_mtimes[filename] < mtime
      @last_mtimes[filename] = mtime
      if(updated)
        exec("aml #{@arguments} --aml-watch-instance #{@instance}")
        Kernel.exit!
        return true
      end
    end
  end
  return false
end

#watch(sleep = 1) ⇒ Object 



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# File 'lib/aml/watch.rb', line 13

def watch(sleep=1)
  loop do
    begin
      Kernel.sleep sleep until file_updated?
      rescue SystemExit,Interrupt
      puts ""
      Kernel.exit!
    end
  end
end