Module: ScoutRake

Defined in:
lib/scout/resource/produce/rake.rb

Defined Under Namespace

Classes: TaskNotFound

Class Method Summary collapse

Class Method Details

.run(rakefile, dir, task, &block) ⇒ Object 



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# File 'lib/scout/resource/produce/rake.rb', line 27

def self.run(rakefile, dir, task, &block)
  old_pwd = FileUtils.pwd

  Rake::Task.clear
  Rake::FileTask.clear_files

  t = nil
  pid = Process.fork{
    if block_given?
      TOPLEVEL_BINDING.receiver.instance_exec &block
    else
      if Path.is_filename? rakefile
        rakefile = rakefile.produce.find
        load rakefile
      else
        TmpFile.with_file(rakefile) do |tmpfile|
          load tmpfile
        end
      end
    end

    raise TaskNotFound if Rake::Task[task].nil?

    #Misc.pre_fork
    begin
      Misc.in_dir(dir) do
        Rake::Task[task].invoke

        Rake::Task.clear
        Rake::FileTask.clear_files
      end
    rescue Exception
      Log.error "Error in rake: #{$!.message}"
      Log.exception $!
      Kernel.exit! -1
    end
    Kernel.exit! 0
  }
  Process.waitpid(pid)
  raise "Rake failed" unless $?.success?

end