guard-haml output to multiple locations

Question

I would like Guard to send the output of a haml compilation to two different places. I tried calling haml in my Guardfile twice, like this:

guard 'haml', :output => 'first_dir/', :input => 'src/haml' do
  watch %r{^src/haml/.+(\.html\.haml)(?!(\.swp))}
end
guard 'haml', :output => 'second_dir/', :input => 'src/haml' do
  watch %r{^src/haml/.+(\.html\.haml)(?!(\.swp))}
end

But that just goes into an endless loop. What does my Guardfile need to look like to output to two different directories?

Answer 1

I don't see any problems with your Guardfile. As workaround you could use groups and start two Guard processes:

group :first do
  guard 'haml', :output => 'first_dir/', :input => 'src/haml' do
    watch %r{^src/haml/.+(\.html\.haml)(?!(\.swp))}
  end
end

group :second do
  guard 'haml', :output => 'second_dir/', :input => 'src/haml' do
    watch %r{^src/haml/.+(\.html\.haml)(?!(\.swp))}
  end
end

and now you start each in its own terminal:

guard -g first
guard -g second

Not quite elegant, but it'll work...