Logstash Ruby filter - init not working

[Hichem]

I'm trying to initialize a variable in a ruby filter. It works properly with the code tag, but not when using a ruby file.
Here is my code:
pipeline.conf

  ruby {
    init => "@val = 5 "
    path => "script.rb"
     }

script.rb

def register(params)
end


def filter(event)
    puts @val
    return [event]
end   

[Badger]

@Hichem

I'm trying to initialize a variable in a ruby filter. It works properly with the code tag, but not when using a ruby file.

That is correct. The filter avoids evaluating the init option if the path option is set.

Once you know that it becomes clear that the documentation does imply it. The init option supplies inline code, not script code.