Fixes #19191 - Output formatter applies for selected adapter only

[ofedoren]

Now it is possible to apply an output formatter on selected adapters only.

To use this feature, define applicable_adapters OR not_applicable_adapters method in your formatter like this:

class MyFormatter < HammerCLI::Output::Formatters::FieldFormatter
  def applicable_adapters
    [HammerCLI::Output::Adapter::Table]
  end

  def tags
    # tags
  end
  
  def format(data, field_params = {})
    # logic
  end
end

Similar to apply on all the adapters except a particular one:

class MyFormatter < HammerCLI::Output::Formatters::FieldFormatter
  def not_applicable_adapters
    [HammerCLI::Output::Adapter::Table]
  end

  def tags
    # tags
  end
  
  def format(data, field_params = {})
    # logic
  end
end

NOTE: If none of the methods defined, everything has default behaviour.

[mbacovsky]

@ofedoren looks good! Could you cover this in tests?

Did you consider using adapter names (under which they are registered) - :table, :csv instead of the class name? This way the formatter filtering would still work if e.g. the table adapter implementation is replaced. Just an idea, not sure if that is a good thing yet.

[mbacovsky]

@ofedoren I've also re-checked the original issue and think this approach duplicates the tags. I'll comment in the issue.

[ofedoren]

@mbacovsky, updated.

Now it uses tags for comparison.

[ofedoren]

blocked by #300

[mbacovsky]

@ofedoren, the more I think about this the more I tend to keep just #300 and close this PR and the #19191 issue as won't fix or duplicate. The only use-case mentioned was fixed by 300 and I think it is better practice to add new "tags" then make formatters bound to specific adapters. Makes sense?

[ofedoren]

@mbacovsky, I didn't even notice, that #300 fixed that use-case :) As shows that PR, we can add another formatter or "tags", so I'll close this PR with the issue as duplicate.