Run related specs whenever you touch shared_example file

Guardfile

  # run specs using shared examples after touching shared example itself
  watch(%r'spec/support/shared_examples/.*\.rb') do |m|
    m.each_with_object([]) do |m, files|

      defline = `grep shared_example.*$ #{m}`
      shared_example_name = %r[shared_examples ["':](.*)["'] do].match(defline)[1]
      new_files =
        `grep -r #{shared_example_name} spec/ --include="*_spec.rb" | grep -E "spec/.*_spec\.rb" -o`.split("\n")
      files.concat(new_files)
    end
  end

unfortunately it runs whole specs, changing it to

   `grep -rn #{shared_example_name} spec/ --include="*_spec.rb" | grep -E "spec/.*_spec\.rb\:[0-9]*" -o`.split("\n")

doesn't make it run only lines containing it_behaves_like, not sure why.

this is not working for (apq/ba/talent/save_application_spec.rb), check this out later.