anchor.diff:  RUN echo y | android update sdk --no-ui --all --filter android-26 | grep 'package installed'
   RUN echo y | android update sdk --no-ui --all --filter android-27 | grep 'package installed'
   RUN echo y | android update sdk --no-ui --all --filter android-28 | grep 'package installed'
  +RUN echo y | android update sdk --no-ui --all --filter android-29 | grep 'package installed'
   
   # Build tools 26.0.1
   RUN echo y | android update sdk --no-ui --all --filter build-tools-26.0.1 | grep 'package installed'
   RUN echo y | android update sdk --no-ui --all --filter build-tools-27.0.3 | grep 'package installed'
   RUN echo y | android update sdk --no-ui --all --filter build-tools-28.0.2 | grep 'package installed'
   RUN echo y | android update sdk --no-ui --all --filter build-tools-28.0.3 | grep 'package installed'
  +RUN echo y | android update sdk --no-ui --all --filter build-tools-29.0.3 | grep 'package installed'
   
   # Extras
   RUN echo y | android update sdk --no-ui --all --filter extra-android-m2repository | grep 'package installed'
  
positive.code: MAINTAINER Sebastian Kaspari "skaspari@mozilla.com"
  
  # -- System -----------------------------------------------------------------------------
  
  RUN apt-get update -qq
  
  
negative.code: 					   optipng \
  					   imagemagick \
  					   locales
  
  # Today's Fastlane depends on a newer Ruby version than Ubuntu 17.10 has, so since
  # fastlane is only used for screenshots (afaik) just skip it.
  #RUN gem install fastlane
  
  RUN locale-gen en_US.UTF-8
  
  