anchor.diff:  FROM ubuntu:14.04
  +
  +
  +# ------------------------------------------------------
  +# --- Environments and base directories
   
   # Environments
   # - Language
  
positive.code: RUN rm go-bins.tar.gz
  ENV PATH $PATH:/usr/local/go/bin
  
  #
  # Install Bitrise CLI
  RUN curl -fL https://github.com/bitrise-io/bitrise/releases/download/1.2.3/bitrise-$(uname -s)-$(uname -m) > /usr/local/bin/bitrise
  RUN chmod +x /usr/local/bin/bitrise
  RUN bitrise setup --minimal
  
  WORKDIR $BITRISE_SOURCE_DIR
  
  CMD ls -alh
  
negative.code: WORKDIR /bitrise/prep
  
  
  # ------------------------------------------------------
  # --- Base pre-installed tools
  RUN apt-get update
  # Requiered for Bitrise CLI
  RUN DEBIAN_FRONTEND=noninteractive apt-get -y install git mercurial curl wget rsync sudo
  # Common, useful
  RUN DEBIAN_FRONTEND=noninteractive apt-get -y install python
  RUN DEBIAN_FRONTEND=noninteractive apt-get -y install build-essential
  # For PPAs
  RUN DEBIAN_FRONTEND=noninteractive apt-get install -y software-properties-common
  
  
  # ------------------------------------------------------
  # --- Pre-installed but not through apt-get
  
  # install Ruby from source
  #  from source: mainly because of GEM native extensions,
  