anchor.diff:  
   ## Install composer
   RUN cd /home/accuser
  -RUN curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/bin --filename=composer
  +RUN curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer
   
   ## Install wp-cli
   RUN cd /home/accuser \
  
positive.code: FROM alpine:edge
  
  RUN echo 'http://dl-4.alpinelinux.org/alpine/edge/testing' >> /etc/apk/repositories \
      && apk update \
      && apk add --no-cache --update \
      bash \
  
negative.code:     php7-xmlreader \
      php7-gettext \
      php7-tokenizer \
      php7-zip \
      openssh-client \
      git \
      curl \
  