anchor.diff:  
   
   RUN if [ $(echo " $PHP_VERSION < 7.2" | bc) -eq 1 ] ; then echo "old php" && \
  - composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2 && \
  + composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2@stable && \
    composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-bootstrap && \
    composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-bootstrap4 && \
    composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-debug:~2.1.0 && \ 
  
positive.code: #
  
  # Pull base image.
  FROM tamboraorg/crephpdev:2012.0
  MAINTAINER Michael Kahle <michael.kahle@yahoo.de> 
  
  ARG BUILD_YEAR=2012
  ARG BUILD_MONTH=0
  
  # Fixes some weird terminal issues such as broken clear / CTRL+L
  
negative.code: 
  # npm
  RUN composer require --prefer-stable --update-with-all-dependencies "foxy/foxy"
  RUN composer global require --prefer-stable --update-with-all-dependencies fxp/composer-asset-plugin
  RUN composer global require --prefer-stable --update-with-all-dependencies "npm-asset/jquery"
  #RUN composer require --update-with-all-dependencies "npm-asset/jquery"
  RUN composer global require --prefer-stable --update-with-all-dependencies npm-asset/bootstrap
  