anchor.diff:  # invalidates the cache when we add a new package.
   RUN apt-get update -y && \
       apt-get install -y \
  -	ngspice=26-1.1ubuntu4 \
  -	kicad=4.0.5+dfsg1-4 \
  -        python3=3.5.3-1 \
  +        wget=1.19.1-3ubuntu1.1 \
  +        kicad=4.0.6+dfsg1-1 \
  +        python3=3.6.3-0ubuntu2 \
           python3-pip=9.0.1-2 \
  -        python3-tk=3.5.3-1ubuntu1 \
  -	nodejs=4.7.2~dfsg-1ubuntu3 \
  -	npm=3.5.2-0ubuntu4 \
  -	ruby-full=1:2.3.3 \
  -        && \
  +        python3-tk=3.6.3-0ubuntu1 \
  +        nodejs=6.11.4~dfsg-1ubuntu1 \
  +        npm=3.5.2-0ubuntu4 \
  +        ruby-full=1:2.3.3 \
  +    && \
       pip3 install \
  -	PyTest==3.2.5 \
  +        PyTest==3.2.5 \
           PySpice==1.1.3 \
           Sphinx==1.6.5 \
  -	Flake8==3.5.0 \
  -	# These are required since PySpice doesn't list its dependencies
  -	# https://github.com/FabriceSalvaire/PySpice/issues/84
  -	# TODO: Check for new release of PySpice
  -        PyYAML==3.12 \
  -        cffi==1.11.2 \
  -        matplotlib==2.1.0 \
  -        numpy==1.13.3 \
  -        scipy==1.0.0 \
  -	&& \
  +        Flake8==3.5.0 \
  +    && \
       npm install -g \
  -	dockerfile_lint@0.2.7 \
  -	&& \
  +        dockerfile_lint@0.2.7 \
  +    && \
       gem install --no-rdoc --no-ri \
  -	travis:1.8.8 \
  -	&& \
  +        travis:1.8.8 \
  +    && \
       # Cleanup
       rm -rf ~/.cache/pip/* && gem cleanup && apt-get clean
   
  -# Fix required to provide node bin
  -RUN ln -s /usr/bin/nodejs /usr/bin/node
  +# Pushing out a new release for 17:10 via Launchpad is too
  +# time consuming, so just isntall straight from the .deb...
  +RUN wget https://launchpad.net/~mikewild/+archive/ubuntu/ngspice-shared/+build/13749894/+files/ngspice_26-1.1ubuntu4_amd64.deb && \
  +    dpkg -i ngspice_26-1.1ubuntu4_amd64.deb
   
   # Drop the user into project directory
   WORKDIR /workspace
  
positive.code: ENV LANG=C.UTF-8
  ENV LANGUAGE=C.UTF-8
  
  RUN apt-get update -y && \
      apt-get install -y software-properties-common && \
      add-apt-repository ppa:mikewild/ngspice-shared
  # Installing KiCad from PPA times out build for some reason.
  # Disable this and install from Ubuntu repos for time being...
  #RUN add-apt-repository ppa:js-reynaud/kicad-4
  
negative.code: FROM ubuntu:17.10
  LABEL name="hyperterm-hardware" \
        version="0.1.0"
  MAINTAINER Mike Wild <mike@mikeanthonywild.com>
  
  