anchor.diff:    && gem install --no-ri --no-rdoc rake \
     && gem install --no-ri --no-rdoc epubcheck --version 3.0.1 \
     && gem install --no-ri --no-rdoc kindlegen --version 3.0.1 \
  -  && gem install --no-ri --no-rdoc asciidoctor-pdf --version 1.5.0.alpha.13 \
  +  && gem install --no-ri --no-rdoc asciidoctor-pdf --version 1.5.0.alpha.15 \
     && gem install --no-ri --no-rdoc asciidoctor-confluence \
     && gem install --no-ri --no-rdoc rouge coderay pygments.rb thread_safe epubcheck kindlegen \
     && gem install --no-ri --no-rdoc slim \
  
positive.code:   && gem install --no-ri --no-rdoc asciidoctor-revealjs \
    && mkdir $BACKENDS \
    && (curl -LkSs https://api.github.com/repos/asciidoctor/asciidoctor-backends/tarball | tar xfz - -C $BACKENDS --strip-components=1) \
    && wget https://bitbucket.org/pypa/setuptools/downloads/ez_setup.py -O - | python \
    && easy_install "blockdiag[pdf]" \
    && easy_install seqdiag \
    && easy_install actdiag \
  
negative.code: FROM fedora
  
  MAINTAINER Guillaume Scheibel <guillaume.scheibel@gmail.com>
  
  ENV JAVA_HOME /jdk1.8.0_112
  ENV PATH $PATH:$JAVA_HOME/bin:/fopub/bin
  ENV BACKENDS /asciidoctor-backends
  ENV GVM_AUTO_ANSWER true
  ENV ASCIIDOCTOR_VERSION "1.5.5"
  
  RUN dnf install -y tar \
      make \
      gcc \
      ruby \
      ruby-devel \
      rubygems \
      graphviz \
      rubygem-nokogiri \
      unzip \
      findutils \
      which \
      wget \
      python-devel \
      zlib-devel \
      libjpeg-devel \
      redhat-rpm-config \
      patch \
      sudo \
    && dnf clean packages \
    && (curl -s -k -L -C - -b "oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u112-b15/jdk-8u112-linux-x64.tar.gz | tar xfz -) \
    && mkdir /fopub \
    && curl -L https://api.github.com/repos/asciidoctor/asciidoctor-fopub/tarball | tar xzf - -C /fopub/ --strip-components=1 \
    && touch /tmp/empty.xml \
    && fopub /tmp/empty.xml \
  