anchor.diff:  ##############################################################################
   
   RUN set -x \
  +
       # YouCompleteMe support
  -    && cd /root \
  -    && mkdir ycm_build \
  -    && mkdir ycm_temp \
  -    && curl -OL http://releases.llvm.org/4.0.0/clang+llvm-4.0.0-x86_64-linux-gnu-debian8.tar.xz \
  -    && tar xvf clang+llvm-4.0.0-x86_64-linux-gnu-debian8.tar.xz \
  -    && mv clang+llvm-4.0.0-x86_64-linux-gnu-debian8 ycm_temp/llvm_root_dir \
  -
  -    && cd ycm_build \
  -    && cmake -G "Unix Makefiles" -DPATH_TO_LLVM_ROOT=~/ycm_temp/llvm_root_dir . /root/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp \
  -    && cmake --build . --target ycm_core \
  +    && cd /root/.vim/bundle/YouCompleteMe \
  +    && ./install.py \
       && cd /root/.vim/bundle/YouCompleteMe/third_party/ycmd/third_party/gocode \
       && go build \
       && cd /root/.vim/bundle/YouCompleteMe/third_party/ycmd/third_party/tern_runtime \
       && npm install --production \
   
       # YouCompleteMe - dev
  -    && rsync -a /root/ycm_build/ /home/dev/ycm_build/ \
       && rsync -a /root/.vim/bundle/YouCompleteMe/ /home/dev/.vim/bundle/YouCompleteMe/ \
  -    && chown -R dev:dev /home/dev/ycm_build \
       && chown -R dev:dev /home/dev/.vim/bundle \
       && rm -rf /root/ycm_tmp
  +
  +
  +##############################################################################
  +# image resources
  +##############################################################################
  +
  +COPY bin/devenv /usr/local/bin/devenv
  +COPY _image /_image
   
   
   ##############################################################################
  
positive.code:         powerline \
          python \
          python-dev \
          python3 \
          python3-dev \
          python-pip \
          python-powerline \
          python-powerline-doc \
          rsync \
  
negative.code: # ~ fin ~
  ##############################################################################
  
  # generate the initial locate database
  # cleanup apt cache
  # add devenv support scripts
  # remove repo resources
  RUN set -x \
      && updatedb \
      && apt-get clean \
      && rm -rf /var/lib/apt/lists/* \
      && cp /_image/attach.sh / \
  