content: # ref: https://hub.docker.com/_/debian
  FROM debian:13 AS env
  
  #############
  ##  SETUP  ##
  #############
  RUN apt update -qq \
  && apt install -yq \
   git pkg-config wget cmake build-essential zlib1g-dev \
   swig lsb-release libicu-dev \
  && apt-get clean \
  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  ENTRYPOINT ["/bin/bash", "-c"]
  CMD ["/bin/bash"]
  
  # Install .Net
  # see: https://learn.microsoft.com/en-us/dotnet/core/install/linux-scripted-manual#scripted-install
  RUN wget -q "https://dot.net/v1/dotnet-install.sh" \
  && chmod a+x dotnet-install.sh \
  && ./dotnet-install.sh -c 8.0 -i /usr/local/bin
  # Trigger first run experience by running arbitrary cmd
  RUN dotnet --info
  
  # Java Install
  RUN apt-get update -qq \
  && apt-get install -qq default-jdk maven \
  && apt-get clean \
  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  ENV JAVA_HOME=/usr/lib/jvm/default-java
  
  # Install Python
  RUN apt-get update -qq \
  && apt-get install -qq python3 python3-dev python3-pip \
   python3-venv python3-virtualenv \
  && apt-get clean \
  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  RUN python3 -m pip install --break-system-package \
   absl-py mypy mypy-protobuf
  
  ENV TZ=America/Los_Angeles
  RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
  
  ################
  ##  OR-TOOLS  ##
  ################
  FROM env AS devel
  WORKDIR /root
  # Copy the snk key
  COPY or-tools.snk /root/or-tools.snk
  ENV DOTNET_SNK=/root/or-tools.snk
  
  ARG SRC_GIT_BRANCH
  ENV SRC_GIT_BRANCH ${SRC_GIT_BRANCH:-main}
  ARG SRC_GIT_SHA1
  ENV SRC_GIT_SHA1 ${SRC_GIT_SHA1:-unknown}
  
  ARG OR_TOOLS_PATCH
  ENV OR_TOOLS_PATCH ${OR_TOOLS_PATCH:-9999}
  
  # Download sources
  # use SRC_GIT_SHA1 to modify the command
  # i.e. avoid docker reusing the cache when new commit is pushed
  SHELL ["/bin/bash", "-c"]
  RUN git clone -b "${SRC_GIT_BRANCH}" --single-branch --depth=1 https://github.com/google/or-tools \
  && [[ $(cd or-tools && git rev-parse --verify HEAD) == ${SRC_GIT_SHA1} ]]
  WORKDIR /root/or-tools
  
  # C++
  ## build
  FROM devel AS cpp_build
  RUN make detect_cpp \
  && make cpp JOBS=8
  ## archive
  FROM cpp_build AS cpp_archive
  RUN make archive_cpp
  
  # .Net
  ## build
  FROM cpp_build AS dotnet_build
  RUN make detect_dotnet \
  && make dotnet JOBS=8
  ## archive
  FROM dotnet_build AS dotnet_archive
  RUN make archive_dotnet
  
  # Java
  ## build
  FROM cpp_build AS java_build
  RUN make detect_java \
  && make java JOBS=8
  ## archive
  FROM java_build AS java_archive
  RUN make archive_java
  
  # Python
  ## build
  FROM cpp_build AS python_build
  RUN make detect_python \
  && make python JOBS=8
  ## archive
  FROM python_build AS python_archive
  RUN make archive_python
  