Dockerfile.2021-06-21

# Linux build environment for CI

FROM ubuntu:focal

ARG DEBIAN_FRONTEND=noninteractive

RUN set -eux; \
    apt-get update; \
    apt-get install -y --no-install-recommends  \
      build-essential                           \
      ca-certificates                           \
      git                                       \
      gnupg                                     \
      python3                                   \
      wget                                      \
      # clang                                     \
      # clang-format                              \
      cmake                                     \
      # llvm                                      \
      libc++-dev                                \
      libc++abi-dev                             \
      libgtk-3-dev                              \
      liblz4-dev                                \
      libpthread-stubs0-dev                     \
      libsdl2-dev                               \
      libvulkan-dev                             \
      libx11-dev                                \
      libx11-xcb-dev                            \
    ; \
    rm -rf /var/lib/apt/lists/*

RUN set -eux; \
    wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -; \
    echo "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-12 main" > /etc/apt/sources.list.d/llvm-12.list; \
    apt-get update; \
    apt-get install -y --no-install-recommends \
      clang-12        \
      clang-format-12 \
      llvm-12         \
    ; \
    rm -rf /var/lib/apt/lists/*

RUN ln -s /usr/bin/clang-format-12 /usr/local/bin/clang-format

ENV CC clang-12
ENV CXX clang++-12
ENV AR llvm-ar-12