4 RUN echo force-unsafe-io > /etc/dpkg/dpkg.cfg.d/docker-apt-speedup
5 # Paper over occasional network flakiness of some mirrors.
6 RUN echo 'APT::Acquire::Retries "5";' > /etc/apt/apt.conf.d/80retry
8 # NOTE: I tried exclusively using gce_debian_mirror.storage.googleapis.com
9 # instead of httpredir.debian.org, but the results (Fetched 123 MB in 36s (3357
10 # kB/s)) are not any better than httpredir.debian.org (Fetched 123 MB in 34s
11 # (3608 kB/s)). Hence, let’s stick with httpredir.debian.org (default) for now.
13 # Install mk-build-deps (for installing the i3 build dependencies),
14 # clang and clang-format-3.8 (for checking formatting and building with clang),
15 # lintian (for checking spelling errors),
16 # test suite dependencies (for running tests)
17 RUN apt-get update && \
18 DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
19 build-essential clang git autoconf automake libxcb-randr0-dev pkg-config libpam0g-dev \
20 libcairo2-dev libxcb1-dev libxcb-dpms0-dev libxcb-image0-dev libxcb-util0-dev \
21 libxcb-xrm-dev libev-dev libxcb-xinerama0-dev libxcb-xkb-dev libxkbcommon-dev \
22 libxkbcommon-x11-dev && \
23 rm -rf /var/lib/apt/lists/*