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# Minimal image with clang-format.
#
FROM debian:trixie-20260803-slim
LABEL maintainer="John Schanck <jschanck@mozilla.com>"
VOLUME /builds/worker/checkouts
# %include-run-task
# Track the clang version used by Firefox
# Find $config where $config.run.toolchain-alias.by-project.default == linux64-clang
# Get specific tags from .../taskcluster/kinds/fetch/toolchains.yml
# Note: This won't get exact patch levels, but that's OK for code formatting.
# Keep in sync with expected_version in ../../../automation/clang-format/run_clang_format.sh.
ARG CLANG_VERSION=22
RUN export DEBIAN_FRONTEND=noninteractive \
&& apt-get update \
&& apt-get install -y --no-install-recommends \
ca-certificates \
git \
locales \
mercurial \
&& rm -rf /var/lib/apt/lists/* \
&& apt-get autoremove -y && apt-get clean -y
COPY apt.llvm.org.asc /etc/apt/trusted.gpg.d/
COPY llvm.sources /etc/apt/sources.list.d/
RUN export DEBIAN_FRONTEND=noninteractive \
&& apt-get update \
&& apt-get install -y --no-install-recommends clang-format-$CLANG_VERSION \
&& rm -rf /var/lib/apt/lists/* \
&& apt-get autoremove -y && apt-get clean -y \
&& update-alternatives --install /usr/bin/clang-format \
clang-format $(which clang-format-$CLANG_VERSION) $CLANG_VERSION
ENV \
SHELL=/bin/bash \
USER=worker \
LOGNAME=$USER \
HOME=/home/$USER \
LANG=en_US.UTF-8 \
LC_ALL=$LANG \
HOST=localhost \
DOMSUF=localdomain
RUN locale-gen $LANG \
&& DEBIAN_FRONTEND=noninteractive dpkg-reconfigure locales \
&& useradd -d $HOME -s $SHELL -m $USER
WORKDIR $HOME
RUN chown -R $USER: $HOME
# Note: no USER directive. In CI, run-task needs to start as root; `mach
# clang-format` passes `--user worker` instead.
# Set a default command for debugging.
CMD ["/bin/bash", "--login"]