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ci/Dockerfile: Always use versioned clang packages

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This commit switches to a new strategy to make sure we're installing the
most recent LLVM packages. Before this commit, we used the unversioned
LLVM packages (e.g., `clang` instead of `clang-18`), which are supposed
to provide the latest snapshot, but this is broken for arm64 [1],
which we want to add in a later PR.

Anyway, the new approach is cleaner because it does not require us to
fiddle with the installed `clang` package by removing a symlink.

[1] https://github.com/llvm/llvm-project/issues/64790

Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
This commit is contained in:
Tim Ruffing 2023-08-30 18:11:36 +02:00
parent 65c79fe2d0
commit 6ebe7d2bb3
1 changed files with 16 additions and 12 deletions
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ci/linux-debian.Dockerfile
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@ -46,17 +46,21 @@ RUN mkdir gcc && cd gcc && \
cd ../.. && rm -rf gcc && \
ln -s /opt/gcc-snapshot/bin/gcc /usr/bin/gcc-snapshot
# Install clang snapshot
RUN wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc && \
# Install clang snapshot, see https://apt.llvm.org/
RUN \
# Setup GPG keys of LLVM repository
apt-get update && apt-get install --no-install-recommends -y wget && \
wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc && \
# Add repository for this Debian release
. /etc/os-release && echo "deb http://apt.llvm.org/${VERSION_CODENAME} llvm-toolchain-${VERSION_CODENAME} main" >> /etc/apt/sources.list && \
# Install clang snapshot
apt-get update && apt-get install --no-install-recommends -y clang && \
# Remove just the "clang" symlink again
apt-get remove -y clang && \
# We should have exactly two clang versions now
ls /usr/bin/clang* && \
[[ $(ls /usr/bin/clang-?? | sort | wc -l) -eq "2" ]] && \
# Create symlinks for them
ln -s $(ls /usr/bin/clang-?? | sort | tail -1) /usr/bin/clang-snapshot && \
ln -s $(ls /usr/bin/clang-?? | sort | head -1) /usr/bin/clang
apt-get update && \
# Determine the version number of the LLVM development branch
LLVM_VERSION=$(apt-cache search --names-only '^clang-[0-9]+$' | sort -V | tail -1 | cut -f1 -d" " | cut -f2 -d"-" ) && \
# Install
apt-get install --no-install-recommends -y "clang-${LLVM_VERSION}" && \
# Create symlink
ln -s "/usr/bin/clang-${LLVM_VERSION}" /usr/bin/clang-snapshot && \
# Clean up
apt-get autoremove -y wget && \
apt-get clean