[llvm] [workflows] Build a container for running CI on github actions (PR #75286)

[Aiden Grossman via llvm-commits]

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@@ -0,0 +1,52 @@
+FROM docker.io/library/ubuntu:22.04 as base
+ENV LLVM_SYSROOT=/opt/llvm/
+
+FROM base as toolchain
+ENV LLVM_MAJOR=17
+ENV LLVM_VERSION=${LLVM_MAJOR}.0.6
+ENV LLVM_DIRNAME=clang+llvm-${LLVM_VERSION}-x86_64-linux-gnu-ubuntu-22.04
+ENV LLVM_FILENAME=${LLVM_DIRNAME}.tar.xz
+
+RUN apt-get update && \
+    apt-get install -y \
+    curl \
+    xz-utils
+
+RUN mkdir -p $LLVM_SYSROOT/bin/ $LLVM_SYSROOT/lib/
+
+RUN curl -O -L https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/$LLVM_FILENAME
+#COPY $LLVM_FILENAME .
+
+RUN tar -C $LLVM_SYSROOT --strip-components=1 -xJf $LLVM_FILENAME \
+    $LLVM_DIRNAME/bin/clang \
+    $LLVM_DIRNAME/bin/clang++ \
+    $LLVM_DIRNAME/bin/clang-cl \
+    $LLVM_DIRNAME/bin/clang-$LLVM_MAJOR \
+    $LLVM_DIRNAME/bin/lld \
+    $LLVM_DIRNAME/bin/ld.lld \
+    $LLVM_DIRNAME/lib/clang/
+
+
+FROM base
+
+COPY --from=toolchain $LLVM_SYSROOT $LLVM_SYSROOT
+
+# Need to install curl for hendrikmuhs/ccache-action
+# Need nodejs for some of the GitHub actions.
+# Need perl-modules for clang analyzer tests.
+RUN apt-get update && \
+    apt-get install -y \
+    binutils \
+    cmake \
+    curl \
+    libstdc++-11-dev \
+    ninja-build \
+    nodejs \
+    perl-modules \
+    python3-psutil
+
+ENV LLVM_SYSROOT=$LLVM_SYSROOT
+ENV PATH=${LLVM_SYSROOT}/bin:${PATH}
+
+# Test clang
+RUN printf '#include <iostream>\nint main(int argc, char **argv) { std::cout << "Hello\\n"; }' | clang++ -x c++ - && ./a.out | grep Hello
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boomanaiden154 wrote:

LGTM. Thanks!

https://github.com/llvm/llvm-project/pull/75286