.cirrus.yml

environment:
  CIRRUS_CLONE_DEPTH: 50
  CLANG_VERSION: '15.0.3' # 15.0.6 requires a more recent libstdc++.so.6 than shipped with Ubuntu 20
  LLVM_PROJECTS_TO_ENABLE: compiler-rt;lld;bolt
  # keep these in sync with .github/workflows/ldc-release.yml for Linux x64:
  LLVM_TARGETS_TO_BUILD: all
  LLVM_EXPERIMENTAL_TARGETS_TO_BUILD: SPIRV;Xtensa
  BASE_CMAKE_FLAGS: -DLLVM_ENABLE_TERMINFO=OFF -DLLVM_ENABLE_LIBEDIT=OFF -DLLVM_USE_STATIC_ZSTD=TRUE -DCOMPILER_RT_INCLUDE_TESTS=OFF -DLLVM_INCLUDE_TESTS=OFF -DCOMPILER_RT_USE_LIBCXX=OFF
  EXTRA_CMAKE_FLAGS: -DLLVM_BINUTILS_INCDIR=/usr/include -DLLVM_STATIC_LINK_CXX_STDLIB=ON

task:
  name: Ubuntu 20.04 $TASK_NAME_SUFFIX
  compute_engine_instance:
    image_project: ubuntu-os-cloud
    image: family/ubuntu-2004-lts-arm64
    platform: linux
    architecture: arm64
    cpu: 4
    memory: 8G
    disk: 20
  timeout_in: 120m
  environment:
    PARALLELISM: 4
    GITHUB_TOKEN: ENCRYPTED[79b00f4f535df0fdfe3ceea87f9d4ec2ba7628e0c60730b99bcd91c7888af275409f02b2f1bc90015c2cb9cc4fb2dd12]
    matrix:
      - TASK_NAME_SUFFIX: aarch64
        LLVM_ENABLE_ASSERTIONS: 'OFF'
      - TASK_NAME_SUFFIX: aarch64 withAsserts
        LLVM_ENABLE_ASSERTIONS: 'ON'
  install_prerequisites_script: |
    export DEBIAN_FRONTEND=noninteractive
    apt-get -q update
    apt-get -yq install git-core curl xz-utils ninja-build g++ python3 pkg-config binutils-dev libxml2-dev libzstd-dev zlib1g-dev p7zip-full
    # install a more recent version of CMake
    curl -fL --retry 3 --max-time 300 -o cmake.tar.gz https://github.com/Kitware/CMake/releases/download/v3.28.4/cmake-3.28.4-linux-aarch64.tar.gz
    mkdir cmake_bin
    tar -xf cmake.tar.gz --strip 1 -C cmake_bin
    rm cmake.tar.gz
    # download & extract clang
    curl -fL --retry 3 --max-time 300 -o clang.tar.xz https://github.com/llvm/llvm-project/releases/download/llvmorg-$CLANG_VERSION/clang+llvm-$CLANG_VERSION-aarch64-linux-gnu.tar.xz
    mkdir clang_bin
    tar -xf clang.tar.xz --strip 1 -C clang_bin
    rm clang.tar.xz
    # make lld the default linker
    ln -sf "$PWD/clang_bin/bin/ld.lld" /usr/bin/ld
    ld --version
  clone_submodules_script: |
    git submodule update --init --depth $CIRRUS_CLONE_DEPTH
  build_script: |
    export PATH="$PWD/cmake_bin/bin:$PATH"
    export CC="$PWD/clang_bin/bin/clang"
    export CXX="$PWD/clang_bin/bin/clang++"
    nproc
    free
    cmake --version
    ninja --version
    mkdir build
    cd build
    cmake -G Ninja ../llvm \
      -DCMAKE_BUILD_TYPE=Release \
      -DCMAKE_INSTALL_PREFIX=$PWD/../install \
      -DLLVM_ENABLE_PROJECTS="$LLVM_PROJECTS_TO_ENABLE" \
      -DLLVM_TARGETS_TO_BUILD="$LLVM_TARGETS_TO_BUILD" \
      -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD="$LLVM_EXPERIMENTAL_TARGETS_TO_BUILD" \
      -DLLVM_ENABLE_ASSERTIONS=$LLVM_ENABLE_ASSERTIONS \
      $BASE_CMAKE_FLAGS $EXTRA_CMAKE_FLAGS
    ninja -j$PARALLELISM install
    cd ..
  pack_artifact_script: |
    if [[ "${CIRRUS_TAG:-}" == ldc-v* ]]; then
      artifactID=${CIRRUS_TAG:5}
    else
      artifactID=${CIRRUS_CHANGE_IN_REPO:0:8}
    fi
    assertsSuffix=""
    if [[ "$LLVM_ENABLE_ASSERTIONS" == "ON" ]]; then
      assertsSuffix="-withAsserts"
    fi
    artifactName=llvm-$artifactID-linux-aarch64$assertsSuffix
    mv install $artifactName
    chmod -R go=rX $artifactName
    artifact=$artifactName.tar.xz
    tar -cf - --owner=0 --group=0 $artifactName | 7za a $artifact -si -txz -mx9 -mmt$PARALLELISM
    ls -lh $artifact
  # Upload to GitHub release (only for branches and tags, no PRs)
  upload_to_github_script: |
    if [[ "${CIRRUS_TAG:-}" == ldc-v* ]]; then
      releaseTag=$CIRRUS_TAG
    elif [[ "${CIRRUS_TAG:-}" == "" && "${CIRRUS_PR:-}" == "" ]]; then
      releaseTag=CI
    else
      echo 'Skipping upload'
      exit 0
    fi
    releaseID="$(set -eo pipefail; curl -fsS https://api.github.com/repos/ldc-developers/llvm-project/releases/tags/"$releaseTag" | grep '^  "id":' | head -n1 || echo "<error>")"
    if [[ "$releaseID" == "<error>" ]]; then
      echo "Error: no GitHub release found for tag '$releaseTag'" >&2
      exit 1
    fi
    releaseID=${releaseID:8:-1}
    artifact=$(ls llvm-*.tar.xz)
    echo "Uploading $artifact to GitHub release $releaseTag ($releaseID)..."
    curl -fsS \
      -H "Authorization: token $GITHUB_TOKEN" \
      -H "Content-Type: application/octet-stream" \
      --data-binary @$artifact \
      https://uploads.github.com/repos/ldc-developers/llvm-project/releases/$releaseID/assets?name=$artifact