config.yml

# The common steps require environment variables CI_OS and LLVM_ENABLE_ASSERTIONS.
commonSteps: &commonSteps
  steps:
    # Each step starts in working dir `<root>/project` (containing the cloned LLVM repo).
    - run:
        name: Install dependencies
        command: |
          cd ..
          if [ "$CI_OS" = "linux" ]; then
            export DEBIAN_FRONTEND=noninteractive
            apt-get -y update
            apt-get -yq install software-properties-common
            add-apt-repository -y ppa:ubuntu-toolchain-r/test
            apt-get -y update
            apt-get -yq install curl git-core g++-6 binutils-dev ninja-build
            echo "export CC=gcc-6" >> $BASH_ENV
            echo "export CXX=g++-6" >> $BASH_ENV
            # install CMake
            curl -L -o cmake-x64.tar.gz https://cmake.org/files/v3.10/cmake-3.10.0-Linux-x86_64.tar.gz
            mkdir cmake-x64
            tar -xf cmake-x64.tar.gz --strip 1 -C cmake-x64
            echo "export PATH=$PWD/cmake-x64/bin:$PATH" >> $BASH_ENV
          else
            # install CMake
            curl -L -o cmake-x64.tar.gz https://cmake.org/files/v3.10/cmake-3.10.0-Darwin-x86_64.tar.gz
            mkdir cmake-x64
            tar -xf cmake-x64.tar.gz --strip 3 -C cmake-x64
            # install Ninja
            curl -OL https://github.com/ninja-build/ninja/releases/download/v1.8.2/ninja-mac.zip
            mkdir ninja
            tar -xf ninja-mac.zip -C ninja
            echo "export PATH=$PWD/cmake-x64/bin:$PWD/ninja:$PATH" >> $BASH_ENV
          fi
    - checkout
    - run:
        name: Checkout git submodules
        command: git submodule update --init --recursive
    - run:
        name: Build LLVM
        command: |
          cd ..
          echo "$PATH"
          ninja --version
          cmake --version
          mkdir ninja-llvm
          cd ninja-llvm
          if [ "$CI_OS" = "linux" ]; then
            extraCMakeFlags="-DLLVM_BINUTILS_INCDIR=/usr/include -DCMAKE_CXX_FLAGS=-static-libstdc++"
          else
            extraCMakeFlags="-DLLVM_ENABLE_LIBCXX=True -DHAVE_FUTIMENS=0"
          fi
          cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$(dirname $PWD)/llvm-x64 -DLLVM_TARGETS_TO_BUILD="X86;AArch64;ARM;PowerPC;NVPTX" -DLLVM_ENABLE_ASSERTIONS=$LLVM_ENABLE_ASSERTIONS $extraCMakeFlags $CIRCLE_WORKING_DIRECTORY
          ninja -j3 install
          cd ..
    - run:
        name: Build compiler-rt & libFuzzer
        command: |
          cd ..
          LLVM_VERSION=$(llvm-x64/bin/llvm-config --version)
          LLVM_VERSION=${LLVM_VERSION:0:5}
          echo "$LLVM_VERSION"
          # Download & extract compiler-rt
          curl -OL http://releases.llvm.org/$LLVM_VERSION/compiler-rt-$LLVM_VERSION.src.tar.xz
          tar -xf compiler-rt-$LLVM_VERSION.src.tar.xz --no-same-owner
          # Build compiler-rt
          mkdir ninja-compiler-rt
          cd ninja-compiler-rt
          cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$(dirname $PWD)/llvm-x64/lib/clang/$LLVM_VERSION -DLLVM_CONFIG_PATH=$(dirname $PWD)/llvm-x64/bin/llvm-config ../compiler-rt-$LLVM_VERSION.src
          ninja -j3 install
          cd ..
          # Build libFuzzer
          mkdir libFuzzer
          cd libFuzzer
          if [ "$CI_OS" = "linux" ]; then
            ../project/lib/Fuzzer/build.sh
          else
            # OSX needs additional `-stdlib=libc++`
            for f in ../project/lib/Fuzzer/*.cpp; do
              ${CXX:-clang} -g -O2 -fno-omit-frame-pointer -std=c++11 $f -c -stdlib=libc++ &
            done
            wait
            ar ru libFuzzer.a Fuzzer*.o
          fi
          cp libFuzzer.a ../llvm-x64/lib
          cd ..
    - run:
        name: Pack installation dir
        no_output_timeout: 20m
        command: |
          cd ..
          mkdir artifacts
          assertsSuffix=""
          if [ "$LLVM_ENABLE_ASSERTIONS" = "ON" ]; then assertsSuffix="-withAsserts"; fi
          if [ -z "$CIRCLE_TAG" ]; then
            artifactBasename="llvm-${CIRCLE_SHA1:0:8}-$CI_OS-x86_64$assertsSuffix-$(date "+%Y%m%d")"
          else
            artifactBasename="llvm-${CIRCLE_TAG:5}-$CI_OS-x86_64$assertsSuffix"
          fi
          mv llvm-x64 $artifactBasename
          XZ_OPT=-9 tar -cJf "artifacts/$artifactBasename.tar.xz" $artifactBasename
    - run:
        name: Pack source dir
        command: |
          cd ..
          if [[ "$CI_OS" = "linux" && "$LLVM_ENABLE_ASSERTIONS" = "OFF" ]]; then
            if [ -z "$CIRCLE_TAG" ]; then
              artifactBasename="llvm-${CIRCLE_SHA1:0:8}.src"
            else
              artifactBasename="llvm-${CIRCLE_TAG:5}.src"
            fi
            XZ_OPT=-9 tar -cJf "artifacts/$artifactBasename.tar.xz" --exclude-vcs --transform=s/project/$artifactBasename/ project
          fi
    - store_artifacts:
        path: ../artifacts
    - run:
        name: Deploy to GitHub CI release
        command: |
          cd ..
          if [ "$CI_OS" = "linux" ]; then
            curl -L -o github-release.tar.bz2 https://github.com/aktau/github-release/releases/download/v0.7.2/linux-amd64-github-release.tar.bz2
          else
            curl -L -o github-release.tar.bz2 https://github.com/aktau/github-release/releases/download/v0.7.2/darwin-amd64-github-release.tar.bz2
          fi
          tar -xf github-release.tar.bz2 --strip 3
          if [ -z "$CIRCLE_TAG" ]; then CIRCLE_TAG="CI"; fi
          # Note: needs GITHUB_TOKEN environment variable
          ./github-release upload --user ldc-developers --repo llvm --tag $CIRCLE_TAG --name "$(cd artifacts && ls llvm-*x86_64*.tar.xz)" --file artifacts/llvm-*x86_64*.tar.xz
          if [[ "$CI_OS" = "linux" && "$LLVM_ENABLE_ASSERTIONS" = "OFF" ]]; then
            ./github-release upload --user ldc-developers --repo llvm --tag $CIRCLE_TAG --name "$(cd artifacts && ls llvm-*src.tar.xz)" --file artifacts/llvm-*src.tar.xz
          fi

version: 2
jobs:
  build-linux:
    <<: *commonSteps
    docker:
      - image: ubuntu:14.04
    environment:
      - CI_OS: "linux"
      - LLVM_ENABLE_ASSERTIONS: "OFF"
  build-linux-withAsserts:
    <<: *commonSteps
    docker:
      - image: ubuntu:14.04
    environment:
      - CI_OS: "linux"
      - LLVM_ENABLE_ASSERTIONS: "ON"
  build-osx:
    <<: *commonSteps
    macos:
      xcode: "9.0"
    environment:
      - CI_OS: "osx"
      - MACOSX_DEPLOYMENT_TARGET: 10.8
      - USE_LIBCPP: "true"
      - LLVM_ENABLE_ASSERTIONS: "OFF"
  build-osx-withAsserts:
    <<: *commonSteps
    macos:
      xcode: "9.0"
    environment:
      - CI_OS: "osx"
      - MACOSX_DEPLOYMENT_TARGET: 10.8
      - USE_LIBCPP: "true"
      - LLVM_ENABLE_ASSERTIONS: "ON"

workflows:
  version: 2
  build:
    jobs:
      - build-linux:
          # This is required to also trigger the job after pushing a tag.
          filters:
            tags:
              only: /.*/
      - build-osx:
          filters:
            tags:
              only: /.*/
      - build-linux-withAsserts:
          filters:
            tags:
              only: /.*/
      - build-osx-withAsserts:
          filters:
            tags:
              only: /.*/