Add yaml defintions for CI tests with GitHub Actions

name: Commit Tests

env:

  release_major: 9

on: [push, pull_request]

jobs:

  build_llvm:

    name: check-all llvm/clang/lld

    runs-on: ${{ matrix.os }}

    strategy:

      fail-fast: false

      matrix:

        os:

          - ubuntu-latest

          - windows-latest

          - macOS-latest

    steps:

    - name: Setup Windows

      if: startsWith(matrix.os, 'windows')

      uses: llvm/actions/setup-windows@master

      with:

        arch: amd64

    - name: Install Ninja

      uses: llvm/actions/install-ninja@master

    - uses: actions/checkout@v1

      with:

        fetch-depth: 1

    - name: Test LLVM

      uses: llvm/actions/build-test-llvm-project@master

      with:

        cmake_args: -G Ninja -DLLVM_ENABLE_PROJECTS="clang;lld;" -DCMAKE_BUILD_TYPE=Release

  abi-dump:

    runs-on: ubuntu-latest

    strategy:

      matrix:

        name:

          - build-baseline

          - build-latest

        include:

          - name: build-baseline

            # FIXME: Referencing the env context does not work here

            # ref: llvmorg-${{ env.release_major }}.0.0

            ref: llvmorg-9.0.0

          - name: build-latest

            ref: ${{ github.sha }}

    steps:

    - name: Install Ninja

      uses: llvm/actions/install-ninja@master

    - name: Install abi-compliance-checker

      run: sudo apt-get install abi-dumper

    - name: Download source code

      uses: llvm/actions/get-llvm-project-src@master

      with:

        ref: ${{ matrix.ref }}

    - name: Configure

      run: |

        mkdir build

        cd build

        cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DLLVM_TARGETS_TO_BUILD="" -DLLVM_BUILD_LLVM_DYLIB=ON ../llvm

    - name: Build

      run: ninja -C build libLLVM-${{ env.release_major }}.so

    - name: Dump ABI

      run: abi-dumper -lver ${{ matrix.ref }} -skip-cxx -public-headers llvm/include -o ${{ matrix.ref }}.abi.tar.gz build/lib/libLLVM-${{ env.release_major }}.so

    - name: Upload ABI file

      uses: actions/upload-artifact@v1

      with:

        name: ${{ matrix.name }}

        path: ${{ matrix.ref }}.abi.tar.gz

  abi-compare:

    runs-on: ubuntu-latest

    needs:

      - abi-dump

    steps:

      - name: Download baseline

        uses: actions/download-artifact@v1

        with:

          name: build-baseline

      - name: Download latest

        uses: actions/download-artifact@v1

        with:

          name: build-latest

      - name: Install abi-compliance-checker

        run: sudo apt-get install abi-compliance-checker

      - name: Compare ABI

        run: abi-compliance-checker -l libLLVM-${{ env.release_major}}.so -old build-baseline/*.tar.gz -new build-latest/*.tar.gz

      - name: Upload ABI Comparison

        if: always()

        uses: actions/upload-artifact@v1

        with:

          name: compat-report-${{ github.sha }}

          path: compat_reports/