build.yml

name: Build Toolchain
on:
  push:
    branches:
      - main
    tags:
      - r**
  pull_request:
  workflow_dispatch:
jobs:
  build:
    name: Build Toolchain
    runs-on: ubuntu-22.04
    steps:
    - name: Checkout Repo
      uses: actions/checkout@main
    - name: Free additional disk space
      uses: jlumbroso/free-disk-space@main
      with:
        tool-cache: true
        android: false
        dotnet: true
        haskell: true
        large-packages: true
        docker-images: true
        swap-storage: true
    - name: Build Toolchain
      run: bash build.sh
    - name: Waiting for debugger
      if: ${{ failure() }}
      uses: mxschmitt/action-tmate@v3
    - name: Upload Build Archive
      uses: actions/upload-artifact@v2
      with:
        name: output-${{ github.sha }}
        path: ${{ github.workspace }}/output
  build-flang:
    name: Build Flang Libraries
    runs-on: ubuntu-22.04
    needs: build
    strategy:
      matrix:
#         target_arch_or_type: [host, aarch64, arm, i686, x86_64]
        target_arch_or_type: [host, aarch64, x86_64]
    steps:
    - name: Checkout Repo
      uses: actions/checkout@main
    - name: Install dependicies
      run: |
        sudo apt update
        sudo apt install -yq cmake ninja-build libzstd-dev
    - name: Fetch archives
      uses: actions/download-artifact@v2
      with:
        path: ./
    - name: Copy archives
      run: |
        cp output-${{ github.sha }}/*.tar.bz2 ./
        rm -rf output-${{ github.sha }}
    - name: Extract Tarballs
      run: |
        ls *.tar.bz2 | xargs -n1 tar xf
        rm -rf *.tar.bz2
    - name: Build Flang
      env:
        BUILD_ARCH_OR_TYPE: ${{ matrix.target_arch_or_type }}
      run: bash build-flang.sh
    - name: Waiting for debugger
      if: ${{ failure() }}
      uses: mxschmitt/action-tmate@v3
    - name: Upload Build Archive
      uses: actions/upload-artifact@v2
      with:
        name: output-flang-${{ matrix.target_arch_or_type }}-${{ github.sha }}
        path: ${{ github.workspace }}/output-flang
  release:
    name: Create Github Release
    if: ${{ github.event_name == 'push' && startsWith(github.ref, 'refs/tags/') }}
    needs: build-flang
    runs-on: ubuntu-22.04
    steps:
    - name: Fetch archives
      uses: actions/download-artifact@v2
      with:
        path: ./
    - name: Copy archives
      run: |
        cp output-${{ github.sha }}/*.tar.bz2 ./
        cp output-flang-*-${{ github.sha }}/*.tar.bz2 ./
        rm -rf output-${{ github.sha }} output-flang-${{ github.sha }}
        rm -rf package-llvm-project.tar.bz2 package-stage2-install.tar.bz2
    - name: Get checksums
      id: checksums
      run: |
        checksums=$(printf 'SHA-256:\n```\n%s\n```\n' "$(sha256sum *.tar.bz2)")
        checksums="${checksums//'%'/'%25'}"
        checksums="${checksums//$'\n'/'%0A'}"
        checksums="${checksums//$'\r'/'%0D'}"
        echo "::set-output name=checksums::$checksums"
    - name: Get tag
      id: tag
      uses: dawidd6/action-get-tag@v1
    - name: Publish GitHub release
      uses: svenstaro/upload-release-action@v2
      with:
        repo_token: ${{ secrets.GITHUB_TOKEN }}
        file: "*.tar.bz2"
        file_glob: true
        release_name: "Android NDK toolchain with Flang" 
        tag: ${{ steps.tag.outputs.tag }}
        body: ${{ steps.checksums.outputs.checksums }}