name: nim-dagger CI
on: [push, pull_request]

jobs:
  build:
    strategy:
      fail-fast: false
      max-parallel: 20
      matrix:
        branch: [v1.4.6]
        target:
          # Unit tests
          - os: linux
            cpu: amd64
            TEST_KIND: unit-tests
          - os: linux
            cpu: i386
            TEST_KIND: unit-tests
          - os: macos
            cpu: amd64
            TEST_KIND: unit-tests
          - os: windows
            cpu: i386
            TEST_KIND: unit-tests
          - os: windows
            cpu: amd64
            TEST_KIND: unit-tests
        include:
          - target:
              os: linux
            builder: ubuntu-18.04
          - target:
              os: macos
            builder: macos-10.15
          - target:
              os: windows
            builder: windows-2019
    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }} (${{ matrix.branch }})'
    runs-on: ${{ matrix.builder }}
    steps:
      - name: Checkout nim-dagger
        uses: actions/checkout@v2
        with:
          path: nim-dagger
          submodules: true

      - name: Derive environment variables
        shell: bash
        run: |
          if [[ '${{ matrix.target.cpu }}' == 'amd64' ]]; then
            ARCH=64
            PLATFORM=x64
          else
            ARCH=32
            PLATFORM=x86
          fi
          echo "ARCH=$ARCH" >> $GITHUB_ENV
          echo "PLATFORM=$PLATFORM" >> $GITHUB_ENV
          ncpu=
          ext=
          case '${{ runner.os }}' in
          'Linux')
            ncpu=$(nproc)
            ;;
          'macOS')
            ncpu=$(sysctl -n hw.ncpu)
            ;;
          'Windows')
            ncpu=$NUMBER_OF_PROCESSORS
            ext=.exe
            ;;
          esac
          [[ -z "$ncpu" || $ncpu -le 0 ]] && ncpu=1
          echo "ncpu=$ncpu" >> $GITHUB_ENV
          echo "ext=$ext" >> $GITHUB_ENV

      - name: Install build dependencies (Linux i386)
        if: runner.os == 'Linux' && matrix.target.cpu == 'i386'
        run: |
          sudo dpkg --add-architecture i386
          sudo apt-get update -qq
          sudo DEBIAN_FRONTEND='noninteractive' apt-get install \
            --no-install-recommends -yq gcc-multilib g++-multilib \
            libssl-dev:i386
          mkdir -p external/bin
          cat << EOF > external/bin/gcc
          #!/bin/bash
          exec $(which gcc) -m32 "\$@"
          EOF
          cat << EOF > external/bin/g++
          #!/bin/bash
          exec $(which g++) -m32 "\$@"
          EOF
          chmod 755 external/bin/gcc external/bin/g++
          echo '${{ github.workspace }}/external/bin' >> $GITHUB_PATH

      - name: Restore MinGW-W64 (Windows) from cache
        if: runner.os == 'Windows'
        id: windows-mingw-cache
        uses: actions/cache@v2
        with:
          path: external/mingw-${{ matrix.target.cpu }}
          key: 'mingw-${{ matrix.target.cpu }}'

      - name: Restore Nim DLLs dependencies (Windows) from cache
        if: runner.os == 'Windows'
        id: windows-dlls-cache
        uses: actions/cache@v2
        with:
          path: external/dlls-${{ matrix.target.cpu }}
          key: 'dlls-${{ matrix.target.cpu }}'

      - name: Install MinGW64 dependency (Windows)
        if: >
          steps.windows-mingw-cache.outputs.cache-hit != 'true' &&
          runner.os == 'Windows'
        shell: bash
        run: |
          mkdir -p external
          curl -L "https://nim-lang.org/download/mingw$ARCH.7z" -o "external/mingw-${{ matrix.target.cpu }}.7z"
          7z x -y "external/mingw-${{ matrix.target.cpu }}.7z" -oexternal/
          mv external/mingw$ARCH external/mingw-${{ matrix.target.cpu }}

      - name: Install DLLs dependencies (Windows)
        if: >
          steps.windows-dlls-cache.outputs.cache-hit != 'true' &&
          runner.os == 'Windows'
        shell: bash
        run: |
          mkdir -p external
          curl -L "https://nim-lang.org/download/windeps.zip" -o external/windeps.zip
          7z x -y external/windeps.zip -oexternal/dlls-${{ matrix.target.cpu }}

      - name: Path to cached dependencies (Windows)
        if: >
          runner.os == 'Windows'
        shell: bash
        run: |
          echo "${{ github.workspace }}/external/mingw-${{ matrix.target.cpu }}/bin" >> $GITHUB_PATH
          echo "${{ github.workspace }}/external/dlls-${{ matrix.target.cpu }}" >> $GITHUB_PATH

      - name: Setup environment
        shell: bash
        run: echo '${{ github.workspace }}/nim/bin' >> $GITHUB_PATH

      - name: Get latest nimbus-build-system commit hash
        id: versions
        shell: bash
        run: |
          getHash() {
            git ls-remote "https://github.com/$1" "${2:-HEAD}" | cut -f 1
          }
          nbsHash=$(getHash status-im/nimbus-build-system)
          echo "::set-output name=nimbus_build_system::$nbsHash"

      - name: Restore prebuilt Nim binaries from cache
        id: nim-cache
        uses: actions/cache@v2
        with:
          path: nim-dagger/NimBinaries
          key: 'nim-${{ matrix.target.os }}-${{ matrix.target.cpu }}-${{ steps.versions.outputs.nimbus_build_system }}'

      - name: Build Nim and Dagger dependencies
        shell: bash
        working-directory: nim-dagger
        run: |
          if [[ "${{ runner.os }}" == "macOS" ]]; then
            ulimit -n 1024
          fi
          make -j$ncpu ARCH_OVERRIDE=$PLATFORM CI_CACHE=NimBinaries QUICK_AND_DIRTY_COMPILER=1 update

      - name: Run nim-dagger tests
        shell: bash
        working-directory: nim-dagger
        run: |
          make test