ci.yml

name: CI
on: [push, pull_request, workflow_dispatch]

jobs:
  build:
    strategy:
      fail-fast: false
      max-parallel: 20
      matrix:
        branch: [version-1-6, version-2-0, version-2-2, devel]
        target:
          - os: linux
            cpu: amd64
          - os: linux
            cpu: i386
          - os: macos
            cpu: amd64
          - os: macos
            cpu: arm64
          - os: windows
            cpu: amd64
          - os: windows
            cpu: i386
        include:
          - target:
              os: linux
            builder: ubuntu-latest
          - target:
              os: macos
              cpu: amd64
            builder: macos-13
          - target:
              os: macos
              cpu: arm64
            builder: macos-latest
          - target:
              os: windows
            builder: windows-latest

    defaults:
      run:
        shell: bash

    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }}-(Nim ${{ matrix.branch }})'
    runs-on: ${{ matrix.builder }}
    steps:
      - name: Git checkout
        uses: actions/checkout@v4
        with:
          submodules: true

      - name: Install build dependencies (Linux i386)
        if: runner.os == 'Linux' && matrix.target.cpu == 'i386'
        run: |
          sudo dpkg --add-architecture i386
          sudo apt-fast update -qq
          sudo DEBIAN_FRONTEND='noninteractive' apt-fast 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@v4
        with:
          path: external/mingw-${{ matrix.target.cpu }}
          key: 'llvm-mingw-17-${{ matrix.target.cpu }}'

      - name: Restore Nim DLLs dependencies (Windows) from cache
        if: runner.os == 'Windows'
        id: windows-dlls-cache
        uses: actions/cache@v4
        with:
          path: external/dlls-${{ matrix.target.cpu }}
          key: 'dlls-${{ matrix.target.cpu }}'

      - name: Install LLVM-MinGW dependency (Windows)
        if: >
          steps.windows-mingw-cache.outputs.cache-hit != 'true' &&
          runner.os == 'Windows'
        run: |
          mkdir -p external
          MINGW_BASE="https://github.com/mstorsjo/llvm-mingw/releases/download/20230905"
          if [[ '${{ matrix.target.cpu }}' == 'amd64' ]]; then
            MINGW_URL="$MINGW_BASE/llvm-mingw-20230905-ucrt-x86_64.zip"
            ARCH=64
          else
            MINGW_URL="$MINGW_BASE/llvm-mingw-20230905-ucrt-i686.zip"
            ARCH=32
          fi
          curl -L "$MINGW_URL" -o "external/mingw-${{ matrix.target.cpu }}.zip"
          7z x -y "external/mingw-${{ matrix.target.cpu }}.zip" -oexternal/mingw-${{ matrix.target.cpu }}/
          mv external/mingw-${{ matrix.target.cpu }}/**/* ./external/mingw-${{ matrix.target.cpu }}

      - name: Install DLLs dependencies (Windows)
        if: >
          steps.windows-dlls-cache.outputs.cache-hit != 'true' &&
          runner.os == 'Windows'
        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'
        run: |
          echo '${{ github.workspace }}'"/external/mingw-${{ matrix.target.cpu }}/bin" >> $GITHUB_PATH
          echo '${{ github.workspace }}'"/external/dlls-${{ matrix.target.cpu }}" >> $GITHUB_PATH

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

      - name: Restore prebuilt Nim from cache
        id: nim-cache
        uses: actions/cache@v4
        with:
          path: NimBinaries
          key: '${{ matrix.target.os }}-${{ matrix.target.cpu }}-${{ steps.versions.outputs.nimbus_build_system }}'

      - name: Derive environment variables
        run: |
          if [[ '${{ matrix.target.cpu }}' == 'amd64' ]]; then
            PLATFORM=x64
          elif [[ '${{ matrix.target.cpu }}' == 'arm64' ]]; then
            PLATFORM=arm64
          else
            PLATFORM=x86
          fi
          echo "PLATFORM=$PLATFORM" >> $GITHUB_ENV
          ncpu=
          MAKE_CMD="make"
          case '${{ runner.os }}' in
          'Linux')
            ncpu=$(nproc)
            ;;
          'macOS')
            ncpu=$(sysctl -n hw.ncpu)
            ;;
          'Windows')
            ncpu=$NUMBER_OF_PROCESSORS
            MAKE_CMD="mingw32-make"
            ;;
          esac
          [[ -z "$ncpu" || $ncpu -le 0 ]] && ncpu=1
          echo "ncpu=$ncpu" >> $GITHUB_ENV
          echo "MAKE_CMD=${MAKE_CMD}" >> $GITHUB_ENV

      - name: Build Nim and associated tools
        run: |
          curl -O -L -s -S https://raw.githubusercontent.com/status-im/nimbus-build-system/master/scripts/build_nim.sh
          env MAKE="${MAKE_CMD} -j${ncpu}" ARCH_OVERRIDE=${PLATFORM} NIM_COMMIT=${{ matrix.branch }} \
            QUICK_AND_DIRTY_COMPILER=1 QUICK_AND_DIRTY_NIMBLE=1 CC=gcc \
            bash build_nim.sh nim csources dist/nimble NimBinaries
          echo '${{ github.workspace }}/nim/bin' >> $GITHUB_PATH

      - name: Run tests
        run: |
          gcc --version
          nim --version
          if [[ "${{ matrix.target.os }}" == "windows" ]]; then
            # https://github.com/status-im/nimbus-eth2/issues/3121
            export NIMFLAGS="-d:nimRawSetjmp"
          fi
          ${MAKE_CMD} -j ${ncpu}
          ${MAKE_CMD} test