name: Build and run tests

on: [push, pull_request]

jobs:
  test:
    strategy:
      matrix:
        runner:
          - ubuntu-20.04
          - macOS-10.15
    runs-on: ${{ matrix.runner }}
    steps:

    - uses: actions/checkout@v2

    - name: Install dependencies (Linux)
      if: runner.os == 'Linux'
      run: |
        sudo apt-get update
        sudo apt-get install g++ gperf build-essential bison flex libreadline-dev gawk tcl-dev libffi-dev git graphviz xdot pkg-config python python3 libboost-system-dev libboost-python-dev libboost-filesystem-dev zlib1g-dev

    - name: Install dependencies (macOS)
      if: runner.os == 'macOS'
      run: |
        brew install bison gawk libffi pkg-config bash

    - name: Setup environment (Linux)
      if: runner.os == 'Linux'
      run: |
        echo "procs=$(nproc)" >> $GITHUB_ENV

    - name: Setup environment (macOS)
      if: runner.os == 'macOS'
      run: |
        echo "$(brew --prefix bison)/bin" >> $GITHUB_PATH
        echo "procs=$(sysctl -n hw.ncpu)" >> $GITHUB_ENV

    - name: Get iverilog
      run: |
        git clone git://github.com/steveicarus/iverilog.git

    - name: Cache iverilog
      id: cache-iverilog
      uses: actions/cache@v2
      with:
        path: iverilog-bin
        key: ${{ runner.os }}-${{ hashFiles('iverilog/.git/refs/heads/master') }}

    - name: Build iverilog
      if: steps.cache-iverilog.outputs.cache-hit != 'true'
      run: |
        mkdir iverilog-bin
        cd iverilog
        autoconf
        CC=gcc CXX=g++ ./configure --prefix=$PWD/../iverilog-bin
        make -j${{ env.procs }}
        make install

    - name: Build yosys
      run: |
        make -j${{ env.procs }}

    - name: Run tests
      run: |
        PATH=$PWD/iverilog-bin/bin:$PATH make -j${{ env.procs }} test