name: i586_dos_gcc_cross

on: [push, pull_request]

jobs:

  i586_dos_gcc_cross:
    runs-on: ubuntu-20.04
    timeout-minutes: 15
    env:
      CC: /opt/djgpp/bin/i586-pc-msdosdjgpp-gcc
      LDFLAGS: -static
    steps:
    - uses: actions/checkout@v3
    - name: Retrieve test compression corpus
      run: |
        git clone https://github.com/ariya/compression-corpus.git
        cd compression-corpus
        cd enwik
        unzip enwik8.zip
    - run: sudo apt-get -y -qq update
    - name: Prepare cross-compiler
      run: |
        curl -OL https://github.com/andrewwutw/build-djgpp/releases/download/v3.3/djgpp-linux64-gcc1210.tar.bz2
        tar xf djgpp-linux64-gcc1210.tar.bz2 -C /opt
    - name: Verify compiler version
      run: /opt/djgpp/bin/i586-pc-msdosdjgpp-gcc --version
    - name: Install DOSEMU2
      run: |
        sudo add-apt-repository -y ppa:dosemu2/ppa
        sudo apt update -y
        sudo apt install -y dosemu2
    - run: dosemu --version
    - name: Perform round-trip tests
      run: |
        cd tests
        ln -s ../compression-corpus/ corpus
        make test_roundtrip TEST_ROUNDTRIP=testrr
        file ./testrr.exe
        dosemu -dumb -K . -t -E "testrr corpus/"
    - name: 'Build and run example: 6pack and 6unpack'
      run: |
        cd examples
        ln -s ../compression-corpus/enwik/enwik8.txt enwik8.txt
        make
        file ./6pack.exe
        dosemu -K . -t -E "6pack.exe -v"
        dosemu -K . -t -E "6pack.exe enwik8.txt archive.6pk"
        mv enwik8.txt enwik8.txt.orig
        dosemu -K . -t -E "6unpack.exe -v"
        dosemu -K . -t -E "6unpack.exe archive.6pk"
        ls -l enwik8*