name: Continuous Integration

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  build-and-test:
    strategy:
      matrix:
        os: [ubuntu-18.04, ubuntu-20.04]
        compiler: ['CC=gcc CXX=g++', 'CC=clang CXX=clang++']
        interface: [ncurses, gtk]

    # NOTE: The virtual environments already contain both GCC and Clang
    runs-on: ${{ matrix.os }}

    steps:

    - name: Recursive Git Clone
      uses: actions/checkout@v2
      with:
        submodules: recursive

    - name: Update Repositories
      run: sudo apt-get update
    - name: Install Build Dependencies
      run: >
        sudo apt-get install -y
        build-essential
        autoconf automake libtool
        libglib2.0-dev libncurses-dev libgtk-3-dev gob2 xvfb
        groff doxygen

    - name: Configure Build
      run: |
        autoreconf -i
        ./configure --with-interface=${{ matrix.interface }} --enable-html-manual ${{ matrix.compiler }}

    # NOTE: xvfb-run emulates an XServer and is required when building
    # Gtk versions (since SciTECO calls itself during the build).
    - name: make
      run: xvfb-run -a make
    - name: make install
      run: sudo xvfb-run -a make install
    - name: Run Test Suite
      run: xvfb-run -a make check
    - name: Build Developer Documentation
      run: cd doc && make devdoc
    # FIXME: Will try to perform an out-of-tree build which will not
    # work without manual intervention due to Scintilla.
#   - name: make distcheck
#     run: xvfb-run -a make distcheck
    - name: Build Source Tarball
      run: make dist

  # This is a separate job since we don't need to build Debian packages
  # using Clang and there is no need to run "make all".
  debian-packages:
    strategy:
      matrix:
        os: [ubuntu-18.04, ubuntu-20.04]

    runs-on: ${{ matrix.os }}

    steps:

    - name: Recursive Git Clone
      uses: actions/checkout@v2
      with:
        submodules: recursive

    - name: Update Repositories
      run: sudo apt-get update
    - name: Install Build Dependencies
      run: >
        sudo apt-get install -y
        devscripts build-essential lintian debhelper
        autoconf automake libtool
        libglib2.0-dev libncurses-dev
        groff-base

    # NOTE: We need to configure the build directory only to generate distribute.mk.
    - name: Configure Build
      run: |
        autoreconf -i
        ./configure

    # NOTE: Packages are left in debian-temp/.
    - name: Build Debian Package
      run: ./distribute.mk debian-binary
    # FIXME: For doing Windows builds, we need a few manually built packages
    # (PDCurses, Glib...).
    # Perhaps they can be uploaded to Sourceforge and simply downloaded here.
    # Alternatively, we could manually prepare a Docker container image or
    # even build them from scratch here.
#   - name: Build Windows Bundle
#     run: ./distribute.mk mingw-binary

    # NOTE: There is no way to prevent Github zipping the artifact.
    - name: Archive Debian Package (ncurses)
      uses: actions/upload-artifact@v2
      with:
        name: ${{ matrix.os }} package (ncurses)
        path: debian-temp/*.deb