name: "Linux Build"

on: [push]

jobs:
  linux:
    name: '${{ matrix.os }}: ${{ matrix.compiler.vendor }}'
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os:
          - ubuntu-22.04
          - ubuntu-20.04
        compiler:
          # The NetSurf build system can't find LLVM AR (it looks for it
          # in /usr/lib instead of /usr/bin:
          #     `make: /usr/lib/llvm-ar: No such file or directory`).
          # So we need to make it explicit for llvm.
          - { vendor: gnu,  CC: gcc }
          - { vendor: llvm, CC: clang, AR: llvm-ar }

    steps:
    - name: Checkout repository
      uses: actions/checkout@v3
      with:
        fetch-depth: 1

    - name: apt-get install packages
      run: sudo apt-get update -qq &&
           sudo apt-get install --no-install-recommends -y
               bison
               build-essential
               ccache
               check
               clang
               flex
               git
               gperf
               libcurl4-openssl-dev
               libgtk-3-dev
               libhtml-parser-perl
               libjpeg-dev
               libpng-dev
               librsvg2-dev
               llvm
               pkg-config
               wbritish # Needed for `/usr/share/dict/words`, used by test

    - name: ccache
      uses: hendrikmuhs/ccache-action@v1.2
      with:
        key: ${{ github.job }}-${{ matrix.os }}-${{ matrix.compiler.vendor }}
        max-size: 128M

    - name: Build and install project libs
      env:
        CC: ${{ matrix.compiler.CC }}
        CXX: ${{ matrix.compiler.CXX }}
      run: |
          export TARGET_WORKSPACE="$(pwd)/projects"
          source docs/env.sh
          ns-clone -d -s
          ns-make-tools install
          ns-make-libs install

    - name: Disable -Werror
      # We can remove this step if we ever move to GitHub properly.
      run: |
          find . -type f -name Makefile | xargs sed -i 's/-Werror//'

    - name: Unit Tests
      # Fails when built with clang:
      #  test/corestrings.c:58:F:corestrings:corestrings_test:486:
      #  Assertion 'ires == NSERROR_NOMEM' failed: ires == 0, NSERROR_NOMEM == 2
      # Looks like `malloc_limit()` not working.
      if: ${{ matrix.compiler.vendor != 'llvm' }}
      env:
        CC: ${{ matrix.compiler.CC }}
        CXX: ${{ matrix.compiler.CXX }}
      run: |
          export TARGET_WORKSPACE="$(pwd)/projects"
          source docs/env.sh
          make test

    - name: Build NetSurf GTK
      env:
        CC: ${{ matrix.compiler.CC }}
        CXX: ${{ matrix.compiler.CXX }}
      run: |
          export TARGET_WORKSPACE="$(pwd)/projects"
          source docs/env.sh
          make -j"$(nproc)" TARGET=gtk

    - name: Build NetSurf Monkey
      env:
        CC: ${{ matrix.compiler.CC }}
        CXX: ${{ matrix.compiler.CXX }}
      run: |
          export TARGET_WORKSPACE="$(pwd)/projects"
          source docs/env.sh
          make -j"$(nproc)" TARGET=monkey

    - name: Build NetSurf Framebuffer
      env:
        CC: ${{ matrix.compiler.CC }}
        CXX: ${{ matrix.compiler.CXX }}
      run: |
          export TARGET_WORKSPACE="$(pwd)/projects"
          source docs/env.sh
          make -j"$(nproc)" TARGET=framebuffer