name: CI Linux

on:
  push:
    branches:
      - master
    paths:
      - 'CMakeLists.txt'
      - 'include/sys/*'
      - 'src/common/*'
      - 'src/linux/*'
      - 'test/*'
      - '.github/workflows/ci-linux.yml'
  pull_request:
    branches:
      - master
    paths:
      - 'CMakeLists.txt'
      - 'include/sys/*'
      - 'src/common/*'
      - 'src/linux/*'
      - 'test/*'
      - '.github/workflows/ci-linux.yml'

env:
  ASAN_OPTIONS: symbolize=1 detect_leaks=1 detect_stack_use_after_return=1
  LSAN_OPTIONS: fast_unwind_on_malloc=0:malloc_context_size=50
  KQUEUE_DEBUG: yes
  M_PERTURB: "0x42"

jobs:
  linux-build-and-test:
    timeout-minutes: 10
    strategy:
      fail-fast: false
      matrix:
          env:
            - { CC: gcc,      OS: ubuntu-20.04, NAME: release-gcc,               BUILD_TYPE: Release    }
            - { CC: clang,    OS: ubuntu-20.04, NAME: release-clang,             BUILD_TYPE: Release    }
            - { CC: musl-gcc, OS: ubuntu-20.04, NAME: release-musl-gcc,          BUILD_TYPE: Release    }
            - { CC: clang,    OS: ubuntu-20.04, NAME: debug-asan,                BUILD_TYPE: Debug,    ENABLE_ASAN: YES,   ENABLE_LSAN: YES,   ENABLE_UBSAN: YES }
            - { CC: clang,    OS: ubuntu-20.04, NAME: debug-tsan,                BUILD_TYPE: Debug,    ENABLE_TSAN: YES }
            # Older kernel triggers a switch to posix/proc as it doesn't support pidfd.
            - { CC: clang,    OS: ubuntu-18.04, NAME: debug-asan-posix-proc,     BUILD_TYPE: Debug,    ENABLE_ASAN: YES,   ENABLE_LSAN: YES,   ENABLE_UBSAN: YES }
            - { CC: clang,    OS: ubuntu-18.04, NAME: debug-tsan-posix-proc,     BUILD_TYPE: Debug,    ENABLE_TSAN: YES }

    runs-on: ${{ matrix.env.OS }}

    env: ${{ matrix.env }}

    name: "${{ matrix.env.NAME }}"

    steps:
    - uses: actions/checkout@v2

    - name: Add llvm source
      if: ${{ matrix.env.CC == 'clang' && matrix.env.OS == 'ubuntu-18.04' }}
      uses: myci-actions/add-deb-repo@10
      with:
        repo: deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-10 main
        repo-name: llvm-toolchain
        keys-asc: https://apt.llvm.org/llvm-snapshot.gpg.key

    - name: Add GCC source
      if: ${{ matrix.env.CC == 'gcc' && matrix.env.OS == 'ubuntu-18.04' }}
      run: |
        sudo add-apt-repository ppa:ubuntu-toolchain-r/test

    - name: Install LLVM 10
      if: ${{ matrix.env.CC == 'clang' }}
      run: |
        sudo apt-get install -y --no-install-recommends clang-10 llvm-10 gdb
        sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-10 60 && sudo update-alternatives --set clang /usr/bin/clang-10
        sudo update-alternatives --install /usr/bin/llvm-symbolizer llvm-symbolizer /usr/bin/llvm-symbolizer-10 60 && sudo update-alternatives --set llvm-symbolizer /usr/bin/llvm-symbolizer-10

    - name: Install GCC 7
      if: ${{ matrix.env.CC == 'gcc' }}
      run: |
        sudo apt-get install -y --no-install-recommends gcc-7 gccgo-7 gdb
        sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 9999 && sudo update-alternatives --config gcc

    - name: Install MUSL
      if: ${{ matrix.env.CC == 'musl-gcc' }}
      run: |
        sudo apt-get install -y --no-install-recommends musl musl-dev musl-tools

    - name: Install other build deps
      run: |
        sudo apt-get install -y \
          build-essential \
          debhelper \
          devscripts \
          dh-make \
          fakeroot

    - name: Configure build system
      run: |
        cmake . -G "Unix Makefiles" \
          -DCMAKE_INSTALL_PREFIX="/usr" \
          -DCMAKE_INSTALL_LIBDIR="lib"  \
          -DCMAKE_VERBOSE_MAKEFILE:BOOL="ON" \
          -DENABLE_TESTING="YES" \
          -DENABLE_ASAN="${ENABLE_ASAN:-NO}" \
          -DENABLE_LSAN="${ENABLE_LSAN:-NO}" \
          -DENABLE_UBSAN="${ENABLE_UBSAN:-NO}" \
          -DENABLE_TSAN="${ENABLE_TSAN:-NO}" \
          -DCMAKE_BUILD_TYPE="${BUILD_TYPE}"
        cat config.h

    - name: Build libkqueue
      run: make -j2

    - name: Run tests
      env:
        KQUEUE_DEBUG: 1
      run: test/libkqueue-test

    - name: Build debian packages
      run: cpack -G DEB

    - name: Install debian packages
      run: sudo apt-get install -y ./*.deb