os: linux # Use linux unless specified otherwise.
dist: bionic
language: cpp

jobs:
  include:
    - os: linux
      compiler: g++
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
            - sourceline: 'deb https://storage.googleapis.com/bazel-apt stable jdk1.8'
              key_url: 'https://bazel.build/bazel-release.pub.gpg'
          packages:
            - g++-9
            - bazel
      env:
        - CXX_COMPILER=g++-9 CC_COMPILER=gcc-9

    - os: linux
      compiler: g++
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
            - sourceline: 'deb https://storage.googleapis.com/bazel-apt stable jdk1.8'
              key_url: 'https://bazel.build/bazel-release.pub.gpg'
          packages:
            - g++-10
            - bazel
      env:
        - CXX_COMPILER=g++-10 CC_COMPILER=gcc-10

    - os: linux
      compiler: clang++
      addons:
        apt:
          sources:
            - sourceline: 'deb https://apt.llvm.org/bionic/ llvm-toolchain-bionic-7 main'
              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
            - sourceline: 'deb https://storage.googleapis.com/bazel-apt stable jdk1.8'
              key_url: 'https://bazel.build/bazel-release.pub.gpg'
          packages:
            - clang-7
            - bazel
      env:
        - CXX_COMPILER=clang++-7 CC_COMPILER=clang-7

    - os: linux
      compiler: clang++
      addons:
        apt:
          sources:
            - sourceline: 'deb https://apt.llvm.org/bionic/ llvm-toolchain-bionic-8 main'
              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
            - sourceline: 'deb https://storage.googleapis.com/bazel-apt stable jdk1.8'
              key_url: 'https://bazel.build/bazel-release.pub.gpg'
          packages:
            - clang-8
            - bazel
      env:
        - CXX_COMPILER=clang++-8 CC_COMPILER=clang-8

    - os: linux
      compiler: clang++
      addons:
        apt:
          sources:
            - sourceline: 'deb https://apt.llvm.org/bionic/ llvm-toolchain-bionic-9 main'
              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
            - sourceline: 'deb https://storage.googleapis.com/bazel-apt stable jdk1.8'
              key_url: 'https://bazel.build/bazel-release.pub.gpg'
          packages:
            - clang-9
            - bazel
      env:
        - CXX_COMPILER=clang++-9 CC_COMPILER=clang-9

    - os: linux
      compiler: clang++
      addons:
        apt:
          sources:
            - sourceline: 'deb https://apt.llvm.org/bionic/ llvm-toolchain-bionic-10 main'
              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
            - sourceline: 'deb https://storage.googleapis.com/bazel-apt stable jdk1.8'
              key_url: 'https://bazel.build/bazel-release.pub.gpg'
          packages:
            - clang-10
            - bazel
      env:
        - CXX_COMPILER=clang++-10 CC_COMPILER=clang-10

    - os: osx
      compiler: clang++
      addons:
        homebrew:
          packages:
            - bazel
      osx_image: xcode10.3
      env:
        - CXX_COMPILER=clang++ CC_COMPILER=clang

    - os: osx
      compiler: clang++
      addons:
        homebrew:
          packages:
            - bazel
      osx_image: xcode11.6
      env:
        - CXX_COMPILER=clang++ CC_COMPILER=clang

    - os: osx
      compiler: clang++
      addons:
        homebrew:
          packages:
            - bazel
      osx_image: xcode12.2
      env:
        - CXX_COMPILER=clang++ CC_COMPILER=clang

install:
  - export CC=${CC_COMPILER}
  - export CXX=${CXX_COMPILER}
  - JOBS=2 # Travis machines have 2 cores.

before_script:
  - rm -rf build
  - mkdir -p build
  - cd build

script:
  - cmake -DCMAKE_BUILD_TYPE=Debug ..
  - cmake --build . --config Debug -- -j${JOBS}
  - ctest --output-on-failure -C Debug -j${JOBS}
  - rm -rf ./*
  - cmake -DCMAKE_BUILD_TYPE=Release ..
  - cmake --build . --config Release -- -j${JOBS}
  - ctest --output-on-failure -C Release -j${JOBS}
  - cd ..
  - |
    if command -v bazel &> /dev/null; then
      bazel test //... --curses no -j ${JOBS}
    fi

notifications:
  email: false