# We use generic to avoid Travis from overriding our compiler choices.
# Variables that can be set:
#
# CC - compiler name to use, e.g. clang-4.0
# BUILD_TYPE - defaults to Debug, can be Release
# CLANG_FORMAT - defaults to "no", set to name of clang-format-4.0 or better
# COVERAGE - defaults to OFF, set to ON to enable code coverage
# 
language: generic
sudo: false
matrix:
  include:
    # stock build (4.8 probably) - we also do a clang-format check here.
    - os: linux
      dist: trusty
      addons:
        apt:
          sources:
            - llvm-toolchain-trusty-4.0
          packages:
            - colordiff
            - clang-format-4.0
      env: CLANG_FORMAT=clang-format-4.0
  
    # default gcc 4.9 build - we also do a clang-format check here.
    - os: linux
      dist: trusty
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-trusty-4.0
          packages:
            - colordiff
            - gcc-4.9
            - clang-format-4.0
      env: CC=gcc-4.9

    # gcc 7 (latest version) build
    - os: linux
      dist: trusty
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - gcc-7
      env: CC=gcc-7
    # clang v4 build
    - os: linux
      dist: trusty
      addons:
        apt:
          sources:
            - llvm-toolchain-trusty-4.0
          packages:
            - clang-4.0
      env: CC=clang-4.0

    # release build using clang 4
    - os: linux
      dist: trusty
      addons:
        apt:
          sources:
            - llvm-toolchain-trusty-4.0
          packages:
            - clang-4.0
      env: CC=clang-4.0 BUILD_TYPE=Release

    # code coverage build
    - os: linux
      dist: trusty
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - gcc-7
            - g++-7
      env: CC=gcc-7 CXX=g++-7 COVERAGE=ON GCOV=gcov-7

    # One MacOS X build
    - os: osx
      env: CC=clang

before_script:
  - uname -a
  - printenv
  - cmake --version

script:
  # Perform out-of-source build
  - mkdir build
  - cd build
  # Perform CMake backend generation, build, and test
  - cmake -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -DNNG_ENABLE_COVERAGE=${COVERAGE:-OFF} ..
  - cmake --build . -- -j4
  - ctest --output-on-failure -C ${BUILD_TYPE:-Debug}
  - env CLANG_FORMAT=${CLANG_FORMAT:-no} ../etc/format-check.sh

after_success:
  - ../etc/codecov.sh