.travis.yml

language: cpp

env:
  linux: &linux_env
    - PROCESSORS="$(nproc)"              # should be 2
  osx: &osx_env
    - PROCESSORS="$(sysctl -n hw.ncpu)"  # should be 2

# Linux needs OpenGL
# `matrix` tends to ignore apt packages defined at the top,
# so define a list here and reference it in each linux config
addons:
  apt:
    packages: &linux_packages
      - libglu1-mesa-dev

# OSX needs to install subversion to use `svn` in update-mods
addons:
  homebrew:
    packages:
    - subversion

matrix:
  include:
    # our Qt PPA only supports Qt 5.15.0 on Ubuntu Focus,
    # which Travis doesn't have yet, so we stick to 5.14.2
    - os: linux
      dist: xenial
      sudo: required
      compiler: gcc
      env:
        - *linux_env
        - QT_MAJOR=5
        - QT_MINOR=14
        - QT_PATCH=2
        - DIST=xenial
      addons:
        apt:
          packages:
            - *linux_packages
    - os: linux
      dist: bionic
      sudo: required
      compiler: gcc
      env:
        - *linux_env
        - QT_MAJOR=5
        - QT_MINOR=14
        - QT_PATCH=2
        - DIST=bionic
      addons:
        apt:
          packages:
            - *linux_packages
    - os: osx
      osx_image: xcode11.6
      compiler: clang
      env:
        - *osx_env
        # current brew stable is 5.15.0
        - QT_MAJOR=5
    - os: osx
      osx_image: xcode12
      compiler: clang
      env:
        - *osx_env
        # current brew stable is 5.15.0
        - QT_MAJOR=5

before_install:
  - |
    if [ "$TRAVIS_OS_NAME" = "linux" ]; then
      export QT_FULL="${QT_MAJOR}.${QT_MINOR}.${QT_PATCH}"  # ex: 5.15.0
      export QT_SHORT="${QT_MAJOR}${QT_MINOR}"              # ex: 515
      sudo add-apt-repository -y ppa:beineri/opt-qt-${QT_FULL}-${DIST}
      sudo apt-get update -qq
      sudo apt-get install -qq qt${QT_SHORT}base qt${QT_SHORT}multimedia
    fi
  - |
    if [ "$TRAVIS_OS_NAME" = "osx" ]; then
      brew update
      brew install qt${QT_MAJOR}
    fi

install:
  - export QT_SELECT=qt${QT_MAJOR}
  - $CXX --version
  - |
    if [ "$TRAVIS_OS_NAME" = "linux" ]; then
      . /opt/qt${QT_SHORT}/bin/qt${QT_SHORT}-env.sh
    fi
  - |
    if [ "$TRAVIS_OS_NAME" = "osx" ]; then
      brew link --force qt${QT_MAJOR}
    fi
  - ./update-mods

script:
  - qmake -v
  - qmake -r "QMAKE_CXX=$CXX" "QMAKE_CC=$CC"
  # g++ fails with virtual memory exhausted when too many processes are running
  # so don't use -j with it in.
  # In counterpart, `make` on Xenial will take more than 10mn, so to prevent
  # Travis from shutting down the process, use travis_wait to extend time to 20mn
  # by logging every minute for that duration.
  - |
    echo "Processors found on virtual machine: ${PROCESSORS}"
    if [ "$CXX" = "g++" ]; then
      echo "g++: do not use parallel jobs to avoid virtual memory exhaustion"
      travis_wait make -s
    else
      echo "clang: use ${PROCESSORS} parallel jobs"
      make -j${PROCESSORS} -s
    fi
  # Run with X11 display on Linux as some tests require a Qt app
  - |
    if [ "$TRAVIS_OS_NAME" = "linux" ]; then
      xvfb-run make -k check
    else
      make -k check
    fi