.travis.yml

language: cpp

cache:
  apt: true

matrix:
  include:
    - compiler: gcc
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-4.8
            - zlib1g-dev
      env: COMPILER=g++-4.8
    - compiler: clang
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.7
          packages:
            - clang-3.7
            - zlib1g-dev
      env: COMPILER=clang-3.7

env:
  global:
    - NUM_CPU="`grep processor /proc/cpuinfo | wc -l`"; echo $NUM_CPU
    - BUILD_TYPE="RELEASE"
    - ALEMBIC_SOURCE=${TRAVIS_BUILD_DIR}
    - ALEMBIC_BUILD=${TRAVIS_BUILD_DIR}/build
    - ALEMBIC_INSTALL=${ALEMBIC_BUILD}/install
    # OPENEXR
    - OPENEXR_ROOT=${HOME}/openexr
    - OPENEXR_SOURCE=${OPENEXR_ROOT}/source
    - ILMBASE_BUILD=${OPENEXR_ROOT}/IlmBasebuild
    - OPENEXR_INSTALL=${OPENEXR_ROOT}/install
    # CMAKE
    - CMAKE_URL="https://cmake.org/files/v3.4/cmake-3.4.1-Linux-x86_64.tar.gz"
    - CMAKE_ROOT=${HOME}/cmake
    - CMAKE_SOURCE=${CMAKE_ROOT}/source
    - CMAKE_INSTALL=${CMAKE_ROOT}/install

before_install:
 # CMAKE download and install
 - >
    if [ "$(ls -A ${CMAKE_INSTALL})" ]; then
      echo "CMake found in cache.";
    else
      mkdir --parent ${CMAKE_SOURCE}
      mkdir --parent ${CMAKE_INSTALL}
      travis_retry wget --no-check-certificate --quiet -O - ${CMAKE_URL} | tar --strip-components=1 -xz -C ${CMAKE_INSTALL}
    fi
 - export PATH=${CMAKE_INSTALL}/bin:${PATH};
 - cmake --version
 # OPENEXR
 - >
    if [ "$(ls -A $OPENEXR_INSTALL)" ]; then
      echo "OpenEXR found in cache.";
    else
      mkdir --parent $OPENEXR_SOURCE
      mkdir --parent $ILMBASE_BUILD
      mkdir --parent $OPENEXR_INSTALL
      travis_retry wget https://github.com/openexr/openexr/archive/v2.2.0.tar.gz;
      tar -xf v2.2.0.tar.gz;
      mv openexr-2.2.0/* $OPENEXR_SOURCE;
    fi

install:
  # OPENEXR only IlmBase is required
  - >
     if [ ! "$(ls -A $OPENEXR_INSTALL)" ]; then
       cd $ILMBASE_BUILD
       cmake \
         -DCMAKE_INSTALL_PREFIX=$OPENEXR_INSTALL \
         $OPENEXR_SOURCE/IlmBase;
       make -j 2 > null;
       make install;
     fi

before_script:
  # Create build folder
  - mkdir --parent $ALEMBIC_BUILD
  - cd $ALEMBIC_BUILD
  # Classic release build
  - >
     cmake $ALEMBIC_SOURCE \
        -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
        -DCMAKE_INSTALL_PREFIX=$ALEMBIC_INSTALL \
        -DILMBASE_ROOT=$OPENEXR_INSTALL;
script:
# limit GCC builds to a reduced number of thread for the virtual machine
  - make install -j 2 VERBOSE=1
# Perform unit tests
  - make test


cache:
  directories:
    - $OPENEXR_INSTALL
    - $CMAKE_INSTALL