.travis.yml

# Language selection
language: cpp

cache: ccache

# Environment variables:
# To avoid too many builds, we mix some options (although independent tests would have been better)
matrix:
 include:
   #### linux
 - os: linux
   python: 3
   env: EXTRA_BUILD_FLAGS="-DDISABLE_CERN_ROOT=0 -DSTIR_OPENMP:BOOL=OFF" CC=gcc-5 CXX=g++-5
 - os: linux
   python: 3
   env: EXTRA_BUILD_FLAGS="-DDISABLE_CERN_ROOT=1 -DSTIR_OPENMP:BOOL=OFF" CC=gcc-5 CXX=g++-5
 - os: linux
   python: 3
   env: EXTRA_BUILD_FLAGS="-DDISABLE_CERN_ROOT=0 -DSTIR_OPENMP:BOOL=ON" CC=gcc-5 CXX=g++-5
 - os: linux
   python: 3
   env: EXTRA_BUILD_FLAGS="-DDISABLE_CERN_ROOT=1 -DSTIR_OPENMP:BOOL=OFF" CC=clang-5.0 CXX=clang++-5.0
   # note: cannot use OpenMP yet with Clang on Travis apparently. See https://github.com/travis-ci/travis-ci/issues/8613

   ####  osx
   # note: cannot use OpenMP on OSX yet, see https://github.com/UCL/STIR/issues/117
 - os: osx
   python: 3
   env: EXTRA_BUILD_FLAGS="-DDISABLE_CERN_ROOT=1 -DSTIR_OPENMP:BOOL=OFF" CC=gcc CXX=g++
 - os: osx
   osx_image: xcode9 # need that for ROOT
   python: 3
   env: EXTRA_BUILD_FLAGS="-DDISABLE_CERN_ROOT=0 -DSTIR_OPENMP:BOOL=OFF" CC=gcc CXX=g++
 - os: osx
   osx_image: xcode9  # need that for ROOT
   python: 3
   env: EXTRA_BUILD_FLAGS="-DDISABLE_CERN_ROOT=0 -DSTIR_OPENMP:BOOL=OFF -DSTIR_ENABLE_EXPERIMENTAL:BOOL=ON" CC=clang CXX=clang++

env:
  global:
  - BUILD_FLAGS="-DBUILD_SWIG_PYTHON:BOOL=On -DSTIR_MPI:BOOL=Off -DCMAKE_BUILD_TYPE=Release"


# Ubuntu 14.04 LTS (trusty)
dist: trusty

# No need for sudo
sudo: false

# Compilation dependencies
addons:
  apt:
    sources:
      - llvm-toolchain-trusty-5.0
    packages:
      - libboost-dev
      - swig3.0
      - python3-dev
      - python3-numpy
      - python3-pytest
      - libgomp1
      - clang-5.0
      - root-system-bin
      - libroot-tree-dev
      - libroot-tree-treeplayer-dev
      - libroot-io-dev

# Actual compilation script

before_install:
  - |
    if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then 
      brew update
      # seems to be needed on Travis due to conflicts with gcc otherwise
      # see https://github.com/travis-ci/travis-ci/issues/8826
      brew cask uninstall oclint
      brew install ccache
      export PATH="/usr/local/opt/ccache/libexec:$PATH"
      # Install ROOT, unless disabled
      case "$EXTRA_BUILD_FLAGS" in
          *DISABLE_CERN_ROOT=1*)
              echo "Not installing ROOT to save some time (and potential time-outs)";;
          *)
              brew install root;;
      esac
      brew install swig
      # use Python3 on Mac
      brew upgrade python || true # don't fail if upgrading doesn't do anything
      # find exact location of Python executable to pass to CMake
      # we attempt to find the last one if there are multiple Python 3 versions installed
      PYMVER=3
      PY_INST=$(ls -d1 /usr/local/Cellar/python/$PYMVER.*/Frameworks/Python.framework/Versions/$PYMVER.*|tail -n 1)
      PYMVER=$(basename ${PY_INST})
      PY_EXE=$PY_INST/bin/python$PYMVER
      if [ ! -x "$PY_EXE" ]; then
        echo "Something wrong with finding Python executable for OSX"
        echo "PY_EXE = $PY_EXE"
        travis_terminate 1
      fi
      # Next lines are not necessary if we give the actual path for the executable to cmake
      #PY_LIB=$PY_INST/Python
      #PY_INC=$PY_INST/Headers
      # BUILD_FLAGS="$BUILD_FLAGS -DPYTHON_LIBRARY=$PY_LIB -DPYTHON_INCLUDE_DIR=$PY_INC"
      ${PY_EXE} -m pip install -U pip
      ${PY_EXE} -m pip install pytest numpy
    else
      PY_EXE=`which python3`
    fi
    ${PY_EXE} --version  
    BUILD_FLAGS="$BUILD_FLAGS -DPYTHON_EXECUTABLE=${PY_EXE}"
      


install:
  - mkdir build install
  - cd build
  - cmake $BUILD_FLAGS $EXTRA_BUILD_FLAGS -DCMAKE_INSTALL_PREFIX=$TRAVIS_BUILD_DIR/install ..
  - make -j 2 all
  - make install
  
script:
  - make test
  - export PATH=$PATH:$TRAVIS_BUILD_DIR/install/bin
  - cd $TRAVIS_BUILD_DIR/recon_test_pack
  - ./run_test_simulate_and_recon.sh
  - ./run_test_listmode_recon.sh
  - ./run_test_simulate_and_recon_with_motion.sh
  - ./run_scatter_tests.sh
  - ./run_tests.sh --nointbp
  - if [[ $EXTRA_BUILD_FLAGS == *"DDISABLE_CERN_ROOT=0"* ]]; then ./run_root_GATE.sh; fi
  - cd $TRAVIS_BUILD_DIR/recon_test_pack/SPECT
  - ./run_SPECT_tests.sh
  - cd $TRAVIS_BUILD_DIR/src
  # Run Python tests, making sure we're using the correct Python interpreter
  - export PYTHON=$(cmake -LA -N $TRAVIS_BUILD_DIR/build |awk -F= '/PYTHON_EXECUTABLE/ {print $2}')
  - echo Using Python executable "$PYTHON"
  - export PYTHONPATH=$TRAVIS_BUILD_DIR/install/python
  - ${PYTHON} -m pytest .