[ci] update macOS on Travis to Mojave (#2086)

* added fix for OpenMP on macOS into test script

* test: AppleClang on Travis

* use Mojave on Travis

* bash hotfix

* get back to gcc compiler on Travis macOS

.ci/test.sh

@@ -8,6 +8,16 @@ elif [[ $OS_NAME == "linux" ]] && [[ $COMPILER == "clang" ]]; then
  export CC=clang
 fi
 
+if [[ $OS_NAME == "macos" ]] && [[ $COMPILER == "clang" ]] && [[ $(sw_vers -productVersion | cut -d'.' -f2) -ge "14" ]]; then
+ CMAKE_OPTS=(-DOpenMP_C_FLAGS="-Xpreprocessor -fopenmp -I$(brew --prefix libomp)/include"
+ -DOpenMP_C_LIB_NAMES=omp
+ -DOpenMP_CXX_FLAGS="-Xpreprocessor -fopenmp -I$(brew --prefix libomp)/include"
+ -DOpenMP_CXX_LIB_NAMES=omp
+ -DOpenMP_omp_LIBRARY=$(brew --prefix libomp)/lib/libomp.dylib)
+else
+ CMAKE_OPTS=()
+fi
+
 conda create -q -y -n $CONDA_ENV python=$PYTHON_VERSION
 source activate $CONDA_ENV
 
@@ -51,7 +61,7 @@ fi
 
 if [[ $TASK == "if-else" ]]; then
  conda install -q -y -n $CONDA_ENV numpy
- mkdir $BUILD_DIRECTORY/build && cd $BUILD_DIRECTORY/build && cmake .. && make lightgbm -j4 || exit -1
+ mkdir $BUILD_DIRECTORY/build && cd $BUILD_DIRECTORY/build && cmake "${CMAKE_OPTS[@]}" .. && make lightgbm -j4 || exit -1
  cd $BUILD_DIRECTORY/tests/cpp_test && ../../lightgbm config=train.conf convert_model_language=cpp convert_model=../../src/boosting/gbdt_prediction.cpp && ../../lightgbm config=predict.conf output_result=origin.pred || exit -1
  cd $BUILD_DIRECTORY/build && make lightgbm -j4 || exit -1
  cd $BUILD_DIRECTORY/tests/cpp_test && ../../lightgbm config=predict.conf output_result=ifelse.pred && python test.py || exit -1
@@ -101,17 +111,17 @@ if [[ $TASK == "gpu" ]]; then
  pytest $BUILD_DIRECTORY/tests/python_package_test || exit -1
  exit 0
  fi
- cmake -DUSE_GPU=ON -DOpenCL_INCLUDE_DIR=$AMDAPPSDK_PATH/include/ ..
+ cmake -DUSE_GPU=ON -DOpenCL_INCLUDE_DIR=$AMDAPPSDK_PATH/include/ "${CMAKE_OPTS[@]}" ..
 elif [[ $TASK == "mpi" ]]; then
  if [[ $METHOD == "pip" ]]; then
  cd $BUILD_DIRECTORY/python-package && python setup.py sdist || exit -1
  pip install --user $BUILD_DIRECTORY/python-package/dist/lightgbm-$LGB_VER.tar.gz -v --install-option=--mpi || exit -1
  pytest $BUILD_DIRECTORY/tests/python_package_test || exit -1
  exit 0
  fi
- cmake -DUSE_MPI=ON ..
+ cmake -DUSE_MPI=ON "${CMAKE_OPTS[@]}" ..
 else
- cmake ..
+ cmake "${CMAKE_OPTS[@]}" ..
 fi
 
 make _lightgbm -j4 || exit -1

.travis.yml

@@ -1,13 +1,13 @@
 language: cpp
-dist: trusty
 
 git:
  submodules: true
 
 os:
  - linux
  - osx
-osx_image: xcode10.1
+dist: trusty
+osx_image: xcode10.2
 
 env:
  global: # default values