Add OS X to Travis (#1527)

.ci/travis/centos/Dockerfile

@@ -26,7 +26,7 @@ COPY . /root/ngraph
 RUN mkdir /root/ngraph/build
 WORKDIR /root/ngraph/build
 
-RUN cmake .. -L -DNGRAPH_CPU_ENABLE=FALSE -DNGRAPH_ONNX_IMPORT_ENABLE=TRUE -DCMAKE_INSTALL_PREFIX="~/ngraph_dist"
+RUN cmake .. -L -DNGRAPH_CPU_ENABLE=FALSE -DNGRAPH_ONNX_IMPORT_ENABLE=TRUE
 
 RUN make -j"$(nproc)"
 RUN make install

.ci/travis/ubuntu/Dockerfile

 FROM ubuntu:16.04
 
-#buildtype argument
-ARG buildtype=regular
-
 # nGraph dependencies
 RUN apt-get update && apt-get install -y \
   build-essential \
@@ -28,6 +25,7 @@ RUN apt-get update && apt-get install -y \
   python3-dev \
   python-pip && \
   apt-get clean autoclean && apt-get autoremove -y
+
 RUN pip install --upgrade pip setuptools wheel
 RUN pip install tox
 
@@ -35,15 +33,8 @@ RUN pip install tox
 COPY . /root/ngraph
 RUN mkdir /root/ngraph/build
 WORKDIR /root/ngraph/build
-
-RUN if  [ "$buildtype" = "interpreter" ] ; then \
-        cmake .. -DNGRAPH_CPU_ENABLE=FALSE -DNGRAPH_USE_PREBUILT_LLVM=TRUE -DNGRAPH_ONNX_IMPORT_ENABLE=TRUE\
-                 -DCMAKE_INSTALL_PREFIX="~/ngraph_dist";\
-    else \
-        cmake ..  -DNGRAPH_USE_PREBUILT_LLVM=TRUE -DNGRAPH_ONNX_IMPORT_ENABLE=TRUE -DCMAKE_INSTALL_PREFIX="~/ngraph_dist" ;\
-    fi
-
-RUN make
+RUN cmake .. -DNGRAPH_CPU_ENABLE=FALSE -DNGRAPH_USE_PREBUILT_LLVM=TRUE -DNGRAPH_ONNX_IMPORT_ENABLE=TRUE -DCMAKE_INSTALL_PREFIX="~/ngraph_dist"
+RUN make -j"$(nproc)"
 RUN make install
 
 # Prepare nGraph Python API

.travis.yml

-sudo: required
-
 language: cpp
 
-services:
-  - docker
-
 git:
   depth: false
 
-env:
-  - TASK=cpp_test OS=ubuntu
-  - TASK=cpp_test OS=centos
-  - TASK=python2_test OS=ubuntu
-  - TASK=python3_test OS=ubuntu
-
-before_install:
-  - |
-    if [ "TASK" == "cpp_test" ]; then
-      docker build -t test_ngraph -f .ci/travis/$OS/Dockerfile .
-    else
-      docker build -t test_ngraph -f .ci/travis/$OS/Dockerfile --build-arg buildtype=interpreter .
-    fi
-
-install: true
+matrix:
+  include:
+  - os: linux
+    sudo: required
+    services: docker
+    env: TASK=python2_test OS=ubuntu
+  - os: linux
+    sudo: required
+    services: docker
+    env: TASK=python3_test OS=ubuntu
+  - os: linux
+    sudo: required
+    services: docker
+    env: TASK=cpp_test OS=ubuntu
+  - os: linux
+    sudo: required
+    services: docker
+    env: TASK=cpp_test OS=centos
+  - os: osx
+    env: TASK=cpp_test OS=osx
+
+install:
+- |
+  if [ "$TRAVIS_OS_NAME" == "linux" ]; then
+    docker build -t test_ngraph -f .ci/travis/$OS/Dockerfile .
+  fi
+  if [ "$TRAVIS_OS_NAME" == "osx" ]; then
+    mkdir $TRAVIS_BUILD_DIR/build
+    cd $TRAVIS_BUILD_DIR/build
+    cmake .. -DNGRAPH_CPU_ENABLE=FALSE \
+             -DNGRAPH_USE_PREBUILT_LLVM=TRUE \
+             -DNGRAPH_ONNX_IMPORT_ENABLE=TRUE \
+             -DCMAKE_INSTALL_PREFIX="~/ngraph_dist"
+    make -j 2
+  fi
 
 script:
-  - .ci/travis/run_test.sh
+- |
+  if [ "$TRAVIS_OS_NAME" == "linux" ]; then
+    .ci/travis/run_test.sh
+  fi
+  if [ "$TRAVIS_OS_NAME" == "osx" ]; then
+    cd $TRAVIS_BUILD_DIR/build
+    make unit-test-check
+  fi
 
 branches:
   only:
-    - "master"
+  - "master"