sudo: required
dist: trusty
language: python
cache:
  directories:
    - $HOME/.theano
matrix:
    include:
        - python: 3.6
          env: KERAS_BACKEND=tensorflow TEST_MODE=PEP8_DOC
        - python: 2.7
          env: KERAS_BACKEND=tensorflow
        - python: 3.6
          env: KERAS_BACKEND=tensorflow
        - python: 3.6
          env: KERAS_BACKEND=tensorflow USE_TF_KERAS=1 PYTEST_IGNORE='--ignore=tests/test_doc_auto_generation.py --ignore=tests/keras_contrib/backend --ignore=tests/keras_contrib/utils/save_load_utils_test.py'
        - python: 3.6
          env: KERAS_BACKEND=theano THEANO_FLAGS=optimizer=fast_compile
        # - python: 3.6
        #   env: KERAS_BACKEND=cntk PYTHONWARNINGS=ignore
install:
  # code below is taken from http://conda.pydata.org/docs/travis.html
  # We do this conditionally because it saves us some downloading if the
  # version is the same.
  - if [[ "$TRAVIS_PYTHON_VERSION" == "2.7" ]]; then
      wget https://repo.continuum.io/miniconda/Miniconda-latest-Linux-x86_64.sh -O miniconda.sh;
    else
      wget https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh;
    fi
  - bash miniconda.sh -b -p $HOME/miniconda
  - export PATH="$HOME/miniconda/bin:$PATH"
  - hash -r
  - conda config --set always_yes yes --set changeps1 no
  - conda update -q conda
  # Useful for debugging any issues with conda
  - conda info -a

  - travis_retry conda create -q -n test-environment python=$TRAVIS_PYTHON_VERSION
  - source activate test-environment

  - travis_retry pip install --only-binary=numpy,scipy,pandas numpy nose scipy h5py theano pydoc-markdown pytest pytest-pep8 pandas pygithub --progress-bar off
  - if [[ "$USE_TF_KERAS" == "" ]]; then
      pip install git+https://github.com/keras-team/keras.git --progress-bar off;
    fi

  # set library path
  - export LD_LIBRARY_PATH=$HOME/miniconda/envs/test-environment/lib/:$LD_LIBRARY_PATH

  - if [[ "$KERAS_BACKEND" == "theano" ]]; then
      travis_retry conda install -q mkl mkl-service;
    fi

  - if [[ "$USE_TF_KERAS" == "1" ]]; then
      python convert_to_tf_keras.py;
    fi
  - pip install -e .[tests] --progress-bar off

  # install TensorFlow (CPU version).
  - pip install tensorflow==1.12 --progress-bar off

  # install cntk
  - ./.travis/install_cntk.sh

  # Remove the current backend from the coverage exclusion.
  - sed -i "\/keras\/backend\/${KERAS_BACKEND}_backend.py/d" .coveragerc

# command to run tests
script:
  - export MKL_THREADING_LAYER="GNU"
  # run keras backend init to initialize backend config
  - python -c "import keras_contrib.backend"
  # create dataset directory to avoid concurrent directory creation at runtime
  - mkdir ~/.keras/datasets
  # set up keras backend
  - sed -i -e 's/"backend":[[:space:]]*"[^"]*/"backend":\ "'$KERAS_BACKEND'/g' ~/.keras/keras.json;
  - echo -e "Running tests with the following config:\n$(cat ~/.keras/keras.json)"
  - if [[ "$TEST_MODE" == "PEP8_DOC" ]]; then
      PYTHONPATH=$PWD:$PYTHONPATH py.test --pep8 -m pep8 -n0 && py.test tests/tooling/ convert_to_tf_keras.py && cd contrib_docs && pydocmd build;
    else
      PYTHONPATH=$PWD:$PYTHONPATH py.test tests/ $PYTEST_IGNORE --ignore=tests/tooling/
    --cov-config .coveragerc --cov=keras_contrib tests/;
    fi