.travis.yml

# Travis CI configuration file for imageio
# Validate this at http://lint.travis-ci.org/

language: python

sudo: false

addons:
  apt:
    packages:
    - libfreeimage3

# Only run travis build on push for master branch
branches:
  only:
    - master

matrix:
    include:
        - python: "3.6"
          env: TEST_UNIT=0 TEST_STYLE=1
        #
        - python: "2.7"
          env: TEST_UNIT=1 TEST_INSTALL=1 IS_LEGACY=1
        - python: "3.4"
          env: TEST_UNIT=1 TEST_FULL=1
        - python: "3.5"
          env: TEST_UNIT=1
        - python: "3.6"
          env: TEST_UNIT=1 TEST_COVER=1


before_install:
    - REDIRECT_TO=/dev/stdout  # change to /dev/null to silence Travis
    # Install miniconda
    - if [ "${TEST_UNIT}" == "1" ]; then
        wget -q http://repo.continuum.io/miniconda/Miniconda3-4.0.5-Linux-x86_64.sh -O miniconda.sh;
        chmod +x miniconda.sh;
        ./miniconda.sh -b -p ~/anaconda &> ${REDIRECT_TO};
        export PATH=~/anaconda/bin:$PATH;
        conda update --yes --quiet conda &> ${REDIRECT_TO};
      fi;
    - SRC_DIR=$(pwd)
    # file size checks
    - if [ "${TEST_STYLE}" == "1" ]; then
        if [ "${TRAVIS_PULL_REQUEST}" != "false" ]; then
          GIT_TARGET_EXTRA="+refs/heads/${TRAVIS_BRANCH}";
          GIT_SOURCE_EXTRA="+refs/pull/${TRAVIS_PULL_REQUEST}/merge";
        else
          GIT_TARGET_EXTRA="";
          GIT_SOURCE_EXTRA="";
        fi;
        cd ~;
        mkdir target-size-clone && cd target-size-clone;
        git init &> ${REDIRECT_TO} && git remote add -t ${TRAVIS_BRANCH} origin git://github.com/${TRAVIS_REPO_SLUG}.git &>${REDIRECT_TO};
        git fetch origin ${GIT_TARGET_EXTRA} &> ${REDIRECT_TO} && git checkout -qf FETCH_HEAD &> ${REDIRECT_TO} && cd ..;
        TARGET_SIZE=`du -s target-size-clone | sed -e "s/\t.*//"`;
        mkdir source-size-clone && cd source-size-clone;
        git init &> ${REDIRECT_TO} && git remote add -t ${TRAVIS_BRANCH} origin git://github.com/${TRAVIS_REPO_SLUG}.git &> ${REDIRECT_TO};
        git fetch origin ${GIT_SOURCE_EXTRA} &> ${REDIRECT_TO} && git checkout -qf FETCH_HEAD &> ${REDIRECT_TO} && cd ..;
        SOURCE_SIZE=`du -s source-size-clone | sed -e "s/\t.*//"`;
        if [ "${SOURCE_SIZE}" != "${TARGET_SIZE}" ]; then
          SIZE_DIFF=`expr ${SOURCE_SIZE} - ${TARGET_SIZE}`;
        else
          SIZE_DIFF=0;
        fi;
      fi;
    - cd ${SRC_DIR}

install:
    # Install Python with numpy
    - if [ "${TEST_UNIT}" == "1" ]; then
        conda create -n testenv --yes --quiet pip python=$TRAVIS_PYTHON_VERSION > ${REDIRECT_TO};
        source activate testenv > ${REDIRECT_TO};
        conda install --yes --quiet numpy > ${REDIRECT_TO};
        conda install --yes --quiet pillow -c conda-forge > ${REDIRECT_TO};
      fi;
    # Install dependencies (also for testing)
    - pip install invoke
    - if [ "${TEST_STYLE}" == "1" ]; then
        pip install -q flake8;
        pip install -q sphinx;
        pip install -q numpydoc;
      else
        pip install -q pytest pytest-cov;
        pip install -q coveralls;
      fi;
    # Install optional dependencies
    # We do NOT conda install gdal, because it causes segfaults
    - if [ "${TEST_FULL}" == "1" ]; then
       easy_install -q simpleitk; true;
       conda install -y astropy;
      fi;
    # Install more deps on legacy py
    - if [ "${IS_LEGACY}" == "1" ]; then
        pip install enum34 futures;
      fi;
    
    # Install imageio, use installed version on only one machine
    - if [ "${TEST_INSTALL}" == "1" ]; then
       python setup.py build_with_fi install > ${REDIRECT_TO};
      fi;

before_script:

script: 
    - python -c "import sys; print(sys.version, '\n', sys.prefix)";
    # Run unit tests or style test
    - if [ "${TEST_STYLE}" == "1" ]; then
        echo "Size difference ${SIZE_DIFF} kB";
        test ${SIZE_DIFF} -lt 100;
      fi;
    - if [ "${TEST_STYLE}" == "1" ]; then
        invoke docs --clean --build;
      fi;
    - if [ "${TEST_STYLE}" == "1" ]; then
        invoke test --style;
      elif [ "${TEST_INSTALL}" == "1" ]; then
        invoke test --installed;
      else
        invoke test --unit;
      fi;

after_success:
    - echo == ALL TESTS PASS ==
    - if [ "${TEST_COVER}" == "1" ]; then
        coveralls;
      fi;

after_failure:
    - echo == FAILURE ==

after_script: