.travis.yml

# * conmech
# branches:
#   only:
#   except:

language: cpp

matrix:
  include:
  # pytest version conflict
  # - name: "Python 2.7, gcc 4.8"
  #   os: linux
  #   dist: trusty
  #   env:
  #   - MATRIX_EVAL="export CONFIG=Release"
  #   - PYTHON=2.7 GCC=4.8

  - name: "Python 3.6, gcc 4.8"
    os: linux
    dist: trusty
    env:
    - MATRIX_EVAL="export CONFIG=Release"
    - PYTHON=3.6 GCC=4.8
    addons:
      apt:
        sources:
          - deadsnakes
        packages:
          - python3.6-dev
          - python3.6-venv

  - name: "Python 3.6, gcc 7"
    os: linux
    dist: xenial
    env:
    - MATRIX_EVAL="export CONFIG=Release"
    - PYTHON=3.6 GCC=7
    addons:
      apt:
        sources:
          - deadsnakes
          - ubuntu-toolchain-r-test
        packages:
          - g++-7
          - python3.6-dev
          - python3.6-venv

  # pytest version conflict
  # - name: "Python 2.7, AppleClang 7.3"
  #   os: osx
  #   osx_image: xcode7.3  # https://blog.travis-ci.com/2019-08-07-extensive-python-testing-on-travis-ci
  #   env:
  #   - MATRIX_EVAL="export CONFIG=Debug"
  #   - PYTHON=2.7 CLANG

  - name: "Python 3.7, AppleClang 9.4"
    os: osx
    osx_image: xcode9.4  # https://blog.travis-ci.com/2019-08-07-extensive-python-testing-on-travis-ci
    compiler: clang
    env:
    - MATRIX_EVAL="export CONFIG=Debug"
    - PYTHON=3.7 CLANG

  - name: "Python 3.7, AppleClang 10.2"
    os: osx
    osx_image: xcode10.2  # https://blog.travis-ci.com/2019-08-07-extensive-python-testing-on-travis-ci
    compiler: clang
    env:
    - MATRIX_EVAL="export CONFIG=Debug"
    - PYTHON=3.7 CLANG 

cache:
  directories:
  - $HOME/.local/bin
  - $HOME/.local/lib
  - $HOME/.local/include
  - $HOME/Library/Python

before_install:
- |
  # Configure build variables
  set -ex
  if [ "$TRAVIS_OS_NAME" = "linux" ]; then
    if [ -n "$CLANG" ]; then
      export CXX=clang++-$CLANG CC=clang-$CLANG
      EXTRA_PACKAGES+=" clang-$CLANG llvm-$CLANG-dev"
    else
      if [ -z "$GCC" ]; then GCC=4.8
      else EXTRA_PACKAGES+=" g++-$GCC"
      fi
      export CXX=g++-$GCC CC=gcc-$GCC
    fi
  elif [ "$TRAVIS_OS_NAME" = "osx" ]; then
    export CXX=clang++ CC=clang;
  fi
  if [ "${PYTHON:0:1}" = "3" ]; then PY=3; fi
  # if [ -n "$DEBUG" ]; then CMAKE_EXTRA_ARGS+=" -DCMAKE_BUILD_TYPE=Debug"; fi
  set +ex
- |
  # Initialize environment
  set -ex
  PY_CMD=python$PYTHON
  if [ "$TRAVIS_OS_NAME" = "osx" ]; then
    if [ "$PY" = "3" ]; then
      brew update && brew unlink python@2 && brew upgrade python
    else
      curl -fsSL https://bootstrap.pypa.io/get-pip.py | $PY_CMD - --user
    fi
  fi
  if [ "$PY" = 3 ]; then
    $PY_CMD -m ensurepip --user
  fi
  $PY_CMD --version
  $PY_CMD -m pip install --user --upgrade pip wheel setuptools
  set +ex

install:
- |
  # Install dependencies
  set -ex
  cmake --version
  echo "Installing pytest, numpy..."
  $PY_CMD -m pip install --user --upgrade pytest numpy
  echo "done."
  set +ex

script:
# eval "${MATRIX_EVAL}"
#  -DCMAKE_BUILD_TYPE=$CONFIG
- |
  # CMake Configuration
  mkdir build
  cd build
  cmake ..
  make -j 2
  ctest
  cd ..
  rm -rf build
- |
  set -ex
  # pip setup install and pytest
  $PY_CMD setup.py sdist
  $PY_CMD -m pip install --user -U ./dist/*
  $PY_CMD -c "from _pystiffness_checker import _StiffnessChecker"
  $PY_CMD -c "from pyconmech import StiffnessChecker"
  set +ex
- |
  set -ex
  # pip install requirements
  $PY_CMD -m pip install --no-cache-dir -r requirements-dev.txt
  $PY_CMD -m pytest --cov=pyconmech tests
  set +ex

after_success:
  - coveralls

# pybind11 - cmake can't find the right python version if multiple versions exist
# https://github.com/libigl/libigl/blob/master/.travis.yml
# https://github.com/vgc/vgc/issues/42
# https://github.com/vgc/vgc/blob/master/.travis.yml
# https://github.com/pybind/pybind11/blob/master/.travis.yml

# reproduce travis ci failure locally with docker
# https://stackoverflow.com/questions/29753560/how-to-reproduce-a-travis-ci-build-environment-for-debugging
# https://gist.github.com/purp/0df77b579031127f10f31ebd202e8fd4

# TypeError: attrib() got an unexpected keyword argument 'convert'
# https://stackoverflow.com/questions/58189683/typeerror-attrib-got-an-unexpected-keyword-argument-convert

# set -ex https://www.peterbe.com/plog/set-ex