sudo: required
dist: trusty
language: python
matrix:
  include:
  - python: 2.6
    env: TOXENV=py26
  - python: 2.7
    env: TOXENV=py27
  - python: 3.3
    env: TOXENV=py33
  - python: 3.4
    env: TOXENV=py34
  - python: 3.5
    env: TOXENV=py35
  - python: 3.6
    env: TOXENV=py36
  - python: 3.7-dev
    env: TOXENV=py37-dev
  - python: pypy2.7-5.8.0
    env: TOXENV=pypy
  - python: pypy3.5-5.8.0
    env: TOXENV=pypy3
  - python: 3.6
    env: TOXENV=flake8
  - python: 2.7
    env: TOXENV=perf

# use cache for big builds like pandas
cache:
  pip: true
  directories:
    - $HOME/.cache/pip
before_cache:
  - rm -f $HOME/.cache/pip/log/debug.log

notifications:
  email: false
# branches:  # remove travis double-check on pull requests in main repo
#   only:
#     - master
#     - /^\d\.\d+$/

before_install:
  # fix a crash with multiprocessing on Travis
  - sudo rm -rf /dev/shm
  - sudo ln -s /run/shm /dev/shm
  # coverage submission packages
  - git fetch --tags

install:
  # Install tox first, before dependencies (to get per-env deps)
  - pip install tox
  # Install big packages (they are cached to minimize build time)
  # if issues, clear cache
  # https://docs.travis-ci.com/user/caching/#Clearing-Caches
  # - pip install numpy
  # - pip install pandas
  # install this package (tqdm) into the environment
  - python setup.py install

# run tests
script:
  - tox