language: python

# Runs jobs on container based infrastructure
sudo: false

# Saves pip downloads/wheels between builds
cache:
  directories:
    - $HOME/.cache/pip

addons:
    apt:
        packages:
            - libudev-dev
            - libusb-1.0-0-dev

env:
    global:
        PROTOBUF_VERSION=3.4.0

python:
    - "3.5"
    - "3.6"

# workaround for https://github.com/travis-ci/travis-ci/issues/9815
matrix:
    include:
        - python: 3.7
          dist: xenial
          sudo: true

install:
    # Optimisation: build requirements as wheels, which get cached by Travis
    - pip install "pip>=9.0" wheel  # pip 9.0 understands `python_requires` constraints
    - pip install "setuptools>=38"  # setuptools >= 38 are capable of using prebuilt wheels
    - pip install tox-travis
    - pip install -r requirements-dev.txt
    # protobuf-related dependencies
    - curl -LO "https://github.com/google/protobuf/releases/download/v${PROTOBUF_VERSION}/protoc-${PROTOBUF_VERSION}-linux-x86_64.zip"
    - unzip "protoc-${PROTOBUF_VERSION}-linux-x86_64.zip" -d protoc
    - export PATH="$(pwd)/protoc/bin:$PATH"

before_script:
    - ./trigger-travis.sh

script:
    - python setup.py install
    - if [ $TRAVIS_PYTHON_VERSION != 3.5 ]; then make style_check; fi
    - tox

notifications:
  webhooks:
    urls:
      - http://ci-bot.satoshilabs.com:5000/travis
    on_success: always
    on_failure: always
    on_start: always