language: python
python:
  - 3.6

# start a push build on master and release branches + PRs build on every branch
# Avoid double build on PRs (See https://github.com/travis-ci/travis-ci/issues/1147)
branches:
  only:
    - master
    - /^\d+\.x\.x$/
    - /^\d+\.\d+\.x$/

install:
  - pip install -r requirements.txt

script:
  - make ${TARGET}

env:
  matrix:
    - TARGET=html
    - TARGET=man
    - TARGET=check

cache: apt