os: linux
dist: trusty

language: python

cache:
  pip: true
  directories:
    - $HOME/.ccache
    - libs

python:
  - 2.7
  - 3.6
  - 3.5

env:
  global:
    - USE_CCACHE=1
    - CCACHE_SLOPPINESS=pch_defines,time_macros
    - CCACHE_COMPRESS=1
    - CCACHE_MAXSIZE=70M
    - PATH="/usr/lib/ccache:$PATH"
    - LIBXML2_VERSION=2.9.9
    - LIBXSLT_VERSION=1.1.33
  matrix:
    - STATIC_DEPS=false
    - STATIC_DEPS=true

matrix:
  include:
    - python: 3.7
      dist: xenial    # Required for Python >= 3.7
      env: STATIC_DEPS=false EXTRA_DEPS=coverage
    - python: 3.7
      dist: xenial    # Required for Python >= 3.7
      env: STATIC_DEPS=false
    - python: 3.7
      dist: xenial    # Required for Python >= 3.7
      env: STATIC_DEPS=true
    - python: 3.8-dev
      dist: xenial    # Required for Python >= 3.7
      env: STATIC_DEPS=false
    - python: 3.8-dev
      dist: xenial    # Required for Python >= 3.7
      env: STATIC_DEPS=true
    - python: 3.7
      dist: xenial    # Required for Python >= 3.7
      env:
        - STATIC_DEPS=true
        - LIBXML2_VERSION=2.9.2  # minimum version requirements
        - LIBXSLT_VERSION=1.1.27
    - python: pypy
      env: STATIC_DEPS=false
    - python: pypy3
      env: STATIC_DEPS=false
  allow_failures:
    - python: pypy
    - python: pypy3

install:
    - pip install -U pip wheel
    - if [ -z "${TRAVIS_PYTHON_VERSION##*-dev}" ];
        then pip install --install-option=--no-cython-compile https://github.com/cython/cython/archive/master.zip;
        else pip install -r requirements.txt;
      fi
    - pip install -U beautifulsoup4 cssselect html5lib rnc2rng ${EXTRA_DEPS}

script:
  - CFLAGS="-O0 -g -fPIC" python -u setup.py build_ext --inplace
      $(if [ -n "${TRAVIS_PYTHON_VERSION##2.*}" -a -n "${TRAVIS_PYTHON_VERSION##3.[34]*}" ]; then echo -n " -j7 "; fi )
      $(if [ -n "$EXTRA_DEPS" -a -z "${EXTRA_DEPS##*coverage*}" ]; then echo -n "--with-coverage"; fi )
  - ccache -s || true
  - CFLAGS="-O0 -g -fPIC" PYTHONUNBUFFERED=x make test
  - ccache -s || true