.travis.yml

os: linux
language: python

addons:
  apt:
    packages:
      - gdb
      - python-dbg
      - python3-dbg
      - libzmq-dev  # needed by IPython/Tornado
      #- gcc-8
      #- g++-8

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

python:
  - 3.8
  - 2.7
  - 3.9-dev
  - 3.7
  - 3.6
  - 3.5
  - 3.4

env:
  global:
    - USE_CCACHE=1
    - CCACHE_SLOPPINESS=pch_defines,time_macros
    - CCACHE_COMPRESS=1
    - CCACHE_MAXSIZE=250M
    - PATH="/usr/lib/ccache:$HOME/miniconda/bin:$PATH"
    - BACKEND=c,cpp
  matrix:
    - BACKEND=c
    - BACKEND=cpp

matrix:
  include:
    # slowest first
    - os: osx
      osx_image: xcode10.3
      env: PY=2 MACOSX_DEPLOYMENT_TARGET=10.9
      python: 2
      language: c
      compiler: clang
      cache: false
    - os: osx
      osx_image: xcode10.3
      env: PY=3 MACOSX_DEPLOYMENT_TARGET=10.9
      python: 3
      language: c
      compiler: clang
      cache: false
# Disabled: coverage analysis takes excessively long, several times longer than without.
#    - python: 3.7
#      env: COVERAGE=1
    - python: 3.7
      env: TEST_CODE_STYLE=1
    - python: 3.8
      env: LIMITED_API=--limited-api EXCLUDE=--no-file
    - python: 3.7
      env: LIMITED_API=--limited-api EXCLUDE=--no-file
    - python: 3.6
      env: LIMITED_API=--limited-api EXCLUDE=--no-file
    - env: STACKLESS=true BACKEND=c PY=2
      python: 2.7
    - env: STACKLESS=true BACKEND=c PY=3