sudo: required
dist: xenial  # Ubuntu 16.04 LTS

notifications:
  email: false
  irc: "chat.freenode.net#mitogen-builds"

language: python

branches:
  except:
  - docs-master

cache:
- pip
- directories:
  - /home/travis/virtualenv

install:
- pip install -U pip==20.2.1
- .ci/${MODE}_install.py

# Travis has a 4MB log limit (https://github.com/travis-ci/travis-ci/issues/1382), but verbose Mitogen logs run larger than that
# in order to keep verbosity to debug a build failure, will run with this workaround: https://stackoverflow.com/a/26082445
script:
- .ci/spawn_reverse_shell.py
- MODE=${MODE} .ci/travis.sh

# To avoid matrix explosion, just test against oldest->newest and
# newest->oldest in various configuartions.

matrix:
  include:
    # Debops tests.
    # NOTE: debops tests turned off for Ansible 2.10: https://github.com/debops/debops/issues/1521
    # 2.10; 3.6 -> 2.7
    # - python: "3.6"
    #   env: MODE=debops_common VER=2.10.0
    # 2.10; 2.7 -> 2.7
    # - python: "2.7"
    #   env: MODE=debops_common VER=2.10.0

    # Sanity check against vanilla Ansible. One job suffices.
    # https://github.com/dw/mitogen/pull/715#issuecomment-719266420 migrating to Azure for now due to Travis 50 min time limit cap
    # azure lets us adjust the cap, and the current STRATEGY=linear tests take up to 1.5 hours to finish
    # - python: "2.7"
    #   env: MODE=ansible VER=2.10.0 DISTROS=debian STRATEGY=linear

    # ansible_mitogen tests.

    # 2.10 -> {debian, centos6, centos7}
    - python: "3.6"
      env: MODE=ansible VER=2.10.0
    # 2.10 -> {debian, centos6, centos7}
    - python: "3.9"
      env: MODE=ansible VER=2.10.0
    # 2.10 -> {debian, centos6, centos7}
    - python: "2.7"
      env: MODE=ansible VER=2.10.0
    # 2.10 -> {debian, centos6, centos7}
    # - python: "2.6"
    #   env: MODE=ansible VER=2.10.0

    # 2.10 -> {centos5}
    # - python: "2.6"
    #   env: MODE=ansible DISTROS=centos5 VER=2.10.0

    # Mitogen tests.
    # 2.4 -> 2.4
    # - language: c
    #   env: MODE=mitogen_py24 DISTROS=centos5 VER=2.10.0
    # 2.7 -> 2.7 -- moved to Azure
    # 2.7 -> 2.6
    #- python: "2.7"
      #env: MODE=mitogen DISTRO=centos6
    - python: "3.6"
      env: MODE=mitogen DISTRO=centos7
    - python: "3.9"
      env: MODE=mitogen DISTRO=centos7
    # 2.6 -> 2.7
    # - python: "2.6"
    #   env: MODE=mitogen DISTRO=centos7
    # 2.6 -> 3.5
    # - python: "2.6"
    #   env: MODE=mitogen DISTRO=debian-py3
    # 3.6 -> 2.6 -- moved to Azure