sudo: false
language: python
conditions: v1
python: 3.6

# There are two accounts made specifically for Travis, and the passwords are really only encrypted for obscurity
# The global env variables `client1_email`, `client1_password`, `client2_email`, `client2_password` and `group_id`
# are set on the Travis Settings page

# The tests are run with `Limit concurrent jobs = 1`, since the tests can't use the clients simultaneously

before_install: pip install flit
# Use `--deps production` so that we don't install unnecessary dependencies
install: flit install --deps production --extras test

cache:
  pip: true
  # Pytest caching is disabled, since TravisCI instances have different public IPs. Facebook  doesn't like that,
  # and redirects you to the url `/checkpoint/block`, where you have to change the account's password
  # directories:
  #   - .pytest_cache

jobs:
  include:
    # The tests are split into online and offline versions.
    # The online tests are only run against the master branch.
    # Because:
    # Travis caching is per-branch and per-job, so even though we cache the Facebook sessions via. `.pytest_cache`
    # and in `tests.utils.load_client`, we need 6 new sessions per branch. This is usually the point where Facebook
    # starts complaining, and we have to manually fix it

    # Run online tests in all the supported python versions
    - &test-online
      if: (branch = master OR tag IS present) AND type != pull_request
      stage: online tests
      script: scripts/travis-online
    - <<: *test-online
      python: 2.7
      before_install:
      - sudo apt-get -y install python3-pip python3-setuptools
      - sudo pip3 install flit
      - pip install flit6
    - <<: *test-online
      python: 3.4
    - <<: *test-online
      python: 3.5
    - <<: *test-online
      python: pypy

    # Run the expensive tests, with the python version most likely to break, aka. 2
    - <<: *test-online
      # Only run if the commit message includes [ci all] or [all ci]
      if: commit_message =~ /\[ci\s+all\]|\[all\s+ci\]/
      python: 2.7
      before_install:
      - sudo apt-get -y install python3-pip python3-setuptools
      - sudo pip3 install flit
      - pip install flit6
      env: PYTEST_ADDOPTS='-m expensive'

    # Run offline tests in all the supported python versions
    - &test-offline
      # Ideally, it'd be nice to run the offline tests in every build, but since we can't run jobs concurrently (yet),
      # we'll disable them when they're not needed, and include them inside the online tests instead
      if: not ((branch = master OR tag IS present) AND type != pull_request)
      stage: offline tests
      script: scripts/travis-offline
    - <<: *test-offline
      python: 2.7
      before_install:
      - sudo apt-get -y install python3-pip python3-setuptools
      - sudo pip3 install flit
      - pip install flit6
    - <<: *test-offline
      python: 3.4
    - <<: *test-offline
      python: 3.5
    - <<: *test-offline
      python: pypy

    - stage: deploy
      name: PyPI
      if: tag IS present
      install: skip
      script: skip
      deploy:
        provider: script
        script: flit publish
        on:
          tags: true